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
1999-06-07 04:57:51 C 15 15 30.67 +28 56 24.7 18.1 a 704
1999-06-07 05:11:55 C 15 15 28.96 +28 56 03.9 18.5 a 704
1999-06-08 03:50:00 C 15 12 55.75 +28 22 32.3 17.8 a 704
1999-06-08 04:04:53 C 15 12 54.07 +28 22 10.8 18.1 a 704
1999-06-08 04:19:17 C 15 12 52.40 +28 21 49.3 18.0 a 704
1999-06-08 04:33:40 C 15 12 50.77 +28 21 28.4 18.0 a 704
1999-06-08 04:48:04 C 15 12 49.13 +28 21 07.1 17.6 a 704
1999-06-08 14:11:15 C 15 11 47.27 +28 07 11.8 360
1999-06-08 14:14:45 C 15 11 46.89 +28 07 06.8 360
1999-06-08 14:18:29 C 15 11 46.48 +28 07 01.3 360
1999-06-08 20:50:00 C 15 11 05.01 +27 57 16.3 z 610
1999-06-08 20:57:00 C 15 11 04.24 +27 57 06.3 z 610
1999-06-08 21:04:00 C 15 11 03.47 +27 56 56.2 z 610
1999-06-08 21:11:00 C 15 11 02.70 +27 56 46.1 z 610
1999-06-08 21:17:59 C 15 11 01.93 +27 56 36.0 z 610
1999-06-09 21:51:46 C 15 08 29.33 +27 20 10.0 z 587
1999-06-11 04:15:06 C 15 05 32.19 +26 35 10.4 19.0 a 704
1999-06-11 04:33:36 C 15 05 30.38 +26 34 42.9 19.1 a 704
1999-06-11 04:52:13 C 15 05 28.56 +26 34 15.7 18.8 a 704
1999-06-11 05:10:48 C 15 05 26.74 +26 33 47.7 18.3 a 704
1999-06-11 05:29:18 C 15 05 24.92 +26 33 20.3 a 704
1999-06-11 23:02:32 C 15 03 47.62 +26 07 17.2 z 071
1999-06-11 23:05:16 C 15 03 47.38 +26 07 13.3 z 071
1999-06-11 23:08:01 C 15 03 47.17 +26 07 10.1 z 071
1999-06-11 23:10:46 C 15 03 46.91 +26 06 58.3 z 071
1999-06-12 05:24:54 C 15 03 14.04 +25 57 56.5 17.8 a 704
1999-06-12 05:42:35 C 15 03 12.44 +25 57 30.0 18.1 a 704
1999-06-12 06:00:18 C 15 03 10.75 +25 57 03.7 18.2 a 704
1999-06-12 06:17:58 C 15 03 09.17 +25 56 37.8 19.0 a 704
1999-06-12 06:35:40 C 15 03 07.48 +25 56 11.2 19.1 a 704
1999-06-12 21:54:10 C 15 01 47.99 +25 33 32.4 557
1999-06-12 22:29:35 C 15 01 44.83 +25 32 39.8 557
1999-06-12 23:26:14 C 15 01 39.90 +25 31 16.2 557
1999-06-13 00:42:14 C 15 01 33.29 +25 29 22.9 557
1999-06-14 23:46:18 C 14 57 47.49 +24 20 20.5 z 071
1999-06-14 23:49:32 C 14 57 47.33 +24 20 17.4 z 071
1999-06-16 20:10:41 C 14 54 39.07 +23 15 54.7 z 071
1999-06-16 20:18:41 C 14 54 38.34 +23 15 43.1 z 071
1999-06-16 20:23:28 C 14 54 38.08 +23 15 36.1 z 071
1999-06-16 20:28:51 C 14 54 37.69 +23 15 28.4 z 071
1999-06-16 20:32:15 C 14 54 37.44 +23 15 23.0 z 071
1999-07-01 20:42:37 C 14 40 21.26 +15 08 16.9 d 046
1999-07-01 20:46:26 C 14 40 21.23 +15 08 12.7 d 046
1999-07-01 20:47:59 C 14 40 21.21 +15 08 10.6 d 046
1999-07-01 20:49:31 C 14 40 21.17 +15 08 08.4 d 046
1999-07-01 23:41:14 C 14 40 17.85 +15 04 33.8 595
1999-07-02 00:24:42 C 14 40 17.16 +15 03 39.3 595
1999-07-05 21:05:26 C 14 39 11.40 +13 10 18.9 d 046
1999-07-05 21:07:31 C 14 39 11.34 +13 10 19.3 d 046
1999-07-05 21:11:53 C 14 39 11.25 +13 10 11.9 d 046
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)