85989 (1999 JD6)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6328567975 ± 2.00e+00
Semi-major axis (a)0.8830640064 AU ± 3.00e+00
Inclination (i)17.06723520° ± 4.00e+00
Long. of Asc. Node (Ω)130.14381238° ± 5.00e+00
Arg. of Perihelion (ω)309.26133919° ± 6.00e+00
Mean Anomaly (M)93.49674384° ± 1.28e-05
Mean Motion (n)1.1877471614°/day ± 6.05e+00
Perihelion dist (q)0.32421095 AU ± 2.08e+00
Aphelion dist (Q)1.44191707 AU ± 5.21e+00
Orbital Period0.82982836 yr ± 4.23e+00
NGA Modelr2
A2-6.89086563e-08 AU/d²
Physical Parameters
H (abs. magnitude)17.07
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-27
RMS Residual0.280″
Uncertainty0
Orbit TypeAten
MOID0.048426 AU
Observations Used3582
Gaia Obs Used27
Oppositions5
Arc Total1990-2025
First Observation Used1990-06-22
Last Observation Used2025-07-13
Observations (3862)
Date Type RA Dec Mag Band Observatory
2004-05-21 08:03:44 C 17 07 07.50 +30 22 49.3 r H41
2004-05-21 08:05:59 C 17 07 07.03 +30 22 49.1 r H41
2004-05-21 08:08:06 C 17 07 06.57 +30 22 48.5 r H41
2004-05-21 08:12:39 C 17 07 05.61 +30 22 47.3 r H41
2004-05-21 21:59:45 C 17 04 19.48 +30 19 10.9 c 127
2004-05-21 22:17:17 C 17 04 15.91 +30 19 06.6 c 127
2004-05-21 22:24:04 C 17 04 14.51 +30 19 04.6 c 127
2004-05-21 23:25:10 C 17 04 01.94 +30 18 48.5 c 127
2004-05-22 07:40:53 C 17 02 21.64 +30 16 30.6 r H41
2004-05-22 07:43:02 C 17 02 21.19 +30 16 30.2 r H41
2004-05-22 07:45:10 C 17 02 20.75 +30 16 29.1 r H41
2004-05-22 07:47:19 C 17 02 20.24 +30 16 28.6 r H41
2004-05-22 07:52:38 C 17 02 19.21 +30 16 26.8 r H41
2004-05-22 21:39:08 C 16 59 34.01 +30 11 58.6 r A16
2004-05-22 21:43:30 C 16 59 33.14 +30 11 57.5 r A16
2004-05-22 21:46:30 C 16 59 32.51 +30 11 56.1 r A16
2004-05-22 21:48:46 C 16 59 32.05 +30 11 55.3 r A16
2004-05-22 21:51:46 C 16 59 31.45 +30 11 54.7 r A16
2004-05-22 21:54:48 C 16 59 30.83 +30 11 53.6 r A16
2004-05-22 21:59:18 C 16 59 29.92 +30 11 52.0 r A16
2004-05-22 22:01:33 C 16 59 29.43 +30 11 51.1 r A16
2004-05-22 22:26:03 C 16 59 24.04 +30 11 50.2 c 097
2004-05-22 22:51:43 C 16 59 18.75 +30 11 41.5 c 097
2004-05-22 23:17:18 C 16 59 13.50 +30 11 32.7 c 097
2004-05-22 23:42:55 C 16 59 08.22 +30 11 23.7 c 097
2004-05-23 00:08:36 C 16 59 02.94 +30 11 14.8 c 097
2004-05-23 00:34:16 C 16 58 57.68 +30 11 05.5 c 097
2004-05-23 00:59:55 C 16 58 52.43 +30 10 56.1 c 097
2004-05-23 01:26:31 C 16 58 46.99 +30 10 46.3 c 097
2004-05-23 01:53:34 C 16 58 41.46 +30 10 36.2 c 097
2004-05-23 15:02:19 C 16 56 05.15 +30 05 49.9 m 300
2004-05-23 15:04:19 C 16 56 04.72 +30 05 48.9 m 300
2004-05-23 15:10:14 C 16 56 03.52 +30 05 46.7 m 300
2004-05-23 15:14:15 C 16 56 02.70 +30 05 44.8 m 300
2004-05-23 15:18:26 C 16 56 01.81 +30 05 43.7 m 300
2004-05-23 15:20:25 C 16 56 01.44 +30 05 42.7 m 300
2004-05-23 21:16:57 C 16 54 50.94 +30 03 16.9 r A16
2004-05-23 21:19:17 C 16 54 50.43 +30 03 16.0 r A16
2004-05-23 21:23:24 C 16 54 49.62 +30 03 14.5 r A16
2004-05-23 21:26:57 C 16 54 48.91 +30 03 13.3 r A16
2004-05-23 21:28:07 C 16 54 48.64 +30 03 12.6 r A16
2004-05-23 21:31:01 C 16 54 48.06 +30 03 12.1 r A16
2004-05-23 21:32:45 C 16 54 47.71 +30 03 10.7 r A16
2004-05-24 14:57:40 C 16 51 20.20 +29 55 55.9 r 379
2004-05-24 15:00:49 C 16 51 19.54 +29 55 54.7 r 379
2004-05-24 15:07:06 C 16 51 18.19 +29 55 52.5 r 379
2004-05-24 15:10:16 C 16 51 17.57 +29 55 50.6 r 379
2004-05-24 23:16:25 C 16 49 42.00 +29 52 06.1 d 560
2004-05-24 23:18:12 C 16 49 41.65 +29 52 05.4 d 560
2004-05-24 23:21:11 C 16 49 41.03 +29 52 03.8 d 560
Radar Observations (15)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2010-07-25 23:57:00 24147.172 0.76 Hz 2380 -1 -1
2015-07-15 06:38:00 125503251.12 0.79 us 2380 -1 -1
2015-07-23 03:21:00 53986569.23 0.66 us 8560 -14 -14
2015-07-23 06:28:00 53319673.64 0.62 us 8560 -14 -14
2015-07-24 23:58:00 58503.203 1 Hz 8560 -14 -14
2015-07-25 00:39:00 48341993.44 0.62 us 8560 -14 -14
2015-07-27 23:36:00 58257478.69 1.17 us 8560 -14 -14
2015-07-28 23:01:00 -795663.707 2 Hz 8560 -14 -14
2015-07-29 01:21:00 66176190.42 0.79 us 8560 -14 -14
2015-07-29 17:29:00 -240761.688 0.31 Hz 2380 -1 -1
2015-07-29 18:14:00 72104690.28 0.61 us 2380 -1 -1
2015-07-30 17:25:00 80974186.48 0.64 us 2380 -1 -1
2015-07-31 17:26:00 90816962.05 0.64 us 2380 -1 -1
2015-08-02 17:50:00 112047864.21 0.79 us 2380 -1 -1
2015-08-04 17:20:00 134129332.19 2 us 2380 -1 -1
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)