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
2023-10-16 12:21:42 C 10 05 30.548 +10 57 25.24 V V00
2023-10-21 11:52:17 C 10 15 09.814 +09 51 02.81 V G96
2023-10-21 12:00:50 C 10 15 10.472 +09 50 58.42 V G96
2023-10-21 12:09:23 C 10 15 11.146 +09 50 53.81 V G96
2023-10-21 12:17:57 C 10 15 11.819 +09 50 48.84 V G96
2023-11-13 11:21:19 C 10 53 37.360 +05 02 31.96 V V00
2023-11-13 11:29:14 C 10 53 37.806 +05 02 28.21 V V00
2023-11-13 11:37:09 C 10 53 38.296 +05 02 24.29 V V00
2023-11-13 11:45:05 C 10 53 38.764 +05 02 20.44 V V00
2023-12-18 15:14:20 C 11 31 16.470 -00 43 08.76 X F51
2023-12-18 15:26:30 C 11 31 16.784 -00 43 12.61 X F51
2023-12-18 15:38:40 C 11 31 17.095 -00 43 16.41 X F51
2024-02-04 12:55:09 C 11 27 24.307 -03 12 05.44 X F52
2024-02-04 13:11:11 C 11 27 23.737 -03 12 04.15 X F52
2024-02-04 13:27:10 C 11 27 23.171 -03 12 02.78 X F52
2024-02-18 11:14:41 C 11 13 56.563 -02 25 25.33 X F52
2024-02-18 11:30:36 C 11 13 55.818 -02 25 22.23 X F52
2024-02-18 11:46:30 C 11 13 55.079 -02 25 19.18 X F52
2024-02-18 12:02:22 C 11 13 54.336 -02 25 16.11 X F52
2024-03-02 11:33:35 C 10 59 20.787 -01 14 56.12 X F51
2024-03-02 11:50:55 C 10 59 19.948 -01 14 51.76 X F51
2024-03-02 12:08:12 C 10 59 19.116 -01 14 47.44 X F51
2024-03-06 16:36:33 C 10 54 40.555 -00 49 09.73 O18
2024-03-06 16:38:35 C 10 54 40.470 -00 49 09.13 O18
2024-03-06 17:46:33 C 10 54 37.287 -00 48 51.62 O18
2024-03-07 08:07:33 C 10 53 58.182 -00 45 08.35 V G96
2024-03-07 08:15:48 C 10 53 57.800 -00 45 05.98 V G96
2024-03-07 08:23:57 C 10 53 57.419 -00 45 03.89 V G96
2024-03-07 08:32:09 C 10 53 57.030 -00 45 01.62 V G96
2024-03-19 06:09:49 C 10 42 06.977 +00 28 16.39 V V00
2024-03-19 06:17:55 C 10 42 06.667 +00 28 18.41 V V00
2024-03-19 06:25:59 C 10 42 06.361 +00 28 20.32 V V00
2024-03-19 06:34:04 C 10 42 06.055 +00 28 22.40 V V00
2024-03-19 15:31:10 C 10 41 46.497 +00 30 34.20 O18
2024-03-19 16:32:42 C 10 41 44.195 +00 30 49.23 O18
2024-03-21 14:33:15 C 10 40 06.440 +00 41 59.24 O18
2024-03-21 14:34:43 C 10 40 06.381 +00 41 59.26 O18
2024-03-28 15:47:38 C 10 34 51.808 +01 20 18.64 O18
2024-03-28 18:05:07 C 10 34 47.931 +01 20 47.81 O18
2024-03-29 14:53:22 C 10 34 14.792 +01 25 09.35 O18
2024-03-29 15:59:54 C 10 34 12.971 +01 25 23.20 O18
2024-03-30 14:00:30 C 10 33 39.148 +01 29 54.26 O18
2024-03-30 14:06:37 C 10 33 39.008 +01 29 55.52 O18
2024-03-30 15:16:39 C 10 33 37.164 +01 30 09.64 O18
2024-03-30 16:23:27 C 10 33 35.419 +01 30 23.03 O18
2024-03-30 16:29:31 C 10 33 35.259 +01 30 24.26 O18
2024-03-31 14:10:17 C 10 33 03.435 +01 34 45.17 O18
2024-03-31 15:28:34 C 10 33 01.468 +01 35 00.53 O18
2024-03-31 16:35:19 C 10 32 59.787 +01 35 13.98 O18
2024-04-01 07:12:10 C 10 32 39.207 +01 38 07.02 X F51