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
2001-01-14 21:15:48 C 04 28 05.52 -08 48 50.2 611
2001-01-17 13:09:52 C 04 43 42.61 -09 06 21.7 900
2001-01-17 13:23:04 C 04 43 45.56 -09 06 24.0 900
2001-01-19 20:41:53 C 04 57 11.18 -09 15 06.9 938
2001-02-02 03:59:48 C 06 08 50.12 -08 21 43.4 18.0 c 704
2001-02-02 04:22:20 C 06 08 54.37 -08 21 33.3 711
2001-02-02 04:23:58 C 06 08 54.87 -08 21 32.5 17.9 c 704
2001-02-02 04:29:48 C 06 08 55.82 -08 21 30.5 711
2001-02-02 04:36:49 C 06 08 57.10 -08 21 27.6 711
2001-02-02 04:45:21 C 06 08 58.89 -08 21 23.5 18.4 c 704
2001-02-02 05:07:11 C 06 09 03.20 -08 21 16.4 18.0 c 704
2001-02-02 05:28:46 C 06 09 07.45 -08 21 09.3 18.4 c 704
2001-02-11 21:42:06 C 06 52 31.31 -06 31 31.3 118
2001-02-11 21:44:26 C 06 52 31.68 -06 31 29.7 118
2010-10-05 20:16:37 C 01 17 17.44 +22 31 48.9 r J75
2010-10-05 20:38:02 C 01 17 16.91 +22 31 47.6 r J75
2010-10-05 20:59:26 C 01 17 16.41 +22 31 46.8 r J75
2010-10-08 07:28:41 C 01 15 53.89 +22 26 28.6 r 703
2010-10-08 07:40:15 C 01 15 53.53 +22 26 25.9 r 703
2010-10-08 07:51:51 C 01 15 53.35 +22 26 24.7 r 703
2010-10-08 08:03:26 C 01 15 52.88 +22 26 23.6 r 703
2010-10-13 05:42:54 C 01 12 39.49 +22 06 08.0 r 703
2010-10-13 05:51:55 C 01 12 39.24 +22 06 06.0 r 703
2010-10-13 06:00:57 C 01 12 38.77 +22 06 03.4 r 703
2010-10-13 06:10:01 C 01 12 38.44 +22 06 01.3 r 703
2010-10-15 06:44:40 C 01 11 08.52 +21 53 47.0 19.4 c 704
2010-10-15 07:04:21 C 01 11 07.79 +21 53 41.9 19.5 c 704
2010-10-15 07:24:03 C 01 11 07.06 +21 53 35.7 19.9 c 704
2010-10-15 07:43:48 C 01 11 06.23 +21 53 29.5 19.9 c 704
2010-10-15 08:03:37 C 01 11 05.59 +21 53 23.2 19.4 c 704
2010-10-28 04:38:08 C 01 00 41.65 +19 38 36.6 r 703
2010-10-28 04:57:58 C 01 00 40.89 +19 38 25.2 r 703
2010-10-28 05:07:56 C 01 00 40.46 +19 38 18.8 r 703
2010-11-02 20:30:29 C 00 56 30.58 +18 08 17.2 u A13
2010-11-02 21:08:49 C 00 56 29.29 +18 07 49.5 u A13
2010-11-04 20:42:58 C 00 55 14.40 +17 32 13.4 u 160
2010-11-04 20:46:58 C 00 55 14.27 +17 32 10.4 u 160
2010-11-04 20:51:00 C 00 55 14.16 +17 32 07.3 u 160
2010-11-05 02:01:06 C 00 55 07.51 +17 28 11.0 u H15
2010-11-05 02:39:46 C 00 55 06.37 +17 27 42.3 u H15
2010-11-05 03:18:20 C 00 55 05.19 +17 27 12.5 u H15
2010-11-05 03:59:49 C 00 55 03.92 +17 26 40.9 u H15
2010-11-05 20:05:00 C 00 54 41.05 +17 14 02.1 u 160
2010-11-05 20:08:57 C 00 54 40.94 +17 13 59.0 u 160
2010-11-05 20:12:54 C 00 54 40.81 +17 13 54.8 u 160
2010-11-06 05:54:39 C 00 54 27.00 +17 06 21.2 r 703
2010-11-06 06:07:02 C 00 54 26.67 +17 06 10.0 r 703
2010-11-06 06:19:31 C 00 54 26.31 +17 06 01.0 r 703
2010-11-06 06:31:54 C 00 54 25.95 +17 05 50.9 r 703
2010-11-10 04:59:08 C 00 52 42.49 +15 47 33.8 19.7 c 704