499986 (2011 NP)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1952854296 ± 9.41e-08
Semi-major axis (a)1.5922755607 AU ± 2.71e-09
Inclination (i)39.04659339° ± 1.96e-05
Long. of Asc. Node (Ω)295.10722412° ± 3.57e-06
Arg. of Perihelion (ω)354.99574768° ± 1.28e-04
Mean Anomaly (M)58.47005260° ± 8.56e-05
Mean Motion (n)0.4905518661°/day ± 1.25e-09
Perihelion dist (q)1.28132734 AU ± 1.50e-07
Aphelion dist (Q)1.90322378 AU ± 1.50e-07
Orbital Period2.00921931 yr ± 5.13e-09
Physical Parameters
H (abs. magnitude)19.91
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.354″
Uncertainty0
Orbit TypeAmor
MOID0.264127 AU
Observations Used210
Oppositions7
Arc Total2011-2025
First Observation Used2011-07-03
Last Observation Used2025-08-27
Observations (212)
Date Type RA Dec Mag Band Observatory
2017-07-14 11:39:58 C 20 03 03.89 -28 54 49.8 L T05
2017-07-14 11:46:59 C 20 03 02.08 -28 54 14.6 L T05
2017-07-14 12:01:03 C 20 02 58.52 -28 53 04.8 L T05
2017-07-18 23:48:05 C 19 38 02.02 -19 42 36.0 U 204
2017-07-18 23:55:45 C 19 38 00.30 -19 41 56.3 U 204
2017-07-19 00:03:21 C 19 37 58.62 -19 41 17.2 U 204
2017-07-20 06:36:13 C 19 31 31.94 -17 03 53.2 q H45
2017-07-20 06:37:57 C 19 31 31.60 -17 03 46.1 q H45
2017-07-20 06:39:01 C 19 31 31.35 -17 03 39.3 q H45
2017-07-20 06:39:53 C 19 31 31.20 -17 03 35.2 q H45
2017-07-20 06:40:58 C 19 31 30.87 -17 03 29.6 q H45
2017-07-20 06:44:54 C 19 31 30.09 -17 03 09.7 q H45
2017-07-23 07:31:18 C 19 17 21.49 -10 58 39.2 q H45
2017-07-23 07:33:57 C 19 17 21.00 -10 58 27.3 q H45
2017-07-23 07:35:29 C 19 17 20.70 -10 58 20.0 q H45
2017-07-23 07:37:09 C 19 17 20.39 -10 58 11.7 q H45
2017-07-23 07:38:19 C 19 17 20.14 -10 58 05.2 q H45
2017-07-23 07:40:13 C 19 17 19.81 -10 57 56.8 q H45
2017-07-25 06:10:05 C 19 09 13.41 -07 18 03.9 q H45
2017-07-25 06:11:58 C 19 09 13.02 -07 17 54.4 q H45
2017-07-25 06:13:21 C 19 09 12.83 -07 17 48.5 q H45
2017-07-25 06:15:26 C 19 09 12.44 -07 17 38.4 q H45
2017-07-25 06:17:27 C 19 09 12.10 -07 17 29.7 q H45
2017-07-25 06:20:20 C 19 09 11.58 -07 17 16.2 q H45
2019-07-28 05:41:36 C 18 30 57.86 -10 36 40.3 U I41
2019-07-28 05:42:16 C 18 30 57.79 -10 36 37.5 U I41
2019-07-28 06:11:05 C 18 30 54.23 -10 34 28.8 U I41
2019-07-28 06:13:41 C 18 30 53.89 -10 34 17.0 U I41
2019-07-28 06:14:21 C 18 30 53.82 -10 34 14.1 U I41
2019-07-28 06:32:18 C 18 30 51.61 -10 32 54.0 U I41
2019-07-28 06:52:42 C 18 30 49.11 -10 31 23.3 U I41
2019-08-01 05:13:18 C 18 21 13.77 -04 02 18.8 U I41
2019-08-01 05:36:10 C 18 21 11.60 -04 00 52.5 U I41
2019-08-01 05:42:38 C 18 21 10.99 -04 00 28.0 U I41
2019-08-01 05:45:21 C 18 21 10.73 -04 00 17.6 U I41
2019-08-01 05:58:23 C 18 21 09.49 -03 59 28.4 U I41
2019-08-01 05:59:02 C 18 21 09.43 -03 59 26.0 U I41
2019-08-02 06:10:31 C 18 19 06.04 -02 30 11.1 U I41
2019-08-02 06:18:25 C 18 19 05.35 -02 29 42.7 U I41
2019-08-02 06:45:56 C 18 19 02.93 -02 28 03.6 U I41
2019-08-02 06:56:40 C 18 19 02.00 -02 27 24.8 U I41
2019-08-02 06:57:19 C 18 19 01.93 -02 27 22.6 U I41
2021-07-09 01:02:07 C 19 16 00.36 -55 19 33.8 q Y00
2021-07-09 01:18:10 C 19 15 55.45 -55 18 28.6 q Y00
2021-07-09 01:32:56 C 19 15 50.99 -55 17 27.9 q Y00
2021-07-16 10:07:11 C 18 34 29.95 -41 14 10.4 V T08
2021-07-16 10:11:49 C 18 34 29.06 -41 13 46.4 V T08
2021-07-16 10:22:27 C 18 34 26.98 -41 12 50.1 V T08
2021-07-16 11:12:09 C 18 34 17.43 -41 08 27.4 V T08
2023-08-18 06:36:08 C 17 32 27.525 +02 35 50.84 X F52