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
2004-05-11 07:50:06 C 17 55 05.94 +30 02 39.2 18.5 c 704
2004-05-11 21:54:08 C 17 52 24.34 +30 07 47.2 c 104
2004-05-11 21:59:10 C 17 52 23.51 +30 07 48.4 c 104
2004-05-11 22:05:09 C 17 52 22.39 +30 07 50.3 c 104
2004-05-16 08:10:16 C 17 31 24.79 +30 31 36.6 r H41
2004-05-16 08:12:50 C 17 31 24.30 +30 31 36.7 r H41
2004-05-16 08:15:18 C 17 31 23.78 +30 31 37.0 r H41
2004-05-16 08:17:49 C 17 31 23.34 +30 31 36.4 r H41
2004-05-16 08:23:21 C 17 31 22.14 +30 31 37.2 r H41
2004-05-16 22:16:25 C 17 28 35.18 +30 32 29.5 r 170
2004-05-16 22:18:53 C 17 28 34.67 +30 32 29.8 r 170
2004-05-16 23:09:35 C 17 28 24.07 +30 32 32.3 o 198
2004-05-16 23:10:23 C 17 28 23.94 +30 32 32.4 o 198
2004-05-16 23:12:46 C 17 28 23.45 +30 32 32.5 o 198
2004-05-16 23:13:34 C 17 28 23.28 +30 32 32.5 o 198
2004-05-16 23:17:32 C 17 28 22.45 +30 32 32.6 o 198
2004-05-16 23:20:43 C 17 28 21.81 +30 32 32.7 o 198
2004-05-18 00:31:11 C 17 23 15.88 +30 32 54.6 r 240
2004-05-18 00:32:46 C 17 23 15.59 +30 32 54.8 r 240
2004-05-18 00:34:22 C 17 23 15.35 +30 32 55.3 r 240
2004-05-18 22:35:30 C 17 18 47.91 +30 31 48.1 r 469
2004-05-18 22:45:29 C 17 18 45.71 +30 31 47.3 r 469
2004-05-18 22:56:29 C 17 18 43.32 +30 31 46.4 r 469
2004-05-18 23:07:29 C 17 18 40.98 +30 31 45.7 r 469
2004-05-18 23:17:30 C 17 18 39.02 +30 31 45.3 r 469
2004-05-19 07:45:25 C 17 16 55.39 +30 31 02.6 r H41
2004-05-19 07:48:10 C 17 16 54.83 +30 31 02.3 r H41
2004-05-19 07:50:37 C 17 16 54.25 +30 31 02.0 r H41
2004-05-19 07:53:04 C 17 16 53.68 +30 31 01.8 r H41
2004-05-19 07:55:30 C 17 16 53.26 +30 31 01.4 r H41
2004-05-19 09:21:37 C 17 16 35.68 +30 30 53.6 d 703
2004-05-19 09:39:46 C 17 16 31.92 +30 30 51.3 d 703
2004-05-19 09:57:47 C 17 16 28.17 +30 30 49.2 d 703
2004-05-19 10:15:50 C 17 16 24.39 +30 30 46.9 d 703
2004-05-19 23:34:43 C 17 13 42.99 +30 28 58.7 o 151
2004-05-19 23:35:51 C 17 13 42.72 +30 28 58.7 o 151
2004-05-19 23:36:44 C 17 13 42.58 +30 28 58.7 o 151
2004-05-19 23:37:25 C 17 13 42.41 +30 28 58.3 o 151
2004-05-19 23:38:06 C 17 13 42.29 +30 28 58.6 o 151
2004-05-19 23:39:00 C 17 13 42.10 +30 28 58.4 o 151
2004-05-19 23:39:47 C 17 13 41.95 +30 28 58.1 o 151
2004-05-19 23:41:05 C 17 13 41.68 +30 28 57.8 o 151
2004-05-19 23:42:10 C 17 13 41.46 +30 28 57.8 o 151
2004-05-19 23:43:05 C 17 13 41.26 +30 28 58.0 o 151
2004-05-20 07:58:09 C 17 12 00.44 +30 27 42.8 r H41
2004-05-20 08:00:44 C 17 11 59.88 +30 27 42.6 r H41
2004-05-20 08:03:13 C 17 11 59.35 +30 27 42.1 r H41
2004-05-20 08:05:42 C 17 11 58.81 +30 27 41.3 r H41
2004-05-20 08:08:13 C 17 11 58.32 +30 27 41.1 r H41
2004-05-21 08:01:30 C 17 07 07.93 +30 22 50.5 r H41
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)