2021 DE

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7596431000
Semi-major axis (a)1.3890381000 AU
Inclination (i)4.74519000°
Long. of Asc. Node (Ω)337.13329000°
Arg. of Perihelion (ω)304.12403000°
Mean Anomaly (M)291.93982000°
Mean Motion (n)0.6020504000°/day
Perihelion dist (q)0.33386490 AU
Aphelion dist (Q)2.44421130 AU
Orbital Period1.63708500 yr
Physical Parameters
H (abs. magnitude)24.37
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.710″
Uncertainty8
Orbit TypeApollo
MOID0.002465 AU
Observations Used70
Radar Obs Used1
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-02-27
Observations (73)
Date Type RA Dec Mag Band Observatory
2021-02-26 21:42:54 C 09 32 59.36 +11 42 04.7 V Z80
2021-02-26 21:47:54 C 09 32 38.16 +11 42 42.7 V Z80
2021-02-26 21:55:23 C 09 32 06.15 +11 43 40.5 V Z80
2021-02-26 22:43:18 C 09 28 36.82 +11 49 53.1 V J95
2021-02-26 22:48:19 C 09 28 14.36 +11 50 32.1 V J95
2021-02-26 22:52:46 C 09 27 54.27 +11 51 06.6 V J95
2021-02-27 19:01:39 C 06 42 22.80 +13 25 16.8 V J95
2021-02-27 19:05:30 C 06 41 32.86 +13 24 44.5 V J95
2021-02-27 19:09:12 C 06 40 44.71 +13 24 12.8 V J95
2021-02-27 19:13:56 C 06 39 43.03 +13 23 31.0 V J95
2021-02-27 21:31:54 C 06 08 57.24 +12 55 46.5 V Z43
2021-02-27 21:31:56 C 06 08 56.64 +12 55 46.2 V Z43
2021-02-27 21:33:11 C 06 08 39.53 +12 54 49.8 V Z80
2021-02-27 21:34:17 C 06 08 24.60 +12 54 32.5 V Z80
2021-02-27 21:37:38 C 06 07 38.88 +12 53 38.4 V Z80
2021-02-27 21:40:53 C 06 06 54.77 +12 53 23.2 V Z43
2021-02-27 21:46:42 C 06 05 35.27 +12 51 11.5 V Z80
2021-02-27 21:51:42 C 06 04 27.02 +12 49 48.1 V Z80
2021-02-27 21:59:16 C 06 02 43.73 +12 47 41.6 V Z80
2021-02-27 22:04:09 C 06 01 37.03 +12 46 16.9 V Z80
2021-02-27 22:40:28 C 05 53 20.72 +12 35 18.7 V J95
2021-02-27 22:44:18 C 05 52 28.16 +12 34 05.5 V J95
2021-02-27 22:48:46 C 05 51 26.91 +12 32 38.8 V J95
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2021-02-28 23:50:00 -1218649.7 1 Hz 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)