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
2021-01-18 17:09:14 C 08 59 09.02 +58 59 06.1 q C97
2021-01-18 17:11:26 C 08 59 09.28 +58 59 12.5 q C97
2021-01-19 08:07:53 C 09 01 00.65 +59 39 50.8 U I41
2021-01-19 08:09:14 C 09 01 00.82 +59 39 54.6 U I41
2021-01-19 17:30:27 C 09 02 16.47 +60 05 15.8 17.2 q C97
2021-01-19 17:31:39 C 09 02 16.60 +60 05 19.3 17.2 q C97
2021-01-19 17:32:52 C 09 02 16.79 +60 05 22.6 17.0 q C97
2021-01-19 17:34:04 C 09 02 16.92 +60 05 26.3 17.1 q C97
2021-01-19 17:35:16 C 09 02 17.06 +60 05 29.5 17.1 q C97
2021-01-19 17:36:29 C 09 02 17.21 +60 05 32.7 17.1 q C97
2021-01-21 05:15:15 C 09 07 17.40 +61 42 38.6 V V93
2021-01-21 05:46:26 C 09 07 21.77 +61 44 04.4 V V93
2021-01-21 07:36:47 C 09 07 37.02 +61 49 06.3 V V93
2021-01-23 04:26:02 C 09 14 55.39 +63 51 00.9 V V93
2021-01-23 05:05:21 C 09 15 01.87 +63 52 49.4 V V93
2021-01-23 05:09:11 C 09 15 02.11 +63 53 03.4 V W33
2021-01-23 05:19:37 C 09 15 03.84 +63 53 32.0 V W33
2021-01-23 05:30:03 C 09 15 05.49 +63 54 00.4 V W33
2021-01-23 05:41:19 C 09 15 07.74 +63 54 28.2 V V93
2021-01-23 20:53:38 C 09 17 53.58 +64 35 28.3 V Z80
2021-01-23 20:57:48 C 09 17 54.34 +64 35 39.9 V Z80
2021-01-23 21:01:42 C 09 17 55.05 +64 35 50.6 V Z80
2021-01-24 10:07:20 C 09 20 23.52 +65 11 30.2 V T08
2021-01-24 10:15:23 C 09 20 25.00 +65 11 52.1 V T08
2021-01-24 10:24:40 C 09 20 26.65 +65 12 17.5 V T08
2021-01-26 21:54:42 C 09 33 27.16 +67 50 27.5 V 595
2021-01-26 21:58:01 C 09 33 27.96 +67 50 36.4 V 595
2021-01-26 22:01:21 C 09 33 28.73 +67 50 45.3 V 595
2021-01-26 22:04:40 C 09 33 29.50 +67 50 54.0 V 595
2021-01-28 11:31:28 C 09 43 20.72 +69 28 00.4 V T08
2021-01-28 12:16:09 C 09 43 32.55 +69 29 54.0 V T08
2021-01-28 12:18:49 C 09 43 33.26 +69 30 00.4 V T08
2021-01-28 12:56:30 C 09 43 43.24 +69 31 35.2 V T08
2021-01-28 12:59:09 C 09 43 44.01 +69 31 42.2 V T08
2021-01-28 13:32:21 C 09 43 52.81 +69 33 04.8 V T08
2021-01-28 13:35:00 C 09 43 53.60 +69 33 11.3 V T08
2021-01-29 11:36:50 C 09 50 33.117 +70 28 44.68 U F52
2021-01-29 11:59:07 C 09 50 39.637 +70 29 40.05 U F52
2021-01-29 12:10:17 C 09 50 42.900 +70 30 07.76 U F52
2021-01-30 12:11:10 C 09 58 40.94 +71 29 07.2 V T05
2021-01-30 12:15:47 C 09 58 42.46 +71 29 18.5 V T05
2021-01-30 12:25:00 C 09 58 45.49 +71 29 40.1 V T05
2021-01-30 13:14:19 C 09 59 01.62 +71 31 38.6 V T05
2021-02-01 11:11:09 C 10 16 53.59 +73 19 03.9 V T08
2021-02-01 11:15:08 C 10 16 55.22 +73 19 13.0 V T08
2021-02-01 11:19:09 C 10 16 56.81 +73 19 22.0 V T08
2021-02-03 06:59:38 C 10 37 34.48 +74 52 58.0 q U71
2021-02-03 07:18:17 C 10 37 43.86 +74 53 37.0 q U71
2021-02-03 07:34:10 C 10 37 51.74 +74 54 10.3 q U71
2021-02-04 03:13:25 C 10 48 31.89 +75 32 52.4 V W33