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
2004-03-30 02:19:11 C 07 15 10.10 +45 02 03.0 r H41
2004-03-30 02:20:43 C 07 15 09.76 +45 02 00.6 r H41
2004-03-31 01:02:43 07 10 34.27 +44 18 04.2 o 084
2004-03-31 02:22:11 C 07 10 18.59 +44 16 35.2 r H41
2004-03-31 02:24:19 C 07 10 18.00 +44 16 31.7 r H41
2004-03-31 02:26:13 C 07 10 17.66 +44 16 28.5 r H41
2004-03-31 02:27:55 C 07 10 17.16 +44 16 24.4 r H41
2004-03-31 02:29:44 C 07 10 16.72 +44 16 20.4 r H41
2004-04-01 20:29:08 07 01 19.86 +42 46 01.8 o 084
2004-04-02 02:21:26 C 07 00 02.52 +42 32 50.1 r 750
2004-04-02 02:24:14 C 07 00 01.78 +42 32 43.5 r 750
2004-04-02 02:27:16 C 07 00 01.05 +42 32 36.2 r 750
2004-04-02 02:32:38 C 06 59 59.79 +42 32 22.6 r 750
2004-04-02 02:38:00 C 06 59 58.52 +42 32 09.1 r 750
2004-04-02 02:43:24 C 06 59 57.19 +42 31 56.7 r 750
2004-04-02 20:54:40 C 06 55 49.43 +41 46 58.1 o 084
2004-04-03 20:41:06 C 06 50 13.46 +40 43 58.5 o 084
2004-04-04 21:04:02 C 06 44 12.22 +39 32 55.6 o 084
2004-04-05 01:59:19 C 06 42 57.87 +39 18 37.1 r H41
2004-04-05 02:02:22 C 06 42 56.95 +39 18 28.0 r H41
2004-04-05 02:05:11 C 06 42 56.15 +39 18 18.1 r H41
2004-04-05 02:07:05 C 06 42 55.62 +39 18 12.2 r H41
2004-04-05 20:32:34 C 06 38 07.51 +38 17 43.6 o 084
2004-04-06 20:41:37 C 06 31 33.08 +36 52 22.2 o 084
2004-04-07 21:18:21 C 06 24 29.67 +35 16 02.6 o 084
2004-04-08 21:15:22 C 06 17 15.63 +33 32 19.0 o 084
2004-04-13 19:43:20 C 05 35 30.50 +21 54 03.7 o 084
2004-06-20 07:41:14 C 23 24 53.61 -48 42 56.1 r 859
2004-06-20 08:09:42 C 23 24 50.43 -48 43 00.6 r 859
2004-06-20 08:16:41 C 23 24 49.36 -48 43 01.7 r 859
2004-06-26 06:58:18 C 23 09 51.38 -49 02 44.7 r 859
2004-07-03 13:16:34 C 22 48 57.31 -49 14 00.3 r E17
2004-07-03 13:20:54 C 22 48 56.82 -49 14 00.6 r E17
2004-07-03 13:25:12 C 22 48 56.22 -49 14 00.1 r E17
2004-07-27 03:44:41 C 21 33 49.27 -46 39 01.1 r 859
2004-07-27 03:49:14 C 21 33 48.79 -46 38 57.7 r 859
2004-07-29 15:35:58 C 21 26 56.93 -46 03 16.7 r E12
2004-07-29 15:53:58 C 21 26 54.83 -46 03 05.5 r E12
2004-07-29 16:11:58 C 21 26 52.67 -46 02 54.0 r E12
2004-07-29 16:30:00 C 21 26 50.60 -46 02 42.4 r E12
2004-08-21 09:50:57 C 20 46 29.67 -39 21 22.2 r E17
2004-08-21 10:28:36 C 20 46 28.10 -39 20 53.4 r E17
2004-08-22 13:50:51 C 20 45 28.18 -38 59 49.4 r E12
2004-08-22 13:58:12 C 20 45 27.90 -38 59 44.3 r E12
2004-08-22 14:05:34 C 20 45 27.62 -38 59 38.1 r E12
2004-08-22 14:12:57 C 20 45 27.26 -38 59 32.5 r E12
2007-10-15 03:43:07 C 01 05 38.40 +06 42 59.0 o 691
2007-10-15 04:08:31 C 01 05 36.99 +06 42 53.9 o 691
2007-10-15 04:33:56 C 01 05 35.55 +06 42 47.8 o 691
2009-01-20 07:05:17 C 08 04 58.62 +44 57 58.5 r 703
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)