The Steward Alerts for Science System (SASSy) provides access to various alerts and cross-correlation with catalogs. We provide support for queries to alerts and database(s) sourced from the Galaxy List for the Advanced Detector Era (GLADE), the Gravitational Wave Galaxy Catalog (GWGC), (ad-hoc) alerts from the Laser Interferometer Gravitational-Wave Observatory (LIGO), the Transient Name Server (TNS) and the Zwicky Transient Facility (ZTF). Further information is available in the (help) and (api) sections.

These pages are adapted from the code from LCOGT (Las Cumbres Observatory Global Telescope) which delivers the MARS (Make Alerts Really Simple) website.



Route(s) Description Example(s)
/sassy SASSy home page https://sassy.as.arizona.edu/sassy
/sassy/glade_q3c GLADE (Q3C) home page (GET, POST) https://sassy.as.arizona.edu/sassy/glade_q3c
/sassy/glade_q3c/dbid GLADE (Q3C) data for given database dbid https://sassy.as.arizona.edu/sassy/glade_q3c/777
/sassy/glade_q3c/text GLADE (Q3C) description https://sassy.as.arizona.edu/sassy/glade_q3c/text
/sassy/gwgc_q3c GWGC (Q3C) home page (GET, POST) https://sassy.as.arizona.edu/sassy/gwgc_q3c
/sassy/gwgc_q3c/dbid GWGC (Q3C) data for given database dbid https://sassy.as.arizona.edu/sassy/gwgc_q3c/777
/sassy/gwgc_q3c/text GWGC (Q3C) description https://sassy.as.arizona.edu/sassy/gwgc_q3c/text
/sassy/ligo_q3c LIGO (Q3C) home page (GET, POST) https://sassy.as.arizona.edu/sassy/ligo_q3c
/sassy/ligo_q3c/dbid LIGO (Q3C) data for given database dbid https://sassy.as.arizona.edu/sassy/ligo_q3c/777
/sassy/ligo_q3c/text LIGO (Q3C) description https://sassy.as.arizona.edu/sassy/ligo_q3c/text
/sassy/tns_q3c TNS (Q3C) home page (GET, POST) https://sassy.as.arizona.edu/sassy/tns_q3c
/sassy/tns_q3c/dbid TNS (Q3C) data for given database dbid https://sassy.as.arizona.edu/sassy/tns_q3c/777
/sassy/tns_q3c/text TNS (Q3C) description https://sassy.as.arizona.edu/sassy/tns_q3c/text
/sassy/ztf ZTF home page (GET, POST) https://sassy.as.arizona.edu/sassy/ztf
/sassy/ztf/avros/date ZTF JSON list of all AVRO files for given date https://sassy.as.arizona.edu/sassy/ztf/avros/20180601
/sassy/ztf/files/filepath ZTF download file from given filepath https://sassy.as.arizona.edu/sassy/ztf/files/2018/06/01/516169962215010004.avro
/sassy/ztf/id ZTF data for given database id https://sassy.as.arizona.edu/sassy/ztf/777
/sassy/ztf/id/cutout/Science ZTF download science image cutout for given database id https://sassy.as.arizona.edu/sassy/ztf/777/cutout/Science
/sassy/ztf/id/cutout/Difference ZTF download difference image cutout for given database id https://sassy.as.arizona.edu/sassy/ztf/777/cutout/Difference
/sassy/ztf/id/cutout/Template ZTF download template image cutout for given database id https://sassy.as.arizona.edu/sassy/ztf/777/cutout/Template
/sassy/ztf/text/ ZTF description https://sassy.as.arizona.edu/sassy/ztf/text

API Return ObsReq with ... ArgName[Type]: Description Example(s)
?astrocone=name,radius cone search by name name[string]: name, radius[float]: ° https://sassy.as.arizona.edu/sassy/glade_q3c?astrocone=m51,5.0 Object lookup via astropy.SkyCoord.from_name().
?b_abs__gte=bmag |B| ≥ bmag bmag[float]: magnitude https://sassy.as.arizona.edu/sassy/glade?b_abs__gte=1.50
https://sassy.as.arizona.edu/sassy/glade_q3c?b_abs__gte=1.50
?b_abs__lte=bmag |B| ≤ bmag bmag[float]: magnitude https://sassy.as.arizona.edu/sassy/glade?b_abs__lte=1.50
https://sassy.as.arizona.edu/sassy/glace_q3c?b_abs__lte=1.50
?b_err__gte=berr ±B (apparent) ≥ berr berr[float]: ±magnitude https://sassy.as.arizona.edu/sassy/glade?b_err__gte=0.50
https://sassy.as.arizona.edu/sassy/glade_q3c?b_err__gte=0.50
?b_err__lte=berr ±B (apparent) ≤ berr berr[float]: ±magnitude https://sassy.as.arizona.edu/sassy/glade?b_err__lte=0.50
https://sassy.as.arizona.edu/sassy/glade_q3c?b_err__lte=0.50
?b_mag__gte=bmag B (apparent) ≥ bmag bmag[float]: magnitude https://sassy.as.arizona.edu/sassy/glade?b_mag__gte=10.0
https://sassy.as.arizona.edu/sassy/glade_q3c?b_mag__gte=10.0
?b_mag__lte=bmag B (apparent) ≤ bmag bmag[float]: magnitude https://sassy.as.arizona.edu/sassy/glade?b_mag__lte=10.0
https://sassy.as.arizona.edu/sassy/glade_q3c?b_mag__lte=10.0
?cone=ra,dec,radius cone search by co-ordinate ra[float]: J2k°, dec[float]: J2k°, radius[float]: ° https://sassy.as.arizona.edu/sassy/glade_q3c?cone=202.2,47.2,5.0
?dec__gte=dec declination (Dec) ≥ dec dec[float]: J2k° https://sassy.as.arizona.edu/sassy/glade?dec__gte=-90.0
https://sassy.as.arizona.edu/sassy/glade_q3c?dec__gte=-90.0
?dec__lte=dec declination (Dec) ≤ dec dec[float]: J2k° https://sassy.as.arizona.edu/sassy/glade?dec__lte=90.0
https://sassy.as.arizona.edu/sassy/glade_q3c?dec__lte=90.0
?dist__gte=dist the distance to the nearest source ≥ dist dist[float]: Mpc https://sassy.as.arizona.edu/sassy/glade?dist__gte=5.0
https://sassy.as.arizona.edu/sassy/glade_q3c?dist__gte=5.0
?dist__lte=dist the distance to the nearest source ≤ dist dist[float]: Mpc https://sassy.as.arizona.edu/sassy/glade?dist__lte=5.0
https://sassy.as.arizona.edu/sassy/glade_q3c?dist__lte=5.0
?ellipse=ra,dec,majaxis,ratio,posang ellipse search by co-ordinate ra[float]: J2k°, dec[float]: J2k°, majaxis[float]: °, ratio[float]: no units, posang[float]: ° https://sassy.as.arizona.edu/sassy/glade_q3c?ellipse=202.2,47.2,5.0,0.5,25.0
?flag1=code given flag code code[char]: {Q,C,G} https://sassy.as.arizona.edu/sassy/glade?flag1=Q Q: source is from the SDSS-DR12 QSO catalog
C: source is a globular cluste
G: source is from another catalog and not identified as a globular cluster.

https://sassy.as.arizona.edu/sassy/glade_q3c?flag1=Q Q: source is from the SDSS-DR12 QSO catalog
C: source is a globular cluste
G: source is from another catalog and not identified as a globular cluster.
?flag2__gte=value object flag2 ≥ value value[int]: {0,1,2,3} https://sassy.as.arizona.edu/sassy/glade?flag2__gte=0 0: galaxy had neither measured distance nor measured redshift value
1: galaxy had measured redshift value, from which we have calculated distance using the following cosmological parameters: H_0=70/km/s/Mpc, Omega_M=0.27 and Omega_Lambda=0.73
2: galaxy had measured distance value from which we have calculated redshift using the following cosmological parameters: H_0=70/km/s/Mp, Omega_M=0.27 and Omega_Lambda=0.73
3: measured photometric redshift of the galaxy has been changed to spectroscopic redshift, from which we have calculated distance using the following cosmological parameters: H_0=70/km/s/Mpc, Omega_M=0.27 and Omega_Lambda=0.73.

https://sassy.as.arizona.edu/sassy/glade_q3c?flag2__gte=0 0: galaxy had neither measured distance nor measured redshift value
1: galaxy had measured redshift value, from which we have calculated distance using the following cosmological parameters: H_0=70/km/s/Mpc, Omega_M=0.27 and Omega_Lambda=0.73
2: galaxy had measured distance value from which we have calculated redshift using the following cosmological parameters: H_0=70/km/s/Mp, Omega_M=0.27 and Omega_Lambda=0.73
3: measured photometric redshift of the galaxy has been changed to spectroscopic redshift, from which we have calculated distance using the following cosmological parameters: H_0=70/km/s/Mpc, Omega_M=0.27 and Omega_Lambda=0.73.
?flag2__lte=value object flag2 ≤ value value[int]: {0,1,2,3} https://sassy.as.arizona.edu/sassy/glade?flag2__lte=3 0: galaxy had neither measured distance nor measured redshift value
1: galaxy had measured redshift value, from which we have calculated distance using the following cosmological parameters: H_0=70/km/s/Mpc, Omega_M=0.27 and Omega_Lambda=0.73
2: galaxy had measured distance value from which we have calculated redshift using the following cosmological parameters: H_0=70/km/s/Mp, Omega_M=0.27 and Omega_Lambda=0.73
3: measured photometric redshift of the galaxy has been changed to spectroscopic redshift, from which we have calculated distance using the following cosmological parameters: H_0=70/km/s/Mpc, Omega_M=0.27 and Omega_Lambda=0.73.

https://sassy.as.arizona.edu/sassy/glade_q3c?flag2__lte=3 0: galaxy had neither measured distance nor measured redshift value
1: galaxy had measured redshift value, from which we have calculated distance using the following cosmological parameters: H_0=70/km/s/Mpc, Omega_M=0.27 and Omega_Lambda=0.73
2: galaxy had measured distance value from which we have calculated redshift using the following cosmological parameters: H_0=70/km/s/Mp, Omega_M=0.27 and Omega_Lambda=0.73
3: measured photometric redshift of the galaxy has been changed to spectroscopic redshift, from which we have calculated distance using the following cosmological parameters: H_0=70/km/s/Mpc, Omega_M=0.27 and Omega_Lambda=0.73.
?flag3__gte=value object flag3 ≥ value value[int]: {0,1} https://sassy.as.arizona.edu/sassy/glade?flag3__gte=0 0: velocity field correction has not been applied to the object
1: we have subtracted the radial velocity of the object.

?flag3__lte=value object flag3 ≤ value value[int]: {0,1} https://sassy.as.arizona.edu/sassy/glade?flag3__lte=1 0: velocity field correction has not been applied to the object
1: we have subtracted the radial velocity of the object.

https://sassy.as.arizona.edu/sassy/glade_q3c?flag3__lte=1 0: velocity field correction has not been applied to the object
1: we have subtracted the radial velocity of the object.
?gwgc_name=name search by GWGC name name[string]: GWGC name https://sassy.as.arizona.edu/sassy/glade?gwgc_name=NGC0253
https://sassy.as.arizona.edu/sassy/glade_q3c?gwgc_name=NGC0253
?h_err__gte=herr ±H magnitude ≥ herr herr[float]: ±magnitude https://sassy.as.arizona.edu/sassy/glade?h_err__gte=0.05
https://sassy.as.arizona.edu/sassy/glade_q3c?h_err__gte=0.05
?h_err__lte=herr ±H magnitude ≤ herr herr[float]: ±magnitude https://sassy.as.arizona.edu/sassy/glade?h_err__lte=0.05
https://sassy.as.arizona.edu/sassy/glade_q3c?h_err__lte=0.05
?h_mag__gte=hmag H magnitude ≥ hmag hmag[float]: magnitude https://sassy.as.arizona.edu/sassy/glade?h_mag__gte=2.5
https://sassy.as.arizona.edu/sassy/glade_q3c?h_mag__gte=2.5
?h_mag__lte=hmag H magnitide ≤ hmag hmag[float]: magnitude https://sassy.as.arizona.edu/sassy/glade?h_mag__lte=2.5
https://sassy.as.arizona.edu/sassy/glade_q3c?h_mag__lte=2.5
?hyperleda_name=name search by HyperLEDA name name[string]: PGC name https://sassy.as.arizona.edu/sassy/glade?hyperleda_name=NGC0253
https://sassy.as.arizona.edu/sassy/glade_q3c?hyperleda_name=NGC0253
?id=id database id = id id[int]: record number https://sassy.as.arizona.edu/sassy/glade?id=20
https://sassy.as.arizona.edu/sassy/glade_q3c?id=20
?id__gte=id database id ≥ id id[int]: record number https://sassy.as.arizona.edu/sassy/glade?id__gte=20
https://sassy.as.arizona.edu/sassy/glade_q3c?id__gte=20
?id__lte=id database id ≤ id id[int]: record number https://sassy.as.arizona.edu/sassy/glade?id__lte=20
https://sassy.as.arizona.edu/sassy/glade_q3c?id__lte=20
?j_err__gte=jerr ±J magnitude ≥ jerr jerr[float]: ° https://sassy.as.arizona.edu/sassy/glade?j_err__gte=0.05
https://sassy.as.arizona.edu/sassy/glade_q3c?j_err__gte=0.05
?j_err__lte=jerr ±J magnitude ≤ jerr jerr[float]: ° https://sassy.as.arizona.edu/sassy/glade?j_err__lte=0.05
https://sassy.as.arizona.edu/sassy/glade_q3c?j_err__lte=0.05
?j_mag__gte=jmag J magnitude ≥ jmag jmag[float]: ° https://sassy.as.arizona.edu/sassy/glade?j_mag__gte=2.5
https://sassy.as.arizona.edu/sassy/glade_q3c?j_mag__gte=2.5
?j_mag__lte=jmag J magnitide ≤ jmag jmag[float]: ° https://sassy.as.arizona.edu/sassy/glade?j_mag__lte=2.5
https://sassy.as.arizona.edu/sassy/glade_q3c?j_mag__lte=2.5
?k_err__gte=kerr ±K magnitude ≥ kerr kerr[float]: ° https://sassy.as.arizona.edu/sassy/glade?k_err__gte=0.05
https://sassy.as.arizona.edu/sassy/glade_q3c?k_err__gte=0.05
?k_err__lte=kerr ±K magnitude ≤ kerr kerr[float]: ° https://sassy.as.arizona.edu/sassy/glade?k_err__lte=0.05
https://sassy.as.arizona.edu/sassy/glade_q3c?k_err__lte=0.05
?k_mag__gte=kmag K magnitude ≥ kmag kmag[float]: ° https://sassy.as.arizona.edu/sassy/glade?k_mag__gte=2.5
https://sassy.as.arizona.edu/sassy/glade_q3c?k_mag__gte=2.5
?k_mag__lte=kmag K magnitide ≤ kmag kmag[float]: ° https://sassy.as.arizona.edu/sassy/glade?k_mag__lte=2.5
https://sassy.as.arizona.edu/sassy/glade_q3c?k_mag__lte=2.5
?mass_name=name search by 2MASS name name[string]: 2MASS name https://sassy.as.arizona.edu/sassy/glade?mass_name=00473313-2517196
https://sassy.as.arizona.edu/sassy/glade_q3c?mass_name=00473313-2517196
?pgc=pgc PGC code = pgc pgc[int]: PGC code https://sassy.as.arizona.edu/sassy/glade?pgc=2789
https://sassy.as.arizona.edu/sassy/glade_q3c?pgc=2789
?pgc__gte=pgc PGC code ≥ pgc pgc[int]: PGC code https://sassy.as.arizona.edu/sassy/glade?pgc__gte=2789
https://sassy.as.arizona.edu/sassy/glade_q3c?pgc__gte=2789
?pgc__lte=pgc PGC code ≤ pgc pgc[int]: PGC code https://sassy.as.arizona.edu/sassy/glade?pgc__lte=2789
https://sassy.as.arizona.edu/sassy/glade_q3c?pgc__lte=2789
?ra__gte=ra right ascension (RA) ≥ ra ra[float]: J2k° https://sassy.as.arizona.edu/sassy/glade?ra__gte=0.0
https://sassy.as.arizona.edu/sassy/glade_q3c?ra__gte=0.0
?ra__lte=ra right ascension (RA) ≤ ra ra[float]: J2k° https://sassy.as.arizona.edu/sassy/glade?ra__lte=360.0
https://sassy.as.arizona.edu/sassy/glade_q3c?ra__lte=360.0
?sdss_name=name search by SDSS name name[string]: SDSS name https://sassy.as.arizona.edu/sassy/glade?sdss_name=235953.93
https://sassy.as.arizona.edu/sassy/glade_q3c?sdss_name=235953.93
?z__gte=z redshift ≥ z z[float]: redshift https://sassy.as.arizona.edu/sassy/glade?z__gte=0.0
https://sassy.as.arizona.edu/sassy/glade_q3c?z__gte=0.0
?z__lte=z redshift ≤ z z[float]: redshift https://sassy.as.arizona.edu/sassy/glade?z__lte=1.0
https://sassy.as.arizona.edu/sassy/glade_q3c?z__lte=1.0

API Return ObsReq with ... ArgName[Type]: Description Example(s)
?astrocone=name,radius cone search by name name[string]: name, radius[float]: ° https://sassy.as.arizona.edu/sassy/gwgc_q3c?astrocone=m51,25.0 Object lookup via astropy.SkyCoord.from_name().
?a__gte=a Major ∅ ≥ a a[float]: ′ https://sassy.as.arizona.edu/sassy/gwgc?a__gte=0.0
https://sassy.as.arizona.edu/sassy/gwgc_q3c?a__gte=0.0
?a__lte=a Major ∅ ≤ a a[float]: ′ https://sassy.as.arizona.edu/sassy/gwgc?a__lte=2.5
https://sassy.as.arizona.edu/sassy/gwgc_q3c?a__lte=2.5
?abs_bmag__gte=babs |B| ≥ babs babs[float]: magnitude https://sassy.as.arizona.edu/sassy/gwgc?abs_bmag__gte=-10.0
https://sassy.as.arizona.edu/sassy/gwgc_q3c?abs_bmag__gte=-10.0
?abs_bmag__lte=babs |B| ≤ babs babs[float]: magnitude https://sassy.as.arizona.edu/sassy/gwgc?abs_bmag__lte=2.5
https://sassy.as.arizona.edu/sassy/gwgc_q3c?abs_bmag__lte=2.5
?app_bmag__gte=bapp B (apparent) ≥ bapp bapp[float]: magnitude https://sassy.as.arizona.edu/sassy/gwgc?app_bmag__gte=12.5
https://sassy.as.arizona.edu/sassy/gwgc_q3c?app_bmag__gte=12.5
?app_bmag__lte=bapp B (apparent) ≤ bapp bapp[float]: magnitude https://sassy.as.arizona.edu/sassy/gwgc?app_bmag__lte=12.5
https://sassy.as.arizona.edu/sassy/gwgc_q3c?app_bmag__lte=12.5
?b__gte=b Minor ∅ ≥ b b[float]: ′ https://sassy.as.arizona.edu/sassy/gwgc?b__gte=0.0
https://sassy.as.arizona.edu/sassy/gwgc_q3c?b__gte=0.0
?b__lte=b Minor ∅ ≤ b b[float]: ′ https://sassy.as.arizona.edu/sassy/gwgc?b__lte=2.0
https://sassy.as.arizona.edu/sassy/gwgc_q3c?b__lte=2.0
?b_div_a__gte=value Axis ratio ≥ value value[float]: 0.0–1.0 https://sassy.as.arizona.edu/sassy/gwgc?b_div_a__gte=0.0
https://sassy.as.arizona.edu/sassy/gwgc_q3c?b_div_a__gte=0.0
?b_div_a__lte=value Axis ratio ≤ value value[float]: 0.0–1.0 https://sassy.as.arizona.edu/sassy/gwgc?b_div_a__lte=1.0
https://sassy.as.arizona.edu/sassy/gwgc_q3c?b_div_a__lte=1.0
?cone=ra,dec,radius cone search by co-ordinate ra[float]: J2k°, dec[float]: J2k°, radius[float]: ° https://sassy.as.arizona.edu/sassy/gwgc_q3c?cone=202.2,47.2,5.0
?dec__gte=dec declination (Dec) ≥ dec dec[float]: J2k° https://sassy.as.arizona.edu/sassy/gwgc?dec__gte=-90.0
https://sassy.as.arizona.edu/sassy/gwgc_q3c?dec__gte=-90.0
?dec__lte=dec declination (Dec) ≤ dec dec[float]: J2k° https://sassy.as.arizona.edu/sassy/gwgc?dec__lte=90.0
https://sassy.as.arizona.edu/sassy/gwgc_q3c?dec__lte=90.0
?dist__gte=dist the distance to the nearest source ≥ dist dist[float]: Mpc https://sassy.as.arizona.edu/sassy/gwgc?dist__gte=5.0
https://sassy.as.arizona.edu/sassy/gwgc_q3c?dist__gte=5.0
?dist__lte=dist the distance to the nearest source ≤ dist dist[float]: Mpc https://sassy.as.arizona.edu/sassy/gwgc?dist__lte=10.0
https://sassy.as.arizona.edu/sassy/gwgc_q3c?dist__lte=10.0
?e_a__gte=a ±Major ∅ ≥ a a[float]: ′ https://sassy.as.arizona.edu/sassy/gwgc?e_a__gte=0.05
https://sassy.as.arizona.edu/sassy/gwgc_q3c?e_a__gte=0.05
?e_a__lte=a ±Major ∅ ≤ a a[float]: ′ https://sassy.as.arizona.edu/sassy/gwgc?e_a__lte=0.05
https://sassy.as.arizona.edu/sassy/gwgc_q3c?e_a__lte=0.05
?e_abs_bmag__gte=babs ±|B| mag ≥ babs babs[float]: magnitude https://sassy.as.arizona.edu/sassy/gwgc?e_abs_bmag__gte=0.05
https://sassy.as.arizona.edu/sassy/gwgc_q3c?e_abs_bmag__gte=0.05
?e_abs_bmag__lte=babs ±|B| mag ≤ babs babs[float]: magnitude https://sassy.as.arizona.edu/sassy/gwgc?e_abs_bmag__lte=0.25
https://sassy.as.arizona.edu/sassy/gwgc_q3c?e_abs_bmag__lte=0.25
?e_app_bmag__gte=bapp ±B (apparent) ≥ bapp bapp[float]: magnitude https://sassy.as.arizona.edu/sassy/gwgc?e_app_bmag__gte=0.25
https://sassy.as.arizona.edu/sassy/gwgc_q3c?e_app_bmag__gte=0.25
?e_app_bmag__lte=bapp ±B (apparent) ≤ bapp bapp[float]: magnitude https://sassy.as.arizona.edu/sassy/gwgc?e_app_bmag__lte=20.50
https://sassy.as.arizona.edu/sassy/gwgc_q3c?e_app_bmag__lte=20.50
?e_b__gte=b ±Minor ∅ ≥ b b[float]: ′ https://sassy.as.arizona.edu/sassy/gwgc?e_b__gte=0.50
https://sassy.as.arizona.edu/sassy/gwgc_q3c?e_b__gte=0.50
?e_b__lte=b ±Minor ∅ ≤ b b[float]: ′ https://sassy.as.arizona.edu/sassy/gwgc?e_b__lte=0.50
https://sassy.as.arizona.edu/sassy/gwgc_q3c?e_b__lte=0.50
?e_b_div_a__gte=value ±Axis ratio ≥ value value[float]: 0.0–1.0 https://sassy.as.arizona.edu/sassy/gwgc?e_b_div_a__gte=0.0
https://sassy.as.arizona.edu/sassy/gwgc_q3c?e_b_div_a__gte=0.0
?e_b_div_a__lte=value ±Axis ratio ≤ value value[float]: 0.0–1.0 https://sassy.as.arizona.edu/sassy/gwgc?e_b_div_a__lte=1.0
https://sassy.as.arizona.edu/sassy/gwgc_q3c?e_b_div_a__lte=1.0
?ellipse=ra,dec,majaxis,ratio,posang ellipse search by co-ordinate ra[float]: J2k°, dec[float]: J2k°, majaxis[float]: °, ratio[float]: no units, posang[float]: ° https://sassy.as.arizona.edu/sassy/gwgc_q3c?ellipse=202.2,47.2,5.0,0.5,25.0
?id=id database id = id id[int]: record number https://sassy.as.arizona.edu/sassy/gwgc?id=20
https://sassy.as.arizona.edu/sassy/gwgc_q3c?id=20
?name=name search by name name[string]: GWGC name https://sassy.as.arizona.edu/sassy/gwgc?name=NGC0253
https://sassy.as.arizona.edu/sassy/gwgc_q3c?name=NGC0253
?pa__gte=angle position angle ≥ angle angle[int]: ° https://sassy.as.arizona.edu/sassy/gwgc?pa__gte=75.0
https://sassy.as.arizona.edu/sassy/gwgc_q3c?pa__gte=75.0
?pa__lte=angle position angle ≤ angle angle[int]: ° https://sassy.as.arizona.edu/sassy/gwgc?pa__lte=25.0
https://sassy.as.arizona.edu/sassy/gwgc_q3c?pa__lte=25.0
?pgc=pgc PGC code = pgc pgc[int]: PGC code https://sassy.as.arizona.edu/sassy/gwgc?pgc=4494
https://sassy.as.arizona.edu/sassy/gwgc_q3c?pgc=4494
?ra__gte=ra right ascension (RA) ≥ ra ra[float]: J2k° https://sassy.as.arizona.edu/sassy/gwgc?ra__gte=0.0
https://sassy.as.arizona.edu/sassy/gwgc_q3c?ra__gte=0.0
?ra__lte=ra right ascension (RA) ≤ ra ra[float]: J2k° https://sassy.as.arizona.edu/sassy/gwgc?ra__lte=360.0
https://sassy.as.arizona.edu/sassy/gwgc_q3c?ra__lte=360.0
?tt__gte=code TT (morphology) code ≥ code code[float]: code https://sassy.as.arizona.edu/sassy/gwgc?z__gte=-10.0
https://sassy.as.arizona.edu/sassy/gwgc_q3c?z__gte=-10.0
?tt__lte=code TT (morphology) code ≤ code code[float]: code https://sassy.as.arizona.edu/sassy/gwgc?tt__lte=10.0
https://sassy.as.arizona.edu/sassy/gwgc_q3c?tt__lte=10.0

API Return LigoRecord with ... ArgName[Type]: Description Example(s)
?astrocone=name,radius cone search by name name[string]: name, radius[float]: ° https://sassy.as.arizona.edu/sassy/ligo_q3c?astrocone=m51,5.0 Object lookup via astropy.SkyCoord.from_name().
?before=flag Transient dicovered before? flag[boolean]: T|F https://sassy.as.arizona.edu/sassy/ligo?before=True
https://sassy.as.arizona.edu/sassy/ligo_q3c?before=True
?cone=ra,dec,radius cone search by co-ordinate ra[float]: J2k°, dec[float]: J2k°, radius[float]: ° https://sassy.as.arizona.edu/sassy/ligo_q3c?cone=202.2,47.2,5.0
?dec__gte=dec declination (Dec) ≥ dec dec[float]: J2k° https://sassy.as.arizona.edu/sassy/ligo?dec__gte=-90.0
https://sassy.as.arizona.edu/sassy/ligo_q3c?dec__gte=-90.0
?dec__lte=dec declination (Dec) ≤ dec dec[float]: J2k° https://sassy.as.arizona.edu/sassy/ligo?dec__lte=90.0
https://sassy.as.arizona.edu/sassy/ligo_q3c?dec__lte=90.0
?discovery_date=date discovery date ≥ date date[string]: discovery date https://sassy.as.arizona.edu/sassy/ligo?discovery_date=2019-06-02
https://sassy.as.arizona.edu/sassy/ligo_q3c?discovery_date=2019-06-02
?discovery_mag__gte=mag Magnitude ≥ mag mag[float]: magnitude https://sassy.as.arizona.edu/sassy/ligo?discovery_mag__gte=-10.0
https://sassy.as.arizona.edu/sassy/ligo_q3c?discovery_mag__gte=-10.0
?discovery_mag__lte=mag Magnitude ≤ mag mag[float]: magnitude https://sassy.as.arizona.edu/sassy/ligo?discovery_mag__lte=2.5
https://sassy.as.arizona.edu/sassy/ligo_q3c?discovery_mag__lte=2.5
?ellipse=ra,dec,majaxis,ratio,posang ellipse search by co-ordinate ra[float]: J2k°, dec[float]: J2k°, majaxis[float]: °, ratio[float]: no units, posang[float]: ° https://sassy.as.arizona.edu/sassy/ligo_q3c?ellipse=202.2,47.2,5.0,0.5,25.0
?filter_name=filter filter name like filter filter[string]: filter name https://sassy.as.arizona.edu/sassy/ligo?filter_name=Gaia-G
https://sassy.as.arizona.edu/sassy/ligo_q3c?filter_name=Gaia-G
?gw_aka=aka GW alternate name = aka aka[string]: GW alternate name https://sassy.as.arizona.edu/sassy/ligo?gw_aka=GW20190602_175927
https://sassy.as.arizona.edu/sassy/ligo_q3c?gw_aka=GW20190602_175927
?gw_date=date GW date ≥ date date[string]: GW date https://sassy.as.arizona.edu/sassy/ligo?gw_date=2019-06-02
https://sassy.as.arizona.edu/sassy/ligo_q3c?gw_date=2019-06-02
?gw_event=event GW event name like event event[string]: GW event name https://sassy.as.arizona.edu/sassy/ligo?gw_event=G334993
https://sassy.as.arizona.edu/sassy/ligo_q3c?gw_event=G334993
?id=id database id = id id[int]: record number https://sassy.as.arizona.edu/sassy/ligo?id=20
https://sassy.as.arizona.edu/sassy/ligo_q3c?id=20
?id__gte=id database id ≥ id id[int]: id https://sassy.as.arizona.edu/sassy/ligo?id__gte=777
https://sassy.as.arizona.edu/sassy/ligo_q3c?id__gte=777
?id__lte=id database id ≤ id id[int]: id https://sassy.as.arizona.edu/sassy/ligo?id__lte=777
https://sassy.as.arizona.edu/sassy/ligo_q3c?id__lte=777
?name=name name like name name[string]: name https://sassy.as.arizona.edu/sassy/ligo?name=G337426
https://sassy.as.arizona.edu/sassy/ligo_q3c?name=G337426
?name_prefix=prefix name prefix like prefix prefix[string]: TNS prefix (AT|SN) https://sassy.as.arizona.edu/sassy/ligo?name_prefix=AT
https://sassy.as.arizona.edu/sassy/ligo_q3c?name_prefix=AT
?probability__gte=p P(event) ≥ p p[float]: probability https://sassy.as.arizona.edu/sassy/ligo?probability__gte=0.0
https://sassy.as.arizona.edu/sassy/ligo_q3c?probability__gte=0.0
?probability__lte=p P(event) ≤ p p[float]: probability https://sassy.as.arizona.edu/sassy/ligo?probability__lte=1.0
https://sassy.as.arizona.edu/sassy/ligo_q3c?probability__lte=1.0
?ra__gte=ra right ascension (RA) ≥ ra ra[float]: J2k° https://sassy.as.arizona.edu/sassy/ligo?ra__gte=0.0
https://sassy.as.arizona.edu/sassy/ligo_q3c?ra__gte=0.0
?ra__lte=ra right ascension (RA) ≤ ra ra[float]: J2k° https://sassy.as.arizona.edu/sassy/ligo?ra__lte=360.0
https://sassy.as.arizona.edu/sassy/ligo_q3c?ra__lte=360.0
?sigma__gte=sigma σ ≥ sigma sigma[float]: sigma https://sassy.as.arizona.edu/sassy/ligo?sigma__gte=0.05
https://sassy.as.arizona.edu/sassy/ligo_q3c?sigma__gte=0.05
?sigma__lte=sigma σ ≤ sigma sigma[float]: sigma https://sassy.as.arizona.edu/sassy/ligo?sigma__lte=0.25
https://sassy.as.arizona.edu/sassy/ligo_q3c?sigma__lte=0.25
?source_group=group source group like group group[string]: Source group https://sassy.as.arizona.edu/sassy/ligo?source_group=ZTF
https://sassy.as.arizona.edu/sassy/ligo_q3c?source_group=ZTF
?transient_type=type transient type like type type[string]: Transient type https://sassy.as.arizona.edu/sassy/ligo?transient_type=SN Ia
https://sassy.as.arizona.edu/sassy/ligo_q3c?transient_type=SN Ia

API Return TnsRecord with ... ArgName[Type]: Description Example(s)
?astrocone=name,radius cone search by name name[string]: name, radius[float]: ° https://sassy.as.arizona.edu/sassy/tns_q3c?astrocone=m51,5.0 Object lookup via astropy.SkyCoord.from_name().
?alias=alias Alternate Name alias[string]: name https://sassy.as.arizona.edu/sassy/tns?alias=ATLAS19otu
https://sassy.as.arizona.edu/sassy/tns_q3c?alias=ATLAS19otu
?cone=ra,dec,radius cone search by co-ordinate ra[float]: J2k°, dec[float]: J2k°, radius[float]: ° https://sassy.as.arizona.edu/sassy/tns_q3c?cone=202.2,47.2,5.0
?dec__gte=dec declination (Dec) ≥ dec dec[float]: J2k° https://sassy.as.arizona.edu/sassy/tns?dec__gte=-90.0
https://sassy.as.arizona.edu/sassy/tns_q3c?dec__gte=-90.0
?dec__lte=dec declination (Dec) ≤ dec dec[float]: J2k° https://sassy.as.arizona.edu/sassy/tns?dec__lte=90.0
https://sassy.as.arizona.edu/sassy/tns_q3c?dec__lte=90.0
?discovery_date=date discovery date > date date[string]: discovery date https://sassy.as.arizona.edu/sassy/tns?discovery_date=2019-06-02
https://sassy.as.arizona.edu/sassy/tns_q3c?discovery_date=2019-06-02
?discovery_instrument=ins discovery instrument like ins ins[string]: discovery instrument https://sassy.as.arizona.edu/sassy/tns?discovery_instrument=ATLAS
https://sassy.as.arizona.edu/sassy/tns_q3c?discovery_instrument=ATLAS
?discovery_mag__gte=mag Magnitude ≥ mag mag[float]: magnitude https://sassy.as.arizona.edu/sassy/tns?discovery_mag__gte=-10.0
https://sassy.as.arizona.edu/sassy/tns_q3c?discovery_mag__gte=-10.0
?discovery_mag__lte=mag Magnitude ≤ mag mag[float]: magnitude https://sassy.as.arizona.edu/sassy/tns?discovery_mag__lte=22.5
https://sassy.as.arizona.edu/sassy/tns_q3c?discovery_mag__lte=22.5
?ellipse=ra,dec,majaxis,ratio,posang ellipse search by co-ordinate ra[float]: J2k°, dec[float]: J2k°, majaxis[float]: °, ratio[float]: no units, posang[float]: ° https://sassy.as.arizona.edu/sassy/tns_q3c?ellipse=202.2,47.2,5.0,0.5,25.0
?filter_name=filter filter name like filter filter[string]: filter name https://sassy.as.arizona.edu/sassy/tns?filter_name=G-Gaia
https://sassy.as.arizona.edu/sassy/tns_q3c?filter_name=G-Gaia
?host=host host object name like host host[string]: host object name https://sassy.as.arizona.edu/sassy/tns?host=Unknown
https://sassy.as.arizona.edu/sassy/tns_q3c?host=Unknown
?host_z__gte=z P(event) ≥ z z[float]: redshift https://sassy.as.arizona.edu/sassy/tns?host_z__gte=0.0
https://sassy.as.arizona.edu/sassy/tns_q3c?host_z__gte=0.0
?host_z__lte=z P(event) ≤ z z[float]: redshift https://sassy.as.arizona.edu/sassy/tns?host_z__lte=1.0
https://sassy.as.arizona.edu/sassy/tns_q3c?host_z__lte=1.0
?id=id database id = id id[int]: record number https://sassy.as.arizona.edu/sassy/tns?id=20
https://sassy.as.arizona.edu/sassy/tns_q3c?id=20
?id__gte=id database id ≥ id id[int]: record number https://sassy.as.arizona.edu/sassy/tns?id__gte=777
https://sassy.as.arizona.edu/sassy/tns_q3c?id__gte=777
?id__lte=id database id ≤ id id[int]: record number https://sassy.as.arizona.edu/sassy/tns?id__lte=777
https://sassy.as.arizona.edu/sassy/tns_q3c?id__lte=777
?redshift__gte=z P(event) ≥ z z[float]: redshift https://sassy.as.arizona.edu/sassy/tns?redshift__gte=0.0
https://sassy.as.arizona.edu/sassy/tns_q3c?redshift__gte=0.0
?redshift__lte=z P(event) ≤ z z[float]: redshift https://sassy.as.arizona.edu/sassy/tns?redshift__lte=1.0
https://sassy.as.arizona.edu/sassy/tns_q3c?redshift__lte=1.0
?ra__gte=ra right ascension (RA) ≥ ra ra[float]: J2k° https://sassy.as.arizona.edu/sassy/tns?ra__gte=0.0
https://sassy.as.arizona.edu/sassy/tns_q3c?ra__gte=0.0
?ra__lte=ra right ascension (RA) ≤ ra ra[float]: J2k° https://sassy.as.arizona.edu/sassy/tns?ra__lte=360.0
https://sassy.as.arizona.edu/sassy/tns_q3c?ra__lte=360.0
?source_group=group source group like group group[string]: source group https://sassy.as.arizona.edu/sassy/tns?source_group=ZTF
https://sassy.as.arizona.edu/sassy/tns_q3c?source_group=ZTF
?tns_class=type TNS class like type type[string]: transient type https://sassy.as.arizona.edu/sassy/tns?tns_class='SN Ia'
https://sassy.as.arizona.edu/sassy/tns_q3c?tns_class='SN Ia'
?tns_id=id TNS tns_id = id id[int]: id number https://sassy.as.arizona.edu/sassy/tns?tns_id=777
https://sassy.as.arizona.edu/sassy/tns_q3c?tns_id=777
?tns_id__gte=id TNS id ≥ id id[int]: id number https://sassy.as.arizona.edu/sassy/tns?tns_id__gte=777
https://sassy.as.arizona.edu/sassy/tns_q3c?tns_id__gte=777
?tns_id__lte=id TNS id ≤ id id[int]: id number https://sassy.as.arizona.edu/sassy/tns?tns_id__lte=777
https://sassy.as.arizona.edu/sassy/tns_q3c?tns_id__lte=777
?tns_name=name TNS name like name name[string]: name https://sassy.as.arizona.edu/sassy/tns?tns_name=2019kra
https://sassy.as.arizona.edu/sassy/tns_q3c?tns_name=2019kra

API Return ObsReq with ... ArgName[Type]: Description Example(s)
?astrocone=name,radius cone search by name name[string]: name, radius[float]: pixels https://sassy.as.arizona.edu/sassy/ztf?astrocone=m51,0.01 Object lookup via astropy.SkyCoord.from_name().
?b__gte=b galactic latitude (b) ≥ b b[float]: ° https://sassy.as.arizona.edu/sassy/ztf?b__gte=20.50
?b__lte=b galactic latitude (b) ≤ b b[float]: ° https://sassy.as.arizona.edu/sassy/ztf?b__lte=20.50
?candid=id given id id[long]: candidate identifier https://sassy.as.arizona.edu/sassy/ztf?candid=516168124115010000
?clastar__gte=cscore star/galaxy score ≥ cscore cscore[float]: CLASS_STAR classifier https://sassy.as.arizona.edu/sassy/ztf?clastar__gte=0.4 Deprecated: value is SExtractor score measured from the difference image.
CLASS_STAR has been replaced by SPREAD_MODEL (not implemented).
?clastar__lte=cscore star/galaxy score ≤ cscore cscore[float]: CLASS_STAR classifier https://sassy.as.arizona.edu/sassy/ztf?clastar__gte=0.4 Deprecated: value is SExtractor score measured from the difference image.
CLASS_STAR has been replaced by SPREAD_MODEL (not implemented).
?cone=ra,dec,radius cone search ra[float]: J2k°, dec[float]: J2k°, radius[float]: pixels https://sassy.as.arizona.edu/sassy/ztf?cone=202.47,47.20,0.01
?dec__gte=dec declination (Dec) ≥ dec dec[float]: J2k° https://sassy.as.arizona.edu/sassy/ztf?dec__gte=-90.0
?dec__lte=dec declination (Dec) ≤ dec dec[float]: J2k° https://sassy.as.arizona.edu/sassy/ztf?dec__lte=90.0
?deltamaglatest__gte=mag magnitude difference ≥ mag mag[float]: abs(magnitude) https://sassy.as.arizona.edu/sassy/ztf?deltamaglatest__gte=1.0 Derived magpsf[this alert] - magpsf[last alert] at this location from image of same filter.
?deltamaglatest__lte=mag magnitude difference ≤ mag mag[float]: abs(magnitude) https://sassy.as.arizona.edu/sassy/ztf?deltamaglatest__lte=1.0 Derived magpsf[this alert] - magpsf[last alert] at this location from image of same filter.
?deltamagref__lte=mag magnitude difference in reference image ≥ mag mag[float]: magnitude https://sassy.as.arizona.edu/sassy/ztf?deltamagref__gte=1.0 Derived if distnr≲2 pixels, deltamagref = (magnr - magpsf).
?deltamagref__gte=mag magnitude difference in reference image ≤ mag mag[float]: magnitude https://sassy.as.arizona.edu/sassy/ztf?deltamagref__lte=1.0 Derived if distnr≲2 pixels, deltamagref = (magnr - magpsf).
?distnr__gte=dist the distance to the nearest source ≥ dist dist[float]: pixels https://sassy.as.arizona.edu/sassy/ztf?distnr__gte=1.0 Distance to nearest source in reference image PSF-catalog within 30 arcsec
?distnr__lte=dist the distance to the nearest source ≤ dist dist[float]: pixels https://sassy.as.arizona.edu/sassy/ztf?distnr__lte=1.0 Distance to nearest source in reference image PSF-catalog within 30 arcsec
?filter=fstr given filter fstr[char]: g, r, i https://sassy.as.arizona.edu/sassy/ztf?filter=g
?fwhm__gte=fwhm FWHM ≥ fwhm fwhm[float]: pixels https://sassy.as.arizona.edu/sassy/ztf?fwhm__gte=1.123 FWHM is measured from the difference image.
?fwhm__lte=fwhm FWHM ≤ fwhm fwhm[float]: pixels https://sassy.as.arizona.edu/sassy/ztf?fwhm__lte=1.123 FWHM is measured from the difference image.
?jd__gte=jd Julian day ≥ jd jd[float]: valid JD https://sassy.as.arizona.edu/sassy/ztf?jd__gte=2458302.6906713
?jd__lte=jd Julian day ≤ jd jd[float]: valid JD https://sassy.as.arizona.edu/sassy/ztf?jd__lte=2458302.6906713
?l__gte=l galactic longitude (l) ≥ l l[float]: ° https://sassy.as.arizona.edu/sassy/ztf?l__gte=20.50
?l__lte=l galactic longitude (l) ≤ l l[float]: ° https://sassy.as.arizona.edu/sassy/ztf?l__lte=20.50
?magap__gte=mag aperture magnitude ≥ mag mag[float]: magnitude https://sassy.as.arizona.edu/sassy/ztf?magap__gte=12.5 Magnitude using 8 pixel diameter aperture measured from difference image.
?magap__lte=mag aperture magnitude ≤ mag mag[float]: magnitude https://sassy.as.arizona.edu/sassy/ztf?magap__lte=12.5 Magnitude using 8 pixel diameter aperture measured from difference image.
?magpsf__gte=mag brightness ≥ mag mag[float]: magnitude https://sassy.as.arizona.edu/sassy/ztf?magpsf__gte=20.0 Magnitude from PSF-fit photometry measured from difference image.
?magpsf__lte=mag brightness ≤ mag mag[float]: magnitude https://sassy.as.arizona.edu/sassy/ztf?magpsf__lte=20.0 Magnitude from PSF-fit photometry measured from difference image.
?objectcone=name,radius cone search by name name[string]: catalogue name, radius[float]: pixels https://sassy.as.arizona.edu/sassy/ztf?objectcone=m51,0.01 Deprecated: Object lookup via https://simbad2k.lco.global.
?objectId=id given objectId id[None]: unique object identifier https://sassy.as.arizona.edu/sassy/ztf?objectId=ZTF17aacnwnb
?objectidps=idps given PS1 object identifier idps[None]: PS-1 catalog identifier https://sassy.as.arizona.edu/sassy/ztf?objectidps=123632692811945346
?ra__gte=ra right ascension (RA) ≥ ra ra[float]: J2k° https://sassy.as.arizona.edu/sassy/ztf?ra__gte=0.0
?ra__lte=ra right ascension (RA) ≤ ra ra[float]: J2k° https://sassy.as.arizona.edu/sassy/ztf?ra__lte=360.0
?rb__gte=rb real/bogus score ≥ rb rb[float]: 0.0–1.0 https://sassy.as.arizona.edu/sassy/ztf?rb__gte=0.3 0.0 is the least reliable and 1.0 is the most reliable.
?rb__lte=rb real/bogus score ≤ rb rb[float]: 0.0–1.0 https://sassy.as.arizona.edu/sassy/ztf?rb__lte=0.3 0.0 is the least reliable and 1.0 is the most reliable.
?sid=id SASSy id id id[int]: SASSy identifier https://sassy.as.arizona.edu/sassy/ztf?sid=777
?sid__gte=sid SASSy id ≥ sid sid[int]: SASSy identifier https://sassy.as.arizona.edu/sassy/ztf?sid__gte=777
?sid__lte=sid SASSy id ≤ sid sid[int]: SASSy identifier https://sassy.as.arizona.edu/sassy/ztf?sid__lte=777
?sigmagpsf__gte=mag brightness uncertainty ≥ mag mag[float]: magnitude https://sassy.as.arizona.edu/sassy/ztf?sigmagpsf__gte=0.4 Magnitude uncertainty from PSF-fit photometry measured from difference image.
?sigmagpsf__lte=mag brightness uncertainty ≤ mag mag[float]: magnitude https://sassy.as.arizona.edu/sassy/ztf?sigmagpsf__lte=0.4 Magnitude uncertainty from PSF-fit photometry measured from difference image.
?time__gte=time calendar time ≥ time time[string]: yyyy-mm-dd https://sassy.as.arizona.edu/sassy/ztf?time__gte=2017-07-17
?time__lte=time calendar time ≤ time time[string]: yyyy-mm-dd https://sassy.as.arizona.edu/sassy/ztf?time__lte=2017-07-17

API Return page with ... ArgName[Type]: Description Example(s)
?&page=num given page number num[None]: page number https://sassy.as.arizona.edu/sassy/ztf?&page=2
?format=fmt given format fmt[string]: JSON https://sassy.as.arizona.edu/sassy/ztf/777?format=json Only JSON is supported