311066 (2004 DC)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3996244279 ± 8.25e-09
Semi-major axis (a)1.6335802811 AU ± 4.80e-09
Inclination (i)19.46052100° ± 1.45e-06
Long. of Asc. Node (Ω)74.90257885° ± 1.10e-06
Arg. of Perihelion (ω)156.35576316° ± 6.55e-06
Mean Anomaly (M)124.94324225° ± 1.63e-05
Mean Motion (n)0.4720647288°/day ± 2.08e-09
Perihelion dist (q)0.98076170 AU ± 1.38e-08
Aphelion dist (Q)2.28639887 AU ± 1.51e-08
Orbital Period2.08790495 yr ± 9.20e-09
Physical Parameters
H (abs. magnitude)18.28
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.337″
Uncertainty0
Orbit TypeApollo
MOID0.010304 AU
Observations Used339
Radar Obs Used8
Oppositions1
Arc Total2004-2025
First Observation Used2004-02-16
Last Observation Used2025-11-09
Observations (359)
Date Type RA Dec Mag Band Observatory
2025-09-15 13:07:35 C 02 17 31.998 -22 56 30.20 X F51
2025-09-15 13:23:23 C 02 17 31.138 -22 56 36.79 X F51
2025-09-15 13:39:28 C 02 17 30.269 -22 56 43.46 X F51
2025-10-15 08:56:01 C 01 28 10.004 -25 13 14.54 X F51
2025-10-15 09:11:12 C 01 28 08.879 -25 13 13.18 X F51
2025-10-15 09:41:39 C 01 28 06.576 -25 13 10.04 X F51
2025-11-09 04:26:09 C 00 53 44.862 -21 59 48.34 V I52
2025-11-09 04:32:56 C 00 53 44.603 -21 59 44.66 V I52
2025-11-09 04:46:16 C 00 53 44.045 -21 59 37.82 V I52
Radar Observations (8)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2006-05-29 07:40:00 601427 0.5 Hz 8560 -14 -14
2006-05-29 08:40:00 46945047.97 10 us 8560 -14 -14
2006-05-29 10:00:00 46608670.61 1 us 8560 -14 -14
2006-05-29 12:20:00 46023465.59 0.5 us 8560 -14 -14
2006-05-30 14:00:00 39902087.22 0.5 us 8560 -14 -14
2006-06-02 11:10:00 27567006.603 0.5 us 2380 -1 -1
2006-06-02 12:30:00 27427724.971 0.5 us 2380 -1 -1
2006-06-03 15:10:00 25809317.503 0.25 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)