477885 (2011 JT9)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5185451094 ± 4.29e-08
Semi-major axis (a)2.6951360659 AU ± 1.24e-08
Inclination (i)19.05131166° ± 4.05e-06
Long. of Asc. Node (Ω)118.94512835° ± 8.01e-06
Arg. of Perihelion (ω)185.31023648° ± 1.22e-05
Mean Anomaly (M)69.13277656° ± 3.51e-06
Mean Motion (n)0.2227620637°/day ± 1.53e-09
Perihelion dist (q)1.29758644 AU ± 1.16e-07
Aphelion dist (Q)4.09268569 AU ± 1.17e-07
Orbital Period4.42456973 yr ± 3.05e-08
Physical Parameters
H (abs. magnitude)17.25
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.316″
Uncertainty0
Orbit TypeAmor
MOID0.281108 AU
Observations Used817
Oppositions14
Arc Total2007-2025
First Observation Used2007-11-11
Last Observation Used2025-12-15
Observations (1102)
Date Type RA Dec Mag Band Observatory
2020-07-15 21:33:03 C 16 40 25.00 -02 43 54.9 q L63
2020-07-16 21:07:24 C 16 40 45.47 -03 33 14.6 q L63
2020-07-16 21:12:25 C 16 40 45.50 -03 33 24.7 q L63
2020-07-16 21:21:52 C 16 40 45.61 -03 33 45.0 q L63
2020-07-17 06:07:02 C 16 40 54.15 -03 52 13.3 U65
2020-07-17 06:21:53 C 16 40 54.32 -03 52 45.0 U65
2020-07-17 06:37:14 C 16 40 54.53 -03 53 18.3 U65
2020-07-17 07:35:04 C 16 40 55.779 -03 55 13.46 U F51
2020-07-17 07:53:01 C 16 40 55.976 -03 55 51.47 U F51
2020-07-17 08:11:02 C 16 40 56.179 -03 56 29.79 U F51
2020-07-17 08:28:58 C 16 40 56.375 -03 57 07.77 U F51
2020-07-18 04:07:44 C 16 41 17.84 -04 39 00.4 q H06
2020-07-18 04:23:13 C 16 41 18.06 -04 39 33.7 q H06
2020-07-18 04:44:36 C 16 41 18.36 -04 40 19.0 q H06
2020-07-18 08:08:36 C 16 41 22.20 -04 47 31.6 V T08
2020-07-18 08:13:15 C 16 41 22.26 -04 47 41.5 V T08
2020-07-18 08:21:57 C 16 41 22.39 -04 48 00.1 V T08
2020-07-18 08:46:08 C 16 41 22.71 -04 48 51.9 V T08
2020-07-20 06:56:38 C 16 42 24.461 -06 28 47.86 U F51
2020-07-20 07:51:59 C 16 42 25.506 -06 30 48.70 U F51
2020-07-20 08:08:42 C 16 42 25.82 -06 31 25.1 V T05
2020-07-20 08:16:39 C 16 42 25.97 -06 31 42.3 V T05
2020-07-20 08:27:22 C 16 42 26.18 -06 32 06.0 V T05
2020-07-20 08:34:42 C 16 42 26.33 -06 32 21.9 V T05
2020-07-23 07:31:26 C 16 44 29.909 -09 09 08.81 U F51
2020-07-23 07:48:47 C 16 44 30.384 -09 09 47.48 U F51
2020-07-23 08:06:11 C 16 44 30.864 -09 10 26.30 U F51
2020-07-23 21:01:07 C 16 44 57.25 -09 39 23.9 V G17
2020-07-23 21:05:07 C 16 44 57.39 -09 39 33.0 V G17
2020-07-23 21:09:08 C 16 44 57.49 -09 39 42.3 V G17
2020-07-24 08:26:14 C 16 45 21.35 -10 04 52.8 V T05
2020-07-24 08:30:55 C 16 45 21.48 -10 05 02.8 V T05
2020-07-24 08:40:12 C 16 45 21.78 -10 05 23.7 V T05
2020-07-24 08:54:19 C 16 45 22.21 -10 05 55.4 V T05
2020-08-08 07:37:27 C 17 06 26.36 -23 24 16.9 V T05
2020-08-08 07:45:25 C 17 06 26.96 -23 24 33.8 V T05
2020-08-08 08:14:38 C 17 06 29.21 -23 25 35.3 V T05
2020-09-08 15:29:53 S 18 43 03.300 -42 36 36.50 L C51
2020-09-08 18:38:12 S 18 43 34.661 -42 39 10.51 L C51
2020-09-08 21:46:31 S 18 44 06.067 -42 41 44.34 L C51
2020-09-09 00:54:50 S 18 44 37.577 -42 44 15.65 L C51
2020-09-09 04:03:10 S 18 45 09.178 -42 46 47.39 L C51
2020-09-09 07:11:28 S 18 45 40.654 -42 49 16.25 L C51
2020-09-09 10:19:48 S 18 46 12.166 -42 51 45.22 L C51
2020-09-09 13:28:07 S 18 46 43.781 -42 54 10.62 L C51
2020-09-09 19:44:44 S 18 47 47.16 -42 59 03.3 L C51
2020-09-09 22:53:04 S 18 48 18.749 -43 01 26.18 L C51
2020-09-10 00:27:08 S 18 48 34.757 -43 02 38.18 L C51
2020-09-10 02:01:23 S 18 48 50.54 -43 03 48.2 L C51
2020-09-10 03:35:27 S 18 49 06.413 -43 05 00.46 L C51