85938 (1999 DJ4)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4845393244 ± 1.42e-08
Semi-major axis (a)1.8524608141 AU ± 1.41e-09
Inclination (i)9.14045106° ± 2.88e-06
Long. of Asc. Node (Ω)19.86565638° ± 1.26e-05
Arg. of Perihelion (ω)197.77528463° ± 1.28e-05
Mean Anomaly (M)198.34536141° ± 3.98e-06
Mean Motion (n)0.3909207572°/day ± 4.46e-10
Perihelion dist (q)0.95487070 AU ± 2.64e-08
Aphelion dist (Q)2.75005093 AU ± 2.65e-08
Orbital Period2.52129432 yr ± 2.88e-09
Physical Parameters
H (abs. magnitude)18.73
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.434″
Uncertainty0
Orbit TypeApollo
MOID0.024471 AU
Observations Used642
Radar Obs Used1
Oppositions3
Arc Total1999-2024
First Observation Used1999-02-24
Last Observation Used2024-07-01
Observations (650)
Date Type RA Dec Mag Band Observatory
2004-03-15 21:19:47 C 08 12 45.95 +50 54 56.0 c 127
2004-03-16 20:30:26 C 08 09 13.94 +50 43 27.0 c 127
2004-03-16 20:36:55 C 08 09 12.84 +50 43 23.5 c 127
2004-03-16 20:43:43 C 08 09 11.71 +50 43 19.6 c 127
2004-03-16 20:52:12 C 08 09 10.28 +50 43 14.9 c 127
2004-03-16 20:59:57 C 08 09 08.99 +50 43 10.7 c 127
2004-03-16 22:44:42 C 08 08 51.21 +50 42 08.5 r 557
2004-03-16 23:00:37 C 08 08 48.61 +50 41 58.5 r 557
2004-03-16 23:19:45 C 08 08 45.47 +50 41 46.7 r 557
2004-03-17 00:26:57 C 08 08 34.74 +50 41 03.8 r 557
2004-03-17 00:49:15 C 08 08 31.26 +50 40 49.3 r 557
2004-03-17 18:39:30 C 08 05 49.99 +50 31 05.5 d 557
2004-03-17 19:08:47 C 08 05 45.06 +50 30 48.6 d 557
2004-03-17 19:19:17 C 08 05 43.72 +50 30 41.6 c 127
2004-03-17 19:25:59 C 08 05 42.58 +50 30 37.4 c 127
2004-03-17 19:41:11 C 08 05 39.58 +50 30 29.5 d 557
2004-03-17 19:41:28 C 08 05 39.94 +50 30 28.7 c 127
2004-03-17 20:09:55 C 08 05 34.69 +50 30 12.3 d 557
2004-03-17 20:11:30 C 08 05 34.73 +50 30 12.6 o 240
2004-03-17 20:13:36 C 08 05 34.38 +50 30 11.3 o 240
2004-03-17 20:15:42 C 08 05 34.02 +50 30 10.0 o 240
2004-03-17 20:16:44 C 08 05 33.85 +50 30 09.2 o 240
2004-03-17 20:17:47 C 08 05 33.65 +50 30 08.7 o 240
2004-03-17 20:21:58 C 08 05 32.94 +50 30 06.1 o 240
2004-03-17 20:25:06 C 08 05 32.41 +50 30 04.3 o 240
2004-03-17 20:31:23 C 08 05 31.35 +50 30 00.2 o 240
2004-03-17 20:41:57 C 08 05 29.24 +50 29 52.4 d 557
2004-03-17 21:10:31 C 08 05 24.44 +50 29 33.9 d 557
2004-03-17 21:39:53 C 08 05 19.52 +50 29 15.3 d 557
2004-03-17 22:21:29 C 08 05 12.62 +50 28 47.4 d 557
2004-03-17 22:43:50 C 08 05 08.90 +50 28 32.1 d 557
2004-03-17 23:18:56 C 08 05 03.12 +50 28 07.6 d 557
2004-03-17 23:44:28 C 08 04 58.97 +50 27 49.9 d 557
2004-03-19 02:40:35 C 08 00 50.25 +50 10 55.4 d 712
2004-03-19 02:56:18 C 08 00 47.44 +50 10 45.0 d 712
2004-03-19 03:20:55 C 08 00 43.25 +50 10 28.1 d 712
2004-03-20 01:18:55 C 07 57 15.42 +49 54 54.6 16.8 d H72
2004-03-20 01:21:07 C 07 57 15.09 +49 54 52.4 16.9 d H72
2004-03-20 01:23:19 C 07 57 14.56 +49 54 50.5 16.8 d H72
2004-03-20 01:25:31 C 07 57 14.20 +49 54 49.2 17.0 d H72
2004-03-20 04:04:10 C 07 56 46.83 +49 52 38.1 c H41
2004-03-20 04:07:26 C 07 56 46.24 +49 52 35.4 c H41
2004-03-20 04:10:39 C 07 56 45.64 +49 52 33.1 c H41
2004-03-20 04:12:56 C 07 56 45.29 +49 52 31.0 c H41
2004-03-21 02:03:21 C 07 53 16.86 +49 35 20.4 16.6 d H72
2004-03-21 02:05:34 C 07 53 16.52 +49 35 19.1 16.4 d H72
2004-03-21 02:07:47 C 07 53 16.14 +49 35 17.5 16.7 d H72
2004-03-21 02:09:57 C 07 53 15.74 +49 35 15.3 16.7 d H72
2004-03-21 18:41:45 C 07 50 36.42 +49 20 44.2 d 557
2004-03-21 19:16:45 C 07 50 30.17 +49 20 12.9 d 557
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2004-04-14 19:24:00 65761431.4 4 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)