Zwicky Transient Facility

Mission Characteristics

Survey Duration: Phase I: Feb 2018 - Sept 2020 Phase II: Dec 2020 -
Partners: Caltech, IPAC, the Weizmann Institute for Science, the Oskar Klein Center at Stockholm University, the University of Maryland, the University of Washington, Deutsches Elektronen-Synchrotron and Humboldt University, Los Alamos National Laboratories, the TANGO Consortium of Taiwan, the University of Wisconsin at Milwaukee, and Lawrence Berkeley National Laboratories. Operations were conducted by Caltech Optical Observatories, IPAC, and University of Washington. Caltech, IPAC, the Weizmann Institute for Science, the Oskar Klein Center at Stockholm University, the University of Maryland, Deutsches Elektronen-Synchrotron and Humboldt University, Lawrence Livermore National Laboratories, the TANGO Consortium of Taiwan, the University of Wisconsin at Milwaukee, Trinity College Dublin, and Institut national de physique nucléaire et de physique des particules (IN2P3). Operations are conducted by Caltech Optical Observatories, IPAC, and University of Washington.
Description: ZTF is a fully-automated, wide-field survey aimed at a systematic exploration of the optical transient sky.
Filters: ZTF_g, ZTF_r, ZTF_i
Survey Coverage: Approximately 25,000 to 30,000 square degrees, the Northern sky visible from Palomar Observatory.
Instruments: 16 6k x 6k CCDs filling the focal plane with a 47 sq. deg. field of view.
Canonical Papers: ZTF Science Data Processing System: Masci et al. (2019)
ZTF Technical Specifications and Survey Design: Bellm et al. (2019)
Dates of Major Releases: May 8, 2019: Data Release 1
December 11, 2019: Data Release 2 (products supersede DR1)
June 24, 2020: Data Release 3 (products supersede DR2)
December 9, 2020: Data Release 4 (products supersede DR3)
March 31, 2021: Data Release 5 (products supersede DR4)

IRSA Services

Image Access Interactive access to ZTF data.
Catalog Query Access the ZTF catalogs through IRSA's Catalog Search service. Lightcurve results can be sent to IRSA's Time Series Tool.
Moving Object Search Tool (MOST) Determine the orbit for a given solar system object then find ZTF images that covered the object's predicted positions at their observation epochs.
Time Series Tool Plot time series data, view associated images, find period, and phase fold. This tool is also accessible through the Catalog Search.
Browse Data Browseable directories of ZTF data. See metadata documentation.
Image/Catalog File Program Interface API documentation to create scripts to query and retrieve ZTF data products, including cutouts.
Image Metadata Descriptions of the metadata that describe the ZTF images. These metadata are used in both the API and web GUI.
Lightcurve Program Interface API documentation for ZTF lightcurve data.
Lightcurve Bulk Download Bulk download of ZTF lightcurves in Parquet format (Documentation)

Other Resources

ZTF Data Release 5 summary and guide
ZTF Explanatory Supplement
ZTF Home Page