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
2016-07-23 07:53:37 C 21 44 13.08 +13 48 37.2 463
2016-07-23 08:18:37 C 21 44 14.11 +13 48 33.7 463
2016-07-24 19:05:43 C 21 45 52.09 +13 42 50.6 q D29
2016-07-24 19:34:28 C 21 45 53.24 +13 42 44.8 q D29
2016-07-24 20:03:14 C 21 45 54.41 +13 42 38.8 q D29
2016-07-27 05:32:49 C 21 48 28.92 +13 29 05.2 463
2016-07-27 07:09:21 C 21 48 32.62 +13 28 36.5 463
2016-07-27 07:34:03 C 21 48 33.57 +13 28 31.4 463
2016-07-27 07:59:45 C 21 48 34.45 +13 28 23.6 463
2016-08-01 16:42:50 C 21 53 29.60 +12 40 28.1 q D29
2016-08-01 17:03:12 C 21 53 30.16 +12 40 18.6 q D29
2016-08-01 17:23:34 C 21 53 30.71 +12 40 09.2 q D29
2016-08-01 23:51:50 C 21 53 44.37 +12 37 03.0 17.4 c 122
2016-08-01 23:57:22 C 21 53 44.52 +12 37 00.5 17.4 c 122
2016-08-02 00:04:52 C 21 53 44.73 +12 36 57.0 17.3 c 122
2016-08-02 00:11:32 C 21 53 44.92 +12 36 53.8 17.3 c 122
2016-08-02 08:25:25 C 21 54 00.88 +12 33 00.1 q H45
2016-08-02 08:27:13 C 21 54 00.94 +12 32 59.1 q H45
2016-08-02 08:28:38 C 21 54 00.97 +12 32 58.5 q H45
2016-08-02 08:29:58 C 21 54 01.01 +12 32 57.7 q H45
2016-08-02 08:31:06 C 21 54 01.04 +12 32 57.3 q H45
2016-08-02 08:32:15 C 21 54 01.08 +12 32 56.7 q H45
2016-08-03 00:46:46 C 21 54 34.05 +12 24 55.6 16.7 q J43
2016-08-03 00:59:40 C 21 54 34.38 +12 24 48.9 16.8 q J43
2016-08-03 01:12:28 C 21 54 34.71 +12 24 42.5 16.8 q J43
2016-08-03 01:25:16 C 21 54 35.03 +12 24 36.1 16.8 q J43
2016-08-04 08:30:02 C 21 55 33.54 +12 08 09.5 q H45
2016-08-04 08:31:36 C 21 55 33.58 +12 08 08.7 q H45
2016-08-04 08:33:06 C 21 55 33.62 +12 08 07.8 q H45
2016-08-04 08:34:37 C 21 55 33.65 +12 08 06.9 q H45
2016-08-04 08:36:08 C 21 55 33.69 +12 08 06.1 q H45
2016-08-04 08:37:37 C 21 55 33.72 +12 08 05.3 q H45
2016-08-07 11:29:11 C 21 57 44.39 +11 23 39.7 L T05
2016-08-07 11:51:47 C 21 57 44.84 +11 23 25.5 L T05
2016-08-07 12:15:35 C 21 57 45.33 +11 23 10.3 L T05
2016-08-07 12:37:42 C 21 57 45.74 +11 22 55.7 L T05
2016-08-07 21:29:47 C 21 58 01.57 +11 16 59.1 q A13
2016-08-07 22:23:18 C 21 58 02.76 +11 16 24.5 q A13
2016-08-08 17:19:16 C 21 58 31.84 +11 03 57.8 q D29
2016-08-08 17:25:38 C 21 58 31.95 +11 03 53.4 q D29
2016-08-08 17:39:38 C 21 58 32.23 +11 03 44.0 q D29
2016-08-08 17:46:00 C 21 58 32.35 +11 03 39.6 q D29
2016-08-08 18:00:00 C 21 58 32.62 +11 03 30.1 q D29
2016-08-08 18:06:21 C 21 58 32.74 +11 03 25.8 q D29
2016-08-08 22:52:39 C 21 58 41.03 +11 00 07.3 q 160
2016-08-08 22:54:34 C 21 58 41.07 +11 00 05.9 q 160
2016-08-08 22:56:29 C 21 58 41.11 +11 00 04.6 q 160
2016-08-09 03:26:26 C 21 58 48.59 +10 57 00.3 q W19
2016-08-09 03:32:49 C 21 58 48.73 +10 56 55.9 q W19
2016-08-09 03:39:14 C 21 58 48.87 +10 56 51.6 q W19