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
2015-02-17 14:05:40 C 15 30 42.576 +07 11 57.84 V F51
2015-02-17 14:23:21 C 15 30 42.976 +07 12 06.09 V F51
2015-02-17 14:41:12 C 15 30 43.300 +07 12 13.64 V F51
2015-02-17 14:59:01 C 15 30 43.678 +07 12 21.79 V F51
2015-02-18 14:03:53 C 15 31 12.303 +07 22 37.92 V F51
2015-02-18 14:21:36 C 15 31 12.653 +07 22 45.92 V F51
2015-05-25 06:36:35 C 14 48 07.308 +30 32 17.42 V F51
2015-05-25 06:54:50 C 14 48 06.447 +30 32 22.72 V F51
2015-05-25 07:13:02 C 14 48 05.590 +30 32 28.63 V F51
2015-05-25 07:31:08 C 14 48 04.756 +30 32 33.69 V F51
2015-05-26 06:30:53 C 14 47 01.600 +30 39 14.24 V F51
2015-05-26 06:49:05 C 14 47 00.703 +30 39 19.76 V F51
2015-05-26 07:07:16 C 14 46 59.845 +30 39 24.81 V F51
2015-05-26 07:25:24 C 14 46 59.038 +30 39 29.85 V F51
2015-06-04 09:58:58 C 14 37 30.569 +31 25 51.10 V F51
2021-04-17 09:11:06 C 15 43 45.38 +23 57 44.4 V G96
2021-04-17 09:19:28 C 15 43 45.21 +23 57 51.9 V G96
2021-04-17 09:27:48 C 15 43 44.95 +23 57 58.1 V G96
2021-04-17 14:10:01 C 15 43 36.924 +24 01 42.30 U F51
2021-04-17 14:22:05 C 15 43 36.580 +24 01 51.89 U F51
2021-04-17 14:34:09 C 15 43 36.186 +24 02 01.41 U F51
2021-05-04 08:28:59 C 15 29 02.29 +29 00 16.6 V G96
2021-05-04 08:36:28 C 15 29 01.94 +29 00 21.5 V G96
2021-05-04 08:43:56 C 15 29 01.56 +29 00 26.0 V G96
2021-05-17 07:17:38 C 15 14 20.41 +32 01 38.5 V G96
2021-05-17 07:25:06 C 15 14 20.05 +32 01 41.3 V G96
2021-05-29 10:45:17 C 14 59 50.606 +33 54 05.30 V F51
2021-05-29 10:56:27 C 14 59 50.052 +33 54 08.50 V F51
2021-05-29 11:07:39 C 14 59 49.486 +33 54 11.60 V F51
2021-05-29 11:18:49 C 14 59 48.941 +33 54 14.69 V F51
2021-05-30 06:43:48 C 14 58 52.76 +33 59 35.0 V G96
2021-05-30 06:51:09 C 14 58 52.42 +33 59 36.7 V G96
2021-05-30 06:58:30 C 14 58 52.03 +33 59 38.0 V G96
2021-05-30 07:05:50 C 14 58 51.64 +33 59 40.6 V G96
2021-05-30 09:22:05 C 14 58 44.93 +34 00 15.9 V I52
2021-05-30 09:30:34 C 14 58 44.47 +34 00 17.1 V I52
2021-05-30 09:39:02 C 14 58 44.12 +34 00 19.7 V I52
2021-05-31 07:52:56 C 14 57 40.28 +34 06 04.9 V I52
2021-05-31 08:03:40 C 14 57 39.75 +34 06 07.3 V I52
2021-05-31 08:14:20 C 14 57 39.38 +34 06 09.0 V I52
2021-06-04 02:32:08 C 14 53 26.45 +34 25 46.9 u H21
2021-06-04 02:44:12 C 14 53 25.89 +34 25 49.2 u H21
2021-06-04 02:57:50 C 14 53 25.27 +34 25 51.6 u H21
2021-06-05 03:23:06 C 14 52 18.90 +34 30 10.7 u H21
2021-06-05 03:38:51 C 14 52 18.19 +34 30 13.4 u H21
2021-06-05 03:44:53 C 14 52 17.91 +34 30 14.3 u H21
2021-06-10 05:47:46 C 14 47 03.24 +34 45 34.6 V G96
2021-06-10 05:55:07 C 14 47 02.88 +34 45 34.7 V G96
2021-06-10 06:02:28 C 14 47 02.56 +34 45 35.2 V G96
2021-06-10 06:09:49 C 14 47 02.25 +34 45 36.3 V G96