Comet P/2000 QJ46 = 2014 O1 (LINEAR) 7月25-26日UT、M. Micheliの通報によるとD. AbreuがTenerife, スペインのESA(欧州宇宙機関)の 光学地上局の1.0-m f/4.4 反射望遠鏡で得た画像からMicheliらの測定により19.6-19.9等の P/2000 QJ46 (LINEAR)を検出した。 検出位置は次のとおり、 2014 UT R.A. (2000) Decl. Mag. Observer July 25.15213 22 06 28.21 - 9 03 38.0 19.9 Abreu 25.16382 22 06 28.05 - 9 03 40.0 19.8 " 25.17551 22 06 27.93 - 9 03 41.3 19.9 " 25.18720 22 06 27.79 - 9 03 42.7 19.9 " 26.08746 22 06 18.83 - 9 05 58.7 19.7 " 26.09078 22 06 18.77 - 9 05 59.5 19.6 " MPC 75735のB. G. Marsdenの予報に対し、Delta(T)は、-0.24 dayであった。 連結軌道要素、位置推算表は次のとおり、 Orbital elements: P/2000 QJ46 = 2014 O1 (LINEAR) Epoch 2000 Dec. 2.0 TT = JDT 2451880.5 T 2000 Dec. 10.32599 TT MPC q 1.9337753 (2000.0) P Q n 0.06861056 Peri. 222.94789 +0.93163866 -0.36228348 a 5.9093819 Node 158.24399 +0.35065199 +0.87583810 e 0.6727618 Incl. 4.37669 +0.09535509 +0.31883899 P 14.4 From 31 observations 2000 Aug. 24-2014 July 26, mean residual 0".7. P/2000 QJ46 = 2014 O1 (LINEAR) Epoch 2014 Dec. 9.0 TT = JDT 2457000.5 T 2014 Dec. 20.23033 TT MPC q 1.8891541 (2000.0) P Q n 0.07054875 Peri. 222.14923 +0.93751296 -0.34675607 a 5.8006480 Node 158.08939 +0.33628544 +0.88171808 e 0.6743202 Incl. 4.42705 +0.08933951 +0.31989601 P 14.0 From 31 observations 2000 Aug. 24-2014 July 26, mean residual 0".7. P/2000 QJ46 = 2014 O1 (LINEAR) Epoch 2028 Dec. 15.0 TT = JDT 2462120.5 T 2028 Dec. 6.37115 TT MPC q 1.8867743 (2000.0) P Q n 0.07057539 Peri. 222.23902 +0.93742479 -0.34698384 a 5.7991882 Node 158.01330 +0.33654360 +0.88163402 e 0.6746486 Incl. 4.43185 +0.08929255 +0.31988072 P 14.0 From 31 observations 2000 Aug. 24-2014 July 26, mean residual 0".7. P/2000 QJ46 = 2014 O1 (LINEAR) Epoch 2014 May 23.0 TT = JDT 2456800.5 T 2014 Dec. 20.21905 TT MPC q 1.8891496 (2000.0) P Q n 0.07050464 Peri. 222.14588 +0.93752977 -0.34671082 a 5.8030670 Node 158.08997 +0.33624176 +0.88173334 e 0.6744567 Incl. 4.42679 +0.08932753 +0.31990299 P 14.0 From 31 observations 2000 Aug. 24-2014 July 26, mean residual 0".7. Ephemeris: P/2000 QJ46 (LINEAR) Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 2014 06 27 22 02 37.8 -08 57 27 1.8337 2.5612 125.5 18.9 20.4 ... 2014 07 12 22 06 43.5 -08 45 45 1.6139 2.4708 138.8 15.7 20.0 ... 2014 07 20 22 07 00.8 -08 53 15 1.5116 2.4238 146.3 13.4 19.7 ... 2014 07 26 22 06 19.7 -09 05 42 1.4428 2.3892 152.3 11.4 19.6 2014 07 27 22 06 08.4 -09 08 21 1.4320 2.3835 153.3 11.0 19.6 2014 07 28 22 05 55.9 -09 11 10 1.4215 2.3778 154.3 10.7 19.5 ... 2014 08 03 22 04 16.1 -09 31 22 1.3626 2.3440 160.6 8.3 19.4 ... 2014 08 11 22 01 04.6 -10 06 27 1.2967 2.3000 169.1 4.8 19.2 ... 2014 08 26 21 53 12.2 -11 30 20 1.2136 2.2212 173.9 2.8 18.9 Computer: Williams (CBET 3923、MPEC 2014-O44)