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
2004-05-29 07:08:02 C 16 29 52.54 +28 50 42.7 r H41
2004-05-29 07:10:07 C 16 29 52.12 +28 50 41.5 r H41
2004-05-29 07:12:16 C 16 29 51.67 +28 50 39.6 r H41
2004-05-29 07:14:36 C 16 29 51.30 +28 50 37.6 r H41
2004-05-29 07:19:56 C 16 29 50.55 +28 50 35.0 17.2 c 704
2004-05-29 07:32:44 C 16 29 48.14 +28 50 25.7 17.6 c 704
2004-05-29 07:44:55 C 16 29 45.82 +28 50 17.1 17.1 c 704
2004-05-29 22:14:32 C 16 27 07.35 +28 39 39.3 r A16
2004-05-29 22:17:55 C 16 27 06.78 +28 39 36.4 r A16
2004-05-29 22:21:17 C 16 27 06.10 +28 39 34.3 r A16
2004-05-29 22:24:37 C 16 27 05.51 +28 39 31.8 r A16
2004-05-29 22:27:45 C 16 27 04.91 +28 39 29.2 r A16
2004-05-29 22:40:23 C 16 27 02.53 +28 39 19.9 r 198
2004-05-29 22:44:29 C 16 27 01.77 +28 39 17.1 r 198
2004-05-29 22:54:42 C 16 26 59.88 +28 39 09.5 r 198
2004-05-29 23:04:56 C 16 26 57.99 +28 39 01.8 r 198
2004-05-29 23:15:09 C 16 26 56.10 +28 38 54.2 r 198
2004-05-30 21:21:33 C 16 22 58.11 +28 21 56.1 17.2 r 130
2004-05-30 21:25:54 C 16 22 57.32 +28 21 51.9 17.2 r 130
2004-05-30 21:30:15 C 16 22 56.53 +28 21 49.0 17.3 r 130
2004-05-30 21:34:36 C 16 22 55.77 +28 21 45.3 17.3 r 130
2004-05-31 07:33:10 C 16 21 08.94 +28 13 49.5 r H41
2004-05-31 07:35:35 C 16 21 08.41 +28 13 46.6 r H41
2004-05-31 07:38:06 C 16 21 08.05 +28 13 45.2 r H41
2004-05-31 07:40:27 C 16 21 07.57 +28 13 43.6 r H41
2004-05-31 07:42:34 C 16 21 07.20 +28 13 41.8 r H41
2004-06-01 06:37:50 C 16 17 07.87 +27 54 36.7 r H41
2004-06-01 06:40:14 C 16 17 07.49 +27 54 35.7 r H41
2004-06-01 06:42:25 C 16 17 06.98 +27 54 32.9 r H41
2004-06-01 06:44:32 C 16 17 06.63 +27 54 31.1 r H41
2004-06-01 06:46:40 C 16 17 06.26 +27 54 29.3 r H41
2004-06-01 06:48:48 C 16 17 05.94 +27 54 27.9 r H41
2004-06-04 22:43:01 C 16 02 40.63 +26 32 49.6 r J87
2004-06-04 22:45:07 C 16 02 40.34 +26 32 47.4 r J87
2004-06-04 22:47:14 C 16 02 40.00 +26 32 45.1 r J87
2004-06-05 05:40:05 C 16 01 35.68 +26 25 54.0 r H41
2004-06-05 05:43:34 C 16 01 35.19 +26 25 50.7 r H41
2004-06-05 05:55:31 C 16 01 33.19 +26 25 38.0 r H41
2004-06-06 20:49:31 C 15 55 42.49 +25 45 26.9 r 185
2004-06-06 20:51:24 C 15 55 42.25 +25 45 24.7 r 185
2004-06-06 20:54:49 C 15 55 41.69 +25 45 21.1 o 151
2004-06-06 20:55:35 C 15 55 41.61 +25 45 20.4 r 185
2004-06-06 20:56:10 C 15 55 41.45 +25 45 19.5 o 151
2004-06-06 20:57:27 C 15 55 41.32 +25 45 18.7 r 185
2004-06-06 20:57:47 C 15 55 41.25 +25 45 18.1 o 151
2004-06-06 20:59:16 C 15 55 41.04 +25 45 16.2 o 151
2004-06-06 20:59:16 C 15 55 41.04 +25 45 16.6 r 185
2004-06-06 21:03:37 C 15 55 40.37 +25 45 11.5 r 240
2004-06-06 21:06:47 C 15 55 39.90 +25 45 08.1 r 240
2004-06-06 21:09:57 C 15 55 39.42 +25 45 04.7 r 240
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)