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
2013-01-08 03:23:46 C 23 39 57.76 +12 30 21.6 o 695
2013-01-08 03:26:28 C 23 39 58.07 +12 30 20.4 o 695
2013-01-08 03:29:12 C 23 39 58.43 +12 30 19.4 o 695
2013-03-07 02:39:12 C 02 50 59.95 +04 26 16.3 o 291
2013-03-07 02:43:27 C 02 51 00.47 +04 26 15.0 o 291
2013-03-07 02:47:43 C 02 51 01.09 +04 26 13.2 o 291
2015-05-26 09:10:30 C 18 39 41.80 -09 39 58.7 q 448
2015-05-26 09:32:59 C 18 39 40.01 -09 39 20.5 q 448
2015-06-07 10:52:48 C 18 13 56.37 -01 24 37.3 o 691
2015-06-07 10:57:59 C 18 13 55.96 -01 24 30.2 o 691
2015-06-11 08:05:47 C 18 04 52.42 +01 03 16.9 R G45
2015-06-11 08:12:32 C 18 04 51.73 +01 03 27.5 R G45
2015-06-11 08:29:36 C 18 04 49.97 +01 03 53.7 R G45
2015-06-11 08:36:01 C 18 04 49.38 +01 04 03.5 R G45
2015-06-11 08:42:54 C 18 04 48.66 +01 04 14.3 R G45
2015-06-11 09:17:35 C 18 04 45.15 +01 05 07.0 R G45
2017-10-08 10:03:09 C 00 25 23.807 +73 14 50.00 L F51
2017-10-08 10:44:23 C 00 25 19.336 +73 14 42.80 L F51
2017-10-08 11:04:59 C 00 25 17.105 +73 14 39.24 L F51
2017-11-16 23:24:25 C 23 57 47.15 +51 34 39.1 U W34
2017-11-16 23:38:16 C 23 57 47.87 +51 33 59.6 U W34
2017-11-16 23:52:03 C 23 57 48.55 +51 33 20.3 U W34
2017-11-17 00:02:06 C 23 57 49.01 +51 32 51.2 U W34
2017-11-19 08:57:44 C 00 01 12.78 +48 42 46.7 U T05
2017-11-19 09:17:50 C 00 01 13.94 +48 41 43.6 U T05
2017-11-19 09:27:02 C 00 01 14.43 +48 41 14.6 U T05
2017-11-19 09:29:39 C 00 01 14.64 +48 41 06.4 U T05
2017-11-19 09:40:39 C 00 01 15.31 +48 40 31.8 U T05
2017-11-19 09:42:37 C 00 01 15.26 +48 40 26.0 U T05
2017-11-20 12:29:35 C 00 03 02.02 +47 16 27.3 q D29
2017-11-20 12:49:57 C 00 03 03.24 +47 15 22.5 q D29
2017-11-20 13:10:19 C 00 03 04.44 +47 14 17.4 q D29
2017-11-20 20:15:16 C 00 03 33.22 +46 51 35.3 U 130
2017-11-20 20:20:43 C 00 03 33.59 +46 51 17.4 U 130
2017-11-21 05:09:16 C 00 04 09.20 +46 22 58.7 U 703
2017-11-21 05:17:51 C 00 04 09.80 +46 22 31.4 U 703
2017-11-21 05:26:23 C 00 04 10.28 +46 22 03.8 U 703
2017-11-21 05:34:54 C 00 04 10.85 +46 21 36.0 U 703
2017-11-25 05:10:14 C 00 11 13.75 +40 58 27.7 U 703
2017-11-25 05:20:17 C 00 11 14.47 +40 57 51.6 U 703
2017-11-25 05:30:17 C 00 11 15.19 +40 57 16.7 U 703
2017-11-27 19:16:38 C 00 16 15.30 +37 15 37.7 q 160
2017-11-27 19:19:37 C 00 16 15.55 +37 15 26.7 q 160
2017-11-27 19:22:36 C 00 16 15.78 +37 15 16.2 q 160
2017-12-03 20:48:47 C 00 29 00.71 +28 09 19.1 q 160
2017-12-03 20:51:49 C 00 29 00.97 +28 09 07.6 q 160
2017-12-03 20:54:49 C 00 29 01.22 +28 08 55.6 q 160
2017-12-05 20:16:39 C 00 33 24.87 +25 08 29.2 q 160
2017-12-05 20:19:39 C 00 33 25.14 +25 08 17.4 q 160
2017-12-05 20:22:40 C 00 33 25.38 +25 08 06.0 q 160