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
2004-03-02 04:23:56 C 08 59 39.62 +51 23 01.6 c H41
2004-03-03 19:12:15 C 08 54 31.54 +51 31 17.6 o 240
2004-03-03 19:13:34 C 08 54 31.38 +51 31 17.9 o 240
2004-03-03 19:14:52 C 08 54 31.21 +51 31 18.2 o 240
2004-03-03 19:27:56 C 08 54 29.36 +51 31 21.6 o 240
2004-03-03 19:31:51 C 08 54 28.81 +51 31 22.5 o 240
2004-03-04 20:53:12 08 51 01.03 +51 35 15.1 o 084
2004-03-05 19:13:41 C 08 47 58.73 +51 37 45.4 c 113
2004-03-05 19:15:18 C 08 47 58.51 +51 37 45.6 c 113
2004-03-05 19:16:53 C 08 47 58.29 +51 37 45.9 c 113
2004-03-05 19:18:28 C 08 47 58.01 +51 37 46.3 c 113
2004-03-05 19:20:04 C 08 47 57.80 +51 37 46.6 c 113
2004-03-06 05:47:55 C 08 46 28.31 +51 38 43.6 r H41
2004-03-06 05:51:10 C 08 46 27.72 +51 38 43.8 r H41
2004-03-06 05:55:07 C 08 46 27.05 +51 38 44.0 r H41
2004-03-06 05:58:51 C 08 46 26.54 +51 38 44.2 r H41
2004-03-06 06:01:54 C 08 46 26.14 +51 38 43.8 r H41
2004-03-06 06:06:45 C 08 46 25.43 +51 38 43.8 r H41
2004-03-07 00:50:36 08 43 48.57 +51 39 10.6 o 084
2004-03-07 06:03:37 C 08 43 05.10 +51 39 42.8 c H41
2004-03-07 06:08:52 C 08 43 04.07 +51 39 42.2 c H41
2004-03-07 06:13:29 C 08 43 03.44 +51 39 41.6 c H41
2004-03-07 06:15:23 C 08 43 03.13 +51 39 41.9 c H41
2004-03-07 06:17:41 C 08 43 02.74 +51 39 41.4 c H41
2004-03-07 18:49:40 C 08 41 20.59 +51 39 35.6 o 240
2004-03-07 18:50:58 C 08 41 20.39 +51 39 35.6 o 240
2004-03-07 19:10:25 C 08 41 17.43 +51 39 36.2 o 240
2004-03-07 19:14:19 C 08 41 16.84 +51 39 36.3 o 240
2004-03-07 19:16:54 C 08 41 16.44 +51 39 36.4 o 240
2004-03-07 19:19:29 C 08 41 16.04 +51 39 36.5 o 240
2004-03-07 19:20:47 C 08 41 15.84 +51 39 36.5 o 240
2004-03-08 02:42:29 C 08 40 13.12 +51 39 38.4 r H41
2004-03-08 02:46:58 C 08 40 12.50 +51 39 38.7 r H41
2004-03-08 02:49:14 C 08 40 12.08 +51 39 38.7 r H41
2004-03-08 02:51:12 C 08 40 11.81 +51 39 38.0 r H41
2004-03-08 02:53:01 C 08 40 11.47 +51 39 37.9 r H41
2004-03-08 20:43:47 C 08 37 39.05 +51 38 44.2 o 170
2004-03-08 20:48:24 C 08 37 38.32 +51 38 43.9 o 170
2004-03-08 20:59:06 C 08 37 36.64 +51 38 43.2 o 170
2004-03-09 11:43:26 C 08 35 30.31 +51 37 35.2 379
2004-03-09 11:46:34 C 08 35 29.79 +51 37 36.0 379
2004-03-09 21:01:03 C 08 34 09.231 +51 36 27.96 d 560
2004-03-09 21:02:59 C 08 34 08.986 +51 36 27.16 d 560
2004-03-09 21:04:28 C 08 34 08.767 +51 36 28.00 d 560
2004-03-09 21:06:03 C 08 34 08.498 +51 36 27.44 d 560
2004-03-09 21:07:28 C 08 34 08.211 +51 36 26.80 d 560
2004-03-10 03:11:05 C 08 33 16.51 +51 35 48.0 c H41
2004-03-10 03:13:43 C 08 33 16.09 +51 35 47.6 c H41
2004-03-10 03:16:28 C 08 33 15.64 +51 35 47.4 c H41
2004-03-10 03:18:32 C 08 33 15.30 +51 35 47.0 c H41
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)