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
2013-09-17 09:49:46 C 03 21 51.69 +15 17 10.5 q G96
2013-09-17 10:05:13 C 03 21 51.62 +15 17 06.3 q G96
2013-09-17 10:20:38 C 03 21 51.55 +15 17 02.1 q G96
2013-10-01 11:17:37 C 03 16 36.67 +13 27 11.6 o 691
2013-10-01 11:44:11 C 03 16 35.88 +13 27 01.9 o 691
2013-10-01 12:10:25 C 03 16 35.05 +13 26 51.8 o 691
2013-10-05 08:32:31 C 03 13 41.43 +12 51 21.0 o 691
2013-10-05 08:58:01 C 03 13 40.45 +12 51 11.3 o 691
2013-10-05 09:23:31 C 03 13 39.56 +12 51 01.4 o 691
2013-10-06 10:08:09 C 03 12 47.06 +12 41 10.8 q 703
2013-10-06 10:16:12 C 03 12 46.61 +12 41 07.6 q 703
2013-10-06 10:24:16 C 03 12 46.44 +12 41 05.4 q 703
2013-10-06 10:32:25 C 03 12 46.08 +12 41 03.3 q 703
2013-10-08 18:21:48 C 03 10 39.69 +12 18 27.6 q D29
2013-10-08 18:50:25 C 03 10 38.49 +12 18 15.5 q D29
2013-10-08 19:19:04 C 03 10 37.27 +12 18 03.7 q D29
2013-10-12 22:30:39 C 03 06 27.36 +11 36 50.4 19.3 q D03
2013-10-12 23:01:39 C 03 06 25.90 +11 36 37.1 19.9 q D03
2013-11-01 06:59:43 C 02 42 56.95 +08 25 32.5 q 703
2013-11-01 07:11:27 C 02 42 56.55 +08 25 28.2 q 703
2013-11-01 07:22:05 C 02 42 55.88 +08 25 23.4 q G96
2013-11-01 07:23:11 C 02 42 55.85 +08 25 23.3 q 703
2013-11-01 07:32:37 C 02 42 55.31 +08 25 19.5 q G96
2013-11-01 07:34:53 C 02 42 55.21 +08 25 19.4 q 703
2013-11-01 07:43:03 C 02 42 54.75 +08 25 15.5 q G96
2013-11-01 07:53:30 C 02 42 54.17 +08 25 11.5 q G96
2013-11-04 15:52:31 C 02 38 48.35 +07 56 12.9 q D29
2013-11-04 16:15:26 C 02 38 47.15 +07 56 04.9 q D29
2013-11-04 16:38:20 C 02 38 45.95 +07 55 57.5 q D29
2013-11-06 20:15:00 C 02 36 12.62 +07 38 22.7 t G36
2013-11-06 23:25:06 C 02 36 03.02 +07 37 20.3 t G36
2013-11-07 02:16:43 C 02 35 54.36 +07 36 23.8 t G36
2013-11-09 05:53:54 C 02 33 26.49 +07 19 56.3 q 703
2013-11-09 06:00:26 C 02 33 26.01 +07 19 53.4 q 703
2013-11-09 06:06:59 C 02 33 25.85 +07 19 52.0 q 703
2013-11-09 06:13:30 C 02 33 25.48 +07 19 49.7 q 703
2016-02-19 15:30:45 C 15 46 19.679 -17 31 40.96 L F51
2016-02-19 15:35:25 C 15 46 20.117 -17 31 41.37 L F51
2016-02-19 15:40:21 C 15 46 20.595 -17 31 41.98 L F51
2016-02-19 15:45:00 C 15 46 21.013 -17 31 42.48 L F51
2016-03-18 13:56:14 C 16 51 59.151 -17 20 37.97 L F51
2016-03-18 14:09:17 C 16 52 00.444 -17 20 36.02 L F51
2016-03-18 14:22:16 C 16 52 01.728 -17 20 34.06 L F51
2016-03-18 14:35:18 C 16 52 03.020 -17 20 32.10 L F51
2016-05-21 01:20:06 C 19 33 46.15 -02 56 51.9 q 160
2016-05-21 01:23:06 C 19 33 46.44 -02 56 48.8 q 160
2016-05-21 01:26:05 C 19 33 46.77 -02 56 45.8 q 160
2016-05-22 02:10:39 C 19 36 25.07 -02 32 53.7 q 160
2016-05-22 02:13:37 C 19 36 25.41 -02 32 50.5 q 160
2016-05-23 08:33:09 C 19 39 39.39 -02 03 20.1 u H21