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
2016-06-07 01:20:29 C 20 16 22.66 +03 46 57.5 q 160
2016-06-08 13:08:12 C 20 19 58.29 +04 22 02.0 L T05
2016-06-08 13:36:13 C 20 20 00.90 +04 22 28.0 L T05
2016-06-08 13:52:30 C 20 20 02.46 +04 22 44.3 L T05
2016-06-08 14:04:37 C 20 20 03.60 +04 22 56.1 L T05
2016-06-17 23:55:39 C 20 41 59.96 +07 51 12.7 q 160
2016-06-17 23:58:02 C 20 42 00.19 +07 51 15.0 q 160
2016-06-18 00:00:24 C 20 42 00.40 +07 51 17.0 q 160
2016-06-18 06:48:25 C 20 42 38.63 +07 57 08.9 u H21
2016-06-18 06:53:54 C 20 42 39.11 +07 57 13.6 u H21
2016-06-18 06:59:47 C 20 42 39.63 +07 57 18.7 u H21
2016-06-18 07:05:40 C 20 42 40.15 +07 57 23.8 u H21
2016-06-18 07:12:26 C 20 42 40.74 +07 57 29.6 u H21
2016-06-19 12:26:42 C 20 45 23.80 +08 22 24.3 L T05
2016-06-19 12:46:28 C 20 45 25.55 +08 22 40.7 L T05
2016-06-19 13:04:41 C 20 45 27.14 +08 22 56.1 L T05
2016-06-19 13:33:16 C 20 45 29.55 +08 23 20.2 L T05
2016-06-20 07:28:06 C 20 47 09.20 +08 38 04.3 u H21
2016-06-20 07:34:05 C 20 47 09.72 +08 38 09.2 u H21
2016-06-20 07:39:58 C 20 47 10.23 +08 38 14.1 u H21
2016-06-20 07:45:51 C 20 47 10.74 +08 38 18.9 u H21
2016-06-20 07:51:44 C 20 47 11.24 +08 38 23.8 u H21
2016-06-20 07:57:36 C 20 47 11.75 +08 38 28.7 u H21
2016-06-20 08:03:29 C 20 47 12.26 +08 38 33.5 u H21
2016-06-20 08:09:46 C 20 47 12.81 +08 38 38.7 u H21
2016-06-21 07:38:19 C 20 49 22.21 +08 57 48.0 t 705
2016-06-21 07:39:47 C 20 49 22.31 +08 57 49.1 t 705
2016-06-21 07:41:15 C 20 49 22.42 +08 57 50.4 t 705
2016-06-22 01:02:04 C 20 50 56.39 +09 11 37.6 q 160
2016-06-22 01:04:33 C 20 50 56.61 +09 11 39.5 q 160
2016-06-22 01:07:03 C 20 50 56.81 +09 11 41.5 q 160
2016-06-25 08:53:04 C 20 58 01.15 +10 12 12.4 q H21
2016-06-25 08:55:07 C 20 58 01.30 +10 12 14.0 q H21
2016-06-25 08:57:12 C 20 58 01.49 +10 12 15.6 q H21
2016-06-25 08:59:15 C 20 58 01.67 +10 12 17.1 q H21
2016-06-25 09:01:21 C 20 58 01.83 +10 12 18.3 q H21
2016-06-27 00:11:39 C 21 01 25.08 +10 39 53.0 q 160
2016-06-27 00:14:06 C 21 01 25.27 +10 39 54.7 q 160
2016-06-27 00:16:33 C 21 01 25.48 +10 39 56.5 q 160
2016-06-28 05:40:01 C 21 03 55.47 +10 59 40.8 q 719
2016-06-28 06:25:31 C 21 03 59.02 +11 00 12.2 q 719
2016-06-28 23:39:42 C 21 05 24.91 +11 11 19.1 q 160
2016-06-28 23:42:16 C 21 05 25.12 +11 11 20.6 q 160
2016-06-28 23:44:50 C 21 05 25.32 +11 11 22.4 q 160
2016-06-30 06:42:24 C 21 07 58.43 +11 30 40.5 q 719
2016-07-01 01:03:43 C 21 09 26.76 +11 41 32.3 q 160
2016-07-01 01:06:15 C 21 09 26.95 +11 41 33.8 q 160
2016-07-01 01:08:47 C 21 09 27.12 +11 41 35.5 q 160
2016-07-01 23:59:53 C 21 11 16.98 +11 54 38.7 q 160
2016-07-02 00:02:25 C 21 11 17.18 +11 54 40.0 q 160