257838 (2000 JQ66)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4197482659 ± 1.78e-08
Semi-major axis (a)2.1652920613 AU ± 1.19e-09
Inclination (i)7.06145608° ± 1.47e-06
Long. of Asc. Node (Ω)188.89277714° ± 1.43e-05
Arg. of Perihelion (ω)103.86188071° ± 1.61e-05
Mean Anomaly (M)339.11536696° ± 3.04e-06
Mean Motion (n)0.3093410467°/day ± 2.55e-10
Perihelion dist (q)1.25641447 AU ± 3.86e-08
Aphelion dist (Q)3.07416965 AU ± 3.86e-08
Orbital Period3.18621241 yr ± 2.62e-09
Physical Parameters
H (abs. magnitude)18.00
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.313″
Uncertainty0
Orbit TypeAmor
MOID0.273705 AU
Observations Used807
Oppositions28
Arc Total1984-2025
First Observation Used1984-03-29
Last Observation Used2025-03-28
Observations (859)
Date Type RA Dec Mag Band Observatory
2016-07-02 00:04:56 C 21 11 17.37 +11 54 41.2 q 160
2016-07-03 07:48:36 C 21 13 46.71 +12 11 53.8 q 719
2016-07-03 08:46:14 C 21 13 50.89 +12 12 24.0 q 719
2016-07-03 10:15:30 C 21 13 57.17 +12 13 10.5 R G45
2016-07-03 10:22:23 C 21 13 57.65 +12 13 13.8 R G45
2016-07-03 10:29:49 C 21 13 58.18 +12 13 17.8 R G45
2016-07-03 10:37:23 C 21 13 58.72 +12 13 21.7 R G45
2016-07-03 10:44:36 C 21 13 59.23 +12 13 25.5 R G45
2016-07-03 10:52:05 C 21 13 59.77 +12 13 29.3 R G45
2016-07-03 10:52:20 C 21 13 59.78 +12 13 29.4 R G45
2016-07-04 00:22:11 C 21 15 03.11 +12 20 18.0 q 160
2016-07-04 00:24:46 C 21 15 03.28 +12 20 19.1 q 160
2016-07-04 00:27:21 C 21 15 03.46 +12 20 20.3 q 160
2016-07-05 07:37:30 C 21 17 25.42 +12 35 26.1 q 719
2016-07-05 07:43:39 C 21 17 25.83 +12 35 29.1 q 719
2016-07-05 09:41:57 C 21 17 33.92 +12 36 24.2 R G45
2016-07-05 09:49:28 C 21 17 34.44 +12 36 27.8 R G45
2016-07-05 09:56:42 C 21 17 34.93 +12 36 31.2 R G45
2016-07-05 10:11:01 C 21 17 35.93 +12 36 37.4 R G45
2016-07-06 01:31:13 C 21 18 44.62 +12 43 28.4 16.2 c 122
2016-07-06 01:39:33 C 21 18 45.36 +12 43 31.7 16.9 c 122
2016-07-06 01:49:21 C 21 18 46.01 +12 43 36.0 17.1 c 122
2016-07-06 06:43:02 C 21 19 08.53 +12 45 47.1 R G45
2016-07-06 06:50:01 C 21 19 09.02 +12 45 50.1 R G45
2016-07-06 06:56:54 C 21 19 09.49 +12 45 53.3 R G45
2016-07-06 07:03:53 C 21 19 09.96 +12 45 56.6 R G45
2016-07-06 08:10:16 C 21 19 14.57 +12 46 26.4 q 703
2016-07-06 08:18:14 C 21 19 15.18 +12 46 29.1 q 703
2016-07-06 08:26:13 C 21 19 15.65 +12 46 33.2 q 703
2016-07-06 08:34:11 C 21 19 16.19 +12 46 36.6 q 703
2016-07-08 00:09:36 C 21 22 08.03 +13 02 36.5 q 160
2016-07-08 00:11:31 C 21 22 08.15 +13 02 37.4 q 160
2016-07-08 00:13:20 C 21 22 08.24 +13 02 38.0 q 160
2016-07-09 12:32:03 C 21 24 40.70 +13 15 45.1 L T05
2016-07-09 12:56:25 C 21 24 42.17 +13 15 53.4 L T05
2016-07-09 13:20:54 C 21 24 43.68 +13 16 01.5 L T05
2016-07-09 13:44:29 C 21 24 45.14 +13 16 09.2 L T05
2016-07-09 14:08:01 C 21 24 46.60 +13 16 16.6 L T05
2016-07-10 00:12:05 C 21 25 29.27 +13 19 22.2 q 160
2016-07-10 00:14:37 C 21 25 29.40 +13 19 22.3 q 160
2016-07-10 00:17:09 C 21 25 29.50 +13 19 22.8 q 160
2016-07-10 06:07:06 C 21 25 54.13 +13 21 15.4 R G45
2016-07-10 06:14:05 C 21 25 54.58 +13 21 17.9 R G45
2016-07-10 06:20:18 C 21 25 54.88 +13 21 19.8 R G45
2016-07-10 06:27:17 C 21 25 55.38 +13 21 22.2 R G45
2016-07-10 06:34:22 C 21 25 55.83 +13 21 24.4 R G45
2016-07-10 06:41:15 C 21 25 56.25 +13 21 27.0 R G45
2016-07-11 05:34:37 C 21 27 29.02 +13 28 06.7 q 719
2016-07-11 06:45:34 C 21 27 33.36 +13 28 26.4 q 719
2016-07-11 08:43:29 C 21 27 40.56 +13 29 01.0 q 703