438897 (2009 WN)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2215401764 ± 2.38e-08
Semi-major axis (a)1.3800720927 AU ± 1.72e-09
Inclination (i)32.78799951° ± 6.61e-06
Long. of Asc. Node (Ω)249.32824765° ± 3.81e-06
Arg. of Perihelion (ω)236.17749230° ± 9.96e-06
Mean Anomaly (M)282.41116775° ± 1.05e-05
Mean Motion (n)0.6079384549°/day ± 1.13e-09
Perihelion dist (q)1.07433068 AU ± 3.29e-08
Aphelion dist (Q)1.68581351 AU ± 3.29e-08
Orbital Period1.62125997 yr ± 3.02e-09
Physical Parameters
H (abs. magnitude)18.84
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.251″
Uncertainty0
Orbit TypeAmor
MOID0.173497 AU
Observations Used217
Oppositions9
Arc Total2002-2025
First Observation Used2002-06-21
Last Observation Used2025-12-02
Observations (258)
Date Type RA Dec Mag Band Observatory
2002-06-21 05:10:20 C 16 57 10.50 +01 13 16.3 c 644
2002-06-21 05:41:15 C 16 57 07.99 +01 13 54.3 c 644
2002-06-21 06:13:02 C 16 57 05.41 +01 14 33.4 c 644
2002-06-30 06:02:08 C 16 42 40.41 +04 55 30.5 c 644
2002-06-30 06:32:26 C 16 42 38.60 +04 55 56.0 c 644
2002-06-30 07:02:30 C 16 42 36.86 +04 56 21.1 c 644
2009-11-16 10:16:01 C 08 43 29.17 +09 37 00.6 r 703
2009-11-16 10:33:03 C 08 43 30.46 +09 35 54.0 r 703
2009-11-16 10:49:54 C 08 43 31.72 +09 34 46.6 r 703
2009-11-16 11:06:42 C 08 43 32.98 +09 33 40.7 r 703
2009-11-16 12:03:22 C 08 43 37.27 +09 29 56.1 r 703
2009-11-16 12:12:29 C 08 43 37.95 +09 29 20.0 r 703
2009-11-16 12:21:27 C 08 43 38.64 +09 28 43.5 r 703
2009-11-16 12:26:15 C 08 43 38.93 +09 28 24.5 o H01
2009-11-16 12:30:25 C 08 43 39.25 +09 28 08.4 r 703
2009-11-16 12:32:18 C 08 43 39.38 +09 28 00.5 o H01
2009-11-16 12:39:11 C 08 43 39.90 +09 27 33.2 o H01
2009-11-16 12:44:39 C 08 43 40.31 +09 27 11.4 o H01
2009-11-17 10:20:24 C 08 45 24.54 +08 00 27.7 o H01
2009-11-17 10:25:42 C 08 45 24.93 +08 00 06.1 o H01
2009-11-17 10:32:55 C 08 45 25.48 +07 59 36.9 o H01
2009-11-17 10:37:59 C 08 45 25.84 +07 59 16.4 o H01
2009-11-17 10:45:02 C 08 45 26.37 +07 58 47.8 o H01
2009-11-17 11:45:16 C 08 45 30.93 +07 54 45.2 c 926
2009-11-17 11:47:30 C 08 45 31.09 +07 54 34.6 c 926
2009-11-17 11:49:43 C 08 45 31.25 +07 54 26.4 c 926
2009-11-17 13:13:33 C 08 45 37.54 +07 48 45.5 o 673
2009-11-17 13:23:33 C 08 45 38.26 +07 48 04.6 o 673
2009-11-17 13:34:39 C 08 45 39.13 +07 47 18.8 o 673
2009-11-19 10:12:13 C 08 49 08.94 +04 42 17.6 19.3 c 704
2009-11-19 10:30:01 C 08 49 10.22 +04 41 02.8 19.4 c 704
2009-11-19 10:47:55 C 08 49 11.47 +04 39 47.4 19.4 c 704
2009-11-19 11:23:51 C 08 49 14.10 +04 37 15.6 19.5 c 704
2009-11-20 11:22:15 C 08 51 03.42 +02 54 59.8 o H21
2009-11-20 11:23:34 C 08 51 03.50 +02 54 53.9 o H21
2009-11-20 11:28:22 C 08 51 03.78 +02 54 32.3 o H21
2009-11-21 08:38:28 C 08 52 40.26 +01 22 48.7 o H21
2009-11-21 08:41:51 C 08 52 40.50 +01 22 33.9 o H21
2009-11-21 08:44:41 C 08 52 40.70 +01 22 21.4 o H21
2009-11-21 11:37:48 C 08 52 53.25 +01 09 47.2 r 703
2009-11-21 11:48:22 C 08 52 53.94 +01 09 01.2 r 703
2009-11-21 11:58:48 C 08 52 54.69 +01 08 16.1 r 703
2009-11-21 12:09:08 C 08 52 55.34 +01 07 30.2 r 703
2009-11-29 09:08:21 C 09 06 14.52 -13 15 31.3 o H21
2009-11-29 09:12:28 C 09 06 14.79 -13 15 50.0 o H21
2009-11-29 09:16:50 C 09 06 15.00 -13 16 11.1 o H21
2009-11-29 17:39:23 C 09 06 48.38 -13 54 52.7 r E12
2009-11-29 17:43:36 C 09 06 48.62 -13 55 12.6 r E12
2009-11-30 10:45:50 C 09 07 55.63 -15 15 15.7 r H36
2009-11-30 10:49:27 C 09 07 55.94 -15 15 31.7 r H36