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The discovery of DLT17ah/AT 2017ckg

ATel #10214; Tartaglia, L. (TTU, UC Davis), Sand, D., Wyatt S. (TTU), Valenti, S., Bostroem, K. A. (UC Davis), Hosseinzadeh, G., Arcavi, I., Howell, D. A., McCully, C. (LCOGT/UCSB), Reichart, D. E., Haislip, J. B., Kouprianov, V. (UNC)
on 26 Mar 2017; 21:25 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Leonardo Tartaglia (ltartaglia@ucdavis.edu)

Subjects: Optical, Supernovae, Transient

Referred to by ATel #: 10218, 10240

We report the discovery of DLT17ah/AT 2017ckg. The object was discovered on 2017 03 26.38 UT at R~17.51 mag, during the ongoing D<40 Mpc (DLT40) one day cadence supernova search, using data from the PROMPT 5 0.41m telescope located at CTIO. A confirmation image was obtained on 2017 03 26.81 UT using a 1m LCO telescope within the supernova Key Project (LCOGT node at SAAO). DLT17ah/AT 2017ckg is located at RA: 13:22:05.95, Dec: -13:08:09.7, (+2.05'' E, +6.31'' N offset from the center of the host, LCSB S1878P). We do not detect the transient (R>19.9 mag) on 2017 03 13.22 UT or in prior imaging of the field. DLT40 images were taken in a 'Clear' filter which was calibrated to an approximate R-band magnitude using the USNO-B1 catalog. Further observations are encouraged.