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
2004-06-06 21:13:09 C 15 55 38.94 +25 45 01.3 r 240
2004-06-06 21:18:44 C 15 55 38.10 +25 44 55.5 r 240
2004-06-06 21:21:55 C 15 55 37.63 +25 44 52.1 r 240
2004-06-06 21:25:06 C 15 55 37.14 +25 44 48.7 r 240
2004-06-06 21:26:42 C 15 55 36.90 +25 44 47.1 r 240
2004-06-07 21:02:45 C 15 52 12.79 +25 19 32.5 r A41
2004-06-07 21:19:11 C 15 52 10.42 +25 19 14.7 r A41
2004-06-07 21:35:35 C 15 52 08.03 +25 18 55.8 r A41
2004-06-08 06:48:04 C 15 50 49.78 +25 08 57.9 r H41
2004-06-08 06:50:35 C 15 50 49.46 +25 08 55.0 r H41
2004-06-08 06:53:00 C 15 50 49.09 +25 08 51.8 r H41
2004-06-08 06:55:23 C 15 50 48.78 +25 08 50.2 r H41
2004-06-08 06:57:59 C 15 50 48.39 +25 08 46.9 r H41
2004-06-08 07:01:00 C 15 50 48.00 +25 08 43.4 r H41
2004-06-08 07:19:47 C 15 50 45.26 +25 08 23.4 r H41
2004-06-08 07:34:41 C 15 50 43.13 +25 08 06.4 r H41
2004-06-08 21:15:08 C 15 48 50.65 +24 53 00.2 r A16
2004-06-08 21:19:59 C 15 48 49.99 +24 52 54.4 r A16
2004-06-08 21:24:46 C 15 48 49.28 +24 52 49.8 r A16
2004-06-08 21:29:31 C 15 48 48.58 +24 52 44.3 r A16
2004-06-08 21:34:18 C 15 48 47.94 +24 52 39.4 r A16
2004-06-09 05:39:47 C 15 47 41.93 +24 43 43.5 19.0 c 704
2004-06-09 05:54:11 C 15 47 39.87 +24 43 27.9 18.8 c 704
2004-06-09 06:08:43 C 15 47 37.84 +24 43 11.1 18.6 c 704
2004-06-09 06:23:07 C 15 47 35.84 +24 42 55.0 18.5 c 704
2004-06-09 21:06:33 C 15 45 38.32 +24 26 18.2 r A16
2004-06-09 21:09:32 C 15 45 37.92 +24 26 15.0 r A16
2004-06-09 21:12:13 C 15 45 37.56 +24 26 12.1 r A16
2004-06-09 21:18:08 C 15 45 36.74 +24 26 05.0 r A16
2004-06-09 21:21:05 C 15 45 36.34 +24 26 01.7 r A16
2004-06-09 21:24:02 C 15 45 35.95 +24 25 58.4 r A16
2004-06-11 07:58:16 C 15 41 08.90 +23 46 25.6 r H41
2004-06-11 08:00:43 C 15 41 08.50 +23 46 22.9 r H41
2004-06-11 08:04:12 C 15 41 08.14 +23 46 18.9 r H41
2004-06-11 08:06:45 C 15 41 07.78 +23 46 16.0 r H41
2004-06-11 08:09:17 C 15 41 07.48 +23 46 12.6 r H41
2004-06-12 07:20:40 C 15 38 17.30 +23 19 10.7 r H41
2004-06-12 07:23:24 C 15 38 16.87 +23 19 06.9 r H41
2004-06-12 07:25:00 C 15 38 16.952 +23 19 07.35 645
2004-06-12 07:26:11 C 15 38 16.805 +23 19 05.96 645
2004-06-12 07:26:43 C 15 38 16.53 +23 19 03.6 r H41
2004-06-12 07:27:23 C 15 38 16.658 +23 19 04.81 645
2004-06-12 07:28:35 C 15 38 16.508 +23 19 03.22 645
2004-06-12 07:29:24 C 15 38 16.21 +23 19 00.7 r H41
2004-06-12 07:29:46 C 15 38 16.364 +23 19 01.86 645
2004-06-12 07:31:52 C 15 38 15.86 +23 18 57.5 r H41
2004-06-13 02:28:00 C 15 36 02.56 +22 56 37.1 c 932
2004-06-13 02:53:00 C 15 35 59.61 +22 56 07.6 c 932
2004-06-13 03:02:59 C 15 35 58.41 +22 55 55.8 c 932
2004-06-16 05:28:22 C 15 27 53.30 +21 26 25.2 d 703
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)