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
1999-05-23 23:01:06 C 16 10 43.15 +36 39 22.8 z 610
1999-05-23 23:07:05 C 16 10 41.87 +36 39 15.5 z 610
1999-05-23 23:54:42 C 16 10 31.59 +36 38 21.9 557
1999-05-24 01:15:25 C 16 10 14.34 +36 36 51.0 557
1999-05-24 21:01:41 C 16 06 11.11 +36 14 18.1 557
1999-05-24 22:42:06 C 16 05 50.33 +36 12 21.1 557
1999-05-24 22:56:11 C 16 05 47.40 +36 12 04.7 557
1999-05-24 23:55:26 C 16 05 34.98 +36 10 56.0 z 629
1999-05-24 23:57:55 C 16 05 34.44 +36 10 55.5 z 629
1999-05-25 00:00:00 C 16 05 34.03 +36 10 52.6 z 629
1999-05-25 00:03:31 C 16 05 33.26 +36 10 48.3 z 629
1999-05-25 00:05:12 C 16 05 32.98 +36 10 46.2 17.0 z 629
1999-05-26 07:39:10 C 15 59 18.66 +35 32 58.2 658
1999-05-26 07:42:27 C 15 59 17.99 +35 32 54.3 658
1999-05-26 07:47:00 C 15 59 17.10 +35 32 48.7 658
1999-05-26 20:11:32 C 15 56 55.06 +35 17 26.0 c 118
1999-05-26 20:13:24 C 15 56 54.68 +35 17 24.1 c 118
1999-05-26 20:16:58 C 15 56 54.02 +35 17 19.3 c 118
1999-05-27 05:42:40 C 15 55 07.07 +35 05 36.1 z 711
1999-05-27 05:51:08 C 15 55 05.44 +35 05 25.6 z 711
1999-05-27 23:00:05 C 15 51 55.08 +34 43 25.7 d 046
1999-05-27 23:02:00 C 15 51 54.78 +34 43 22.8 d 046
1999-05-27 23:03:44 C 15 51 54.45 +34 43 20.4 d 046
1999-05-30 00:07:01 C 15 43 18.86 +33 38 25.0 z 104
1999-05-30 00:09:42 C 15 43 18.40 +33 38 21.8 z 104
1999-05-30 00:12:22 C 15 43 17.91 +33 38 18.2 z 104
1999-05-31 13:53:36 C 15 37 10.21 +32 46 31.7 z 402
1999-05-31 13:55:55 C 15 37 09.80 +32 46 28.6 z 402
1999-05-31 13:58:14 C 15 37 09.46 +32 46 25.3 z 402
1999-06-01 23:00:56 C 15 32 05.98 +31 59 46.5 c 118
1999-06-01 23:13:31 C 15 32 04.10 +31 59 28.7 c 118
1999-06-03 23:28:11 C 15 25 13.49 +30 50 04.6 c 118
1999-06-03 23:30:39 C 15 25 13.18 +30 50 01.0 c 118
1999-06-04 08:49:57 C 15 23 57.77 +30 36 29.4 17.7 a 704
1999-06-04 09:01:28 C 15 23 56.16 +30 36 12.9 17.7 a 704
1999-06-04 09:12:47 C 15 23 54.62 +30 35 55.3 18.0 a 704
1999-06-04 09:24:04 C 15 23 53.13 +30 35 39.3 17.8 a 704
1999-06-04 09:35:22 C 15 23 51.55 +30 35 22.8 17.8 a 704
1999-06-04 20:06:00 C 15 22 30.15 +30 20 01.3 z 610
1999-06-04 20:14:01 C 15 22 29.08 +30 19 49.9 z 610
1999-06-04 20:22:00 C 15 22 28.01 +30 19 38.5 z 610
1999-06-04 20:30:01 C 15 22 26.94 +30 19 27.1 z 610
1999-06-04 20:38:00 C 15 22 25.87 +30 19 15.8 z 610
1999-06-04 22:58:47 C 15 22 07.23 +30 15 46.8 z 108
1999-06-04 23:01:29 C 15 22 06.69 +30 15 43.5 z 108
1999-06-04 23:07:40 C 15 22 05.66 +30 15 33.3 z 108
1999-06-04 23:12:29 C 15 22 05.34 +30 15 25.5 z 108
1999-06-07 04:14:53 C 15 15 35.84 +28 57 28.5 19.0 a 704
1999-06-07 04:29:46 C 15 15 34.03 +28 57 05.9 18.5 a 704
1999-06-07 04:43:49 C 15 15 32.38 +28 56 45.6 19.0 a 704
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)