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
2004-02-23 19:10:32 C 09 21 25.10 +50 10 42.4 c J92
2004-02-23 19:27:33 C 09 21 23.12 +50 10 52.7 c J92
2004-02-23 19:40:28 C 09 21 21.87 +50 10 59.3 c J92
2004-02-23 19:43:01 C 09 21 21.30 +50 11 02.5 c J92
2004-02-23 19:45:33 C 09 21 20.99 +50 11 03.6 c J92
2004-02-23 19:50:38 C 09 21 20.38 +50 11 06.6 c J92
2004-02-23 19:53:11 C 09 21 20.07 +50 11 08.3 c J92
2004-02-23 19:58:16 C 09 21 19.51 +50 11 11.2 c J92
2004-02-24 04:51:14 C 09 20 19.04 +50 16 09.3 c 670
2004-02-24 04:55:35 C 09 20 18.54 +50 16 12.0 c 670
2004-02-24 18:47:19 C 09 18 43.22 +50 23 15.6 d 557
2004-02-24 19:46:19 C 09 18 35.97 +50 23 48.3 d 557
2004-02-24 20:47:05 C 09 18 28.43 +50 24 21.1 d 557
2004-02-24 21:28:35 C 09 18 23.24 +50 24 43.0 d 557
2004-02-24 22:51:16 C 09 18 12.83 +50 25 24.9 d 557
2004-02-24 23:18:29 C 09 18 09.62 +50 25 39.5 c 240
2004-02-24 23:22:23 C 09 18 09.13 +50 25 41.3 c 240
2004-02-24 23:27:34 C 09 18 08.46 +50 25 43.8 c 240
2004-02-24 23:28:52 C 09 18 08.31 +50 25 44.4 c 240
2004-02-24 23:32:46 C 09 18 07.81 +50 25 46.2 c 240
2004-02-24 23:35:20 C 09 18 07.49 +50 25 47.5 c 240
2004-02-24 23:53:52 C 09 18 05.01 +50 25 54.9 d 557
2004-02-25 00:57:38 C 09 17 57.07 +50 26 24.5 d 557
2004-02-25 01:58:15 C 09 17 49.65 +50 26 51.8 d 557
2004-02-25 02:56:02 C 09 17 42.67 +50 27 16.6 d 557
2004-02-25 03:47:11 C 09 17 36.64 +50 27 38.7 d 557
2004-02-25 04:25:28 C 09 17 32.21 +50 27 55.2 d 557
2004-02-27 12:38:14 C 09 10 50.46 +50 53 49.5 o 379
2004-02-27 12:41:23 C 09 10 50.19 +50 53 50.3 o 379
2004-02-27 15:00:59 C 09 10 31.10 +50 54 46.0 355
2004-02-27 15:05:10 C 09 10 30.44 +50 54 48.3 355
2004-02-27 15:09:19 C 09 10 29.95 +50 54 49.8 355
2004-02-28 04:52:20 C 09 08 50.49 +51 00 13.0 c 670
2004-02-28 05:10:59 C 09 08 48.04 +51 00 20.7 c 670
2004-02-28 05:32:58 C 09 08 45.00 +51 00 29.9 c 670
2004-02-28 22:47:49 C 09 06 33.89 +51 06 45.2 c 176
2004-02-28 22:50:31 C 09 06 33.52 +51 06 46.1 c 176
2004-02-28 22:54:10 C 09 06 33.01 +51 06 47.3 c 176
2004-02-28 22:57:10 C 09 06 32.59 +51 06 48.3 c 176
2004-02-28 22:59:20 C 09 06 32.29 +51 06 49.0 c 176
2004-02-28 23:01:52 C 09 06 31.94 +51 06 49.9 c 176
2004-03-01 05:22:06 C 09 02 39.77 +51 16 42.5 17.9 c 704
2004-03-01 05:39:19 C 09 02 37.27 +51 16 47.7 18.2 c 704
2004-03-01 05:56:31 C 09 02 34.97 +51 16 53.0 19.0 c 704
2004-03-01 06:13:39 C 09 02 32.36 +51 16 57.5 17.9 c 704
2004-03-01 06:30:48 C 09 02 29.97 +51 17 02.2 17.9 c 704
2004-03-02 04:12:31 C 08 59 41.45 +51 22 59.8 c H41
2004-03-02 04:15:29 C 08 59 40.88 +51 22 59.5 c H41
2004-03-02 04:19:13 C 08 59 40.36 +51 23 00.7 c H41
2004-03-02 04:21:31 C 08 59 39.94 +51 23 01.4 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)