438902 (2009 WF104)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6559375610 ± 4.02e-09
Semi-major axis (a)3.0832681608 AU ± 1.15e-08
Inclination (i)16.97015887° ± 1.55e-06
Long. of Asc. Node (Ω)81.62914600° ± 3.51e-06
Arg. of Perihelion (ω)94.39943826° ± 5.26e-06
Mean Anomaly (M)312.39262011° ± 1.74e-06
Mean Motion (n)0.1820519474°/day ± 1.02e-09
Perihelion dist (q)1.06083676 AU ± 1.30e-08
Aphelion dist (Q)5.10569956 AU ± 2.28e-08
Orbital Period5.41398374 yr ± 3.04e-08
Physical Parameters
H (abs. magnitude)17.50
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.214″
Uncertainty0
Orbit TypeAmor
MOID0.278830 AU
Observations Used877
Oppositions14
Arc Total2009-2026
First Observation Used2009-11-23
Last Observation Used2026-01-10
Observations (938)
Date Type RA Dec Mag Band Observatory
2021-02-04 03:24:24 C 10 48 37.91 +75 33 14.4 V W33
2021-02-04 03:35:25 C 10 48 43.94 +75 33 36.4 V W33
2021-02-05 13:02:21 C 11 08 52.61 +76 34 13.5 V T08
2021-02-05 13:06:22 C 11 08 55.08 +76 34 20.4 V T08
2021-02-05 13:16:59 C 11 09 01.59 +76 34 37.8 V T08
2021-02-05 13:31:42 C 11 09 10.68 +76 35 02.3 V T08
2021-02-05 13:33:41 C 11 09 11.88 +76 35 05.7 V T08
2021-02-07 12:49:12 C 11 42 43.35 +77 45 40.1 V T05
2021-02-07 12:53:50 C 11 42 46.76 +77 45 46.2 V T05
2021-02-07 13:08:22 C 11 42 57.40 +77 46 04.7 V T05
2021-02-07 13:16:17 C 11 43 03.21 +77 46 14.9 V T05
2021-02-09 12:20:37 C 12 21 48.15 +78 35 45.3 V T08
2021-02-09 12:23:16 C 12 21 50.35 +78 35 47.7 V T08
2021-02-09 12:31:15 C 12 21 57.01 +78 35 54.2 V T08
2021-02-09 12:59:41 C 12 22 20.67 +78 36 17.8 V T08
2021-02-09 13:31:05 C 12 22 46.84 +78 36 42.8 V T08
2021-02-09 13:36:24 C 12 22 51.16 +78 36 47.2 V T08
2021-02-09 13:45:42 C 12 22 59.01 +78 36 54.6 V T08
2021-02-11 12:09:11 C 13 04 52.29 +79 01 38.0 V T05
2021-02-11 12:15:50 C 13 04 58.23 +79 01 40.2 V T05
2021-02-11 12:23:46 C 13 05 05.22 +79 01 42.7 V T05
2021-02-11 12:35:38 C 13 05 15.72 +79 01 46.5 V T05
2021-02-13 01:22:25 C 13 39 03.22 +79 03 38.2 V C18
2021-02-13 03:28:15 C 13 40 54.28 +79 03 23.5 V C18
2021-02-13 12:59:26 C 13 49 33.09 +79 01 24.1 V T08
2021-02-13 13:04:51 C 13 49 37.69 +79 01 22.9 V T08
2021-02-13 13:08:51 C 13 49 41.05 +79 01 22.0 V T08
2021-02-17 12:28:48 C 15 06 32.62 +77 51 25.5 V T08
2021-02-17 12:34:46 C 15 06 36.64 +77 51 19.2 V T08
2021-02-17 12:43:25 C 15 06 42.45 +77 51 10.1 V T08
2021-02-17 13:00:02 C 15 06 53.49 +77 50 52.7 V T08
2021-02-17 21:47:48 C 15 12 53.49 +77 40 15.5 V L74
2021-02-17 21:57:28 C 15 13 00.00 +77 40 05.2 V L74
2021-02-17 22:07:25 C 15 13 06.71 +77 39 54.2 V L74
2021-02-20 18:31:59 C 15 52 51.11 +76 05 57.6 q Q21
2021-02-20 18:39:34 C 15 52 54.54 +76 05 45.8 q Q21
2021-02-20 18:47:07 C 15 52 58.22 +76 05 34.8 q Q21
2021-02-20 18:54:39 C 15 53 01.94 +76 05 22.9 q Q21
2021-02-23 23:09:48 C 16 25 17.80 +73 58 11.2 V L74
2021-02-23 23:21:49 C 16 25 22.12 +73 57 51.0 V L74
2021-02-23 23:34:08 C 16 25 26.41 +73 57 30.3 V L74
2021-02-23 23:45:07 C 16 25 29.54 +73 57 08.9 V A17
2021-02-24 00:02:10 C 16 25 35.57 +73 56 40.0 V A17
2021-02-24 00:19:13 C 16 25 41.54 +73 56 11.4 V A17
2021-02-25 11:18:02 C 16 37 06.54 +72 53 19.5 V T08
2021-02-25 11:26:02 C 16 37 09.03 +72 53 05.7 V T08
2021-02-25 11:30:09 C 16 37 10.40 +72 52 58.3 V T08
2021-02-25 11:44:55 C 16 37 14.52 +72 52 33.5 V T08
2021-02-25 12:59:51 C 16 37 36.10 +72 50 23.6 V T08
2021-02-25 13:05:12 C 16 37 37.63 +72 50 14.3 V T08