277473 (2005 WD1)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4415289561 ± 7.33e-08
Semi-major axis (a)2.1999271076 AU ± 1.02e-08
Inclination (i)43.07339274° ± 1.51e-05
Long. of Asc. Node (Ω)52.26937114° ± 1.20e-05
Arg. of Perihelion (ω)285.94562996° ± 1.81e-05
Mean Anomaly (M)99.93567016° ± 1.23e-05
Mean Motion (n)0.3020646053°/day ± 2.11e-09
Perihelion dist (q)1.22859559 AU ± 1.61e-07
Aphelion dist (Q)3.17125863 AU ± 1.62e-07
Orbital Period3.26296516 yr ± 2.28e-08
Physical Parameters
H (abs. magnitude)16.81
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual1.434″
Uncertainty0
Orbit TypeAmor
MOID0.495785 AU
Observations Used1085
Oppositions15
Arc Total2004-2026
First Observation Used2004-04-17
Last Observation Used2026-01-11
Observations (1940)
Date Type RA Dec Mag Band Observatory
2011-05-01 23:58:13 C 15 09 11.43 -02 16 02.4 c A24
2011-05-02 00:20:26 C 15 09 09.64 -02 16 09.8 c A24
2011-05-11 12:25:00 C 14 49 32.618 -03 49 16.61 L F51
2011-05-11 12:39:38 C 14 49 31.288 -03 49 23.18 L F51
2011-05-12 23:21:21 C 14 46 24.90 -04 05 32.1 v 204
2011-05-12 23:39:52 C 14 46 23.24 -04 05 40.4 v 204
2011-05-17 05:56:22 C 14 37 09.77 -04 55 49.6 o H21
2011-05-17 06:08:15 C 14 37 08.63 -04 55 56.6 o H21
2011-05-19 23:22:56 C 14 31 16.64 -05 29 55.6 v 204
2011-05-19 23:53:41 C 14 31 13.85 -05 30 11.6 v 204
2011-06-07 05:04:32 C 13 55 42.88 -09 46 27.7 r G96
2011-06-07 05:12:07 C 13 55 42.27 -09 46 32.1 r G96
2011-06-07 05:19:33 C 13 55 41.73 -09 46 37.0 r G96
2011-06-07 05:27:10 C 13 55 41.19 -09 46 41.8 r G96
2017-03-03 08:02:32 C 14 22 10.02 +36 58 11.5 u H21
2017-03-03 08:25:36 C 14 22 09.36 +36 58 20.7 u H21
2017-03-03 08:48:56 C 14 22 08.68 +36 58 30.2 u H21
2017-03-18 07:58:01 C 14 08 34.07 +39 07 09.9 u H21
2017-03-18 08:12:05 C 14 08 33.37 +39 07 14.4 u H21
2017-03-18 08:35:07 C 14 08 32.25 +39 07 21.5 u H21
2017-03-22 07:48:36 C 14 03 45.39 +39 34 23.6 u H21
2017-03-22 08:14:04 C 14 03 43.99 +39 34 29.9 u H21
2017-03-22 08:35:16 C 14 03 42.88 +39 34 35.8 u H21
2017-03-24 07:31:30 C 14 01 11.74 +39 46 22.8 u H21
2017-03-24 07:50:02 C 14 01 10.74 +39 46 27.2 u H21
2017-03-24 08:06:27 C 14 01 09.82 +39 46 31.2 u H21
2017-04-17 04:02:07 C 13 25 27.00 +40 22 39.1 u H21
2017-04-17 04:25:59 C 13 25 25.42 +40 22 35.9 u H21
2017-04-17 04:50:37 C 13 25 23.82 +40 22 33.0 u H21
2017-04-25 03:23:05 C 13 13 24.02 +39 44 40.4 u H21
2017-04-25 03:44:18 C 13 13 22.68 +39 44 34.7 u H21
2017-04-25 04:09:12 C 13 13 21.16 +39 44 28.5 u H21
2018-11-04 12:48:35 C 06 02 59.63 +45 08 28.5 U T08
2018-11-04 13:01:20 C 06 02 58.77 +45 08 47.1 U T08
2018-11-04 13:12:44 C 06 02 58.12 +45 09 04.6 U T08
2018-11-04 13:24:51 C 06 02 57.22 +45 09 22.9 U T08
2018-11-13 06:41:05 C 05 46 15.30 +50 19 55.9 V 703
2018-11-13 06:58:36 C 05 46 13.35 +50 20 17.2 V 703
2018-11-13 07:06:17 C 05 46 12.44 +50 20 28.4 V 703
2018-11-24 23:13:40 C 05 11 35.57 +56 03 46.0 V C95
2018-11-24 23:24:43 C 05 11 34.05 +56 03 56.8 V C95
2018-11-24 23:35:45 C 05 11 32.40 +56 04 08.0 V C95
2018-11-24 23:46:47 C 05 11 30.62 +56 04 19.9 V C95
2018-12-02 11:12:33 C 04 43 44.42 +58 34 35.8 U T08
2018-12-02 11:36:07 C 04 43 40.68 +58 34 53.3 U T08
2018-12-02 11:41:25 C 04 43 39.66 +58 34 56.4 U T08
2018-12-02 12:00:59 C 04 43 36.46 +58 35 08.6 U T08
2018-12-05 04:59:57 C 04 33 07.70 +59 13 59.4 V G96
2018-12-05 05:08:26 C 04 33 06.15 +59 14 05.0 V G96
2018-12-05 05:16:55 C 04 33 04.74 +59 14 09.5 V G96