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
2011-07-03 09:47:15 C 22 09 34.20 -21 09 12.2 u 703
2011-07-03 09:58:00 C 22 09 32.54 -21 08 35.4 u 703
2011-07-03 10:19:52 C 22 09 29.34 -21 07 19.7 u 703
2011-07-03 10:47:15 C 22 09 25.26 -21 05 43.8 u 703
2011-07-03 10:51:50 C 22 09 24.60 -21 05 27.2 u 703
2011-07-03 18:12:33 C 22 08 22.60 -20 39 44.0 c D35
2011-07-03 18:13:46 C 22 08 22.40 -20 39 39.7 c D35
2011-07-03 18:15:27 C 22 08 22.15 -20 39 33.9 c D35
2011-07-03 18:16:16 C 22 08 22.03 -20 39 31.1 c D35
2011-07-03 18:17:04 C 22 08 21.91 -20 39 28.2 c D35
2011-07-03 18:18:43 C 22 08 21.67 -20 39 22.5 c D35
2011-07-03 18:19:31 C 22 08 21.53 -20 39 19.4 c D35
2011-07-03 18:20:23 C 22 08 21.42 -20 39 16.6 c D35
2011-07-03 18:21:11 C 22 08 21.30 -20 39 14.0 c D35
2011-07-03 18:22:01 C 22 08 21.18 -20 39 10.9 c D35
2011-07-03 18:22:50 C 22 08 21.06 -20 39 08.0 c D35
2011-07-03 18:23:38 C 22 08 20.92 -20 39 05.1 c D35
2011-07-03 18:24:28 C 22 08 20.81 -20 39 02.3 c D35
2011-07-03 18:25:18 C 22 08 20.68 -20 38 59.2 c D35
2011-07-03 18:31:28 C 22 08 19.26 -20 38 40.4 o 300
2011-07-03 18:36:08 C 22 08 18.63 -20 38 24.2 o 300
2011-07-03 18:40:47 C 22 08 18.00 -20 38 07.5 o 300
2011-07-03 18:45:26 C 22 08 17.25 -20 37 51.1 o 300
2011-07-03 19:26:21 C 22 08 11.03 -20 35 00.8 u D90
2011-07-03 19:31:46 C 22 08 10.23 -20 34 41.4 u D90
2011-07-03 19:37:10 C 22 08 09.48 -20 34 22.3 u D90
2011-07-04 05:53:17 C 22 06 42.08 -19 57 56.1 u I19
2011-07-04 05:58:30 C 22 06 41.24 -19 57 37.0 u I19
2011-07-04 06:03:48 C 22 06 40.37 -19 57 18.8 u I19
2011-07-05 08:45:54 C 22 02 42.69 -18 20 31.0 o H21
2011-07-05 08:52:18 C 22 02 41.69 -18 20 07.3 o H21
2011-07-05 08:57:35 C 22 02 40.85 -18 19 47.7 o H21
2011-07-05 15:50:36 C 22 01 38.95 -17 53 38.3 u D90
2011-07-05 16:01:38 C 22 01 37.17 -17 52 57.4 u D90
2011-07-06 06:34:31 C 21 59 23.04 -16 58 28.3 o H21
2011-07-06 06:46:54 C 21 59 21.03 -16 57 41.2 o H21
2011-07-06 06:50:25 C 21 59 20.47 -16 57 27.8 o H21
2011-07-06 06:58:13 C 21 59 19.20 -16 56 58.5 o H21
2011-07-07 05:44:53 C 21 55 43.71 -15 28 23.5 o 807
2011-07-07 05:49:41 C 21 55 42.92 -15 28 04.7 o 807
2011-07-07 05:54:29 C 21 55 42.12 -15 27 45.8 o 807
2011-07-07 05:59:16 C 21 55 41.31 -15 27 27.1 o 807
2011-07-09 06:34:30 C 21 47 40.94 -12 12 17.1 t H21
2011-07-09 06:41:14 C 21 47 39.74 -12 11 49.1 t H21
2011-07-09 06:47:57 C 21 47 38.57 -12 11 21.5 t H21
2011-07-09 06:54:40 C 21 47 37.39 -12 10 54.1 t H21
2011-07-10 06:31:35 C 21 43 34.41 -10 32 23.2 t H21
2011-07-10 06:37:24 C 21 43 33.37 -10 31 58.8 t H21
2011-07-10 06:43:13 C 21 43 32.32 -10 31 34.4 t H21
2011-07-10 06:49:13 C 21 43 31.26 -10 31 09.0 t H21