IAA RAS IAA Minor Planet Database

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
2020-12-08 12:07:35 C 07 57 16.46 +28 20 02.3 – V T05
2020-12-08 12:11:50 C 07 57 16.63 +28 20 06.7 – V T05
2020-12-08 12:16:28 C 07 57 16.85 +28 20 11.1 – V T05
2020-12-09 10:57:26 C 07 58 23.208 +28 41 56.95 – U F52
2020-12-09 11:14:06 C 07 58 23.962 +28 42 13.39 – U F52
2020-12-09 11:30:46 C 07 58 24.709 +28 42 29.84 – U F52
2020-12-12 13:13:36 C 08 01 57.79 +29 58 38.2 – V T05
2020-12-12 13:47:37 C 08 01 59.28 +29 59 15.3 – V T05
2020-12-12 13:55:00 C 08 01 59.64 +29 59 23.4 – V T05
2020-12-12 13:59:45 C 08 01 59.84 +29 59 28.2 – V T05
2020-12-13 08:01:14 C 08 02 52.55 +30 19 20.8 – U I41
2020-12-13 09:16:07 C 08 02 55.85 +30 20 46.0 – V 703
2020-12-13 09:21:38 C 08 02 56.15 +30 20 51.7 – U I41
2020-12-13 09:24:06 C 08 02 56.21 +30 20 55.2 – V 703
2020-12-13 09:32:06 C 08 02 56.50 +30 21 03.6 – V 703
2020-12-13 09:40:09 C 08 02 56.90 +30 21 12.4 – V 703
2020-12-13 10:53:55 C 08 03 00.24 +30 22 35.5 – U I41
2020-12-13 11:41:05 C 08 03 02.33 +30 23 28.4 – U I41
2020-12-14 11:04:35 C 08 04 10.41 +30 50 18.7 – V T08
2020-12-14 11:07:54 C 08 04 10.54 +30 50 22.7 – V T08
2020-12-14 11:15:15 C 08 04 10.89 +30 50 31.5 – V T08
2020-12-14 11:51:35 C 08 04 12.48 +30 51 14.2 – V T08
2020-12-16 07:25:46 C 08 06 18.19 +31 43 36.7 – U I41
2020-12-16 08:11:35 C 08 06 20.23 +31 44 34.3 – U I41
2020-12-16 08:34:17 C 08 06 21.25 +31 45 02.8 – U I41
2020-12-16 08:35:38 C 08 06 21.31 +31 45 04.6 – U I41
2020-12-16 09:46:23 C 08 06 24.43 +31 46 33.0 – U I41
2020-12-16 11:16:23 C 08 06 28.38 +31 48 25.0 – U I41
2020-12-16 12:43:54 C 08 06 32.26 +31 50 13.4 – U I41
2020-12-17 06:41:08 C 08 07 25.10 +32 12 55.5 – V 703
2020-12-17 06:56:50 C 08 07 25.91 +32 13 18.2 – V 703
2020-12-17 07:04:40 C 08 07 26.18 +32 13 28.7 – V 703
2020-12-17 08:29:11 C 08 07 30.10 +32 15 17.8 – U I41
2020-12-17 08:35:30 C 08 07 30.39 +32 15 26.2 – U I41
2020-12-17 08:38:59 C 08 07 30.44 +32 15 30.6 – V G96
2020-12-17 08:46:03 C 08 07 30.85 +32 15 39.8 – U I41
2020-12-17 08:46:40 C 08 07 30.75 +32 15 40.2 – V G96
2020-12-17 08:54:24 C 08 07 31.12 +32 15 50.7 – V G96
2020-12-17 09:02:08 C 08 07 31.45 +32 16 00.5 – V G96
2020-12-17 10:12:14 C 08 07 34.64 +32 17 31.2 – U I41
2020-12-20 06:25:35 C 08 10 52.60 +33 49 45.9 – V 703
2020-12-20 06:33:17 C 08 10 52.94 +33 49 56.7 – V 703
2020-12-20 06:40:59 C 08 10 53.35 +33 50 07.9 – V 703
2020-12-20 06:48:42 C 08 10 53.68 +33 50 19.8 – V 703
2020-12-20 09:12:04 C 08 11 00.15 +33 53 44.6 – U I41
2020-12-20 09:13:26 C 08 11 00.22 +33 53 46.5 – U I41
2020-12-20 10:50:26 C 08 11 04.49 +33 56 04.6 – U I41
2020-12-20 10:51:48 C 08 11 04.55 +33 56 06.5 – U I41
2020-12-22 11:27:04 C 08 13 27.15 +35 07 45.8 – V T08
2020-12-22 11:33:03 C 08 13 27.39 +35 07 55.0 – V T08