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
2004-03-21 20:02:25 C 07 50 22.03 +49 19 31.4 d 557
2004-03-21 20:45:16 C 07 50 14.41 +49 18 51.2 d 557
2004-03-21 21:16:39 C 07 50 08.88 +49 18 21.0 d 557
2004-03-22 02:36:09 C 07 49 18.23 +49 13 51.6 c H41
2004-03-22 02:39:25 C 07 49 17.69 +49 13 48.4 c H41
2004-03-22 02:41:47 C 07 49 17.30 +49 13 45.9 c H41
2004-03-22 02:43:49 C 07 49 16.82 +49 13 44.8 c H41
2004-03-22 18:41:21 C 07 46 40.47 +48 58 30.0 d 557
2004-03-22 19:12:44 C 07 46 34.78 +48 57 59.1 d 557
2004-03-22 19:41:18 C 07 46 29.59 +48 57 30.7 d 557
2004-03-22 20:12:42 C 07 46 23.89 +48 56 59.0 d 557
2004-03-22 20:41:17 C 07 46 18.74 +48 56 29.8 d 557
2004-03-22 21:12:41 C 07 46 13.13 +48 55 56.7 d 557
2004-03-22 21:41:13 C 07 46 08.06 +48 55 26.7 d 557
2004-03-22 22:12:38 C 07 46 02.50 +48 54 52.9 d 557
2004-03-22 22:41:11 C 07 45 57.52 +48 54 22.2 d 557
2004-03-25 20:44:11 C 07 34 03.67 +47 36 03.8 c A32
2004-03-25 20:52:16 C 07 34 01.90 +47 35 51.1 c A32
2004-03-25 21:00:19 C 07 34 00.46 +47 35 41.2 c A32
2004-03-25 21:08:24 C 07 33 58.94 +47 35 29.6 c A32
2004-03-25 21:16:29 C 07 33 57.35 +47 35 19.6 c A32
2004-03-28 05:23:57 C 07 23 47.18 +46 17 04.0 c 670
2004-03-28 05:25:26 C 07 23 46.91 +46 17 01.6 c 670
2004-03-28 18:35:47 C 07 21 20.74 +45 56 02.6 c 113
2004-03-28 18:36:52 C 07 21 20.51 +45 56 00.7 c 113
2004-03-28 18:37:57 C 07 21 20.27 +45 55 59.0 c 113
2004-03-28 18:39:02 C 07 21 20.05 +45 55 57.3 c 113
2004-03-28 18:40:07 C 07 21 19.82 +45 55 55.5 c 113
2004-03-28 19:34:52 C 07 21 08.30 +45 54 24.9 d 557
2004-03-28 19:39:04 C 07 21 07.44 +45 54 17.9 d 557
2004-03-28 19:43:16 C 07 21 06.57 +45 54 11.1 d 557
2004-03-28 19:47:28 C 07 21 05.70 +45 54 03.6 d 557
2004-03-28 19:51:39 C 07 21 04.84 +45 53 56.6 d 557
2004-03-28 23:49:36 07 20 18.28 +45 46 49.5 o 084
2004-03-29 03:18:48 C 07 19 39.40 +45 41 55.1 d 712
2004-03-29 03:21:30 C 07 19 38.89 +45 41 51.5 d 712
2004-03-29 03:32:47 C 07 19 36.64 +45 41 30.7 d 712
2004-03-29 03:45:37 C 07 19 33.77 +45 41 09.2 d 712
2004-03-29 04:02:15 C 07 19 30.32 +45 40 40.5 d 712
2004-03-29 21:07:57 C 07 16 11.15 +45 10 59.0 o J84
2004-03-29 21:09:39 C 07 16 10.81 +45 10 56.0 o J84
2004-03-29 21:11:33 C 07 16 10.41 +45 10 52.1 o J84
2004-03-29 21:15:32 C 07 16 09.54 +45 10 45.0 o J84
2004-03-29 21:16:31 C 07 16 09.34 +45 10 43.0 o J84
2004-03-29 21:18:16 C 07 16 08.97 +45 10 40.2 o J84
2004-03-29 23:29:30 07 15 42.36 +45 06 11.4 o 084
2004-03-30 02:10:58 C 07 15 11.84 +45 02 18.6 r H41
2004-03-30 02:13:38 C 07 15 11.31 +45 02 13.3 r H41
2004-03-30 02:16:05 C 07 15 10.74 +45 02 08.4 r H41
2004-03-30 02:17:36 C 07 15 10.41 +45 02 06.1 r 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)