IAA RAS IAA Minor Planet Database

2021 DH2

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7581605215 ± 1.29e-04
Semi-major axis (a)2.1687017674 AU ± 9.16e-04
Inclination (i)5.31115690° ± 1.06e-03
Long. of Asc. Node (Ω)333.00566981° ± 8.15e-04
Arg. of Perihelion (ω)87.22666649° ± 1.65e-03
Mean Anomaly (M)189.50143506° ± 3.50e-01
Mean Motion (n)0.3086117989°/day ± 1.96e-04
Perihelion dist (q)0.52447770 AU ± 3.57e-04
Aphelion dist (Q)3.81292583 AU ± 1.63e-03
Orbital Period3.19374142 yr ± 2.02e-03
Physical Parameters
H (abs. magnitude)21.73
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.318″
Uncertainty3
Orbit TypeApollo
MOID0.003785 AU
Observations Used77
Oppositions1
Arc Total2021-2021
First Observation Used2021-02-22
Last Observation Used2021-03-23
Observations (85)
Date Type RA Dec Mag Band Observatory
2021-02-22 10:49:06 C 14 14 24.13 -19 21 14.9 – V 703
2021-02-22 10:56:45 C 14 14 13.82 -19 20 41.0 – V 703
2021-02-22 11:04:24 C 14 14 03.73 -19 20 06.3 – V 703
2021-02-22 15:16:54 C 14 08 37.36 -19 00 51.6 – V T08
2021-02-22 15:22:53 C 14 08 29.61 -19 00 24.2 – V T08
2021-02-22 15:30:51 C 14 08 19.29 -18 59 47.8 – V T08
2021-02-22 15:55:18 C 14 07 47.68 -18 57 55.2 – V T08
2021-02-23 02:17:47 C 13 55 10.90 -18 10 59.5 – V I93
2021-02-23 02:22:43 C 13 55 05.04 -18 10 37.3 – V I93
2021-02-23 02:27:51 C 13 54 58.87 -18 10 15.4 – V I93
2021-02-23 08:55:14 C 13 47 27.51 -17 38 45.2 – V 807
2021-02-23 08:57:31 C 13 47 24.89 -17 38 34.7 – V 807
2021-02-23 08:59:47 C 13 47 22.26 -17 38 24.2 – V 807
2021-02-23 09:01:53 C 13 47 19.83 -17 38 14.6 – V 807
2021-02-24 01:22:15 C 13 29 49.46 -16 25 30.4 – V L01
2021-02-24 01:26:44 C 13 29 44.89 -16 25 10.5 – V L01
2021-02-24 01:28:57 C 13 29 42.58 -16 25 00.9 – V L01
2021-02-24 01:33:30 C 13 29 37.84 -16 24 40.4 – V L01
2021-02-24 01:35:50 C 13 29 35.47 -16 24 30.4 – V L01
2021-02-24 04:35:29 C 13 26 38.56 -16 09 07.1 – V W88
2021-02-24 04:45:22 C 13 26 28.51 -16 08 23.6 – V W88
2021-02-24 07:13:00 C 13 24 03.56 -15 59 02.2 – V I52
2021-02-24 07:13:21 C 13 24 03.16 -15 58 58.9 – V I52
2021-02-24 07:13:42 C 13 24 02.79 -15 58 57.5 – V I52
2021-02-24 07:14:03 C 13 24 02.33 -15 58 55.3 – V I52
2021-02-25 07:32:20 C 13 02 14.42 -14 14 35.7 – V I52
2021-02-25 07:32:55 C 13 02 13.93 -14 14 33.7 – V I52
2021-02-25 07:33:28 C 13 02 13.46 -14 14 31.9 – V I52
2021-02-25 07:34:02 C 13 02 12.98 -14 14 29.1 – V I52
2021-02-25 08:11:01 C 13 01 41.87 -14 11 59.0 – V 703
2021-02-25 08:19:06 C 13 01 35.23 -14 11 26.2 – V 703
2021-02-25 08:27:12 C 13 01 28.43 -14 10 53.3 – V 703
2021-02-25 08:35:17 C 13 01 21.70 -14 10 19.7 – V 703
2021-02-26 07:50:23 C 12 43 49.34 -12 37 57.1 – V W88
2021-02-26 08:00:18 C 12 43 42.33 -12 37 20.2 – V W88
2021-03-03 06:14:01 C 11 46 56.83 -07 04 29.2 – u 807
2021-03-03 06:16:07 C 11 46 56.13 -07 04 24.7 – u 807
2021-03-03 06:18:31 C 11 46 55.31 -07 04 19.9 – u 807
2021-03-04 05:15:40 C 11 39 56.01 -06 20 16.0 – V I52
2021-03-04 05:16:16 C 11 39 55.83 -06 20 14.9 – V I52
2021-03-04 05:16:52 C 11 39 55.64 -06 20 13.7 – V I52
2021-03-04 05:17:29 C 11 39 55.46 -06 20 12.7 – V I52
2021-03-05 07:00:44 C 11 32 59.88 -05 35 15.6 – V 703
2021-03-05 07:08:59 C 11 32 57.76 -05 35 01.8 – V 703
2021-03-05 07:17:13 C 11 32 55.57 -05 34 48.4 – V 703
2021-03-05 07:25:27 C 11 32 53.38 -05 34 35.0 – V 703
2021-03-05 08:24:43 C 11 32 37.96 -05 32 57.8 – V I52
2021-03-05 08:25:20 C 11 32 37.78 -05 32 57.1 – V I52
2021-03-05 08:25:56 C 11 32 37.62 -05 32 56.3 – V I52
2021-03-06 01:02:59 C 11 28 39.39 -05 06 52.1 – V K87