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
2011-02-06 18:54:03 C 05 46 03.89 -03 43 57.9 u 240
2011-02-06 18:57:08 C 05 46 04.47 -03 43 57.0 u 240
2011-02-06 19:01:04 C 05 46 05.29 -03 43 55.8 u 240
2011-02-06 19:03:52 C 05 46 05.87 -03 43 55.2 u 240
2011-03-02 19:16:18 C 07 27 40.90 +00 08 55.5 u 240
2011-03-02 19:21:03 C 07 27 41.57 +00 08 57.5 u 240
2011-03-02 19:25:17 C 07 27 42.18 +00 08 59.4 u 240
2011-03-02 19:28:25 C 07 27 42.63 +00 09 00.7 u 240
2011-03-02 19:36:15 C 07 27 43.74 +00 09 03.8 u 240
2011-05-01 05:37:14 C 09 59 41.19 +03 02 06.1 t 568
2011-05-01 05:58:37 C 09 59 42.94 +03 02 03.5 t 568
2011-05-01 07:09:19 C 09 59 48.73 +03 01 55.2 t 568
2011-05-01 07:13:33 C 09 59 49.10 +03 01 54.5 t 568
2011-05-01 07:40:47 C 09 59 51.33 +03 01 51.3 t 568
2011-05-01 08:45:55 C 09 59 56.73 +03 01 43.3 t 568
2020-08-15 09:17:54 C 00 35 40.82 +15 13 56.9 u H21
2020-08-15 09:27:25 C 00 35 40.97 +15 14 00.3 u H21
2020-08-15 09:33:17 C 00 35 41.02 +15 14 02.0 u H21
2020-08-18 10:37:57 C 00 36 42.287 +15 36 19.17 U F51
2020-08-18 10:55:37 C 00 36 42.465 +15 36 24.31 U F51
2020-08-18 11:13:18 C 00 36 42.640 +15 36 29.73 U F51
2020-08-18 11:30:59 C 00 36 42.830 +15 36 35.11 U F51
2020-09-14 07:10:11 C 00 33 02.11 +17 33 47.3 V G96
2020-09-14 07:17:34 C 00 33 01.90 +17 33 48.0 V G96
2020-09-14 07:24:57 C 00 33 01.67 +17 33 47.6 V G96
2020-09-14 07:32:20 C 00 33 01.51 +17 33 47.9 V G96
2020-09-17 08:48:21 C 00 30 57.407 +17 34 02.79 U F51
2020-09-17 09:06:49 C 00 30 56.793 +17 34 02.60 U F51
2020-09-17 09:25:09 C 00 30 56.165 +17 34 02.24 U F51
2020-09-17 09:43:31 C 00 30 55.538 +17 34 01.99 U F51
2020-09-18 12:35:18 C 00 30 03.966 +17 33 10.78 U F51
2020-09-18 13:03:50 C 00 30 02.953 +17 33 09.46 U F51
2020-09-18 13:33:26 C 00 30 01.899 +17 33 07.80 U F51
2020-09-18 14:01:33 C 00 30 00.907 +17 33 06.36 U F51
2020-09-20 12:00:33 C 00 28 27.416 +17 30 25.29 U F51
2020-09-20 12:38:42 C 00 28 25.931 +17 30 22.17 U F51
2020-09-27 04:11:53 C 00 22 03.55 +17 08 28.2 V G96
2020-09-27 04:19:20 C 00 22 03.26 +17 08 26.2 V G96
2020-09-27 04:26:47 C 00 22 02.87 +17 08 25.2 V G96
2020-09-27 04:34:15 C 00 22 02.53 +17 08 23.6 V G96
2020-10-07 06:52:21 C 00 10 08.68 +15 55 30.3 V G96
2020-10-07 06:59:45 C 00 10 08.27 +15 55 27.3 V G96
2020-10-07 07:07:09 C 00 10 07.84 +15 55 24.2 V G96
2020-10-07 07:14:33 C 00 10 07.42 +15 55 21.4 V G96
2020-10-09 10:50:32 C 00 07 23.78 +15 33 33.6 V T05
2020-10-09 10:55:49 C 00 07 23.43 +15 33 30.6 V T05
2020-10-09 11:03:14 C 00 07 22.94 +15 33 28.1 V T05
2020-10-09 11:37:49 C 00 07 21.03 +15 33 11.5 V T05
2020-10-15 04:32:47 C 00 00 07.90 +14 25 03.0 V G96
2020-10-15 04:41:42 C 00 00 07.41 +14 24 58.3 V G96