2021 HB

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3603247837 ± 2.00e+00
Semi-major axis (a)1.3819635340 AU ± 3.00e+00
Inclination (i)26.81223469° ± 4.00e+00
Long. of Asc. Node (Ω)206.24933050° ± 5.00e+00
Arg. of Perihelion (ω)60.90462373° ± 6.00e+00
Mean Anomaly (M)269.70700690° ± 6.19e-01
Mean Motion (n)0.6065489200°/day ± 1.98e+00
Perihelion dist (q)0.88461600 AU ± 3.36e+00
Aphelion dist (Q)1.87970720 AU ± 4.93e+00
Orbital Period1.62494340 yr ± 5.29e+00
Physical Parameters
H (abs. magnitude)26.74
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual1.446″
Uncertainty3
Orbit TypeApollo
MOID0.016398 AU
Observations Used42
Oppositions1
Arc Total2021-2021
First Observation Used
Last Observation Used2021-04-17
Observations (42)
Date Type RA Dec Mag Band Observatory
2021-04-16 09:14:08 C 14 53 11.50 -07 04 48.3 U I41
2021-04-16 09:14:37 C 14 53 12.31 -07 04 18.3 U I41
2021-04-16 09:18:10 C 14 53 18.34 -07 00 27.9 U I41
2021-04-16 09:18:41 C 14 53 19.19 -06 59 54.6 U I41
2021-04-16 09:39:48 C 14 53 54.79 -06 37 07.3 U I41
2021-04-16 09:40:17 C 14 53 55.62 -06 36 35.1 U I41
2021-04-16 09:51:07 C 14 54 14.08 -06 24 55.3 U I41
2021-04-16 10:02:47 C 14 54 33.95 -06 12 14.8 U I41
2021-04-16 10:03:17 C 14 54 34.82 -06 11 40.9 U I41
2021-04-16 19:39:12 C 15 13 14.81 +04 58 34.4 V N82
2021-04-16 19:42:47 C 15 13 21.80 +05 02 59.6 V N82
2021-04-16 19:46:22 C 15 13 28.81 +05 07 23.1 V N82
2021-04-16 22:21:11 C 15 19 03.90 +08 19 31.3 V 033
2021-04-16 22:21:30 C 15 19 04.54 +08 19 55.0 V 033
2021-04-16 22:21:51 C 15 19 05.28 +08 20 21.8 V 033
2021-04-16 22:34:00 C 15 19 33.71 +08 35 25.3 V J95
2021-04-16 22:40:28 C 15 19 46.97 +08 43 32.4 V J95
2021-04-16 22:44:17 C 15 19 53.20 +08 49 16.5 V K63
2021-04-16 22:46:38 C 15 19 57.99 +08 52 14.0 V K63
2021-04-16 22:49:09 C 15 20 04.84 +08 54 26.0 V J95
2021-04-16 22:52:14 C 15 20 09.42 +08 59 15.6 V K63
2021-04-16 23:14:57 C 15 20 58.04 +09 26 53.2 V J95
2021-04-16 23:22:53 C 15 21 14.12 +09 36 53.5 V Z80
2021-04-16 23:25:59 C 15 21 20.83 +09 40 47.5 V J95
2021-04-16 23:43:06 C 15 21 56.23 +10 02 21.5 V J95
2021-04-16 23:44:30 C 15 21 58.68 +10 04 07.0 V Z80
2021-04-16 23:48:29 C 15 22 06.41 +10 08 55.1 V Z99
2021-04-16 23:49:52 C 15 22 11.83 +10 11 48.8 X 958
2021-04-16 23:49:57 C 15 22 09.44 +10 10 46.6 V Z99
2021-04-16 23:51:25 C 15 22 12.52 +10 12 38.0 V Z99
2021-04-16 23:53:10 C 15 22 12.43 +10 15 46.4 V 595
2021-04-16 23:57:17 C 15 22 27.08 +10 21 10.9 X 958
2021-04-16 23:58:23 C 15 22 23.10 +10 22 22.0 V 595
2021-04-17 00:04:45 C 15 22 42.43 +10 30 36.8 X 958
2021-04-17 00:13:17 C 15 22 53.69 +10 41 13.4 V L01
2021-04-17 00:14:31 C 15 22 56.25 +10 42 46.9 V L01
2021-04-17 00:15:39 C 15 22 58.57 +10 44 12.5 V L01
2021-04-17 00:16:59 C 15 23 01.33 +10 45 54.5 V L01
2021-04-17 00:22:53 C 15 23 13.55 +10 53 16.3 V 595
2021-04-17 00:33:58 C 15 23 36.40 +11 07 14.9 V 595
2021-04-17 00:39:57 C 15 23 50.80 +11 14 48.2 V 204
2021-04-17 00:52:31 C 15 24 16.80 +11 30 40.3 V 204