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.


Zwicky Transient Facility (ZTF)

This page provides a default interface to the ZTF. The table lists ZTF records in descending order by jd. Use the filters on the right to narrow down the results to areas of interest. When the results look good, add ?format=json to the URL. You can then access the URL to retrieve the full data and use it in your scripts. You can access an alert's previous alerts by visiting /<sid>/ where sid is the value of the sid key in the JSON view or by clicking the sid link in the table.

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216650342 record(s) found. Showing page 1 / 4333007.
Latest Alert: 2022-11-22 03:08:32 UTC

sid objectId Time Filter RA Dec magpsf magap Dist δmaglatest δmagref rbscore drbscore cla*
UTC {g,i,r} J2k(°) J2k(°) mag mag pxl δmag δmag 0–1 0–1 0–1
219638837 ZTF18abnykjj 2022-11-22 03:08:32 r 312.323 20.524 17.967 18.380 0.88 0.200 -2.798 0.39 0.15 1.00
219638840 ZTF21abkeryy 2022-11-22 03:08:32 r 312.890 16.244 19.941 19.669 0.12 -0.018 -0.417 0.84 1.00 0.89
219638878 ZTF22abvylew 2022-11-22 03:08:32 r 313.323 16.423 18.648 18.841 1.39 None 1.261 0.46 0.00 0.98
219638879 ZTF19acasehu 2022-11-22 03:08:32 r 311.897 20.420 18.315 18.606 0.24 -0.023 -2.155 0.53 0.96 1.00
219638918 ZTF18abnbkuk 2022-11-22 03:08:32 r 312.782 16.421 18.247 18.229 0.37 0.364 -1.673 0.90 1.00 1.00
219638940 ZTF18admcdon 2022-11-22 03:08:32 r 313.291 16.147 13.987 14.087 0.20 -0.555 -0.976 0.59 0.18 0.99
219638968 ZTF18abjhark 2022-11-22 03:08:32 r 312.101 20.300 15.291 15.465 0.09 -0.083 -1.881 0.53 0.15 1.00
219639013 ZTF19aavakgd 2022-11-22 03:08:32 r 312.492 20.583 18.965 19.081 0.60 0.164 -1.807 0.66 0.92 1.00
219639023 ZTF22abvyled 2022-11-22 03:08:32 r 312.221 20.007 16.945 17.322 6.05 None None 0.13 0.00 1.00
219639024 ZTF18abktusx 2022-11-22 03:08:32 r 312.498 20.126 17.872 18.111 0.22 0.037 -2.015 0.52 0.96 1.00
219639056 ZTF18abjrdbf 2022-11-22 03:08:32 r 311.994 19.991 18.500 18.338 0.27 -0.124 -2.114 0.89 1.00 0.98
219639107 ZTF18abjhbge 2022-11-22 03:08:32 r 307.992 21.730 16.083 16.260 0.10 0.150 -2.491 0.43 0.96 0.94
219639131 ZTF20abaftwu 2022-11-22 03:08:32 r 312.903 16.680 19.914 19.770 0.03 0.061 -0.632 0.87 1.00 0.83
219639170 ZTF18abnylrl 2022-11-22 03:08:32 r 308.404 21.482 15.859 16.027 0.82 -0.226 -3.200 0.29 0.98 1.00
219639218 ZTF18abktuqu 2022-11-22 03:08:32 r 307.785 21.688 17.246 17.270 0.22 -1.284 -1.781 0.77 0.98 0.99
219639359 ZTF18ablvzfo 2022-11-22 03:08:32 r 308.553 21.495 16.961 17.169 0.31 0.203 -1.902 0.56 0.97 1.00
219639940 ZTF22abvylmq 2022-11-22 03:08:32 r 312.272 21.151 18.073 18.509 5.08 None None 0.27 0.00 1.00
219639950 ZTF18abkccto 2022-11-22 03:08:32 r 311.800 21.472 16.324 16.434 0.57 -0.164 -1.925 0.63 0.01 1.00
219639956 ZTF19abffygn 2022-11-22 03:08:32 r 312.221 21.190 16.492 16.653 0.88 0.276 -2.647 0.53 0.85 1.00
219640060 ZTF18ablvynn 2022-11-22 03:08:32 r 311.740 21.423 17.137 17.122 0.39 0.262 -2.477 0.49 0.76 1.00
219640149 ZTF19abffygn 2022-11-22 03:08:32 r 312.221 21.190 16.484 16.518 0.68 0.268 -2.639 0.57 0.85 1.00
219640151 ZTF18abjrdcm 2022-11-22 03:08:32 r 312.192 21.220 16.609 16.554 0.56 0.915 -2.097 0.69 0.97 1.00
219640152 ZTF18abjrdck 2022-11-22 03:08:32 r 312.119 21.166 16.529 16.591 0.15 -0.015 -1.613 0.72 0.99 0.98
219641391 ZTF18abtovfo 2022-11-22 03:08:32 r 309.297 17.464 17.234 17.216 0.25 -0.639 -1.684 0.79 0.99 1.00
219641454 ZTF18abtovfm 2022-11-22 03:08:32 r 309.038 17.940 14.630 14.829 0.06 None -1.273 0.47 0.96 1.00
219641483 ZTF18abwdxoo 2022-11-22 03:08:32 r 308.989 17.161 18.690 18.563 0.24 -0.833 -1.413 0.89 1.00 1.00
219641502 ZTF19aabjzlv 2022-11-22 03:08:32 r 309.176 17.488 18.367 18.392 0.07 -0.139 -1.521 0.87 1.00 0.99
219641531 ZTF18abuktsb 2022-11-22 03:08:32 r 309.348 17.794 15.498 15.393 0.59 -0.854 -1.528 0.65 0.98 1.00
219641546 ZTF18absnrms 2022-11-22 03:08:32 r 308.902 17.716 18.261 18.288 0.52 None -1.458 0.85 1.00 0.99
219641549 ZTF19abzovsn 2022-11-22 03:08:32 r 309.356 17.607 19.015 19.124 0.24 0.015 -1.809 0.70 1.00 0.94
219641588 ZTF22abvyluk 2022-11-22 03:08:32 r 309.366 17.758 17.688 18.020 10.84 None None 0.32 0.01 1.00
219641597 ZTF19aaxompv 2022-11-22 03:08:32 r 309.223 17.163 19.892 19.619 0.29 -0.123 -1.300 0.80 1.00 0.87
219641599 ZTF22abvylun 2022-11-22 03:08:32 r 308.908 17.442 19.582 20.214 1.53 None 1.500 0.37 1.00 0.98
219641654 ZTF18abnylnq 2022-11-22 03:08:32 r 308.355 17.422 15.145 15.222 0.07 -0.055 -1.541 0.65 0.82 1.00
219641721 ZTF18abtovjo 2022-11-22 03:08:32 r 308.299 17.543 17.505 17.562 0.48 0.033 -1.048 0.85 1.00 1.00
219641770 ZTF20aboifhu 2022-11-22 03:08:32 r 308.461 17.622 19.201 19.436 0.33 -0.138 -1.603 0.60 0.89 0.99
219641855 ZTF18abnylni 2022-11-22 03:08:32 r 308.233 17.535 15.860 15.865 0.77 0.199 -1.956 0.62 0.85 1.00
219641912 ZTF22abvylwj 2022-11-22 03:08:32 r 308.529 17.380 18.697 19.153 5.72 None None 0.21 0.01 1.00
219642993 ZTF18abjhatn 2022-11-22 03:08:32 r 311.043 20.380 15.874 16.194 0.61 -0.056 -1.651 0.57 0.98 0.98
219643015 ZTF18abiklhh 2022-11-22 03:08:32 r 310.855 20.205 16.061 16.353 0.19 0.051 -2.381 0.53 0.17 1.00
219643067 ZTF18abortfc 2022-11-22 03:08:32 r 311.496 20.395 16.440 16.274 1.01 0.055 -2.280 0.48 0.51 0.98
219643083 ZTF18abjhats 2022-11-22 03:08:32 r 311.208 20.591 18.782 18.739 0.15 0.084 -2.210 0.65 0.89 0.99
219643113 ZTF18abjhatn 2022-11-22 03:08:32 r 311.043 20.381 15.806 15.822 0.39 -0.124 -1.583 0.81 0.98 1.00
219643119 ZTF18abiklhm 2022-11-22 03:08:32 r 311.126 20.163 16.609 16.697 0.18 -0.272 -1.760 0.74 0.05 0.93
219643122 ZTF18abiklhr 2022-11-22 03:08:32 r 310.842 20.480 17.413 17.413 0.26 -0.183 -0.233 0.92 1.00 1.00
219643167 ZTF18abtouwr 2022-11-22 03:08:32 r 311.198 19.984 18.959 19.149 0.25 0.596 -2.014 0.59 0.99 0.99
219643168 ZTF22abvymaa 2022-11-22 03:08:32 r 310.790 20.100 19.207 19.555 7.40 None None 0.36 0.00 0.98
219643228 ZTF22abvymab 2022-11-22 03:08:32 r 311.555 20.068 19.837 20.190 10.27 None None 0.46 0.43 0.99
219643241 ZTF22abfvjky 2022-11-22 03:08:32 r 311.360 20.344 20.204 20.764 1.35 -0.131 1.872 0.52 0.99 0.99
219643421 ZTF18abnblev 2022-11-22 03:08:32 r 310.200 17.678 15.940 15.897 0.92 0.543 -2.688 0.51 0.06 0.02
216650342 record(s) found, showing page 1 / 4333007.
Latest Alert: 2022-11-22 03:08:32 UTC