Comet C/2011 C3 (Gibbs) makes its closest approach to the Earth (0.806 AU) on the 6th April, 2011.
Ephemeris
Date TT R. A. (2000) Decl. Delta r Elong. Phase Mag 2011 04 05 16 23 58.0 -59 00 12 0.8100 1.5175 113.5 37.2 18.4 2011 04 06 16 24 58.2 -60 16 23 0.8097 1.5173 113.5 37.2 18.4 2011 04 07 16 25 57.2 -61 32 08 0.8098 1.5172 113.4 37.2 18.4 2011 04 08 16 26 55.2 -62 47 22 0.8102 1.5171 113.4 37.3 18.4 2011 04 09 16 27 51.9 -64 01 59 0.8111 1.5173 113.3 37.3 18.4 2011 04 10 16 28 47.4 -65 15 55 0.8124 1.5175 113.1 37.4 18.4 2011 04 11 16 29 41.3 -66 29 05 0.8141 1.5179 113.0 37.4 18.4 2011 04 12 16 30 33.6 -67 41 24 0.8161 1.5184 112.8 37.5 18.4 2011 04 13 16 31 24.2 -68 52 49 0.8186 1.5191 112.7 37.5 18.4 2011 04 14 16 32 12.7 -70 03 16 0.8213 1.5198 112.5 37.6 18.4 2011 04 15 16 32 59.0 -71 12 40 0.8245 1.5207 112.3 37.6 18.4 2011 04 16 16 33 42.6 -72 20 59 0.8280 1.5217 112.0 37.7 18.4 2011 04 17 16 34 23.2 -73 28 09 0.8318 1.5229 111.8 37.7 18.4 2011 04 18 16 35 00.2 -74 34 09 0.8359 1.5241 111.6 37.8 18.4 2011 04 19 16 35 33.1 -75 38 55 0.8403 1.5255 111.3 37.8 18.5 2011 04 20 16 36 00.9 -76 42 25 0.8451 1.5271 111.0 37.9 18.5
Orbital elements: C/2011 C3 (Gibbs)T 2011 Apr. 8.50465 TT MPCq 1.5108836 (2000.0) P Q Peri. 207.65654 -0.72045201 +0.63813010 Node 20.87846 -0.40663342 -0.07151563e 1.0 Incl. 49.63644 -0.56178124 -0.76659995From 22 observations 2011 Feb. 12-15.