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
2020-02-27 04:38:15 C 09 16 04.45 +02 32 14.6 – V G96
2020-02-27 04:46:25 C 09 16 04.52 +02 31 36.3 – V G96
2020-02-27 04:54:36 C 09 16 04.57 +02 30 57.9 – V G96
2020-02-27 05:02:46 C 09 16 04.62 +02 30 19.5 – V G96
2020-02-27 05:34:09 C 09 16 02.88 +02 27 58.4 – o 711
2020-02-27 05:37:52 C 09 16 02.88 +02 27 41.1 – o 711
2020-02-27 05:41:31 C 09 16 02.88 +02 27 23.4 – o 711
2020-02-27 06:27:16 C 09 16 06.81 +02 23 29.2 – t 673
2020-02-27 06:36:02 C 09 16 06.85 +02 22 46.8 – t 673
2020-02-27 08:36:08 C 09 16 05.86 +02 13 06.2 – V I52
2020-02-27 08:39:00 C 09 16 05.94 +02 12 51.9 – V I52
2020-02-27 08:39:21 C 09 16 05.95 +02 12 50.0 – V I52
2020-02-27 08:42:12 C 09 16 05.98 +02 12 35.7 – V I52
2020-02-27 11:56:23 C 09 16 34.22 +02 01 32.3 – q E23
2020-02-27 12:14:24 C 09 16 34.43 +01 59 58.6 – q E23
2020-02-27 12:32:24 C 09 16 34.58 +01 58 25.3 – q E23
2020-02-27 18:46:16 C 09 17 13.63 +01 17 53.0 – t L04
2020-02-27 18:54:07 C 09 17 13.94 +01 17 07.3 – t L04
2020-02-27 19:02:59 C 09 17 14.28 +01 16 16.6 – t L04
2020-02-27 20:06:35 C 09 17 23.63 +01 10 46.5 – V Z84
2020-02-27 20:19:49 C 09 17 24.11 +01 09 29.0 – V Z84
2020-02-27 20:23:13 C 09 17 28.461 +01 09 49.74 – V J04
2020-02-27 20:23:42 C 09 17 28.512 +01 09 46.04 – V J04
2020-02-27 20:24:12 C 09 17 28.485 +01 09 43.51 – V J04
2020-02-27 20:33:03 C 09 17 24.59 +01 08 11.5 – V Z84
2020-02-27 21:38:18 C 09 17 24.94 +01 00 47.1 – V J95
2020-02-27 21:41:38 C 09 17 25.06 +01 00 26.6 – V J95
2020-02-27 21:44:55 C 09 17 25.20 +01 00 07.1 – V J95
2020-02-27 22:02:36 C 09 17 25.98 +00 58 46.8 – q I93
2020-02-27 22:07:03 C 09 17 26.12 +00 58 19.8 – q I93
2020-02-27 22:12:31 C 09 17 26.28 +00 57 46.9 – q I93
2020-02-27 22:35:08 C 09 17 26.88 +00 55 03.3 – V Z80
2020-02-27 22:43:52 C 09 17 27.01 +00 54 02.9 – V Z99
2020-02-27 22:45:07 C 09 17 27.21 +00 54 02.6 – V Z80
2020-02-27 22:48:30 C 09 17 27.19 +00 53 35.2 – V Z99
2020-02-27 22:53:08 C 09 17 27.41 +00 53 06.7 – V Z99
2020-02-27 22:53:22 C 09 17 27.65 +00 53 14.3 – V J69
2020-02-27 22:55:08 C 09 17 27.55 +00 53 01.6 – V Z80
2020-02-27 23:04:42 C 09 17 28.04 +00 52 04.6 – V J69
2020-02-27 23:16:02 C 09 17 28.43 +00 50 56.0 – V J69
2020-02-27 23:37:46 C 09 17 45.47 +00 55 38.4 – U X31
2020-02-27 23:41:48 C 09 17 45.63 +00 55 14.3 – U X31
2020-02-27 23:49:40 C 09 17 45.93 +00 54 25.3 – U X31
2020-02-28 00:10:24 C 09 17 27.70 +00 45 36.7 – V 204
2020-02-28 00:26:54 C 09 17 28.33 +00 43 53.9 – V 204
2020-02-28 01:28:55 C 09 17 54.69 +00 38 08.6 – V W34
2020-02-28 01:32:12 C 09 17 54.76 +00 37 47.8 – V W34
2020-02-28 01:35:38 C 09 17 54.89 +00 37 25.7 – V W34
2020-02-28 01:38:57 C 09 17 55.05 +00 37 05.3 – V W34
2020-02-28 01:46:50 C 09 17 55.34 +00 36 14.3 – V W34