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
2004-03-10 19:47:37 08 30 51.47 +51 33 00.2 o 084
2004-03-12 06:24:39 C 08 25 44.90 +51 25 54.2 c H41
2004-03-12 06:30:24 C 08 25 43.93 +51 25 52.5 c H41
2004-03-12 06:33:04 C 08 25 43.58 +51 25 51.6 c H41
2004-03-12 06:35:32 C 08 25 43.16 +51 25 50.7 c H41
2004-03-13 02:13:56 08 22 49.59 +51 19 56.6 o 084
2004-03-13 17:48:28 C 08 20 33.68 +51 15 31.4 c A50
2004-03-13 17:53:32 C 08 20 32.87 +51 15 29.9 c A50
2004-03-13 17:58:36 C 08 20 32.07 +51 15 28.4 c A50
2004-03-13 18:03:38 C 08 20 31.25 +51 15 26.8 c A50
2004-03-13 18:08:42 C 08 20 30.41 +51 15 25.4 c A50
2004-03-13 18:13:45 C 08 20 29.58 +51 15 23.7 c A50
2004-03-13 18:28:56 C 08 20 27.08 +51 15 18.8 c A50
2004-03-13 18:50:16 C 08 20 23.61 +51 15 11.7 c A50
2004-03-13 18:55:20 C 08 20 22.82 +51 15 10.1 c A50
2004-03-13 19:00:22 C 08 20 22.00 +51 15 08.3 c A50
2004-03-13 19:05:26 C 08 20 21.22 +51 15 06.8 c A50
2004-03-13 19:41:26 C 08 20 15.27 +51 14 54.1 c A50
2004-03-13 19:46:29 C 08 20 14.46 +51 14 52.3 c A50
2004-03-13 19:56:35 C 08 20 12.79 +51 14 48.9 c A50
2004-03-14 20:03:04 C 08 16 36.34 +51 05 54.4 d 557
2004-03-14 20:47:43 C 08 16 28.98 +51 05 35.7 d 557
2004-03-14 21:32:24 C 08 16 21.66 +51 05 16.1 d 557
2004-03-14 22:17:04 C 08 16 14.38 +51 04 55.6 d 557
2004-03-14 23:01:44 C 08 16 07.20 +51 04 34.1 d 557
2004-03-14 23:46:25 C 08 16 00.07 +51 04 12.2 d 557
2004-03-15 00:31:06 C 08 15 53.06 +51 03 49.5 d 557
2004-03-15 01:12:33 C 08 15 46.67 +51 03 28.2 d 557
2004-03-15 02:00:24 C 08 15 39.40 +51 03 03.6 d 557
2004-03-15 02:45:04 C 08 15 32.72 +51 02 39.9 d 557
2004-03-15 03:23:56 C 08 15 29.47 +51 03 06.4 c H41
2004-03-15 03:39:57 C 08 15 26.86 +51 02 59.3 c H41
2004-03-15 03:44:40 C 08 15 25.99 +51 02 55.7 c H41
2004-03-15 03:47:13 C 08 15 25.67 +51 02 54.8 c H41
2004-03-15 03:49:40 C 08 15 25.24 +51 02 53.9 c H41
2004-03-15 11:11:35 C 08 14 19.46 +50 59 46.2 379
2004-03-15 11:27:19 C 08 14 16.89 +50 59 38.9 379
2004-03-15 18:49:29 C 08 13 10.80 +50 56 08.1 o 151
2004-03-15 18:53:57 C 08 13 10.05 +50 56 06.4 o 151
2004-03-15 18:54:50 C 08 13 09.91 +50 56 06.0 o 151
2004-03-15 18:57:14 C 08 13 09.56 +50 56 04.9 o 151
2004-03-15 18:59:56 C 08 13 09.07 +50 56 03.8 o 151
2004-03-15 19:00:48 C 08 13 08.94 +50 56 03.5 o 151
2004-03-15 19:24:41 C 08 13 04.97 +50 55 52.3 o 198
2004-03-15 19:28:37 C 08 13 04.31 +50 55 50.4 o 198
2004-03-15 20:04:54 C 08 12 58.20 +50 55 33.9 o 198
2004-03-15 20:08:02 C 08 12 57.72 +50 55 32.5 o 198
2004-03-15 20:10:24 C 08 12 57.31 +50 55 31.4 o 198
2004-03-15 20:51:50 C 08 12 50.57 +50 55 10.2 c 127
2004-03-15 21:05:19 C 08 12 48.35 +50 55 04.0 c 127
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)