2021 HM

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4411661000
Semi-major axis (a)1.8019748000 AU
Inclination (i)4.92676000°
Long. of Asc. Node (Ω)208.73574000°
Arg. of Perihelion (ω)356.09109000°
Mean Anomaly (M)324.77855000°
Mean Motion (n)0.4074562700°/day
Perihelion dist (q)1.00700460 AU
Aphelion dist (Q)2.59694500 AU
Orbital Period2.41892870 yr
Physical Parameters
H (abs. magnitude)25.50
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.660″
Uncertainty5
Orbit TypeAmor
MOID0.003101 AU
Observations Used144
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-04-24
Observations (153)
Date Type RA Dec Mag Band Observatory
2021-04-19 10:27:43 C 16 35 45.04 -12 31 31.1 V T08
2021-04-19 10:35:03 C 16 36 14.68 -12 28 39.6 V T08
2021-04-19 10:43:41 C 16 36 49.17 -12 25 19.0 V T08
2021-04-19 11:01:36 C 16 38 00.45 -12 18 21.0 V T08
2021-04-19 15:41:27 C 16 55 24.02 -10 10 57.1 V 474
2021-04-19 15:43:38 C 16 55 31.21 -10 10 12.3 V 474
2021-04-19 15:44:21 C 16 55 33.60 -10 09 57.3 V 474
2021-04-19 15:45:49 C 16 55 38.39 -10 09 27.4 V 474
2021-04-19 19:18:50 C 17 07 08.22 -09 26 44.4 q 900
2021-04-19 19:20:03 C 17 07 11.68 -09 26 20.9 q 900
2021-04-19 19:21:16 C 17 07 15.12 -09 25 57.8 q 900
2021-04-19 19:22:30 C 17 07 18.67 -09 25 34.1 q 900
2021-04-20 02:01:16 C 17 26 10.08 -07 35 11.9 V 033
2021-04-20 02:01:45 C 17 26 11.20 -07 35 04.1 V 033
2021-04-20 02:02:15 C 17 26 12.26 -07 34 56.7 V 033
2021-04-20 02:02:50 C 17 26 13.62 -07 34 47.6 V 033
2021-04-20 03:06:53 C 17 28 30.39 -07 15 51.2 X L45
2021-04-20 03:12:29 C 17 28 42.27 -07 14 26.9 X L45
2021-04-20 03:19:00 C 17 28 55.87 -07 12 50.1 X L45
2021-04-20 08:30:35 C 17 40 57.33 -05 59 59.3 U I41
2021-04-20 08:31:05 C 17 40 58.25 -05 59 53.2 U I41
2021-04-20 09:37:04 C 17 42 53.10 -05 46 24.6 U I41
2021-04-20 09:37:34 C 17 42 53.94 -05 46 18.7 U I41
2021-04-20 10:54:51 C 17 44 54.88 -05 30 42.4 V I52
2021-04-20 10:55:02 C 17 44 55.18 -05 30 40.2 V I52
2021-04-20 10:55:13 C 17 44 55.49 -05 30 38.1 V I52
2021-04-20 10:55:25 C 17 44 55.78 -05 30 35.9 V I52
2021-04-20 12:50:28 C 17 48 37.18 -05 05 22.4 V T08
2021-04-20 12:56:28 C 17 48 46.01 -05 04 16.5 V T08
2021-04-20 13:03:07 C 17 48 55.80 -05 03 03.0 V T08
2021-04-21 01:11:43 C 18 06 23.68 -03 14 07.5 V 033
2021-04-21 01:12:12 C 18 06 24.21 -03 14 01.7 V 033
2021-04-21 01:12:42 C 18 06 24.75 -03 13 57.6 V 033
2021-04-21 01:13:22 C 18 06 25.49 -03 13 52.3 V 033
2021-04-22 12:23:08 C 18 35 16.70 +00 02 46.4 V T05
2021-04-22 12:26:26 C 18 35 18.12 +00 02 57.5 V T05
2021-04-22 12:34:20 C 18 35 21.54 +00 03 27.9 V T05
2021-04-22 12:48:50 C 18 35 27.69 +00 04 20.6 V T05
2021-04-23 02:31:13 C 18 41 55.87 +00 45 18.0 V K87
2021-04-23 02:40:05 C 18 41 58.92 +00 45 43.4 V K87
2021-04-23 02:40:56 C 18 41 58.80 +00 45 40.0 V 033
2021-04-23 02:41:40 C 18 41 59.06 +00 45 41.9 V 033
2021-04-23 02:42:25 C 18 41 59.31 +00 45 44.3 V 033
2021-04-23 02:48:55 C 18 42 02.01 +00 46 09.5 V K87
2021-04-23 10:28:43 C 18 45 11.32 +01 08 33.5 o 691
2021-04-23 10:34:50 C 18 45 13.00 +01 08 49.3 o 691
2021-04-23 10:39:34 C 18 45 14.29 +01 09 00.6 o 691
2021-04-24 01:54:58 C 18 50 20.84 +01 41 26.9 V 033
2021-04-24 01:56:02 C 18 50 21.08 +01 41 29.4 V 033
2021-04-24 01:57:07 C 18 50 21.35 +01 41 31.3 V 033