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.


Transient Name Server catalog (TNS) Description

    
    Sourced from https://wis-tns.weizman.ac.il/search ... via record(s):

    {'41314': 
        {
            'name': 'AT 2019ktf', 
            'name_link': 'https://wis-tns.weizmann.ac.il/object/2019ktf', 
            'reps': '1', 
            'reps_links': ['https://wis-tns.weizmann.ac.il/object/2019ktf/discovery-cert'], 
            'class': '', 
            'ra': '23:32:29.939', 
            'decl': '-29:33:36.66', 
            'ot_name': '', 
            'redshift': math.nan, 
            'hostname': '', 
            'host_redshift': math.nan, 
            'source_group_name': 'ATLAS', 
            'classifying_source_group_name': '', 
            'groups': 'ATLAS', 
            'internal_name': 'ATLAS19oqd', 
            'discovering_instrument_name': 'ATLAS1 - ACAM1', 
            'classifing_instrument_name': '', 
            'isTNS_AT': 'Y', 
            'public': 'Y', 
            'end_prop_period': '', 
            'spectra_count': '', 
            'discoverymag': math.nan, 
            'disc_filter_name': 'cyan-ATLAS', 
            'discoverydate': '2019-07-07 14:00:57', 
            'discoverer': 'ATLAS_Bot1', 
            'remarks': '', 
            'sources': '', 
            'bibcode': '', 
            'ext_catalogs': ''
        }
    }

    Database schema:
    DROP TABLE IF EXISTS tns;
    CREATE TABLE tns (
        id serial PRIMARY KEY,
        tns_id INTEGER,
        tns_name VARCHAR(128) NOT NULL,
        tns_link VARCHAR(128),
        ra double precision,
        dec double precision,
        redshift double precision,
        discovery_date TIMESTAMP,
        discovery_mag double precision,
        discovery_instrument VARCHAR(128),
        filter_name VARCHAR(32),
        tns_class VARCHAR(128),
        host VARCHAR(128),
        host_z double precision,
        source_group VARCHAR(128),
        alias VARCHAR(128),
        certificate VARCHAR(128)
    );
    EOF