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
1990-06-22 06:20:00 17 22 40.85 +14 08 08.1 675
1990-06-22 07:14:59 17 22 31.30 +14 07 41.1 675
1999-05-12 10:05:36 C 17 17 33.31 +40 01 19.7 c 699
1999-05-12 10:20:17 C 17 17 29.29 +40 01 15.4 c 699
1999-05-12 10:34:59 C 17 17 25.31 +40 01 11.3 c 699
1999-05-12 21:02:19 C 17 14 41.49 +39 57 57.9 z 620
1999-05-12 21:07:19 C 17 14 40.18 +39 57 56.5 z 620
1999-05-12 21:12:09 C 17 14 38.93 +39 57 55.2 z 620
1999-05-12 21:15:59 C 17 14 37.92 +39 57 54.1 z 620
1999-05-13 04:37:55 C 17 12 41.46 +39 55 37.7 c 758
1999-05-13 04:43:05 C 17 12 40.01 +39 55 36.0 c 758
1999-05-13 04:48:15 C 17 12 38.63 +39 55 34.4 c 758
1999-05-13 05:20:15 C 17 12 30.54 +39 55 19.1 17.8 a 704
1999-05-13 05:42:03 C 17 12 24.72 +39 55 12.6 17.8 a 704
1999-05-13 06:03:48 C 17 12 18.89 +39 55 06.9 18.3 a 704
1999-05-13 06:23:29 C 17 12 13.33 +39 54 58.7 734
1999-05-13 06:25:34 C 17 12 13.10 +39 54 59.2 18.1 a 704
1999-05-13 06:26:53 C 17 12 12.41 +39 54 57.6 734
1999-05-13 06:29:40 C 17 12 11.62 +39 54 57.2 734
1999-05-13 06:32:24 C 17 12 10.90 +39 54 56.4 734
1999-05-13 06:47:19 C 17 12 07.16 +39 54 52.3 18.1 a 704
1999-05-13 07:29:24 C 17 11 55.91 +39 54 35.7 c 713
1999-05-13 07:46:25 C 17 11 51.31 +39 54 30.1 c 713
1999-05-13 08:10:31 C 17 11 44.82 +39 54 22.0 c 713
1999-05-13 09:01:28 C 17 11 31.16 +39 54 07.1 17.3 a 704
1999-05-13 09:13:35 C 17 11 27.84 +39 54 02.4 17.2 a 704
1999-05-13 09:25:43 C 17 11 24.58 +39 53 58.0 17.8 a 704
1999-05-13 09:37:46 C 17 11 21.50 +39 53 53.5 18.6 a 704
1999-05-13 09:50:00 C 17 11 17.97 +39 53 48.4 18.0 a 704
1999-05-13 20:49:13 C 17 08 27.27 +39 49 29.4 d 046
1999-05-13 20:51:02 C 17 08 26.80 +39 49 28.6 d 046
1999-05-13 20:53:12 C 17 08 26.24 +39 49 28.2 d 046
1999-05-13 20:54:41 C 17 08 25.82 +39 49 27.5 d 046
1999-05-14 08:20:47 C 17 05 26.40 +39 44 50.2 z 719
1999-05-14 08:27:14 C 17 05 24.79 +39 44 47.5 z 719
1999-05-14 08:51:12 C 17 05 18.26 +39 44 41.3 z 719
1999-05-14 09:00:18 C 17 05 15.87 +39 44 34.3 z 719
1999-05-14 22:09:21 C 17 01 53.24 +39 38 20.6 952
1999-05-14 22:11:53 C 17 01 52.66 +39 38 19.6 952
1999-05-14 22:24:35 C 17 01 49.29 +39 38 13.3 952
1999-05-14 22:27:40 C 17 01 48.45 +39 38 11.6 952
1999-05-15 09:08:29 C 16 59 02.75 +39 32 52.7 17.8 a 704
1999-05-15 09:30:10 C 16 58 57.14 +39 32 41.1 a 704
1999-05-15 09:51:56 C 16 58 51.49 +39 32 30.5 19.0 a 704
1999-05-15 10:13:39 C 16 58 45.63 +39 32 17.4 a 704
1999-05-15 10:35:26 C 16 58 39.89 +39 32 05.6 18.2 a 704
1999-05-16 20:28:03 C 16 50 07.65 +39 12 02.8 540
1999-05-16 20:32:19 C 16 50 06.61 +39 12 00.4 540
1999-05-16 20:36:30 C 16 50 05.46 +39 11 58.0 540
1999-05-16 20:40:43 C 16 50 04.39 +39 11 55.1 540
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)