4688 (1980 WF)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5178619886 ± 4.28e-02
Semi-major axis (a)2.2330665867 AU ± 3.10e-02
Inclination (i)6.37494837° ± 1.57e+00
Long. of Asc. Node (Ω)241.22626370° ± 6.84e+00
Arg. of Perihelion (ω)213.83190802° ± 7.91e+00
Mean Anomaly (M)163.45964872° ± 1.49e+01
Mean Motion (n)0.2953654999°/day ± 6.15e-03
Perihelion dist (q)1.07664628 AU ± 9.67e-02
Aphelion dist (Q)3.38948689 AU ± 1.07e-01
Orbital Period3.33697160 yr ± 6.95e-02
NGA Modelr2
A2-2.87149907e-06 AU/d²
Physical Parameters
H (abs. magnitude)19.60
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.445″
Uncertainty0
Orbit TypeAmor
MOID0.107829 AU
Observations Used317
Oppositions29
Arc Total1980-2021
First Observation Used1980-11-29
Last Observation Used2021-04-07
Observations (339)
Date Type RA Dec Mag Band Observatory
2000-11-20 05:10:56 C 01 15 16.91 +14 00 17.6 17.5 c 704
2000-11-20 05:32:21 C 01 15 17.11 +13 59 53.7 17.9 c 704
2000-11-20 05:53:46 C 01 15 17.37 +13 59 31.0 18.0 c 704
2000-11-20 06:15:09 C 01 15 17.61 +13 59 07.1 17.8 c 704
2000-11-20 06:36:33 C 01 15 17.84 +13 58 43.9 17.8 c 704
2000-11-28 19:52:05 C 01 22 38.20 +10 06 00.2 610
2000-11-28 19:57:05 C 01 22 38.42 +10 05 54.3 610
2000-11-28 20:02:04 C 01 22 38.63 +10 05 48.5 610
2000-11-28 20:07:04 C 01 22 38.85 +10 05 42.6 610
2000-11-28 20:12:04 C 01 22 39.06 +10 05 36.7 610
2000-11-29 04:10:32 C 01 23 04.62 +09 56 21.4 z 711
2000-11-29 04:18:30 C 01 23 04.97 +09 56 12.0 z 711
2000-11-29 04:26:25 C 01 23 05.31 +09 56 02.6 z 711
2000-11-30 21:21:50 C 01 25 28.53 +09 07 21.5 16.9 c 185
2000-11-30 21:30:18 C 01 25 28.97 +09 07 12.1 c 185
2000-11-30 21:59:18 C 01 25 30.63 +09 06 36.4 c 185
2000-11-30 22:10:05 C 01 25 31.14 +09 06 23.3 c 185
2000-12-01 18:45:59 C 01 26 52.13 +08 41 51.0 610
2000-12-01 18:51:00 C 01 26 52.41 +08 41 45.0 610
2000-12-01 18:56:00 C 01 26 52.68 +08 41 39.0 610
2000-12-01 19:00:59 C 01 26 52.96 +08 41 33.0 610
2000-12-01 19:05:59 C 01 26 53.24 +08 41 27.0 610
2000-12-03 01:18:00 C 01 28 59.40 +08 05 16.7 i 739
2000-12-03 01:25:03 C 01 28 59.73 +08 05 08.7 i 739
2000-12-03 01:35:36 C 01 29 00.36 +08 04 56.7 i 739
2000-12-15 01:03:10 C 01 58 11.32 +02 17 23.5 808
2000-12-15 01:55:10 C 01 58 17.44 +02 16 20.3 808
2000-12-16 19:00:01 C 02 03 54.92 +01 26 01.9 610
2000-12-16 19:05:00 C 02 03 55.56 +01 25 55.9 610
2000-12-16 19:10:00 C 02 03 56.21 +01 25 49.9 610
2000-12-16 19:15:00 C 02 03 56.85 +01 25 44.0 610
2000-12-16 19:20:01 C 02 03 57.50 +01 25 38.0 610
2000-12-17 18:57:00 C 02 07 21.36 +00 57 26.6 610
2000-12-17 19:02:01 C 02 07 22.03 +00 57 20.6 610
2000-12-17 19:07:01 C 02 07 22.71 +00 57 14.6 610
2000-12-17 19:12:00 C 02 07 23.38 +00 57 08.7 610
2000-12-17 19:17:00 C 02 07 24.06 +00 57 02.7 610
2000-12-19 03:29:13 C 02 12 13.46 +00 19 01.1 c 699
2000-12-19 04:03:03 C 02 12 18.23 +00 18 21.3 c 699
2000-12-19 04:36:41 C 02 12 23.02 +00 17 41.6 c 699
2000-12-19 05:10:40 C 02 12 27.85 +00 17 01.6 c 699
2000-12-23 03:30:36 C 02 27 56.76 -01 31 52.2 17.1 c 704
2000-12-23 03:54:24 C 02 28 00.61 -01 32 19.0 17.2 c 704
2000-12-23 04:17:37 C 02 28 04.40 -01 32 45.2 17.3 c 704
2000-12-23 04:40:28 C 02 28 08.11 -01 33 10.8 17.5 c 704
2000-12-23 05:02:19 C 02 28 11.70 -01 33 35.4 17.8 c 704
2000-12-23 19:19:18 C 02 30 43.98 -01 49 46.2 947
2000-12-30 20:46:37 C 03 03 45.92 -04 46 32.6 947
2000-12-30 20:48:35 C 03 03 46.33 -04 46 34.2 947
2001-01-14 21:11:45 C 04 28 04.45 -08 48 49.8 611