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
2020-09-10 05:09:42 S 18 49 22.44 -43 06 10.6 L C51
2020-09-10 06:44:40 S 18 49 38.41 -43 07 21.7 L C51
2020-09-10 08:18:45 S 18 49 54.343 -43 08 31.74 L C51
2020-09-10 09:53:00 S 18 50 10.25 -43 09 41.6 L C51
2020-09-10 11:27:04 S 18 50 26.16 -43 10 51.6 L C51
2020-09-10 13:00:24 S 18 50 41.96 -43 11 58.2 L C51
2020-09-10 13:00:35 S 18 50 42.00 -43 11 59.3 L C51
2020-09-10 16:09:27 S 18 51 13.97 -43 14 16.5 L C51
2020-09-10 17:43:42 S 18 51 29.861 -43 15 25.67 L C51
2020-09-10 19:17:46 S 18 51 45.89 -43 16 33.3 L C51
2020-09-10 20:52:01 S 18 52 01.992 -43 17 42.07 L C51
2020-09-11 00:00:20 S 18 52 33.852 -43 19 55.60 L C51
2020-09-11 01:34:24 S 18 52 49.85 -43 21 02.0 L C51
2020-09-11 03:08:39 S 18 53 05.85 -43 22 08.6 L C51
2020-09-11 06:43:36 C 18 53 42.42 -43 24 51.8 V T08
2020-09-11 06:48:55 C 18 53 43.31 -43 24 55.2 V T08
2020-09-11 06:56:53 C 18 53 44.56 -43 25 00.6 V T08
2020-09-11 07:14:09 C 18 53 47.46 -43 25 12.9 V T08
2020-09-11 07:51:02 S 18 53 53.90 -43 25 26.6 L C51
2020-09-11 07:51:13 S 18 53 53.96 -43 25 26.9 L C51
2020-09-11 10:59:21 S 18 54 26.02 -43 27 36.9 L C51
2020-09-11 10:59:32 S 18 54 26.00 -43 27 37.2 L C51
2020-09-11 17:16:10 S 18 55 30.40 -43 31 52.9 L C51
2020-09-11 20:24:29 S 18 56 02.405 -43 34 00.70 L C51
2020-09-11 23:32:48 S 18 56 34.697 -43 36 06.59 L C51
2020-09-12 02:41:07 S 18 57 06.862 -43 38 11.47 L C51
2020-09-12 05:49:26 S 18 57 39.079 -43 40 16.68 L C51
2020-09-12 08:57:45 S 18 58 11.393 -43 42 17.86 L C51
2020-09-12 12:05:20 S 18 58 43.546 -43 44 16.69 L C51
2024-03-06 09:33:08 C 12 32 04.198 +22 08 55.21 X F52
2024-03-06 09:51:49 C 12 32 03.585 +22 09 04.40 X F52
2024-03-06 10:29:17 C 12 32 02.344 +22 09 22.59 X F52
2024-05-04 08:13:40 C 11 41 45.172 +27 27 52.39 X F52
2024-05-04 08:29:48 C 11 41 44.859 +27 27 50.75 X F52
2024-05-04 08:46:00 C 11 41 44.567 +27 27 48.41 X F52
2024-05-04 09:02:14 C 11 41 44.250 +27 27 46.81 X F52
2025-09-25 13:53:10 C 05 49 16.028 +05 33 09.86 X F52
2025-09-25 14:11:39 C 05 49 16.336 +05 33 07.11 X F52
2025-09-25 14:30:16 C 05 49 16.646 +05 33 04.34 X F52
2025-09-30 14:26:20 C 05 51 03.318 +05 16 06.48 X F51
2025-09-30 14:45:04 C 05 51 03.522 +05 16 03.94 X F51
2025-09-30 15:04:12 C 05 51 03.744 +05 16 01.23 X F51
2025-10-31 13:36:18 C 05 46 59.969 +03 39 43.83 X F51
2025-10-31 13:56:00 C 05 46 59.480 +03 39 42.05 X F51
2025-10-31 14:15:41 C 05 46 58.995 +03 39 40.26 X F51
2025-12-01 09:06:36 C 05 19 34.403 +03 23 17.51 X F52
2025-12-01 09:23:30 C 05 19 33.641 +03 23 18.62 X F52
2025-12-01 09:57:15 C 05 19 32.034 +03 23 20.98 X F52
2025-12-15 08:36:05 C 05 04 13.851 +03 59 54.41 X F52
2025-12-15 08:50:58 C 05 04 13.172 +03 59 56.62 X F52