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
2009-06-17 23:46:09 C 15 56 08.51 +19 07 10.2 r A16
2009-06-30 05:09:11 C 15 27 34.71 +13 48 45.3 r H53
2009-06-30 05:17:58 C 15 27 33.92 +13 48 36.2 r H53
2009-06-30 05:22:32 C 15 27 33.58 +13 48 32.2 r H53
2009-06-30 05:26:25 C 15 27 33.24 +13 48 25.9 r H53
2009-06-30 05:29:24 C 15 27 33.07 +13 48 24.1 r H53
2009-07-03 20:49:13 C 15 21 49.60 +12 10 39.3 o B88
2009-07-03 20:57:46 C 15 21 49.07 +12 10 29.4 o B88
2009-07-03 21:38:52 C 15 21 46.57 +12 09 44.4 o B88
2009-07-13 22:19:49 C 15 11 29.20 +07 47 04.1 r A16
2009-07-13 22:35:46 C 15 11 28.72 +07 46 48.3 r A16
2009-07-13 22:51:44 C 15 11 28.27 +07 46 29.9 r A16
2009-07-13 23:07:42 C 15 11 27.88 +07 46 15.2 r A16
2010-04-24 17:34:58 S 20 11 56.53 -00 50 29.7 L C51
2010-04-24 20:45:29 S 20 12 05.76 -00 49 04.4 L C51
2010-04-24 23:56:00 S 20 12 14.95 -00 47 39.7 L C51
2010-04-25 03:06:31 S 20 12 24.13 -00 46 14.4 L C51
2010-04-25 06:17:02 S 20 12 33.30 -00 44 48.9 L C51
2010-04-25 07:52:12 S 20 12 37.90 -00 44 06.6 L C51
2010-04-25 09:27:33 S 20 12 42.45 -00 43 24.2 L C51
2010-04-25 11:02:43 S 20 12 47.03 -00 42 41.4 L C51
2010-04-25 12:38:04 S 20 12 51.60 -00 41 58.7 L C51
2010-04-25 14:13:14 S 20 12 56.15 -00 41 16.2 L C51
2010-04-25 14:13:25 S 20 12 56.15 -00 41 16.0 L C51
2010-04-25 15:48:35 S 20 13 00.72 -00 40 33.5 L C51
2010-04-25 17:23:45 S 20 13 05.22 -00 39 50.5 L C51
2010-04-25 17:23:56 S 20 13 05.25 -00 39 50.4 L C51
2010-04-25 20:34:16 S 20 13 14.32 -00 38 25.4 L C51
2010-04-25 20:34:27 S 20 13 14.34 -00 38 24.7 L C51
2010-04-25 23:44:47 S 20 13 23.38 -00 36 59.7 L C51
2010-04-25 23:44:58 S 20 13 23.41 -00 36 59.6 L C51
2010-04-26 02:55:18 S 20 13 32.44 -00 35 34.2 L C51
2010-04-26 06:05:49 S 20 13 41.47 -00 34 08.4 L C51
2010-05-06 01:04:21 S 20 23 52.226 +01 15 07.88 L C51
2010-05-25 23:19:26 C 20 37 09.41 +05 18 38.2 u 160
2010-05-25 23:20:59 C 20 37 09.42 +05 18 39.5 u 160
2010-06-10 23:42:01 C 20 36 20.60 +08 56 39.9 u 160
2010-06-10 23:45:58 C 20 36 20.48 +08 56 42.6 u 160
2010-06-10 23:49:55 C 20 36 20.36 +08 56 44.8 u 160
2010-06-11 00:12:47 C 20 36 19.81 +08 56 57.7 v B33
2010-06-11 00:18:54 C 20 36 19.64 +08 57 01.6 v B33
2010-06-11 23:58:51 C 20 35 44.91 +09 11 10.2 u 160
2010-06-12 00:01:54 C 20 35 44.81 +09 11 12.1 u 160
2010-06-12 00:04:56 C 20 35 44.71 +09 11 13.7 u 160
2010-06-20 01:05:43 C 20 27 37.13 +11 09 20.3 r J75
2010-06-20 01:25:54 C 20 27 35.84 +11 09 32.9 r J75
2010-06-20 01:46:09 C 20 27 34.49 +11 09 45.7 r J75
2010-06-20 08:30:13 C 20 27 09.45 +11 13 59.8 u H47
2010-06-28 08:58:37 C 20 10 15.42 +13 16 07.8 u H47
2010-06-28 09:05:15 C 20 10 14.58 +13 16 12.1 u H47
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)