2021 DK

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6281312179 ± 4.64e-08
Semi-major axis (a)1.5345947055 AU ± 2.83e-08
Inclination (i)7.83297429° ± 1.03e-05
Long. of Asc. Node (Ω)181.40779371° ± 2.93e-05
Arg. of Perihelion (ω)230.70161926° ± 3.20e-05
Mean Anomaly (M)211.49824250° ± 2.35e-05
Mean Motion (n)0.5184677327°/day ± 1.43e-08
Perihelion dist (q)0.57066786 AU ± 7.20e-08
Aphelion dist (Q)2.49852155 AU ± 8.48e-08
Orbital Period1.90103688 yr ± 5.26e-08
Physical Parameters
H (abs. magnitude)21.35
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.283″
Uncertainty0
Orbit TypeApollo
MOID0.074371 AU
Observations Used108
Oppositions1
Arc Total2021-2024
First Observation Used2021-02-16
Last Observation Used2024-08-05
Observations (112)
Date Type RA Dec Mag Band Observatory
2021-02-16 13:05:01 C 13 03 50.44 -31 35 08.2 V T05
2021-02-16 13:07:39 C 13 03 49.22 -31 34 55.9 V T05
2021-02-16 13:12:15 C 13 03 47.30 -31 34 34.1 V T05
2021-02-16 13:19:30 C 13 03 44.23 -31 34 00.1 V T05
2021-02-17 10:09:24 C 12 55 22.95 -29 54 59.0 V I52
2021-02-17 10:10:13 C 12 55 22.71 -29 54 55.9 V I52
2021-02-17 10:11:02 C 12 55 22.34 -29 54 51.0 V I52
2021-02-17 10:11:50 C 12 55 21.97 -29 54 46.2 V I52
2021-02-17 15:01:37 C 12 53 30.26 -29 30 57.5 V 474
2021-02-17 15:03:18 C 12 53 29.61 -29 30 49.3 V 474
2021-02-17 15:06:11 C 12 53 28.47 -29 30 35.6 V 474
2021-02-17 15:09:04 C 12 53 27.31 -29 30 22.0 V 474
2021-02-17 22:51:09 C 12 50 34.08 -28 54 10.6 V 221
2021-02-17 23:00:49 C 12 50 30.34 -28 53 25.6 V 221
2021-02-17 23:10:22 C 12 50 26.68 -28 52 41.4 V 221
2021-02-17 23:19:59 C 12 50 22.95 -28 51 56.9 V 221
2021-02-17 23:29:33 C 12 50 19.24 -28 51 12.1 V 221
2021-02-17 23:39:06 C 12 50 15.55 -28 50 27.8 V 221
2021-02-17 23:48:39 C 12 50 11.86 -28 49 43.7 V 221
2021-02-17 23:58:13 C 12 50 08.11 -28 48 58.3 V 221
2021-02-18 00:07:57 C 12 50 04.35 -28 48 13.4 V 221
2021-02-18 15:16:51 C 12 44 30.25 -27 36 56.5 V 474
2021-02-18 15:18:35 C 12 44 29.60 -27 36 48.6 V 474
2021-02-18 15:20:19 C 12 44 28.97 -27 36 40.3 V 474
2021-02-18 15:22:02 C 12 44 28.33 -27 36 32.2 V 474
2021-02-19 14:28:31 C 12 36 28.29 -25 49 45.2 V 474
2021-02-19 14:29:33 C 12 36 27.93 -25 49 40.4 V 474
2021-02-19 14:30:35 C 12 36 27.56 -25 49 35.7 V 474
2021-02-19 14:31:37 C 12 36 27.20 -25 49 30.9 V 474
2021-02-20 11:39:19 C 12 29 32.82 -24 14 49.8 V I52
2021-02-20 11:40:34 C 12 29 32.39 -24 14 43.5 V I52
2021-02-20 11:40:50 C 12 29 32.34 -24 14 42.4 V I52
2021-02-20 11:45:06 C 12 29 30.93 -24 14 23.3 V I52
2021-02-20 14:26:58 C 12 28 41.87 -24 01 26.8 V 474
2021-02-20 14:28:16 C 12 28 41.45 -24 01 20.9 V 474
2021-02-20 14:29:35 C 12 28 41.03 -24 01 14.9 V 474
2021-02-20 14:30:53 C 12 28 40.59 -24 01 09.2 V 474
2021-02-22 07:33:24 C 12 16 33.22 -21 03 44.9 V I52
2021-02-22 07:33:41 C 12 16 33.15 -21 03 43.9 V I52
2021-02-22 07:35:31 C 12 16 32.55 -21 03 36.1 V I52
2021-02-22 07:37:23 C 12 16 32.08 -21 03 29.4 V I52
2021-02-22 11:15:39 C 12 15 31.09 -20 48 02.0 V T08
2021-02-22 11:18:58 C 12 15 30.15 -20 47 48.7 V T08
2021-02-22 11:24:16 C 12 15 28.58 -20 47 25.7 V T08
2021-02-22 12:02:05 C 12 15 17.66 -20 44 47.6 V T08
2021-02-23 07:42:34 C 12 10 01.80 -19 23 35.1 V I52
2021-02-23 07:43:23 C 12 10 01.58 -19 23 31.7 V I52
2021-02-23 07:44:12 C 12 10 01.35 -19 23 28.0 V I52
2021-02-23 07:45:01 C 12 10 01.13 -19 23 24.7 V I52
2021-02-25 00:58:41 C 11 59 50.00 -16 41 24.5 V 204