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
1999-02-26 08:10:47 C 14 38 43.53 +18 45 55.9 c 758
1999-02-26 08:15:58 C 14 38 45.12 +18 45 46.1 c 758
1999-02-26 08:18:24 C 14 38 45.87 +18 45 42.3 c 758
1999-02-26 08:20:48 C 14 38 46.62 +18 45 37.7 c 758
1999-02-26 08:27:48 C 14 38 49.56 +18 45 17.9 17.2 a 704
1999-02-26 08:42:44 C 14 38 54.04 +18 44 53.3 17.5 a 704
1999-02-26 08:57:35 C 14 38 58.53 +18 44 26.3 17.1 a 704
1999-02-26 09:12:28 C 14 39 02.86 +18 44 00.4 17.4 a 704
1999-02-26 09:22:18 C 14 39 04.89 +18 43 48.5 c 758
1999-02-26 09:23:38 C 14 39 05.15 +18 43 47.1 c 758
1999-02-26 09:24:59 C 14 39 05.36 +18 43 45.1 c 758
1999-02-26 09:26:21 C 14 39 05.66 +18 43 42.9 c 758
1999-02-26 09:27:23 C 14 39 07.28 +18 43 34.9 17.6 a 704
1999-02-26 09:32:48 C 14 39 08.96 +18 43 19.7 c 713
1999-02-26 09:42:13 C 14 39 11.88 +18 43 07.7 17.4 a 704
1999-02-26 09:57:06 C 14 39 16.25 +18 42 42.9 17.4 a 704
1999-02-26 09:58:32 C 14 39 16.59 +18 42 35.4 c 713
1999-02-26 10:12:00 C 14 39 20.64 +18 42 14.9 17.7 a 704
1999-02-26 10:26:56 C 14 39 25.02 +18 41 51.4 17.8 a 704
1999-02-26 10:56:44 C 14 39 33.96 +18 40 57.1 17.3 a 704
1999-02-26 11:11:38 C 14 39 38.44 +18 40 29.5 17.2 a 704
1999-02-26 11:26:45 C 14 39 42.79 +18 40 02.1 16.9 a 704
1999-02-26 11:41:54 C 14 39 47.39 +18 39 35.8 16.9 a 704
1999-02-26 11:56:55 C 14 39 51.79 +18 39 08.6 a 704
1999-02-26 23:10:02 C 14 43 23.99 +18 18 22.7 046
1999-02-26 23:11:57 C 14 43 24.59 +18 18 19.1 046
1999-02-26 23:13:17 C 14 43 25.01 +18 18 16.8 046
1999-02-26 23:14:30 C 14 43 25.40 +18 18 14.1 046
1999-02-27 03:50:36 C 14 44 50.19 +18 09 41.5 118
1999-02-27 03:54:38 C 14 44 51.43 +18 09 33.6 118
1999-03-02 10:09:27 C 15 11 02.20 +15 21 28.5 658
1999-03-02 10:14:43 C 15 11 04.01 +15 21 16.4 658
1999-03-12 12:21:17 C 16 48 00.51 +02 17 25.4 z 711
1999-03-12 12:26:09 C 16 48 02.55 +02 17 06.5 z 711
1999-03-12 18:41:37 C 16 50 47.26 +01 53 43.3 422
1999-03-12 18:42:27 C 16 50 47.58 +01 53 40.0 422
1999-03-12 18:43:05 C 16 50 47.88 +01 53 37.5 422
1999-03-13 03:26:51 C 16 54 37.36 +01 18 06.7 d 046
1999-03-13 03:28:09 C 16 54 37.91 +01 18 01.7 d 046
1999-03-13 03:29:09 C 16 54 38.35 +01 17 57.7 d 046
1999-03-13 03:31:15 C 16 54 39.25 +01 17 49.3 d 046
1999-03-13 03:53:17 C 16 54 48.49 +01 16 23.1 118
1999-03-13 03:58:18 C 16 54 50.61 +01 16 03.5 118
1999-03-13 04:01:38 C 16 54 52.03 +01 15 50.6 118
1999-03-14 04:19:10 C 17 05 33.14 -00 20 09.9 104
1999-03-14 04:20:47 C 17 05 33.62 -00 20 15.6 104
1999-03-14 09:51:13 C 17 08 00.80 -00 41 57.6 z 719
1999-03-14 09:55:39 C 17 08 03.05 -00 42 18.3 z 719
1999-03-18 03:42:28 C 17 47 26.89 -06 35 41.3 d 046
1999-03-18 03:43:37 C 17 47 27.35 -06 35 46.3 d 046
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)