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
2015-07-16 08:14:56 C 21 24 57.97 +31 44 01.8 u H21
2015-07-16 08:16:54 C 21 24 57.85 +31 44 14.1 u H21
2015-07-16 08:18:51 C 21 24 57.71 +31 44 26.6 u H21
2015-07-16 08:20:49 C 21 24 57.59 +31 44 39.0 u H21
2015-07-16 08:22:46 C 21 24 57.48 +31 44 51.2 u H21
2015-07-16 08:24:44 C 21 24 57.34 +31 45 03.8 u H21
2015-07-16 21:42:08 C 21 24 23.13 +33 13 32.7 t 073
2015-07-16 21:48:19 C 21 24 22.16 +33 14 10.1 16.3 q 585
2015-07-16 21:49:43 C 21 24 22.07 +33 14 19.8 q 585
2015-07-16 21:50:10 C 21 24 22.00 +33 14 23.4 q 585
2015-07-16 21:50:36 C 21 24 22.03 +33 14 26.3 q 585
2015-07-16 21:51:02 C 21 24 22.00 +33 14 30.2 q 585
2015-07-16 21:51:27 C 21 24 21.91 +33 14 32.1 q 585
2015-07-16 21:52:58 C 21 24 21.86 +33 14 42.7 q 585
2015-07-16 22:10:52 C 21 24 20.60 +33 16 52.4 16.6 q 585
2015-07-16 22:12:21 C 21 24 21.05 +33 17 07.3 t 073
2015-07-16 22:24:44 C 21 24 19.70 +33 18 28.6 q 585
2015-07-16 22:28:03 C 21 24 19.48 +33 18 51.0 q 585
2015-07-16 22:29:33 C 21 24 19.42 +33 19 04.3 q 585
2015-07-16 22:29:59 C 21 24 19.36 +33 19 05.7 q 585
2015-07-16 22:31:58 C 21 24 19.19 +33 19 20.3 q 585
2015-07-16 22:32:21 C 21 24 19.20 +33 19 22.2 q 585
2015-07-16 22:32:47 C 21 24 19.13 +33 19 26.2 q 585
2015-07-16 22:33:13 C 21 24 19.14 +33 19 28.7 q 585
2015-07-16 22:33:40 C 21 24 19.06 +33 19 32.5 q 585
2015-07-16 22:35:43 C 21 24 18.95 +33 19 45.9 q 585
2015-07-16 22:36:22 C 21 24 18.89 +33 19 51.5 q 585
2015-07-16 22:36:46 C 21 24 18.87 +33 19 54.5 q 585
2015-07-16 22:37:12 C 21 24 18.84 +33 19 57.3 q 585
2015-07-16 22:37:38 C 21 24 18.86 +33 19 59.9 q 585
2015-07-16 22:38:05 C 21 24 18.77 +33 20 02.7 q 585
2015-07-16 22:38:31 C 21 24 18.73 +33 20 06.6 q 585
2015-07-16 22:39:12 C 21 24 18.68 +33 20 11.6 q 585
2015-07-16 22:39:35 C 21 24 18.66 +33 20 13.4 q 585
2015-07-16 22:40:01 C 21 24 18.47 +33 20 18.4 q 585
2015-07-16 22:44:03 C 21 24 18.37 +33 20 45.6 q 585
2015-07-16 22:44:52 C 21 24 18.26 +33 20 52.0 q 585
2015-07-16 22:45:19 C 21 24 18.27 +33 20 54.2 q 585
2015-07-16 22:45:45 C 21 24 18.23 +33 20 58.9 q 585
2015-07-16 22:46:51 C 21 24 18.17 +33 21 06.4 q 585
2015-07-16 22:48:33 C 21 24 18.05 +33 21 17.6 q 585
2015-07-16 22:49:38 C 21 24 17.97 +33 21 25.4 15.8 q 585
2015-07-16 22:51:16 C 21 24 17.84 +33 21 36.9 q 585
2015-07-16 22:51:40 C 21 24 17.86 +33 21 40.3 q 585
2015-07-16 22:52:06 C 21 24 17.81 +33 21 42.4 q 585
2015-07-16 22:52:58 C 21 24 17.72 +33 21 50.0 q 585
2015-07-16 22:53:24 C 21 24 17.68 +33 21 52.7 q 585
2015-07-16 22:54:05 C 21 24 17.65 +33 21 57.3 q 585
2015-07-16 22:54:28 C 21 24 17.68 +33 22 00.6 q 585
2015-07-16 22:54:54 C 21 24 17.59 +33 22 02.9 q 585
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)