143381 (2003 BC21)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5106491276 ± 1.39e-08
Semi-major axis (a)2.5962495660 AU ± 7.26e-09
Inclination (i)5.47484963° ± 2.26e-06
Long. of Asc. Node (Ω)292.10179296° ± 2.11e-05
Arg. of Perihelion (ω)114.10977804° ± 2.21e-05
Mean Anomaly (M)206.50088096° ± 7.08e-06
Mean Motion (n)0.2356094040°/day ± 9.88e-10
Perihelion dist (q)1.27047699 AU ± 3.64e-08
Aphelion dist (Q)3.92202214 AU ± 3.78e-08
Orbital Period4.18330621 yr ± 1.76e-08
Physical Parameters
H (abs. magnitude)16.21
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.271″
Uncertainty0
Orbit TypeAmor
MOID0.295254 AU
Observations Used933
Gaia Obs Used39
Oppositions25
Arc Total1982-2015
First Observation Used1982-04-13
Last Observation Used2025-05-19
Observations (1003)
Date Type RA Dec Mag Band Observatory
2012-04-01 07:50:19 C 13 10 33.74 -15 39 46.6 r G96
2012-04-01 08:00:23 C 13 10 33.31 -15 39 45.4 r G96
2012-04-16 09:40:07 C 12 57 10.433 -14 18 50.41 L F51
2012-04-16 09:59:11 C 12 57 09.746 -14 18 46.00 L F51
2012-04-16 10:18:10 C 12 57 09.039 -14 18 41.45 L F51
2014-06-20 11:37:52 C 20 25 47.549 -19 34 17.57 L F51
2014-06-20 11:55:05 C 20 25 47.159 -19 34 17.47 L F51
2014-06-20 12:34:45 C 20 25 46.271 -19 34 17.19 L F51
2014-06-20 12:51:59 C 20 25 45.882 -19 34 16.98 L F51
2014-06-25 09:26:33 C 20 22 57.24 -19 34 04.6 q G96
2014-06-25 09:35:19 C 20 22 57.03 -19 34 05.0 q G96
2014-06-25 09:44:04 C 20 22 56.78 -19 34 05.0 q G96
2014-06-25 09:52:50 C 20 22 56.51 -19 34 05.2 q G96
2014-06-26 11:48:19 C 20 22 13.040 -19 34 13.88 L F51
2014-06-26 12:05:54 C 20 22 12.506 -19 34 14.00 L F51
2014-06-26 12:41:01 C 20 22 11.436 -19 34 14.25 L F51
2014-07-08 10:22:30 C 20 11 53.086 -19 39 53.18 L F51
2014-07-08 10:39:44 C 20 11 52.311 -19 39 53.75 L F51
2014-07-08 10:57:00 C 20 11 51.533 -19 39 54.21 L F51
2014-07-08 11:14:17 C 20 11 50.766 -19 39 54.86 L F51
2014-08-13 07:27:27 C 19 28 09.666 -19 57 09.94 L F51
2014-08-13 07:43:44 C 19 28 08.891 -19 57 09.80 L F51
2014-08-14 07:25:06 C 19 27 05.282 -19 56 51.37 L F51
2014-08-14 07:41:26 C 19 27 04.524 -19 56 51.14 L F51
2014-08-14 07:57:45 C 19 27 03.770 -19 56 50.93 L F51
2014-08-14 08:14:09 C 19 27 03.013 -19 56 50.67 L F51
2014-11-09 04:54:56 C 20 13 21.566 -15 42 55.23 L F51
2014-11-09 05:02:33 C 20 13 22.161 -15 42 52.95 L F51
2014-11-09 05:10:10 C 20 13 22.767 -15 42 50.64 L F51
2014-11-09 05:17:46 C 20 13 23.364 -15 42 48.43 L F51
2014-11-30 01:30:38 C 20 58 08.86 -12 40 51.8 q 703
2014-11-30 01:35:46 C 20 58 09.41 -12 40 49.0 q G96
2014-11-30 01:40:45 C 20 58 09.89 -12 40 46.3 q 703
2014-11-30 01:44:31 C 20 58 10.26 -12 40 45.3 q G96
2014-11-30 01:50:53 C 20 58 10.81 -12 40 41.7 q 703
2014-11-30 01:53:17 C 20 58 11.12 -12 40 41.4 q G96
2014-11-30 02:00:59 C 20 58 11.78 -12 40 37.9 q 703
2014-11-30 02:02:04 C 20 58 11.96 -12 40 37.3 q G96
2016-03-02 11:24:00 C 12 52 20.549 -13 25 29.48 L F51
2016-03-02 11:41:05 C 12 52 19.990 -13 25 27.40 L F51
2016-03-02 11:57:52 C 12 52 19.470 -13 25 25.70 L F51
2016-03-12 10:43:57 C 12 44 15.898 -12 51 31.65 L F51
2016-03-12 10:47:39 C 12 44 15.770 -12 51 31.00 L F51
2016-03-12 11:02:55 C 12 44 15.194 -12 51 28.32 L F51
2016-03-12 11:06:39 C 12 44 15.040 -12 51 27.82 L F51
2016-03-12 11:21:53 C 12 44 14.469 -12 51 25.05 L F51
2016-03-12 11:25:35 C 12 44 14.327 -12 51 24.49 L F51
2016-03-12 11:44:37 C 12 44 13.620 -12 51 21.08 L F51
2016-03-30 08:23:05 C 12 27 41.03 -11 19 59.8 L W84
2016-03-30 08:27:40 C 12 27 40.85 -11 19 58.6 L W84