311321 (2005 NP1)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2965163346 ± 6.32e-08
Semi-major axis (a)1.8267775958 AU ± 7.65e-09
Inclination (i)34.71425599° ± 1.61e-05
Long. of Asc. Node (Ω)274.95178609° ± 5.53e-06
Arg. of Perihelion (ω)307.60529883° ± 2.58e-05
Mean Anomaly (M)116.42316399° ± 3.37e-05
Mean Motion (n)0.3991937758°/day ± 2.51e-09
Perihelion dist (q)1.28510820 AU ± 1.15e-07
Aphelion dist (Q)2.36844699 AU ± 1.16e-07
Orbital Period2.46904221 yr ± 1.55e-08
Physical Parameters
H (abs. magnitude)18.61
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.319″
Uncertainty0
Orbit TypeAmor
MOID0.368617 AU
Observations Used159
Oppositions12
Arc Total2005-2025
First Observation Used2005-07-03
Last Observation Used2025-06-23
Observations (210)
Date Type RA Dec Mag Band Observatory
2022-02-04 06:08:39 C 05 38 50.970 +06 52 15.81 U F52
2022-02-04 06:24:54 C 05 38 50.368 +06 52 06.38 U F52
2022-03-03 02:57:35 C 05 34 00.09 +02 21 10.8 V G96
2022-03-03 03:05:40 C 05 34 00.24 +02 21 08.7 V G96
2022-03-03 03:13:45 C 05 34 00.32 +02 21 06.9 V G96
2022-03-03 03:21:52 C 05 34 00.42 +02 21 04.4 V G96
2025-06-23 12:14:29 C 22 16 35.187 +23 24 42.33 X F52
2025-06-23 12:33:48 C 22 16 34.930 +23 25 10.12 X F52
2025-06-23 12:53:06 C 22 16 34.686 +23 25 37.73 X F52
2025-06-23 13:12:24 C 22 16 34.434 +23 26 05.35 X F52