{
  "bibcode": "2019GCN.24319....1I",
  "body": "L. Izzo (HETH/IAA-CSIC), D. B. Malesani (DAWN/NBI and DARK/NBI), R. \nCarini (INAF/OAR) report:\n\nWe observed the field of ZTF19aasckkq, reported by the Zwicky Transient \nFacility (Anand et al., GCN 24311) to lie within the localization area \nof the LIGO/Virgo trigger S190425z (GCN 24168). We used the Nordic \nOptical Telescope (NOT) located in La Palma (Canary Islands, Spain) and \nequipped with the AlFOSC camera.\n\nWe report the following magnitudes on the approximate date April 28.14 \nUT (2.8 days after the explosion of S190425z):\n\ng = 20.63 +- 0.02\nr = 20.33 +- 0.02\ni = 20.29 +- 0.02\n\nThese magnitudes are calibrated against the Pan-STARRS survey; no \nsubtraction of the host galaxy was attempted, but the target is \nrelatively isolated and host contamination should not be a major \ncontribution. Our measurements are consistent with those reported by \nAnand et al. (GCN 24311) on April 26 (unspecified time), as well as by \nPerley et al. (GCN 24314) on April 27.14 UT.\n\nThe object seems therefore slowly variable, and less likely to be \nassociated with S190425z.",
  "circularId": 24319,
  "createdOn": 1556425091000,
  "email": "malesani@dark-cosmology.dk",
  "subject": "LIGO/Virgo S190425z: NOT photometry of ZTF19aasckkq",
  "submitter": "Daniele Malesani at Dark Cosmology Centre, Niels Bohr Inst  <malesani@dark-cosmology.dk>",
  "eventId": "LIGO/Virgo S190425z"
}