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
1999-07-08 21:16:19 C 14 38 52.86 +11 45 22.0 z 587
1999-07-08 21:23:30 C 14 38 52.78 +11 45 13.0 z 587
1999-07-09 05:23:26 C 14 38 52.52 +11 35 58.0 658
1999-07-09 05:26:36 C 14 38 52.48 +11 35 53.7 658
1999-07-09 05:29:49 C 14 38 52.51 +11 35 50.4 658
1999-07-20 05:29:45 C 14 41 20.65 +06 48 35.7 658
1999-07-20 05:35:09 C 14 41 20.71 +06 48 29.9 658
1999-07-20 05:39:40 C 14 41 20.80 +06 48 25.4 658
1999-08-03 09:30:03 C 14 50 33.65 +01 23 13.2 413
1999-08-03 09:33:00 C 14 50 33.74 +01 23 10.4 413
1999-08-30 11:08:26 C 15 21 04.65 -07 20 35.1 413
1999-08-30 11:11:21 C 15 21 04.74 -07 20 37.6 413
1999-08-30 11:14:40 C 15 21 04.90 -07 20 40.1 413
1999-08-31 10:54:47 C 15 22 27.01 -07 37 55.0 413
1999-08-31 10:58:22 C 15 22 27.21 -07 37 57.6 413
1999-10-15 09:42:09 C 16 41 36.57 -19 13 29.4 413
1999-10-15 09:45:06 C 16 41 36.85 -19 13 31.4 413
1999-10-16 09:20:39 C 16 43 43.29 -19 27 10.9 413
1999-10-17 09:20:38 C 16 45 52.98 -19 41 01.2 413
1999-10-17 09:23:29 C 16 45 53.20 -19 41 02.5 413
1999-10-17 09:27:32 C 16 45 53.59 -19 41 05.1 413
2000-05-25 03:19:22 C 19 47 52.29 +08 25 32.6 c 950
2000-05-25 03:35:21 C 19 47 51.63 +08 25 41.8 c 950
2000-05-27 03:47:45 C 19 45 44.21 +08 51 43.1 c 950
2000-05-27 03:55:02 C 19 45 43.82 +08 51 46.5 c 950
2000-05-29 02:17:45 C 19 43 22.06 +09 16 23.1 c 950
2000-05-29 02:27:44 C 19 43 21.43 +09 16 28.6 c 950
2000-06-02 02:11:11 C 19 37 21.58 +10 05 33.5 610
2000-06-02 02:16:10 C 19 37 21.16 +10 05 36.0 610
2000-06-02 02:21:10 C 19 37 20.74 +10 05 38.5 610
2000-06-07 17:13:30 C 19 26 05.97 +11 08 31.7 360
2000-06-07 17:17:30 C 19 26 05.58 +11 08 33.4 360
2000-06-07 17:21:29 C 19 26 05.17 +11 08 35.3 360
2000-06-11 07:13:52 C 19 17 02.39 +11 42 38.1 17.3 c 704
2000-06-11 07:32:20 C 19 17 00.17 +11 42 45.2 17.2 c 704
2000-06-11 07:51:45 C 19 16 57.91 +11 42 52.2 17.4 c 704
2000-06-11 08:10:02 C 19 16 55.72 +11 42 58.5 17.4 c 704
2000-06-11 08:28:19 C 19 16 53.56 +11 43 04.9 17.4 c 704
2000-06-12 08:16:20 C 19 14 05.90 +11 51 24.9 17.3 c 704
2000-06-12 08:34:23 C 19 14 03.69 +11 51 30.8 17.8 c 704
2000-06-12 08:52:23 C 19 14 01.46 +11 51 36.4 18.1 c 704
2000-06-12 09:10:29 C 19 13 59.26 +11 51 42.8 18.3 c 704
2000-06-15 04:48:45 C 19 05 21.98 +12 12 07.2 i 649
2000-06-15 04:59:01 C 19 05 20.57 +12 12 10.7 i 649
2000-06-15 05:19:34 C 19 05 17.75 +12 12 18.2 i 649
2000-06-15 05:26:26 C 19 05 16.88 +12 12 18.3 i 649
2000-06-19 22:10:00 C 18 48 35.33 +12 33 34.4 610
2000-06-19 22:15:00 C 18 48 34.49 +12 33 35.0 610
2000-06-19 22:20:01 C 18 48 33.65 +12 33 35.6 610
2000-06-19 22:25:01 C 18 48 32.82 +12 33 36.2 610
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)