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
2004-01-25 00:44:42 C 10 05 08.73 +40 42 35.1 o 084
2004-01-31 08:20:24 C 10 01 50.03 +42 50 35.2 d 703
2004-01-31 08:42:34 C 10 01 49.20 +42 50 54.9 d 703
2004-01-31 09:04:51 C 10 01 48.36 +42 51 13.6 d 703
2004-01-31 09:27:01 C 10 01 47.50 +42 51 33.5 d 703
2004-02-01 04:27:48 C 10 01 10.51 +43 08 14.7 o 859
2004-02-01 04:41:57 C 10 01 09.86 +43 08 25.9 o 859
2004-02-03 08:00:56 C 09 59 15.28 +43 52 45.5 18.1 c 704
2004-02-03 08:18:48 C 09 59 14.33 +43 53 01.5 18.8 c 704
2004-02-03 08:36:46 C 09 59 13.43 +43 53 16.1 18.9 c 704
2004-02-03 08:55:02 C 09 59 12.66 +43 53 32.6 18.2 c 704
2004-02-03 09:12:54 C 09 59 11.73 +43 53 48.2 18.4 c 704
2004-02-08 05:30:18 C 09 53 29.44 +45 34 31.2 17.6 m H67
2004-02-08 05:48:29 C 09 53 28.38 +45 34 46.6 17.5 m H67
2004-02-08 06:08:43 C 09 53 27.03 +45 35 04.1 17.7 m H67
2004-02-09 05:44:15 C 09 52 03.87 +45 55 13.0 c 699
2004-02-09 05:58:52 C 09 52 02.83 +45 55 26.4 c 699
2004-02-09 06:13:30 C 09 52 01.85 +45 55 39.3 c 699
2004-02-09 06:28:08 C 09 52 00.70 +45 55 52.6 c 699
2004-02-09 22:39:40 C 09 50 59.82 +46 09 31.1 r A16
2004-02-09 22:55:30 C 09 50 58.73 +46 09 44.9 r A16
2004-02-09 23:10:54 C 09 50 57.71 +46 09 58.9 r A16
2004-02-10 03:30:36 C 09 50 39.27 +46 13 35.1 c 204
2004-02-10 03:32:48 C 09 50 39.12 +46 13 35.2 c 204
2004-02-10 03:35:21 C 09 50 39.04 +46 13 38.1 c 204
2004-02-10 06:26:25 C 09 50 29.82 +46 16 10.4 19.0 c 704
2004-02-10 06:43:13 C 09 50 28.63 +46 16 25.6 19.3 c 704
2004-02-10 07:00:09 C 09 50 27.35 +46 16 38.0 18.2 c 704
2004-02-10 07:17:56 C 09 50 26.06 +46 16 54.9 19.2 c 704
2004-02-10 07:34:49 C 09 50 24.79 +46 17 09.2 18.5 c 704
2004-02-10 19:35:17 C 09 49 37.97 +46 27 00.5 o 084
2004-02-11 06:49:01 C 09 48 51.89 +46 36 35.8 18.2 c 704
2004-02-11 07:06:10 C 09 48 50.57 +46 36 49.9 18.4 c 704
2004-02-11 07:23:27 C 09 48 49.22 +46 37 04.5 18.1 c 704
2004-02-11 07:40:54 C 09 48 47.87 +46 37 19.0 18.5 c 704
2004-02-11 07:58:11 C 09 48 46.52 +46 37 33.5 18.4 c 704
2004-02-11 20:39:48 C 09 47 54.59 +46 47 53.3 r 557
2004-02-11 20:42:30 C 09 47 54.37 +46 47 56.0 r 557
2004-02-11 20:45:10 C 09 47 54.18 +46 47 58.4 r 557
2004-02-13 08:11:09 C 09 45 15.68 +47 17 02.0 r H41
2004-02-13 08:15:36 C 09 45 15.33 +47 17 02.1 r H41
2004-02-13 08:18:48 C 09 45 15.08 +47 17 06.7 r H41
2004-02-13 08:21:52 C 09 45 14.82 +47 17 08.9 r H41
2004-02-14 23:17:06 C 09 42 10.46 +47 47 55.8 18.4 c 130
2004-02-14 23:22:10 C 09 42 10.03 +47 47 59.8 18.4 c 130
2004-02-14 23:27:13 C 09 42 09.60 +47 48 03.9 18.5 c 130
2004-02-14 23:32:18 C 09 42 09.17 +47 48 07.9 18.4 c 130
2004-02-15 05:42:45 C 09 41 38.71 +47 52 55.1 r 750
2004-02-15 05:48:38 C 09 41 38.15 +47 53 00.3 r 750
2004-02-15 05:53:18 C 09 41 37.78 +47 53 03.5 r 750
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)