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
2005-10-24 02:05:34 C 18 52 38.09 +04 23 56.7 d 291
2005-10-24 02:11:10 C 18 52 38.50 +04 23 57.1 d 291
2005-10-24 02:17:32 C 18 52 39.12 +04 23 58.3 d 291
2006-11-21 06:56:25 C 05 37 37.18 +46 39 21.3 696
2006-11-21 07:42:47 C 05 37 33.66 +46 39 08.7 696
2009-11-17 12:44:02 C 10 27 07.61 -11 44 46.1 o 291
2009-11-17 12:49:33 C 10 27 07.92 -11 44 53.8 o 291
2009-11-17 12:54:57 C 10 27 08.42 -11 45 02.4 o 291
2010-04-03 13:47:28 S 20 02 54.012 -70 06 53.28 L C51
2010-04-04 04:04:42 S 20 05 16.68 -69 56 39.8 L C51
2010-04-04 04:04:53 S 20 05 16.61 -69 56 40.8 L C51
2010-04-04 05:40:03 S 20 05 32.53 -69 55 31.0 L C51
2010-04-04 07:15:24 S 20 05 47.74 -69 54 18.9 L C51
2010-04-04 08:50:34 S 20 06 03.458 -69 53 13.56 L C51
2010-04-04 12:01:05 S 20 06 34.34 -69 50 56.8 L C51
2010-04-04 16:46:57 S 20 07 20.75 -69 47 28.3 L C51
2010-04-04 19:57:29 S 20 07 50.582 -69 45 12.31 L C51
2010-04-04 23:08:00 S 20 08 21.05 -69 42 52.9 L C51
2010-04-05 00:43:10 S 20 08 35.909 -69 41 41.21 L C51
2010-04-05 03:53:41 S 20 09 06.490 -69 39 26.53 L C51
2010-04-05 03:53:52 S 20 09 06.19 -69 39 23.7 L C51
2010-04-05 05:29:02 S 20 09 20.88 -69 38 13.3 L C51
2010-04-05 07:04:23 S 20 09 35.72 -69 37 04.5 L C51
2010-04-05 08:39:33 S 20 09 50.82 -69 35 54.7 L C51
2010-04-05 11:50:04 S 20 10 19.634 -69 33 35.78 L C51
2010-04-05 13:25:25 S 20 10 34.908 -69 32 23.17 L C51
2010-04-05 18:11:06 S 20 11 18.703 -69 28 54.26 L C51
2010-04-06 00:32:08 S 20 12 16.318 -69 24 12.10 L C51
2010-04-06 00:32:19 S 20 12 16.589 -69 24 10.66 L C51
2010-04-09 06:20:06 S 20 23 08.021 -68 25 01.16 L C51
2010-04-09 06:20:18 S 20 23 07.83 -68 24 59.7 L C51
2010-04-09 07:55:27 S 20 23 20.314 -68 23 47.22 L C51
2010-04-09 12:41:19 S 20 23 56.70 -68 20 04.3 L C51
2010-04-09 15:51:51 S 20 24 20.63 -68 17 34.0 L C51
2010-04-09 19:02:22 S 20 24 44.14 -68 15 05.7 L C51
2010-04-09 20:37:32 S 20 24 56.54 -68 13 48.1 L C51
2010-04-09 22:12:53 S 20 25 08.36 -68 12 36.9 L C51
2010-04-10 01:23:24 S 20 25 31.85 -68 10 06.6 L C51
2010-04-10 02:58:34 S 20 25 43.89 -68 08 52.2 L C51
2010-04-10 04:33:55 S 20 25 55.478 -68 07 36.48 L C51
2010-04-10 06:09:05 S 20 26 06.64 -68 06 21.0 L C51
2010-04-10 07:44:26 S 20 26 18.44 -68 05 04.2 L C51
2010-04-10 09:19:36 S 20 26 30.31 -68 03 51.3 L C51
2010-04-10 10:54:57 S 20 26 42.173 -68 02 36.38 L C51
2010-04-10 12:30:07 S 20 26 52.798 -68 01 22.84 L C51
2010-04-10 12:30:18 S 20 26 53.443 -68 01 20.93 L C51
2010-04-10 14:05:28 S 20 27 04.558 -68 00 06.62 L C51
2010-04-10 15:40:49 S 20 27 16.49 -67 58 47.8 L C51
2010-04-10 18:51:20 S 20 27 38.83 -67 56 17.9 L C51
2010-04-10 22:01:51 S 20 28 01.39 -67 53 45.7 L C51