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
2010-11-10 05:17:20 C 00 52 42.15 +15 47 18.4 19.5 c 704
2010-11-10 05:35:32 C 00 52 41.84 +15 47 02.1 19.5 c 704
2010-11-14 06:56:51 C 00 51 49.46 +14 20 43.2 r 703
2010-11-14 07:07:28 C 00 51 49.35 +14 20 33.1 r 703
2010-11-14 07:18:22 C 00 51 49.28 +14 20 23.0 r 703
2010-11-24 20:10:04 C 00 55 06.82 +10 21 00.1 v 951
2010-11-24 20:37:40 C 00 55 07.54 +10 20 33.6 v 951
2010-11-24 21:07:02 C 00 55 08.28 +10 20 05.2 v 951
2010-11-27 05:15:56 C 00 57 05.79 +09 25 58.8 r 703
2010-11-27 05:25:50 C 00 57 06.12 +09 25 50.0 r 703
2010-11-27 05:35:47 C 00 57 06.44 +09 25 39.9 r 703
2010-11-29 18:28:27 C 00 59 49.54 +08 26 53.8 u A13
2010-11-29 18:52:12 C 00 59 50.55 +08 26 31.0 u A13
2010-12-09 03:01:02 C 01 15 08.20 +04 56 48.5 r 703
2010-12-09 03:11:43 C 01 15 09.07 +04 56 38.6 r 703
2010-12-09 03:22:32 C 01 15 09.93 +04 56 29.4 r 703
2010-12-09 04:53:40 C 01 15 17.10 +04 55 05.9 r 703
2010-12-09 05:07:24 C 01 15 18.21 +04 54 53.4 r 703
2010-12-09 05:21:19 C 01 15 19.33 +04 54 40.2 r 703
2010-12-09 05:35:07 C 01 15 20.44 +04 54 28.5 r 703
2010-12-10 03:03:46 C 01 17 18.14 +04 35 10.2 19.1 c 704
2010-12-10 03:22:39 C 01 17 19.68 +04 34 52.9 19.3 c 704
2010-12-10 03:42:26 C 01 17 21.29 +04 34 34.6 19.4 c 704
2010-12-10 04:01:33 C 01 17 22.94 +04 34 18.3 19.0 c 704
2010-12-10 04:20:31 C 01 17 24.56 +04 34 01.0 19.2 c 704
2010-12-11 02:54:10 C 01 19 33.48 +04 13 57.0 18.2 c 704
2010-12-11 03:12:47 C 01 19 35.09 +04 13 40.3 18.7 c 704
2010-12-11 03:31:26 C 01 19 36.71 +04 13 23.6 18.5 c 704
2010-12-11 03:50:06 C 01 19 38.37 +04 13 07.1 18.5 c 704
2010-12-11 04:08:46 C 01 19 40.03 +04 12 50.7 18.3 c 704
2011-01-07 03:42:45 C 03 00 23.03 -03 24 55.7 18.5 c 704
2011-01-07 04:03:18 C 03 00 27.13 -03 25 05.9 18.7 c 704
2011-01-07 04:23:32 C 03 00 31.16 -03 25 14.3 18.8 c 704
2011-01-08 03:18:57 C 03 05 22.25 -03 35 17.1 18.3 c 704
2011-01-08 03:38:00 C 03 05 26.09 -03 35 25.4 18.4 c 704
2011-01-08 03:57:18 C 03 05 30.03 -03 35 33.2 18.7 c 704
2011-01-08 04:16:25 C 03 05 33.86 -03 35 41.5 18.6 c 704
2011-01-08 04:35:46 C 03 05 37.78 -03 35 49.4 18.6 c 704
2011-01-13 02:37:01 C 03 31 33.45 -04 17 57.1 r 703
2011-01-13 02:44:30 C 03 31 35.11 -04 17 59.1 r 703
2011-01-13 02:51:51 C 03 31 36.66 -04 18 01.4 r 703
2011-01-13 02:59:22 C 03 31 38.24 -04 18 03.7 r 703
2011-02-05 20:25:59 C 05 41 20.13 -03 51 24.1 o 493
2011-02-05 20:28:17 C 05 41 20.59 -03 51 23.3 o 493
2011-02-05 20:35:42 C 05 41 22.10 -03 51 21.0 o 493
2011-02-05 20:37:24 C 05 41 22.44 -03 51 20.4 o 493
2011-02-05 21:39:10 C 05 41 35.01 -03 50 59.8 o 493
2011-02-05 21:41:03 C 05 41 35.39 -03 50 59.2 o 493
2011-02-06 18:46:29 C 05 46 02.30 -03 44 00.1 u 240
2011-02-06 18:47:37 C 05 46 02.54 -03 43 59.7 u 240