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
2009-06-02 19:50:43 C 16 51 24.00 +23 49 18.7 17.8 r C20
2009-06-02 22:08:08 C 16 51 00.53 +23 48 17.9 r J51
2009-06-02 22:13:07 C 16 50 59.66 +23 48 15.9 r J51
2009-06-02 22:18:03 C 16 50 58.78 +23 48 13.8 r J51
2009-06-02 22:54:27 C 16 50 51.81 +23 47 53.8 w 160
2009-06-02 22:56:23 C 16 50 51.46 +23 47 52.8 w 160
2009-06-02 22:58:19 C 16 50 51.11 +23 47 52.0 w 160
2009-06-03 06:42:19 C 16 49 30.02 +23 44 11.8 r 932
2009-06-03 06:45:58 C 16 49 29.39 +23 44 10.1 r 932
2009-06-03 06:51:46 C 16 49 28.34 +23 44 07.3 r 932
2009-06-03 20:54:31 C 16 47 03.29 +23 37 07.8 17.5 r C20
2009-06-04 21:22:48 C 16 42 52.57 +23 23 58.9 r B09
2009-06-05 20:11:11 C 16 39 01.35 +23 10 39.7 17.4 r C20
2009-06-06 06:20:45 C 16 37 18.99 +23 04 23.8 r 932
2009-06-06 23:40:14 C 16 34 27.77 +22 53 21.8 r J51
2009-06-06 23:46:38 C 16 34 26.71 +22 53 17.4 r J51
2009-06-06 23:51:51 C 16 34 25.84 +22 53 13.8 r J51
2009-06-07 23:56:14 C 16 30 30.20 +22 36 48.8 c J08
2009-06-09 00:00:19 C 16 26 38.88 +22 19 23.2 18.6 r C20
2009-06-09 19:22:34 C 16 23 37.51 +22 04 44.2 17.4 r C20
2009-06-09 19:35:04 C 16 23 35.99 +22 04 35.3 w B40
2009-06-09 19:39:54 C 16 23 35.23 +22 04 31.5 w B40
2009-06-09 19:44:43 C 16 23 34.46 +22 04 27.8 w B40
2009-06-10 21:58:01 C 16 19 32.49 +21 43 37.3 v 434
2009-06-10 22:01:18 C 16 19 32.02 +21 43 34.5 v 434
2009-06-10 22:03:44 C 16 19 31.61 +21 43 32.7 v 434
2009-06-10 22:07:43 C 16 19 31.00 +21 43 29.4 v 434
2009-06-10 22:50:26 C 16 19 24.59 +21 42 56.4 w J28
2009-06-10 22:57:36 C 16 19 23.48 +21 42 50.5 w J28
2009-06-11 19:36:39 C 16 16 17.89 +21 25 39.7 18.2 r C20
2009-06-11 21:47:14 C 16 15 58.55 +21 23 49.4 c A53
2009-06-11 22:09:38 C 16 15 55.16 +21 23 30.3 c A53
2009-06-11 22:23:09 C 16 15 53.13 +21 23 19.0 c A53
2009-06-12 22:00:57 C 16 12 26.13 +21 02 52.0 c B23
2009-06-12 22:03:18 C 16 12 25.87 +21 02 49.5 c B23
2009-06-12 22:05:34 C 16 12 25.47 +21 02 45.8 c B23
2009-06-15 07:10:26 C 16 04 28.23 +20 10 34.5 r 703
2009-06-15 07:19:15 C 16 04 27.01 +20 10 25.7 r 703
2009-06-15 07:28:03 C 16 04 25.75 +20 10 17.5 r 703
2009-06-15 07:36:51 C 16 04 24.60 +20 10 09.6 r 703
2009-06-15 21:36:04 C 16 02 33.28 +19 56 44.3 w 160
2009-06-15 21:38:30 C 16 02 32.94 +19 56 42.1 w 160
2009-06-15 21:40:51 C 16 02 32.63 +19 56 39.6 w 160
2009-06-15 21:42:54 C 16 02 32.35 +19 56 38.0 w 160
2009-06-17 21:47:57 C 15 56 23.60 +19 09 10.9 c B23
2009-06-17 21:51:19 C 15 56 23.18 +19 09 07.1 c B23
2009-06-17 21:54:38 C 15 56 22.71 +19 09 04.4 c B23
2009-06-17 22:10:06 C 15 56 20.72 +19 08 47.2 r A16
2009-06-17 22:42:26 C 15 56 16.58 +19 08 14.2 r A16
2009-06-17 23:14:17 C 15 56 12.58 +19 07 42.9 r A16
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)