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
2003-02-06 11:17:19 C 10 57 40.87 +00 09 49.0 c 670
2003-02-08 09:25:23 C 10 55 39.01 +00 16 36.7 19.8 c 608
2003-02-08 09:40:32 C 10 55 38.35 +00 16 38.3 20.3 c 608
2003-02-08 09:55:42 C 10 55 37.61 +00 16 41.1 20.6 c 608
2003-02-20 07:35:48 C 10 41 59.64 +01 11 20.5 c 649
2003-02-20 07:44:19 C 10 41 59.21 +01 11 22.4 c 649
2003-02-20 07:52:35 C 10 41 58.85 +01 11 23.5 c 649
2003-02-22 01:26:21 C 10 39 56.24 +01 20 44.3 c 176
2003-02-22 01:33:00 C 10 39 55.89 +01 20 46.0 c 176
2003-02-22 01:40:50 C 10 39 55.49 +01 20 47.9 c 176
2003-02-22 01:47:01 C 10 39 55.17 +01 20 49.4 c 176
2003-03-06 05:26:22 C 10 26 09.99 +02 30 37.6 c 699
2003-03-06 05:47:57 C 10 26 09.00 +02 30 42.6 c 699
2003-03-06 06:09:28 C 10 26 08.09 +02 30 47.3 c 699
2003-03-06 06:34:48 C 10 26 06.88 +02 30 53.8 c 699
2003-03-06 12:53:40 C 10 25 50.21 +02 32 32.6 c 474
2003-03-06 13:00:09 C 10 25 49.92 +02 32 34.0 c 474
2003-03-07 06:09:48 C 10 25 05.38 +02 36 34.9 20.0 c 704
2003-03-07 06:33:45 C 10 25 04.29 +02 36 41.7 c 711
2003-03-07 06:48:55 C 10 25 03.61 +02 36 44.7 19.5 c 704
2003-03-07 06:52:18 C 10 25 03.42 +02 36 46.0 c 711
2003-03-07 07:07:59 C 10 25 02.77 +02 36 50.0 19.4 c 704
2003-03-07 07:11:00 C 10 25 02.64 +02 36 50.8 c 711
2003-03-09 06:37:31 C 10 23 02.52 +02 48 11.7 19.3 c 704
2003-03-09 06:56:35 C 10 23 01.67 +02 48 14.9 18.9 c 704
2003-03-09 07:15:50 C 10 23 00.88 +02 48 19.5 19.3 c 704
2003-04-19 13:30:51 C 10 04 34.65 +05 17 29.8 c 413
2003-04-19 13:51:56 C 10 04 34.75 +05 17 31.3 c 413
2003-04-20 19:44:10 C 10 04 44.27 +05 18 31.9 c 540
2003-04-20 21:21:29 C 10 04 44.77 +05 18 34.9 c 540
2004-05-13 05:50:23 C 13 48 55.78 -18 44 28.1 d 291
2004-05-13 05:56:08 C 13 48 55.58 -18 44 27.0 d 291
2004-05-13 06:01:49 C 13 48 55.42 -18 44 25.6 d 291
2004-07-21 07:07:04 C 13 37 56.213 -15 51 08.14 o 568
2004-07-21 07:14:39 C 13 37 56.346 -15 51 08.27 o 568
2004-07-22 06:35:33 C 13 38 19.998 -15 51 49.77 o 568
2004-07-22 06:44:04 C 13 38 20.145 -15 51 50.10 o 568
2005-07-06 12:32:42 C 16 18 32.56 -25 40 14.9 r 413
2005-07-06 12:47:16 C 16 18 32.13 -25 40 13.4 r 413
2005-07-09 06:40:54 C 16 16 43.743 -25 31 36.31 o 695
2005-07-10 06:02:33 C 16 16 07.684 -25 28 34.89 o 695
2005-07-10 06:09:18 C 16 16 07.512 -25 28 34.04 o 695
2005-07-10 06:15:56 C 16 16 07.345 -25 28 33.19 o 695
2006-08-23 03:23:46 C 04 20 11.59 +28 40 12.4 r A14
2006-08-23 03:36:13 C 04 20 13.68 +28 40 18.1 r A14
2006-08-23 03:49:50 C 04 20 15.96 +28 40 25.0 r A14
2006-08-24 09:58:15 C 04 25 22.68 +28 53 37.9 18.5 c 704
2006-08-24 10:30:03 C 04 25 28.03 +28 53 52.1 19.0 c 704
2006-08-24 10:45:55 C 04 25 30.57 +28 53 58.9 19.6 c 704
2006-08-24 11:01:56 C 04 25 33.34 +28 54 05.9 19.3 c 704