TITLE: GCN CIRCULAR NUMBER: 29309 SUBJECT: ZTF21aaeyldq: Lowell Discovery Telescope observations DATE: 21/01/17 12:24:40 GMT FROM: Tomas Ahumada at U. of Maryland Tomas Ahumada (UMD), John Della Costa(SDSU), Brad Cenko (NASA GSFC), and Robert Quimby (SDSU): We imaged the position of ZTF21aaeyldq (Ho et al., GCN 29305), a ZTF discovered fast-fading transient with the Large Monolithic Imager (LMI) mounted at the 4.3m Lowell Discovery Telescope, starting at 2021-01-17 07:59:33 UT. We acquired three 180 sec exposures in the i-band and reduced them following standard procedures. Our image shows a clear source at the position reported by Ho et al. We calibrated the flux against SDSS sources in the field and derived a magnitude of 22.1 +- 0.2 mag. The magnitude we report is not extinction corrected. We thank the LDT staff, particularly Stephen Levine and Amanda Bosh for their assistance. -- Tomas Ahumada (he/him) Ph.D. Student Department of Astronomy University of Maryland, College Park B.Sc. Astronomy, Pontificia Universidad Católica de Chile