IAA RAS IAA Minor Planet Database

2020 DA4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4316770568 ± 6.14e-09
Semi-major axis (a)1.6184578325 AU ± 4.34e-09
Inclination (i)0.84491012° ± 1.49e-06
Long. of Asc. Node (Ω)180.47502461° ± 3.03e-05
Arg. of Perihelion (ω)24.36817153° ± 2.84e-05
Mean Anomaly (M)264.61347927° ± 3.76e-06
Mean Motion (n)0.4786964349°/day ± 1.93e-09
Perihelion dist (q)0.91980672 AU ± 1.02e-08
Aphelion dist (Q)2.31710895 AU ± 1.17e-08
Orbital Period2.05897979 yr ± 8.29e-09
Physical Parameters
H (abs. magnitude)25.59
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.358″
Uncertainty0
Orbit TypeApollo
MOID0.004068 AU
Observations Used182
Oppositions1
Arc Total2020-2022
First Observation Used2020-02-27
Last Observation Used2022-06-05
Observations (186)
Date Type RA Dec Mag Band Observatory
2020-02-28 01:47:23 C 09 17 32.38 +00 35 31.2 – V C95
2020-02-28 01:51:28 C 09 17 32.56 +00 35 05.2 – V C95
2020-02-28 01:54:10 C 09 17 55.67 +00 35 27.5 – V W34
2020-02-28 02:00:01 C 09 17 53.14 +00 40 43.1 – u 807
2020-02-28 02:02:05 C 09 17 53.20 +00 40 29.9 – u 807
2020-02-28 02:02:12 C 09 17 55.96 +00 34 36.2 – V W34
2020-02-28 02:03:51 C 09 17 53.23 +00 40 18.4 – u 807
2020-02-28 03:45:00 C 09 18 07.62 +00 23 42.0 – V I52
2020-02-28 03:45:12 C 09 18 07.58 +00 23 40.6 – V I52
2020-02-28 03:47:02 C 09 18 07.66 +00 23 28.6 – V I52
2020-02-28 03:57:37 C 09 18 07.97 +00 22 17.8 – V I52
2020-02-28 04:34:34 C 09 18 04.33 +00 17 42.8 – V H36
2020-02-28 04:43:35 C 09 18 04.58 +00 16 42.3 – V H36
2020-02-28 04:52:43 C 09 18 04.85 +00 15 41.8 – V H36
2020-02-28 04:59:12 C 09 18 05.04 +00 14 58.1 – V H36
2020-02-28 05:11:37 C 09 18 05.48 +00 13 33.8 – V 734
2020-02-28 05:15:53 C 09 18 05.61 +00 13 04.9 – V 734
2020-02-28 05:20:09 C 09 18 05.73 +00 12 35.5 – V 734
2020-02-28 05:22:18 C 09 18 05.79 +00 12 21.4 – V 734
2020-02-28 07:16:18 C 09 18 17.82 -00 01 23.3 – L 658
2020-02-28 07:17:16 C 09 18 17.86 -00 01 30.3 – L 658
2020-02-28 07:18:13 C 09 18 17.91 -00 01 36.8 – L 658
2020-02-28 07:20:08 C 09 18 18.00 -00 01 50.1 – L 658
2020-02-28 07:21:05 C 09 18 18.04 -00 01 56.7 – L 658
2020-02-28 18:33:26 C 09 19 55.97 -01 27 18.1 – V L34
2020-02-28 18:44:23 C 09 19 56.83 -01 28 50.2 – V L34
2020-02-28 18:52:34 C 09 19 57.48 -01 30 00.1 – V L34
2020-02-28 19:01:41 C 09 19 58.12 -01 31 18.5 – V L34
2020-02-28 19:09:18 C 09 19 55.93 -01 33 25.5 – S C43
2020-02-28 19:12:17 C 09 19 56.18 -01 33 51.3 – S C43
2020-02-28 19:15:21 C 09 19 56.42 -01 34 17.8 – S C43
2020-02-28 19:18:24 C 09 19 56.68 -01 34 43.6 – S C43
2020-02-28 19:21:25 C 09 19 56.93 -01 35 10.3 – S C43
2020-02-28 20:03:59 C 09 20 01.28 -01 40 24.5 – V K96
2020-02-28 20:12:20 C 09 20 01.81 -01 41 37.0 – V K96
2020-02-28 20:17:04 C 09 20 02.10 -01 42 17.9 – V K96
2020-02-28 20:25:06 C 09 20 03.99 -01 43 50.4 – o 159
2020-02-28 20:33:35 C 09 20 03.43 -01 45 14.3 – V 595
2020-02-28 20:37:34 C 09 20 04.82 -01 45 40.5 – o 159
2020-02-28 20:42:17 C 09 20 04.02 -01 46 30.7 – V 595
2020-02-28 20:46:05 C 09 20 05.34 -01 46 55.0 – o 159
2020-02-28 20:47:03 C 09 20 05.44 -01 47 04.2 – V K63
2020-02-28 20:48:05 C 09 20 04.39 -01 47 21.5 – V 595
2020-02-28 20:51:00 C 09 20 05.68 -01 47 38.5 – V K63
2020-02-28 20:52:01 C 09 20 04.63 -01 47 53.7 – V L01
2020-02-28 20:54:18 C 09 20 04.79 -01 48 14.3 – V L01
2020-02-28 20:55:25 C 09 20 05.96 -01 48 18.0 – V K63
2020-02-28 20:56:35 C 09 20 04.92 -01 48 34.1 – V L01
2020-02-28 20:58:53 C 09 20 05.06 -01 48 54.2 – V L01
2020-02-28 21:03:59 C 09 20 06.45 -01 49 32.1 – V 160