{
  "bibcode": "2020GCN.26814....1D",
  "body": "K. De (Caltech), M. Hankins (Caltech), M. M. Kasliwal (Caltech) report\non behalf of the ZTF and GROWTH collaborations\n\nWe obtained J and Ks band imaging of ZTF20aafqvyc/AT2020yq (Anand et\nal. GCN 26767) found in the localization region of LIGO/Virgo S200115j\n(GCN 26759, GCN 26807) with the Wide Field Infrared Camera (WIRC;\nWilson et al. 2003) on the Palomar 200-inch telescope. We obtained a\nseries of dithered exposures of the target on UT 2020-01-18 for a\ntotal exposure time of 900 s in J band and 600 s in Ks band. The data\nwere reduced and stacked with a custom data reduction pipeline (De et\nal. 2020). No source is detected at the source location down to 5\nsigma limiting magnitude of J = 21.5 AB mag and Ks = 20.9 AB mag.",
  "circularId": 26814,
  "createdOn": 1579369164000,
  "email": "kde@astro.caltech.edu",
  "subject": "LIGO/Virgo S200115j: NIR upper limits for ZTF20aafqvyc/AT2020yq from the Palomar 200-inch telescope",
  "submitter": "Kishalay De at Caltech, GROWTH  <kde@astro.caltech.edu>",
  "eventId": "LIGO/Virgo S200115j"
}