2021 HK12

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6837230177 ± 9.59e-07
Semi-major axis (a)3.2871570519 AU ± 1.35e-07
Inclination (i)46.99267811° ± 3.60e-05
Long. of Asc. Node (Ω)187.08806970° ± 6.08e-05
Arg. of Perihelion (ω)168.81701355° ± 9.49e-05
Mean Anomaly (M)235.31694478° ± 4.79e-05
Mean Motion (n)0.1653794697°/day ± 1.02e-08
Perihelion dist (q)1.03965211 AU ± 3.15e-06
Aphelion dist (Q)5.53466199 AU ± 3.16e-06
Orbital Period5.95978621 yr ± 3.68e-07
Physical Parameters
H (abs. magnitude)17.66
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.322″
Uncertainty0
Orbit TypeAmor
MOID0.044234 AU
Observations Used76
Oppositions5
Arc Total2015-2021
First Observation Used2015-02-17
Last Observation Used2021-11-04
Observations (78)
Date Type RA Dec Mag Band Observatory
2021-06-11 03:15:52 C 14 46 11.17 +34 47 12.3 u H21
2021-06-11 03:26:29 C 14 46 10.74 +34 47 12.9 u H21
2021-06-11 03:35:13 C 14 46 10.39 +34 47 13.5 u H21
2021-06-12 02:58:21 C 14 45 14.81 +34 48 41.6 u H21
2021-06-12 03:08:18 C 14 45 14.40 +34 48 42.5 u H21
2021-06-12 03:17:50 C 14 45 14.03 +34 48 43.0 u H21
2021-06-17 06:14:00 C 14 40 44.720 +34 50 39.05 V F51
2021-06-18 06:04:57 C 14 39 57.185 +34 49 57.55 V F51
2021-06-18 06:11:31 C 14 39 56.907 +34 49 57.01 V F51
2021-06-23 09:47:34 C 14 36 16.098 +34 41 13.14 V F51
2021-06-23 10:00:44 C 14 36 15.770 +34 41 11.53 V F51
2021-06-23 10:13:51 C 14 36 15.383 +34 41 10.28 V F51
2021-06-25 06:52:56 C 14 35 07.04 +34 35 59.7 V 695
2021-06-25 07:08:46 C 14 35 06.63 +34 35 57.4 V 695
2021-06-25 07:24:35 C 14 35 06.24 +34 35 55.4 V 695
2021-06-27 06:43:01 C 14 34 00.61 +34 29 21.5 V 291
2021-06-27 07:12:38 C 14 33 59.93 +34 29 16.8 V 291
2021-06-27 07:42:16 C 14 33 59.26 +34 29 11.5 V 291
2021-06-28 07:33:19 C 14 33 28.94 +34 25 28.1 V 291
2021-06-28 08:00:42 C 14 33 28.31 +34 25 23.2 V 291
2021-10-29 01:44:57 C 17 13 39.49 +10 09 44.6 V I52
2021-10-29 01:48:15 C 17 13 39.91 +10 09 41.9 V I52
2021-10-29 01:51:34 C 17 13 40.34 +10 09 40.1 V I52
2021-10-29 01:54:53 C 17 13 40.72 +10 09 39.1 V I52
2021-11-04 01:35:29 C 17 32 54.45 +08 21 46.1 V G96
2021-11-04 01:41:35 C 17 32 55.32 +08 21 42.1 V G96
2021-11-04 01:47:41 C 17 32 56.14 +08 21 37.2 V G96
2021-11-04 01:53:48 C 17 32 57.00 +08 21 32.1 V G96