TITLE: GCN CIRCULAR NUMBER: 26364 SUBJECT: LIGO/Virgo S191205ah: Pan-STARRS1 previous detections of SAGUARO transient DATE: 19/12/06 14:44:03 GMT FROM: O. McBrien at QUB O. McBrien, K. W. Smith, S. J. Smartt, D. R. Young, S. Srivastav, J. Gillanders, P. Clark, M. Fulton, (Queen's University Belfast), M. Huber, K. C. Chambers, H. Flewelling, M. Willman, A. Schultz, E. Magnier, C. Waters, J. Bulger, R. J. Wainscoat (IfA, Hawaii), D. Wright, (Univ. of Minnesota) report: Following on from Paterson et al. (GCN 26360), we report previous Pan-STARRS1 (Chambers et al. 2016) detections of the transient SAGUARO19j, dating back to 2019 Nov 29. We have 4 detections at the location of the transient (RA = 23:15:56.35, Dec = +10:41:01.2) as detailed below, all in the PS1 w-band filter: MJD | Magnitude | Error 58816.3377791 | 20.4147 | 0.120339 58816.3275293 | 20.4336 | 0.0684682 58816.3172459 | 20.4022 | 0.082446 58816.3069985 | 20.3953 | 0.0836078 These PS1 detections were registered as a unique object to the TNS with the identifier AT2019wdb. As such, we do not believe this object is associated with S191205ah.