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
2016-09-25 20:42:50 C 22 23 10.85 -04 24 39.7 q 160
2016-09-25 20:45:23 C 22 23 10.90 -04 24 40.8 q 160
2016-09-25 20:47:55 C 22 23 10.98 -04 24 42.0 q 160
2016-09-26 22:22:42 C 22 24 00.47 -04 37 44.2 V 160
2016-09-26 22:25:30 C 22 24 00.60 -04 37 45.5 V 160
2016-09-26 22:28:16 C 22 24 00.76 -04 37 47.4 V 160
2016-09-27 09:05:13 C 22 24 21.76 -04 42 56.2 L T05
2016-09-27 09:25:24 C 22 24 22.40 -04 43 05.2 L T05
2016-09-27 09:42:46 C 22 24 22.93 -04 43 17.7 L T05
2016-09-27 09:55:21 C 22 24 23.31 -04 43 20.2 L T05
2016-09-27 21:40:57 C 22 24 47.12 -04 49 07.6 V 160
2016-09-27 21:43:45 C 22 24 47.21 -04 49 08.8 V 160
2016-09-27 21:46:33 C 22 24 47.30 -04 49 10.6 V 160
2016-09-28 21:34:20 C 22 25 35.90 -05 00 17.6 q 160
2016-09-28 21:36:57 C 22 25 35.98 -05 00 18.5 q 160
2016-09-28 21:39:31 C 22 25 36.07 -05 00 21.2 q 160
2016-09-29 19:48:54 C 22 26 22.63 -05 10 18.8 V 160
2016-09-29 19:51:37 C 22 26 22.75 -05 10 20.4 V 160
2016-09-29 19:54:20 C 22 26 22.86 -05 10 21.1 V 160
2016-10-03 02:20:34 C 22 29 14.09 -05 42 16.8 q H15
2016-10-03 02:34:23 C 22 29 14.58 -05 42 21.2 q H15
2016-10-03 02:49:11 C 22 29 15.09 -05 42 27.2 q H15
2016-10-03 19:46:57 C 22 29 53.42 -05 48 43.4 V 160
2016-10-03 19:48:04 C 22 29 53.41 -05 48 42.5 q 160
2016-10-03 19:49:28 C 22 29 53.55 -05 48 44.3 q 160
2016-10-03 19:49:41 C 22 29 53.52 -05 48 44.7 V 160
2016-10-03 19:52:27 C 22 29 53.70 -05 48 45.8 V 160
2016-10-03 19:54:21 C 22 29 53.70 -05 48 45.8 q 160
2016-10-04 04:38:55 C 22 30 13.67 -05 51 51.2 q G96
2016-10-04 04:47:28 C 22 30 13.97 -05 51 54.4 q G96
2016-10-04 04:55:58 C 22 30 14.28 -05 51 57.5 q G96
2016-10-04 05:04:29 C 22 30 14.57 -05 52 00.5 q G96
2016-10-04 22:12:59 C 22 30 54.11 -05 57 59.2 q 160
2016-10-04 22:15:58 C 22 30 54.22 -05 57 59.9 q 160
2016-10-04 22:18:55 C 22 30 54.35 -05 58 01.0 q 160
2016-10-05 21:07:42 C 22 31 48.36 -06 05 33.9 q 160
2016-10-05 21:10:07 C 22 31 48.45 -06 05 34.4 q 160
2016-10-05 21:12:30 C 22 31 48.52 -06 05 35.1 q 160
2016-10-06 05:36:29 C 22 32 08.52 -06 08 13.5 q G96
2016-10-06 05:44:20 C 22 32 08.80 -06 08 16.0 q G96
2016-10-06 05:50:32 C 22 32 09.02 -06 08 18.0 q G96
2016-10-06 05:58:11 C 22 32 09.30 -06 08 20.1 q G96
2016-10-19 04:54:26 C 22 45 55.22 -07 10 51.8 q 703
2016-10-19 05:03:06 C 22 45 55.63 -07 10 51.0 q 703
2016-10-19 05:11:46 C 22 45 56.11 -07 10 51.9 q 703
2016-10-19 05:20:26 C 22 45 56.55 -07 10 52.6 q 703
2016-10-31 03:30:54 C 23 00 35.94 -07 15 10.8 q G96
2016-10-31 03:47:23 C 23 00 36.75 -07 15 10.1 q G96
2016-10-31 03:55:41 C 23 00 37.18 -07 15 09.6 q G96
2016-11-02 03:26:44 C 23 03 12.54 -07 11 49.2 q 703