GCN Circular 14227
D. A. Perley (Caltech) reports: I re-observed the location of GRB 130215A with the Wide-Field Infrared Camera (WIRC) on the Palomar 200-inch telescope on 2013-02-17 UT between 02:09 and 02:37 and between 04:29 and 04:56. Images were again taken in J, H, and Ks-bands; transmission and seeing conditions were good. The NIR afterglow remains well-detected in the most recent images. Photometry of the Ks-band images gives the following magnitudes (Vega): t_mid=48.75 hours : Ks = 17.57 +/- 0.05 mag t_mid=51.07 hours : Ks = 17.60 +/- 0.07 mag Relative to the previous night (GCN 14222), these observations show remarkably little fading (decay index alpha~0.4 between 25-50 hours, compared to alpha~1.5 earlier; Butler et al., GCN 14212). This could indicate contribution from a bright host galaxy, but no obvious extension of the source is seen (in 1" seeing). Alternatively it could indicate a bump, plateau or flare in the light curve. Further observations with WIRC are not planned, but observations elsewhere are encouraged to constrain further evolution of the afterglow.