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
2005-05-06 10:20:16 C 20 09 22.48 +02 40 06.1 18.5 c 704
2005-05-06 10:34:41 C 20 09 22.78 +02 40 13.5 18.5 c 704
2005-06-01 07:47:53 C 20 08 52.55 +08 09 24.7 18.3 c 704
2005-06-01 08:02:37 C 20 08 51.98 +08 09 32.7 18.5 c 704
2005-06-01 08:17:19 C 20 08 51.48 +08 09 40.7 18.8 c 704
2005-06-01 08:32:03 C 20 08 50.95 +08 09 48.6 18.9 c 704
2005-06-01 08:46:48 C 20 08 50.45 +08 09 55.7 19.1 c 704
2005-06-08 00:35:24 C 20 01 35.95 +09 34 58.3 c 097
2005-06-08 00:59:18 C 20 01 34.46 +09 35 10.5 c 097
2005-06-08 01:10:13 C 20 01 33.76 +09 35 16.2 c 097
2005-06-08 01:22:54 C 20 01 32.96 +09 35 22.8 c 097
2005-06-08 01:46:43 C 20 01 31.47 +09 35 35.3 c 097
2005-06-10 23:36:20 C 19 56 58.89 +10 11 07.6 o 151
2005-06-10 23:37:52 C 19 56 58.81 +10 11 08.5 o 151
2005-06-10 23:38:23 C 19 56 58.79 +10 11 08.9 o 151
2005-06-19 23:12:01 C 19 36 14.17 +11 47 56.3 o 198
2005-06-19 23:13:03 C 19 36 14.04 +11 47 56.7 o 198
2005-06-19 23:15:06 C 19 36 13.78 +11 47 57.6 o 198
2005-06-19 23:18:10 C 19 36 13.38 +11 47 58.6 o 198
2005-06-19 23:19:13 C 19 36 13.25 +11 47 59.1 o 198
2005-06-19 23:34:53 C 19 36 11.27 +11 48 05.1 o 198
2005-06-22 22:18:48 C 19 26 45.31 +12 12 33.9 o 198
2005-06-22 22:28:13 C 19 26 43.97 +12 12 36.8 o 198
2005-06-22 22:29:01 C 19 26 43.84 +12 12 37.0 o 198
2005-06-26 22:05:26 C 19 11 31.97 +12 36 24.9 17.7 r 160
2005-06-26 22:07:33 C 19 11 31.63 +12 36 25.8 17.2 r 160
2005-06-26 22:09:40 C 19 11 31.21 +12 36 26.1 16.7 r 160
2005-06-26 22:11:46 C 19 11 30.86 +12 36 26.4 17.3 r 160
2005-06-30 06:37:24 C 18 56 21.80 +12 45 19.6 17.8 c 704
2005-06-30 06:52:04 C 18 56 18.73 +12 45 20.4 18.1 c 704
2005-06-30 07:06:48 C 18 56 15.69 +12 45 20.7 18.0 c 704
2005-06-30 07:36:13 C 18 56 09.49 +12 45 20.4 17.7 c 704
2005-07-01 21:43:11 C 18 48 11.46 +12 44 50.1 r A30
2005-07-01 21:48:28 C 18 48 10.30 +12 44 50.4 r A30
2005-07-05 21:14:09 C 18 25 59.59 +12 28 10.8 r 203
2005-07-05 23:17:27 C 18 25 28.17 +12 27 33.0 r 203
2005-07-08 05:54:48 C 18 11 23.42 +12 06 09.3 r 750
2005-07-08 06:00:29 C 18 11 21.87 +12 06 06.4 r 750
2005-07-08 06:06:35 C 18 11 20.20 +12 06 03.5 r 750
2005-07-08 06:13:50 C 18 11 18.23 +12 06 00.1 r 750
2005-07-08 06:16:38 C 18 11 17.47 +12 05 58.8 r 750
2005-07-08 22:33:29 C 18 06 55.86 +11 57 44.9 r J94
2005-07-08 23:01:02 C 18 06 48.30 +11 57 30.2 r J94
2005-07-08 23:36:42 C 18 06 38.36 +11 57 11.4 r J94
2005-07-10 22:25:18 C 17 53 40.21 +11 28 43.1 r J94
2005-07-10 22:48:00 C 17 53 33.65 +11 28 27.4 r J94
2005-07-10 23:18:08 C 17 53 24.91 +11 28 06.8 r J94
2005-07-11 22:25:26 C 17 46 48.80 +11 11 19.5 c J93
2005-07-11 22:31:33 C 17 46 46.96 +11 11 14.3 c J93
2005-07-11 22:34:35 C 17 46 45.98 +11 11 11.7 c J93
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)