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
2023-08-18 06:49:10 C 17 32 27.810 +02 36 16.28 X F52
2023-08-18 07:02:11 C 17 32 28.086 +02 36 41.74 X F52
2023-09-08 06:25:48 C 17 52 32.176 +13 30 42.92 X F51
2023-09-08 06:59:16 C 17 52 33.796 +13 31 11.50 X F51
2023-09-08 07:15:51 C 17 52 34.587 +13 31 25.36 X F51
2025-07-03 23:32:50 C 17 32 38.380 -72 12 14.20 V 807
2025-07-03 23:40:21 C 17 32 36.780 -72 11 48.90 V 807
2025-07-03 23:47:53 C 17 32 35.260 -72 11 23.40 V 807
2025-08-27 06:42:34 C 17 28 46.829 +04 20 06.45 X F52
2025-08-27 06:54:29 C 17 28 47.396 +04 20 23.39 X F52
2025-08-27 07:06:23 C 17 28 47.970 +04 20 40.61 X F52
2025-08-27 07:18:13 C 17 28 48.546 +04 20 57.53 X F52