554126 (2012 NP)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4714184185 ± 9.78e-09
Semi-major axis (a)2.0909853458 AU ± 1.36e-09
Inclination (i)7.37349891° ± 2.07e-06
Long. of Asc. Node (Ω)149.23839760° ± 6.14e-06
Arg. of Perihelion (ω)161.05493530° ± 8.97e-06
Mean Anomaly (M)147.57521772° ± 3.27e-06
Mean Motion (n)0.3259761247°/day ± 3.17e-10
Perihelion dist (q)1.10525634 AU ± 2.05e-08
Aphelion dist (Q)3.07671435 AU ± 2.05e-08
Orbital Period3.02361495 yr ± 2.94e-09
Physical Parameters
H (abs. magnitude)21.40
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.285″
Uncertainty0
Orbit TypeAmor
MOID0.096506 AU
Observations Used433
Oppositions14
Arc Total2003-2024
First Observation Used2003-10-23
Last Observation Used2024-06-07
Observations (448)
Date Type RA Dec Mag Band Observatory
2015-08-14 05:44:43 C 20 17 33.67 -05 26 04.2 R G45
2015-08-14 05:51:59 C 20 17 35.93 -05 26 24.0 R G45
2015-08-14 05:56:18 C 20 17 37.26 -05 26 35.2 R G45
2015-08-14 05:59:19 C 20 17 38.20 -05 26 43.3 R G45
2015-08-14 06:03:38 C 20 17 39.55 -05 26 54.5 R G45
2015-08-14 06:09:21 C 20 17 41.31 -05 27 09.9 R G45
2015-08-14 07:42:34 C 20 18 09.27 -05 31 15.7 q H45
2015-08-14 07:43:56 C 20 18 09.72 -05 31 19.3 q H45
2015-08-14 07:45:17 C 20 18 10.14 -05 31 22.8 q H45
2015-08-14 07:46:49 C 20 18 10.64 -05 31 26.7 q H45
2015-08-14 07:48:34 C 20 18 11.17 -05 31 31.4 q H45
2015-08-18 04:42:42 C 20 48 49.96 -09 30 03.4 o 691
2015-08-18 05:19:58 C 20 49 01.35 -09 31 35.7 o 691
2015-08-18 05:57:14 C 20 49 12.71 -09 33 07.7 o 691
2015-08-19 04:40:02 C 20 56 34.60 -10 28 02.5 q 703
2015-08-19 04:48:42 C 20 56 37.24 -10 28 23.4 q 703
2015-08-19 04:57:23 C 20 56 39.85 -10 28 44.9 q 703
2015-08-24 11:25:27 C 21 35 19.36 -14 55 51.3 u Q60
2015-08-24 11:39:11 C 21 35 23.08 -14 56 16.2 u Q60
2015-08-24 11:53:00 C 21 35 26.81 -14 56 42.9 u Q60
2015-08-27 05:51:01 C 21 53 31.86 -16 49 19.1 q H21
2015-08-27 05:56:05 C 21 53 33.12 -16 49 26.8 q H21
2015-08-27 06:01:03 C 21 53 34.33 -16 49 34.5 q H21
2015-08-27 06:05:59 C 21 53 35.55 -16 49 42.0 q H21
2015-08-27 06:10:48 C 21 53 36.73 -16 49 49.4 q H21
2015-09-02 23:23:44 C 22 30 55.01 -20 00 27.2 q Y00
2015-09-02 23:37:54 C 22 30 57.66 -20 00 40.5 q Y00
2015-09-02 23:51:58 C 22 31 00.32 -20 00 53.9 q Y00
2015-09-10 12:32:34 C 23 01 25.90 -21 48 50.5 u Q60
2015-09-10 12:46:08 C 23 01 27.74 -21 48 56.6 u Q60
2015-09-10 12:59:53 C 23 01 29.51 -21 49 02.4 u Q60
2015-09-14 06:30:25 C 23 12 59.07 -22 13 11.6 R G45
2015-09-14 06:30:30 C 23 12 59.07 -22 13 11.8 R G45
2015-09-14 06:38:33 C 23 12 59.95 -22 13 13.3 R G45
2015-09-14 06:38:39 C 23 12 59.92 -22 13 13.7 R G45
2015-09-14 06:46:37 C 23 13 00.80 -22 13 14.7 R G45
2015-09-14 06:46:42 C 23 13 00.80 -22 13 14.9 R G45
2015-09-14 06:53:09 C 23 13 01.46 -22 13 16.1 R G45
2015-09-14 07:00:29 C 23 13 02.25 -22 13 17.8 R G45
2015-09-14 07:01:42 C 23 13 02.38 -22 13 17.8 R G45
2015-09-15 06:32:17 C 23 15 44.55 -22 16 48.4 R G45
2015-09-15 06:40:20 C 23 15 45.37 -22 16 50.1 R G45
2015-09-15 06:46:56 C 23 15 46.01 -22 16 50.6 R G45
2015-09-15 06:54:19 C 23 15 46.76 -22 16 52.0 R G45
2015-09-15 07:02:16 C 23 15 47.56 -22 16 52.7 R G45
2015-10-08 08:03:26 C 23 56 00.941 -20 27 01.55 L F51
2015-10-08 08:18:16 C 23 56 01.558 -20 26 55.59 L F51
2015-10-08 08:33:06 C 23 56 02.170 -20 26 49.42 L F51
2015-10-09 08:07:16 C 23 57 10.671 -20 16 48.95 L F51
2015-10-09 08:22:05 C 23 57 11.278 -20 16 42.77 L F51