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
2010-04-11 01:12:22 S 20 28 24.139 -67 51 16.20 L C51
2010-04-11 04:22:54 S 20 28 46.35 -67 48 43.0 L C51
2010-04-11 07:33:24 S 20 29 08.39 -67 46 11.1 L C51
2010-04-11 10:43:56 S 20 29 30.56 -67 43 40.7 L C51
2010-06-16 07:25:26 C 19 32 50.68 -28 48 18.1 c 926
2010-06-16 07:43:39 C 19 32 48.02 -28 47 26.6 c 926
2010-06-16 08:06:55 C 19 32 44.67 -28 46 20.6 c 926
2010-06-17 09:11:27 C 19 29 16.19 -27 34 32.9 o 291
2010-06-17 09:18:41 C 19 29 15.11 -27 34 12.7 o 291
2010-06-17 09:24:40 C 19 29 14.29 -27 33 54.5 o 291
2010-06-17 13:20:56 C 19 28 41.30 -27 22 30.6 o F65
2010-06-17 13:21:59 C 19 28 41.17 -27 22 27.6 o F65
2010-06-22 00:29:54 C 19 14 06.59 -22 10 02.2 v 204
2010-06-22 00:35:36 C 19 14 05.82 -22 09 45.3 v 204
2010-06-22 00:40:39 C 19 14 05.10 -22 09 30.2 v 204
2010-06-25 06:54:28 C 19 03 51.89 -18 21 53.9 o H21
2010-06-25 07:03:08 C 19 03 50.74 -18 21 29.0 o H21
2010-06-25 07:11:40 C 19 03 49.61 -18 21 04.4 o H21
2010-06-25 07:20:26 C 19 03 48.45 -18 20 39.2 o H21
2010-07-08 21:36:50 C 18 28 11.17 -04 33 09.4 u 560
2010-07-08 21:39:54 C 18 28 10.90 -04 33 02.6 u 560
2010-07-08 21:42:57 C 18 28 10.63 -04 32 56.9 u 560
2010-07-10 03:01:40 C 18 25 39.25 -03 33 08.8 o H26
2010-07-10 03:04:08 C 18 25 38.94 -03 33 02.4 o H26
2010-07-10 03:06:39 C 18 25 38.53 -03 32 57.3 o H26
2010-07-23 04:04:47 C 18 05 56.22 +04 26 53.4 o H21
2010-07-23 04:15:40 C 18 05 55.77 +04 27 05.5 o H21
2010-07-23 04:18:36 C 18 05 55.62 +04 27 08.8 o H21
2010-07-23 04:28:13 C 18 05 55.21 +04 27 20.0 o H21
2011-11-24 11:03:48 C 06 16 08.500 +41 02 27.39 L F51
2011-11-24 11:24:07 C 06 16 07.191 +41 02 21.23 L F51
2011-11-24 11:44:21 C 06 16 05.876 +41 02 15.02 L F51
2011-11-24 12:04:40 C 06 16 04.547 +41 02 08.73 L F51
2011-12-31 05:47:44 C 05 05 36.20 +31 52 36.9 r G96
2011-12-31 05:58:35 C 05 05 35.41 +31 52 27.3 r G96
2011-12-31 06:09:25 C 05 05 34.58 +31 52 17.8 r G96
2011-12-31 06:20:13 C 05 05 33.79 +31 52 08.1 r G96
2012-01-27 03:22:00 C 04 36 45.46 +22 50 50.7 r G96
2012-01-27 03:29:30 C 04 36 45.36 +22 50 45.1 r G96
2012-01-27 03:37:02 C 04 36 45.18 +22 50 39.8 r G96
2012-01-27 03:44:29 C 04 36 45.03 +22 50 34.4 r G96
2015-06-15 10:12:05 C 21 01 10.87 -03 20 02.9 R G45
2015-06-15 10:18:46 C 21 01 10.33 -03 19 48.4 R G45
2015-06-15 10:25:52 C 21 01 09.88 -03 19 33.5 R G45
2015-06-15 10:46:46 C 21 01 08.50 -03 18 50.2 R G45
2015-06-15 10:47:15 C 21 01 08.53 -03 18 48.3 R G45
2015-06-17 10:00:01 C 20 58 07.71 -01 41 27.4 R G45
2015-06-17 10:09:14 C 20 58 07.08 -01 41 08.2 R G45
2015-06-17 10:16:15 C 20 58 06.60 -01 40 54.1 R G45
2015-06-17 10:24:39 C 20 58 06.02 -01 40 36.2 R G45