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
2004-05-24 23:31:30 C 16 49 38.98 +29 51 57.8 r 240
2004-05-24 23:35:07 C 16 49 38.23 +29 51 56.1 r 240
2004-05-24 23:38:43 C 16 49 37.51 +29 51 54.4 r 240
2004-05-24 23:45:56 C 16 49 36.03 +29 51 51.1 r 240
2004-05-24 23:47:31 C 16 49 35.73 +29 51 50.3 r 240
2004-05-24 23:49:09 C 16 49 35.38 +29 51 49.6 r 240
2004-05-24 23:53:53 C 16 49 34.46 +29 51 47.3 r 240
2004-05-24 23:59:40 C 16 49 33.40 +29 51 45.5 r A13
2004-05-25 00:01:26 C 16 49 33.07 +29 51 44.5 r A13
2004-05-25 00:03:21 C 16 49 32.67 +29 51 43.7 r A13
2004-05-25 00:05:17 C 16 49 32.27 +29 51 42.9 r A13
2004-05-25 00:08:43 C 16 49 31.59 +29 51 41.4 r A13
2004-05-25 14:26:01 C 16 46 43.85 +29 44 48.6 r 379
2004-05-25 14:32:20 C 16 46 42.53 +29 44 44.8 r 379
2004-05-25 14:44:56 C 16 46 39.98 +29 44 39.4 r 379
2004-05-25 23:48:22 C 16 44 53.98 +29 39 55.5 r A41
2004-05-26 00:12:46 C 16 44 49.11 +29 39 41.9 r A41
2004-05-26 00:37:03 C 16 44 44.31 +29 39 29.7 r A41
2004-05-26 21:43:05 C 16 40 40.77 +29 27 45.4 c A35
2004-05-26 21:51:01 C 16 40 39.21 +29 27 41.0 c A35
2004-05-26 21:56:18 C 16 40 38.15 +29 27 37.8 c A35
2004-05-27 06:51:02 C 16 38 55.45 +29 22 27.0 r H41
2004-05-27 06:57:03 C 16 38 54.29 +29 22 23.1 r H41
2004-05-27 06:59:34 C 16 38 53.77 +29 22 22.3 r H41
2004-05-27 07:02:15 C 16 38 53.33 +29 22 21.0 r H41
2004-05-27 20:28:16 C 16 36 20.99 +29 14 02.9 c 097
2004-05-27 20:49:49 C 16 36 16.83 +29 13 49.6 c 097
2004-05-27 21:11:26 C 16 36 12.61 +29 13 36.1 c 097
2004-05-27 21:33:02 C 16 36 08.43 +29 13 22.6 c 097
2004-05-27 21:54:37 C 16 36 04.25 +29 13 08.8 c 097
2004-05-27 22:16:14 C 16 36 00.07 +29 12 55.1 c 097
2004-05-27 22:37:50 C 16 35 55.86 +29 12 41.0 c 097
2004-05-27 22:59:28 C 16 35 51.67 +29 12 27.1 c 097
2004-05-27 23:21:02 C 16 35 47.49 +29 12 13.2 c 097
2004-05-28 20:28:09 C 16 31 51.64 +28 58 05.6 c 113
2004-05-28 20:29:25 C 16 31 51.40 +28 58 03.6 c 113
2004-05-28 20:30:40 C 16 31 51.11 +28 58 03.5 c 113
2004-05-28 20:31:56 C 16 31 50.92 +28 58 01.9 c 113
2004-05-28 20:33:12 C 16 31 50.70 +28 58 01.2 c 113
2004-05-28 21:13:20 C 16 31 43.15 +28 57 34.4 r 151
2004-05-28 21:18:55 C 16 31 42.11 +28 57 30.5 r 151
2004-05-28 21:21:21 C 16 31 41.64 +28 57 29.0 r 151
2004-05-28 21:21:49 C 16 31 41.56 +28 57 29.1 r 151
2004-05-28 22:03:01 C 16 31 33.88 +28 57 00.9 r A16
2004-05-28 22:11:16 C 16 31 32.20 +28 56 55.0 r A16
2004-05-28 22:15:47 C 16 31 31.34 +28 56 51.9 r A16
2004-05-28 22:18:47 C 16 31 30.77 +28 56 49.2 r A16
2004-05-29 06:55:37 C 16 29 55.18 +28 50 52.1 17.0 c 704
2004-05-29 07:05:38 C 16 29 52.99 +28 50 44.0 r H41
2004-05-29 07:07:55 C 16 29 52.83 +28 50 43.5 17.3 c 704
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)