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
2016-03-30 08:32:13 C 12 27 40.67 -11 19 57.5 L W84
2016-03-30 08:36:45 C 12 27 40.49 -11 19 56.4 L W84
2016-03-30 08:41:17 C 12 27 40.31 -11 19 55.2 L W84
2016-03-31 09:42:02 C 12 26 42.347 -11 13 51.59 L F51
2016-03-31 10:00:21 C 12 26 41.621 -11 13 47.14 L F51
2016-03-31 10:18:30 C 12 26 40.898 -11 13 42.68 L F51
2016-03-31 10:36:36 C 12 26 40.176 -11 13 38.15 L F51
2016-04-02 08:42:15 C 12 24 53.78 -11 02 14.8 q G96
2016-04-02 08:52:42 C 12 24 53.42 -11 02 12.0 q G96
2016-04-02 09:03:10 C 12 24 52.97 -11 02 09.3 q G96
2016-04-02 09:13:38 C 12 24 52.57 -11 02 06.8 q G96
2020-01-20 14:29:12 C 12 27 07.171 -09 06 28.52 U F52
2020-01-20 14:45:58 C 12 27 07.155 -09 06 30.72 U F52
2020-01-20 15:02:50 C 12 27 07.123 -09 06 32.72 U F52
2020-01-20 15:19:41 C 12 27 07.098 -09 06 34.63 U F52
2020-01-25 13:17:41 C 12 26 45.620 -09 18 53.31 U F52
2020-01-25 13:34:37 C 12 26 45.507 -09 18 54.75 U F52
2020-01-25 14:08:33 C 12 26 45.267 -09 18 57.88 U F52
2020-02-04 13:58:47 C 12 24 00.487 -09 30 51.47 U F51
2020-02-04 14:14:06 C 12 24 00.210 -09 30 51.76 U F51
2020-02-04 14:29:30 C 12 23 59.916 -09 30 51.83 U F51
2020-03-16 07:16:33 C 11 50 53.85 -07 17 34.7 V G96
2020-03-16 07:24:55 C 11 50 53.50 -07 17 32.5 V G96
2020-03-16 07:33:16 C 11 50 53.11 -07 17 30.3 V G96
2020-03-16 07:41:40 C 11 50 52.76 -07 17 28.4 V G96
2020-04-03 04:50:14 C 11 34 04.42 -05 25 11.0 V G96
2020-04-03 04:58:28 C 11 34 04.10 -05 25 09.4 V G96
2020-04-03 05:06:44 C 11 34 03.81 -05 25 07.1 V G96
2020-04-03 05:15:00 C 11 34 03.51 -05 25 04.7 V G96
2020-05-17 06:23:58 C 11 18 24.157 -02 31 04.96 U F52
2020-05-17 06:41:49 C 11 18 24.230 -02 31 03.91 U F52
2020-05-17 06:59:37 C 11 18 24.298 -02 31 03.06 U F52
2021-04-07 12:41:46 C 15 01 23.211 -24 04 36.47 U F51
2021-04-07 12:57:51 C 15 01 22.727 -24 04 35.28 U F51
2021-04-07 13:13:53 C 15 01 22.284 -24 04 33.93 U F51
2021-04-07 13:29:56 C 15 01 21.802 -24 04 32.52 U F51
2021-06-08 06:47:29 C 14 13 24.773 -20 05 03.43 U F51
2021-06-08 07:03:17 C 14 13 24.431 -20 05 00.48 U F51
2021-06-08 07:19:05 C 14 13 24.078 -20 04 57.95 U F51
2021-06-08 07:34:55 C 14 13 23.741 -20 04 55.30 U F51
2023-09-25 11:53:37 C 09 19 26.152 +15 42 35.50 V G96
2023-09-25 11:57:43 C 09 19 26.544 +15 42 33.41 V G96
2023-09-25 12:01:49 C 09 19 26.972 +15 42 30.96 V G96
2023-09-25 12:05:55 C 09 19 27.376 +15 42 28.80 V G96
2023-10-15 12:05:06 C 10 03 29.416 +11 11 00.49 V V00
2023-10-15 12:12:08 C 10 03 29.992 +11 10 56.68 V V00
2023-10-15 12:26:14 C 10 03 31.219 +11 10 48.58 V V00
2023-10-16 11:57:54 C 10 05 28.590 +10 57 38.45 V V00
2023-10-16 12:05:51 C 10 05 29.231 +10 57 34.02 V V00
2023-10-16 12:13:46 C 10 05 29.890 +10 57 29.74 V V00