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
2010-07-12 21:44:53 C 18 54 32.02 +16 25 54.6 u A06
2010-07-12 21:48:42 C 18 54 30.56 +16 25 55.5 u A06
2010-07-14 22:14:29 C 18 35 49.50 +16 34 39.1 u 160
2010-07-14 22:16:14 C 18 35 48.75 +16 34 39.2 u 160
2010-07-14 22:18:10 C 18 35 47.94 +16 34 39.5 u 160
2010-07-15 07:26:02 C 18 31 56.54 +16 35 14.8 u H45
2010-07-15 07:28:37 C 18 31 55.40 +16 35 14.9 u H45
2010-07-15 07:30:13 C 18 31 54.71 +16 35 14.9 u H45
2010-07-15 07:33:04 C 18 31 53.48 +16 35 14.9 u H45
2010-07-15 07:35:22 C 18 31 52.49 +16 35 14.9 u H45
2010-07-15 07:36:57 C 18 31 51.79 +16 35 14.9 u H45
2010-07-15 20:32:54 C 18 26 17.37 +16 35 04.9 o 585
2010-07-15 20:37:00 C 18 26 15.53 +16 35 04.7 o 585
2010-07-15 20:47:24 C 18 26 10.83 +16 35 04.4 o 585
2010-07-15 20:54:33 C 18 26 07.61 +16 35 04.0 o 585
2010-07-15 20:57:35 C 18 26 06.22 +16 35 03.9 o 585
2010-07-15 21:00:39 C 18 26 04.86 +16 35 03.8 o 585
2010-07-15 21:03:42 C 18 26 03.48 +16 35 03.7 o 585
2010-07-15 21:06:46 C 18 26 02.06 +16 35 03.6 o 585
2010-07-15 21:09:50 C 18 26 00.72 +16 35 03.6 o 585
2010-07-15 21:23:02 C 18 25 54.76 +16 35 03.0 o 585
2010-07-15 21:39:21 C 18 25 47.40 +16 35 01.9 o 585
2010-07-15 21:49:33 C 18 25 42.76 +16 35 01.7 o 585
2010-07-15 21:54:38 C 18 25 40.46 +16 35 01.4 o 585
2010-07-15 21:58:43 C 18 25 38.59 +16 35 01.0 o 585
2010-07-15 22:02:47 C 18 25 36.75 +16 35 00.9 o 585
2010-07-15 22:07:50 C 18 25 35.42 +16 35 00.9 c 127
2010-07-15 22:14:19 C 18 25 31.58 +16 35 00.4 o 585
2010-07-15 22:17:24 C 18 25 31.08 +16 35 00.4 c 127
2010-07-15 22:17:55 C 18 25 30.84 +16 35 01.2 o 196
2010-07-15 22:21:46 C 18 25 29.11 +16 35 00.2 c 127
2010-07-15 22:22:28 C 18 25 27.89 +16 34 59.7 o 585
2010-07-15 22:22:30 C 18 25 28.64 +16 35 03.6 u 204
2010-07-15 22:25:03 C 18 25 27.61 +16 34 59.9 c 127
2010-07-15 22:27:34 C 18 25 25.58 +16 34 59.6 o 585
2010-07-15 22:28:03 C 18 25 26.25 +16 35 00.0 c 127
2010-07-15 22:29:09 C 18 25 25.71 +16 35 00.7 o 196
2010-07-15 22:32:40 C 18 25 23.27 +16 34 59.2 o 585
2010-07-15 22:36:46 C 18 25 21.43 +16 34 59.0 o 585
2010-07-15 22:44:25 C 18 25 18.79 +16 34 59.9 o 196
2010-07-15 22:59:20 C 18 25 11.93 +16 35 01.6 u 204
2010-07-15 23:08:28 C 18 25 07.09 +16 34 56.8 o 585
2010-07-15 23:19:41 C 18 25 01.99 +16 34 56.0 o 585
2010-07-15 23:22:45 C 18 25 01.28 +16 35 00.2 u 204
2010-07-15 23:37:01 C 18 24 54.12 +16 34 54.5 o 585
2010-07-15 23:42:36 C 18 24 51.63 +16 34 54.1 o 585
2010-07-15 23:47:49 C 18 24 49.25 +16 34 53.7 o 585
2010-07-15 23:54:57 C 18 24 46.00 +16 34 53.0 o 585
2010-07-16 00:01:04 C 18 24 43.26 +16 34 52.6 o 585
2010-07-16 00:08:13 C 18 24 40.04 +16 34 51.9 o 585
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)