Comet 309P/LINEAR is at Perihelion (1.740 AU) on the 17th February 2015.
Ephemeris
Date TT R. A. (2000) Decl. Delta r Elong. Phase Mag 2015 02 15 01 28 38.8 +22 18 25 1.9362 1.7405 63.7 30.6 18.8 2015 02 16 01 31 04.3 +22 35 25 1.9432 1.7404 63.3 30.5 18.8 2015 02 17 01 33 30.9 +22 52 20 1.9502 1.7404 63.0 30.4 18.9 2015 02 18 01 35 58.5 +23 09 10 1.9572 1.7405 62.6 30.3 18.9 2015 02 19 01 38 27.1 +23 25 56 1.9643 1.7406 62.3 30.2 18.9 2015 02 20 01 40 56.8 +23 42 37 1.9713 1.7408 61.9 30.1 18.9 2015 02 21 01 43 27.6 +23 59 12 1.9784 1.7410 61.6 30.0 18.9 2015 02 22 01 45 59.3 +24 15 42 1.9855 1.7413 61.3 29.9 18.9 2015 02 23 01 48 32.1 +24 32 06 1.9926 1.7417 60.9 29.8 18.9 2015 02 24 01 51 05.9 +24 48 24 1.9997 1.7421 60.6 29.7 18.9 2015 02 25 01 53 40.7 +25 04 36 2.0068 1.7425 60.3 29.6 18.9 2015 02 26 01 56 16.5 +25 20 41 2.0140 1.7431 59.9 29.4 18.9 2015 02 27 01 58 53.3 +25 36 39 2.0211 1.7437 59.6 29.3 18.9 2015 02 28 02 01 31.0 +25 52 31 2.0283 1.7443 59.3 29.2 19.0
Comet 309P/LINEAR makes its closest approach to the Earth (1.215 AU) on the 11th October 2014
Date TT R. A. (2000) Decl. Delta r Elong. Phase Mag 2014 10 10 23 33 00.3 -08 34 04 1.2156 2.1560 153.5 11.9 18.8 2014 10 11 23 32 00.1 -08 27 20 1.2154 2.1506 152.4 12.4 18.7 2014 10 12 23 31 01.1 -08 20 24 1.2154 2.1452 151.3 12.9 18.7 2014 10 13 23 30 03.4 -08 13 16 1.2157 2.1398 150.2 13.4 18.7 2014 10 14 23 29 07.0 -08 05 56 1.2162 2.1344 149.1 13.9 18.7 2014 10 15 23 28 12.1 -07 58 24 1.2169 2.1290 148.0 14.4 18.7 2014 10 16 23 27 18.7 -07 50 41 1.2178 2.1237 146.8 14.9 18.7 2014 10 17 23 26 26.8 -07 42 46 1.2189 2.1184 145.7 15.4 18.7 2014 10 18 23 25 36.5 -07 34 39 1.2203 2.1131 144.6 15.8 18.7 2014 10 19 23 24 47.9 -07 26 21 1.2218 2.1078 143.5 16.3 18.7 2014 10 20 23 24 01.1 -07 17 51 1.2235 2.1025 142.4 16.8 18.7 2014 10 21 23 23 16.1 -07 09 10 1.2255 2.0973 141.3 17.2 18.7 2014 10 22 23 22 32.9 -07 00 18 1.2276 2.0921 140.3 17.7 18.7 2014 10 23 23 21 51.6 -06 51 14 1.2299 2.0869 139.2 18.2 18.6 2014 10 24 23 21 12.3 -06 42 00 1.2324 2.0818 138.1 18.6 18.6 2014 10 25 23 20 34.9 -06 32 35 1.2350 2.0766 137.0 19.0 18.6 2014 10 26 23 19 59.7 -06 22 59 1.2379 2.0715 136.0 19.5 18.6 2014 10 27 23 19 26.4 -06 13 13 1.2409 2.0664 134.9 19.9 18.6 2014 10 28 23 18 55.3 -06 03 16 1.2440 2.0613 133.9 20.3 18.6 2014 10 29 23 18 26.3 -05 53 09 1.2474 2.0563 132.8 20.7 18.6 2014 10 30 23 17 59.5 -05 42 53 1.2509 2.0513 131.8 21.2 18.6 2014 10 31 23 17 34.9 -05 32 26 1.2545 2.0463 130.8 21.6 18.6
Comet 309P/LINEAR is at Opposition (1.276 AU) on the 19th September, 2014
Date TT R. A. (2000) Decl. Delta r Elong. Phase Mag 2014 09 18 23 56 51.1 -10 19 06 1.2837 2.2815 170.8 4.0 19.1 2014 09 19 23 55 46.1 -10 16 24 1.2780 2.2757 171.0 4.0 19.1 2014 09 20 23 54 40.4 -10 13 33 1.2726 2.2699 170.9 4.0 19.1 2014 09 21 23 53 34.1 -10 10 34 1.2674 2.2642 170.7 4.1 19.1 2014 09 22 23 52 27.2 -10 07 25 1.2624 2.2584 170.4 4.3 19.0 2014 09 23 23 51 19.8 -10 04 06 1.2578 2.2527 169.9 4.5 19.0 2014 09 24 23 50 12.1 -10 00 38 1.2534 2.2469 169.3 4.8 19.0 2014 09 25 23 49 04.1 -09 56 59 1.2492 2.2412 168.6 5.1 19.0 2014 09 26 23 47 56.0 -09 53 10 1.2453 2.2355 167.8 5.4 19.0 2014 09 27 23 46 47.7 -09 49 10 1.2417 2.2299 167.0 5.8 19.0 2014 09 28 23 45 39.4 -09 44 59 1.2384 2.2242 166.1 6.2 18.9 2014 09 29 23 44 31.3 -09 40 37 1.2353 2.2185 165.1 6.7 18.9 2014 09 30 23 43 23.3 -09 36 03 1.2324 2.2129 164.1 7.1 18.9