2021 BK1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7210248794
Semi-major axis (a)1.1092175399 AU
Inclination (i)25.58520877°
Long. of Asc. Node (Ω)300.26267035° ± 5.00e+00
Arg. of Perihelion (ω)309.53067104° ± 6.00e+00
Mean Anomaly (M)9.25148582°
Mean Motion (n)0.8436822100°/day
Perihelion dist (q)0.30944410 AU
Aphelion dist (Q)1.90899130 AU
Orbital Period1.16822150 yr
Physical Parameters
H (abs. magnitude)26.35
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.365″
Uncertainty
Orbit TypeApollo
MOID0.000024 AU
Observations Used37
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-01-20
Observations (37)
Date Type RA Dec Mag Band Observatory
2021-01-17 10:14:49 C 10 06 30.09 +34 59 31.6 V G96
2021-01-17 10:22:14 C 10 06 28.25 +34 59 44.5 V G96
2021-01-17 10:29:39 C 10 06 26.37 +34 59 57.8 V G96
2021-01-17 10:37:04 C 10 06 24.50 +35 00 09.6 V G96
2021-01-17 12:40:47 C 10 05 53.24 +35 03 37.7 V I52
2021-01-17 12:42:36 C 10 05 52.79 +35 03 40.9 V I52
2021-01-17 12:44:25 C 10 05 52.32 +35 03 43.9 V I52
2021-01-17 12:46:14 C 10 05 51.82 +35 03 46.9 V I52
2021-01-18 00:28:43 C 10 03 09.34 +35 30 03.4 V I93
2021-01-18 00:34:21 C 10 03 07.36 +35 30 19.9 V I93
2021-01-18 00:39:59 C 10 03 05.32 +35 30 36.1 V I93
2021-01-18 06:34:08 C 10 01 11.42 +35 48 39.0 V I52
2021-01-18 06:34:45 C 10 01 11.14 +35 48 41.1 V I52
2021-01-18 06:35:21 C 10 01 10.87 +35 48 43.7 V I52
2021-01-18 06:35:57 C 10 01 10.63 +35 48 45.3 V I52
2021-01-18 06:37:20 C 10 01 05.63 +35 48 43.7 V H36
2021-01-18 06:45:02 C 10 01 02.24 +35 49 11.6 V H36
2021-01-18 06:52:45 C 10 00 58.87 +35 49 38.0 V H36
2021-01-18 07:00:27 C 10 00 55.37 +35 50 05.7 V H36
2021-01-18 07:07:40 C 10 00 52.11 +35 50 31.2 V H36
2021-01-18 15:22:43 C 09 57 14.71 +36 21 15.5 V N88
2021-01-18 15:23:15 C 09 57 14.42 +36 21 17.5 V N88
2021-01-18 15:23:47 C 09 57 14.23 +36 21 20.8 V N88
2021-01-18 15:24:20 C 09 57 13.87 +36 21 23.9 V N88
2021-01-18 20:51:55 C 09 53 48.55 +36 49 44.2 V 595
2021-01-18 21:18:26 C 09 53 28.37 +36 52 34.0 V 595
2021-01-18 21:35:00 C 09 53 15.40 +36 54 21.8 V 595
2021-01-18 22:59:51 C 09 52 05.85 +37 03 53.6 V K63
2021-01-18 23:05:52 C 09 52 00.58 +37 04 35.1 V K63
2021-01-19 00:18:05 C 09 50 52.69 +37 12 52.8 V L01
2021-01-19 00:19:13 C 09 50 51.60 +37 13 00.5 V L01
2021-01-19 00:20:20 C 09 50 50.54 +37 13 08.2 V L01
2021-01-19 00:22:34 C 09 50 48.41 +37 13 24.2 V L01
2021-01-19 00:24:14 C 09 50 46.79 +37 13 36.3 V L01
2021-01-20 05:18:22 C 07 42 34.06 +47 07 59.0 V 033
2021-01-20 05:18:36 C 07 42 29.14 +47 08 08.3 V 033
2021-01-20 05:18:51 C 07 42 24.20 +47 08 17.3 V 033