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
2018-05-20 10:24:08 C 11 46 19.09 +56 32 49.7 U T08
2018-05-22 05:39:44 C 11 57 00.05 +54 05 03.0 U 703
2018-05-22 05:47:30 C 11 57 01.77 +54 04 36.7 U 703
2018-05-22 05:55:16 C 11 57 03.50 +54 04 10.3 U 703
2018-05-22 06:03:02 C 11 57 05.19 +54 03 43.9 U 703
2018-05-25 05:14:51 C 12 11 19.92 +50 11 16.7 U 703
2018-05-25 05:22:32 C 12 11 21.21 +50 10 52.0 U 703
2018-05-25 05:30:14 C 12 11 22.50 +50 10 27.7 U 703
2018-05-25 05:37:55 C 12 11 23.81 +50 10 03.0 U 703
2018-05-30 01:37:29 C 12 28 49.52 +44 23 12.4 q I15
2018-05-30 01:40:40 C 12 28 49.97 +44 23 03.7 q I15
2018-05-30 01:43:51 C 12 28 50.34 +44 22 54.2 q I15
2018-06-02 05:46:15 C 12 37 47.77 +40 56 47.1 U 703
2018-06-02 05:54:00 C 12 37 48.56 +40 56 27.0 U 703
2018-06-02 06:01:45 C 12 37 49.39 +40 56 06.6 U 703
2018-06-02 06:32:23 C 12 37 52.56 +40 54 45.8 U 703
2018-06-05 08:08:30 C 12 45 20.87 +37 50 16.5 U T08
2018-06-05 08:22:00 C 12 45 22.10 +37 49 43.8 U T08
2018-06-05 08:40:41 C 12 45 23.82 +37 48 58.1 U T08
2018-06-05 08:47:36 C 12 45 24.30 +37 48 41.3 U T08
2018-06-06 04:16:01 C 12 47 14.17 +37 02 07.7 U G96
2018-06-06 04:23:32 C 12 47 14.82 +37 01 49.9 U G96
2018-06-06 04:31:02 C 12 47 15.48 +37 01 32.0 U G96
2018-06-06 04:38:31 C 12 47 16.14 +37 01 14.3 U G96
2018-06-06 08:37:01 C 12 47 37.74 +36 51 53.3 U T05
2018-06-06 08:53:15 C 12 47 39.12 +36 51 14.8 U T05
2018-06-06 09:10:17 C 12 47 40.62 +36 50 34.2 U T05
2018-06-06 09:25:54 C 12 47 42.00 +36 49 57.0 U T05
2018-06-07 04:48:37 C 12 49 27.35 +36 04 45.3 U I41
2018-06-07 04:50:00 C 12 49 27.47 +36 04 41.9 U I41
2018-06-07 04:51:22 C 12 49 27.58 +36 04 38.9 U I41
2018-06-07 05:11:28 C 12 49 29.28 +36 03 52.2 U I41
2018-06-07 05:41:58 C 12 49 31.87 +36 02 41.6 U I41
2018-06-07 05:46:00 C 12 49 32.22 +36 02 32.1 U I41
2018-06-09 05:37:07 C 12 53 38.69 +34 14 46.0 U 703
2018-06-09 05:52:14 C 12 53 39.83 +34 14 12.4 U 703
2018-06-09 05:59:47 C 12 53 40.51 +34 13 55.4 U 703
2018-06-10 09:04:51 C 12 55 53.42 +33 15 11.6 U T05
2018-06-10 09:21:23 C 12 55 54.73 +33 14 36.2 U T05
2018-06-10 09:31:11 C 12 55 55.50 +33 14 14.7 U T05
2018-06-12 08:15:20 C 12 59 35.85 +31 36 25.2 U T08
2018-06-12 08:26:57 C 12 59 36.71 +31 36 01.2 U T08
2018-06-12 08:41:44 C 12 59 37.78 +31 35 30.3 U T08
2018-06-12 08:43:59 C 12 59 37.87 +31 35 26.2 U T08
2018-06-12 08:58:44 C 12 59 39.13 +31 34 55.6 U T08
2018-06-12 09:00:14 C 12 59 39.12 +31 34 50.5 U T08
2018-06-12 09:14:31 C 12 59 40.21 +31 34 22.5 U T08
2018-06-15 21:00:00 C 13 05 51.00 +28 49 26.1 q 160
2018-06-15 21:03:38 C 13 05 51.27 +28 49 19.1 q 160
2018-06-15 21:07:19 C 13 05 51.57 +28 49 11.8 q 160
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)