IAA RAS IAA Minor Planet Database

2020 DD4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3953121601 ± 4.88e-04
Semi-major axis (a)1.3795175604 AU ± 8.62e-04
Inclination (i)0.54081852° ± 5.14e-04
Long. of Asc. Node (Ω)205.45514772° ± 6.76e-02
Arg. of Perihelion (ω)20.56141513° ± 6.76e-02
Mean Anomaly (M)162.28018611° ± 1.17e+00
Mean Motion (n)0.6083050564°/day ± 5.70e-04
Perihelion dist (q)0.83417749 AU ± 8.51e-04
Aphelion dist (Q)1.92485763 AU ± 1.38e-03
Orbital Period1.62028290 yr ± 1.52e-03
Physical Parameters
H (abs. magnitude)28.30
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.537″
Uncertainty4
Orbit TypeApollo
MOID0.006402 AU
Observations Used16
Oppositions1
Arc Total2020-2020
First Observation Used2020-02-27
Last Observation Used2020-02-28
Observations (16)
Date Type RA Dec Mag Band Observatory
2020-02-27 06:11:21 C 10 02 50.72 -04 18 45.7 – V G96
2020-02-27 06:18:44 C 10 02 50.06 -04 19 49.3 – V G96
2020-02-27 06:26:06 C 10 02 49.42 -04 20 53.5 – V G96
2020-02-27 09:45:34 C 10 02 32.00 -04 50 46.3 – V I52
2020-02-27 09:47:58 C 10 02 31.87 -04 51 09.1 – V I52
2020-02-27 09:50:24 C 10 02 31.70 -04 51 31.0 – V I52
2020-02-27 21:04:34 C 10 02 57.947 -06 48 23.83 – V J04
2020-02-27 21:18:03 C 10 02 51.65 -06 51 57.8 – V Z84
2020-02-27 21:30:07 C 10 02 50.70 -06 54 22.4 – V Z84
2020-02-27 21:47:01 C 10 02 49.26 -06 57 43.5 – V Z84
2020-02-28 21:32:31 C 10 02 29.65 -13 16 53.4 – V L01
2020-02-28 21:33:57 C 10 02 45.38 -13 15 15.9 – – J04
2020-02-28 21:41:39 C 10 02 28.63 -13 20 08.4 – V L01
2020-02-28 21:44:08 C 10 02 28.35 -13 21 01.5 – V L01
2020-02-28 21:45:29 C 10 02 44.15 -13 19 25.2 – – J04
2020-02-28 21:46:15 C 10 02 28.06 -13 21 45.7 – V L01