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
2000-06-19 22:30:00 C 18 48 31.98 +12 33 36.7 610
2000-06-20 21:45:00 C 18 44 44.22 +12 35 38.5 610
2000-06-20 21:49:59 C 18 44 43.36 +12 35 38.7 610
2000-06-20 21:54:59 C 18 44 42.50 +12 35 39.0 610
2000-06-20 22:00:00 C 18 44 41.65 +12 35 39.2 610
2000-06-20 22:05:00 C 18 44 40.79 +12 35 39.4 610
2000-06-21 22:04:02 C 18 40 38.07 +12 36 45.6 610
2000-06-21 22:08:02 C 18 40 37.38 +12 36 45.7 610
2000-06-21 22:12:01 C 18 40 36.68 +12 36 45.9 610
2000-06-21 22:16:01 C 18 40 35.98 +12 36 46.1 610
2000-06-21 22:20:02 C 18 40 35.28 +12 36 46.3 610
2000-06-22 22:14:00 C 18 36 26.07 +12 36 50.3 610
2000-06-22 22:18:01 C 18 36 25.34 +12 36 50.3 610
2000-06-22 22:22:01 C 18 36 24.60 +12 36 50.2 610
2000-06-22 22:26:00 C 18 36 23.87 +12 36 50.2 610
2000-06-22 22:30:00 C 18 36 23.13 +12 36 50.2 610
2000-06-25 14:37:30 C 18 24 39.11 +12 31 39.3 360
2000-06-25 14:39:59 C 18 24 38.62 +12 31 38.8 360
2000-06-25 14:42:59 C 18 24 38.05 +12 31 38.4 360
2000-06-25 22:50:14 C 18 23 04.86 +12 30 20.0 071
2000-06-25 22:56:15 C 18 23 03.73 +12 30 18.8 071
2000-06-25 23:02:17 C 18 23 02.65 +12 30 18.1 071
2000-06-26 22:02:59 C 18 18 37.00 +12 25 56.6 610
2000-06-26 22:07:00 C 18 18 36.20 +12 25 55.8 610
2000-06-26 22:11:00 C 18 18 35.41 +12 25 54.9 610
2000-06-26 22:14:59 C 18 18 34.62 +12 25 54.0 610
2000-06-27 22:38:28 C 18 13 45.40 +12 20 00.6 071
2000-06-27 22:43:28 C 18 13 44.70 +12 20 00.0 071
2000-06-27 22:48:30 C 18 13 43.50 +12 19 58.7 071
2000-06-27 23:25:43 C 18 13 36.64 +12 19 46.4 c 127
2000-06-27 23:32:28 C 18 13 35.25 +12 19 44.7 c 127
2000-06-28 23:22:18 C 18 08 47.19 +12 12 41.2 071
2000-06-28 23:27:41 C 18 08 46.30 +12 12 39.9 071
2000-06-28 23:32:41 C 18 08 45.27 +12 12 38.0 071
2000-06-29 21:09:59 C 18 04 21.03 +12 05 04.1 610
2000-06-29 21:13:59 C 18 04 20.19 +12 05 02.7 610
2000-06-29 21:17:59 C 18 04 19.34 +12 05 01.3 610
2000-06-29 21:22:00 C 18 04 18.49 +12 04 59.8 610
2000-06-29 21:26:00 C 18 04 17.65 +12 04 58.4 610
2000-06-29 22:31:26 C 18 04 03.76 +12 04 32.0 118
2000-06-29 22:42:21 C 18 04 01.45 +12 04 27.9 118
2000-06-30 21:50:11 C 17 59 13.75 +11 55 05.6 z 151
2000-06-30 21:53:41 C 17 59 13.10 +11 55 03.9 z 151
2000-06-30 21:57:10 C 17 59 12.31 +11 55 02.5 z 151
2000-06-30 22:00:35 C 17 59 11.54 +11 55 00.8 z 151
2000-06-30 22:04:09 C 17 59 10.78 +11 54 59.3 z 151
2000-07-01 14:01:26 C 17 55 49.77 +11 47 50.8 300
2000-07-01 14:04:38 C 17 55 49.06 +11 47 48.8 300
2000-07-01 14:37:06 C 17 55 41.85 +11 47 33.8 m 349
2000-07-01 14:40:47 C 17 55 41.08 +11 47 31.2 m 349
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)