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
2015-06-17 10:32:13 C 20 58 05.50 -01 40 20.9 R G45
2015-06-17 10:39:32 C 20 58 04.95 -01 40 06.0 R G45
2015-06-19 12:29:20 C 20 54 39.342 +00 02 14.89 L F51
2015-06-19 12:48:04 C 20 54 37.934 +00 02 53.18 L F51
2015-06-19 13:06:50 C 20 54 36.523 +00 03 31.59 L F51
2015-06-21 08:58:37 C 20 51 23.20 +01 32 46.1 q 703
2015-06-21 09:04:24 C 20 51 22.73 +01 32 58.2 q 703
2015-06-21 09:10:10 C 20 51 22.32 +01 33 09.4 q 703
2015-06-21 09:15:57 C 20 51 21.78 +01 33 21.3 q 703
2015-06-21 11:39:08 C 20 51 11.175 +01 38 13.39 L F51
2015-06-21 11:56:17 C 20 51 09.811 +01 38 47.90 L F51
2015-06-21 12:13:31 C 20 51 08.440 +01 39 22.81 L F51
2015-06-21 12:31:01 C 20 51 07.041 +01 39 58.24 L F51
2015-06-24 12:19:18 C 20 45 26.067 +04 03 32.46 L F51
2015-06-24 12:54:12 C 20 45 23.061 +04 04 41.14 L F51
2015-06-24 13:11:46 C 20 45 21.546 +04 05 15.91 L F51
2016-11-20 08:36:04 C 06 59 20.75 +35 14 12.3 u H21
2016-11-20 09:07:51 C 06 59 19.47 +35 14 01.9 u H21
2016-11-20 09:38:40 C 06 59 18.24 +35 13 51.9 u H21
2017-02-16 01:02:04 C 05 04 13.52 +12 08 18.7 u H21
2017-02-16 01:24:08 C 05 04 13.60 +12 08 08.0 u H21
2017-02-16 01:49:09 C 05 04 13.72 +12 07 56.2 u H21
2017-02-18 01:19:08 C 05 04 36.10 +11 45 55.9 u H21
2017-02-18 01:51:42 C 05 04 36.36 +11 45 41.3 u H21
2017-02-18 02:18:25 C 05 04 36.58 +11 45 29.3 u H21
2017-02-19 01:34:35 C 05 04 51.14 +11 35 04.0 u H21
2017-02-19 01:55:49 C 05 04 51.36 +11 34 54.3 u H21
2017-02-19 02:17:26 C 05 04 51.58 +11 34 44.9 u H21
2020-05-24 09:24:59 C 21 44 47.02 -04 09 46.2 V G96
2020-05-24 09:33:09 C 21 44 47.15 -04 09 32.1 V G96
2020-05-24 09:41:20 C 21 44 47.28 -04 09 19.3 V G96
2020-05-24 09:49:32 C 21 44 47.48 -04 09 05.3 V G96
2020-05-31 13:42:04 C 21 47 07.594 +00 38 35.15 U F52
2020-05-31 13:57:57 C 21 47 07.664 +00 39 01.91 U F52
2020-05-31 14:13:52 C 21 47 07.749 +00 39 28.94 U F52
2020-05-31 14:29:46 C 21 47 07.823 +00 39 55.78 U F52
2020-06-23 12:17:38 C 21 38 53.997 +16 11 12.42 U F51
2020-06-23 12:45:54 C 21 38 52.813 +16 11 58.58 U F51
2020-06-23 13:00:14 C 21 38 52.198 +16 12 21.74 U F51
2020-07-15 22:26:49 C 21 05 27.02 +28 34 29.2 V C95
2020-07-15 23:01:38 C 21 05 24.11 +28 35 06.5 V C95
2021-12-08 08:57:09 C 07 17 37.44 +24 33 51.8 V G96
2021-12-08 09:04:38 C 07 17 36.99 +24 33 47.4 V G96
2021-12-08 09:12:07 C 07 17 36.56 +24 33 42.9 V G96
2021-12-08 09:19:35 C 07 17 36.12 +24 33 38.2 V G96
2022-01-26 03:30:29 C 05 48 41.02 +09 12 44.5 V G96
2022-01-26 03:38:36 C 05 48 40.58 +09 12 38.8 V G96
2022-01-26 03:46:44 C 05 48 40.09 +09 12 33.7 V G96
2022-01-26 03:54:51 C 05 48 39.65 +09 12 27.7 V G96
2022-02-04 05:52:25 C 05 38 51.563 +06 52 25.22 U F52