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
2010-06-28 09:13:14 C 20 10 13.58 +13 16 16.8 u H47
2010-06-29 23:54:05 C 20 05 21.11 +13 40 50.1 r 585
2010-06-29 23:55:07 C 20 05 20.94 +13 40 50.5 r 585
2010-06-29 23:56:07 C 20 05 20.74 +13 40 51.8 r 585
2010-06-29 23:58:00 C 20 05 20.56 +13 40 52.6 r 585
2010-06-29 23:59:02 C 20 05 20.39 +13 40 52.7 r 585
2010-06-30 00:00:02 C 20 05 20.28 +13 40 53.4 r 585
2010-06-30 00:01:16 C 20 05 20.06 +13 40 54.8 r 585
2010-06-30 00:02:17 C 20 05 19.99 +13 40 55.5 r 585
2010-06-30 00:03:18 C 20 05 19.81 +13 40 56.0 r 585
2010-06-30 00:06:01 C 20 05 19.37 +13 40 57.6 r 585
2010-06-30 00:07:01 C 20 05 19.22 +13 40 57.7 r 585
2010-06-30 00:08:02 C 20 05 19.13 +13 40 59.2 r 585
2010-06-30 00:11:42 C 20 05 18.63 +13 41 00.8 r 585
2010-06-30 00:12:42 C 20 05 18.49 +13 41 01.9 r 585
2010-06-30 00:13:44 C 20 05 18.32 +13 41 02.8 r 585
2010-07-04 23:10:28 C 19 45 53.39 +14 54 56.8 c 127
2010-07-04 23:15:55 C 19 45 52.28 +14 54 59.9 c 127
2010-07-04 23:20:24 C 19 45 51.39 +14 55 02.9 c 127
2010-07-04 23:24:27 C 19 45 50.55 +14 55 05.1 c 127
2010-07-06 21:20:14 C 19 36 08.98 +15 21 44.6 w I99
2010-07-06 21:20:28 C 19 36 08.55 +15 21 42.6 u A13
2010-07-06 21:22:39 C 19 36 08.04 +15 21 43.9 u A13
2010-07-06 21:24:02 C 19 36 08.08 +15 21 46.9 w I99
2010-07-06 21:27:49 C 19 36 07.18 +15 21 49.2 w I99
2010-07-06 21:48:14 C 19 36 02.07 +15 21 58.7 u A13
2010-07-06 21:58:52 C 19 35 59.06 +15 22 07.0 o A92
2010-07-06 22:04:34 C 19 35 57.74 +15 22 09.9 o A92
2010-07-06 22:07:41 C 19 35 56.99 +15 22 12.1 o A92
2010-07-06 22:10:16 C 19 35 56.41 +15 22 13.5 o A92
2010-07-06 22:12:50 C 19 35 55.85 +15 22 15.1 o A92
2010-07-07 21:52:22 C 19 30 20.35 +15 35 09.4 u 160
2010-07-07 21:54:52 C 19 30 19.72 +15 35 11.0 u 160
2010-07-07 21:56:51 C 19 30 19.20 +15 35 12.1 u 160
2010-07-08 22:20:29 C 19 24 04.92 +15 47 47.4 u 160
2010-07-08 22:21:35 C 19 24 04.63 +15 47 47.9 u 160
2010-07-08 22:22:42 C 19 24 04.30 +15 47 48.6 u 160
2010-07-08 23:03:03 C 19 23 53.32 +15 48 05.1 c 127
2010-07-08 23:08:04 C 19 23 51.96 +15 48 07.6 c 127
2010-07-08 23:11:54 C 19 23 50.91 +15 48 09.6 c 127
2010-07-08 23:15:38 C 19 23 50.12 +15 48 10.9 w J69
2010-07-08 23:16:29 C 19 23 49.67 +15 48 11.9 c 127
2010-07-08 23:20:04 C 19 23 48.68 +15 48 13.5 c 127
2010-07-08 23:25:59 C 19 23 47.28 +15 48 15.8 w J69
2010-07-08 23:36:19 C 19 23 44.46 +15 48 21.0 w J69
2010-07-08 23:40:22 C 19 23 43.34 +15 48 23.0 w J69
2010-07-09 22:28:50 C 19 17 25.02 +15 59 19.5 u 160
2010-07-09 22:31:03 C 19 17 24.36 +15 59 20.6 u 160
2010-07-09 22:33:19 C 19 17 23.70 +15 59 21.5 u 160
2010-07-12 21:41:04 C 18 54 33.38 +16 25 54.0 u A06
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)