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
2020-10-15 04:50:35 C 00 00 06.92 +14 24 53.4 V G96
2020-10-15 04:59:30 C 00 00 06.41 +14 24 48.9 V G96
2020-10-19 08:36:09 C 23 55 04.69 +13 27 16.8 V T08
2020-10-19 08:44:11 C 23 55 04.24 +13 27 11.4 V T08
2020-10-19 08:55:13 C 23 55 03.68 +13 27 04.9 V T08
2020-10-19 09:01:42 C 23 55 03.32 +13 27 02.1 V T08
2020-10-24 05:12:49 C 23 49 46.48 +12 13 22.2 V 703
2020-10-24 05:21:02 C 23 49 46.09 +12 13 16.8 V 703
2020-10-24 05:29:15 C 23 49 45.66 +12 13 10.8 V 703
2020-10-24 05:37:28 C 23 49 45.32 +12 13 04.4 V 703
2020-11-04 05:08:11 C 23 41 31.712 +09 14 18.03 U F52
2020-11-04 05:24:43 C 23 41 31.316 +09 14 06.90 U F52
2020-11-04 05:41:15 C 23 41 30.937 +09 13 55.50 U F52
2020-11-04 05:57:52 C 23 41 30.528 +09 13 44.46 U F52
2020-11-05 01:26:54 C 23 41 09.92 +09 00 24.2 V G96
2020-11-05 01:34:53 C 23 41 09.76 +09 00 18.9 V G96
2020-11-05 01:42:51 C 23 41 09.59 +09 00 13.6 V G96
2020-11-05 01:50:50 C 23 41 09.42 +09 00 08.1 V G96
2020-11-08 18:01:16 C 23 40 05.41 +08 00 52.8 V 130
2020-11-08 18:12:43 C 23 40 05.24 +08 00 45.4 V 130
2020-11-13 03:15:03 C 23 39 58.37 +06 53 05.5 V 703
2020-11-13 03:23:18 C 23 39 58.30 +06 53 00.1 V 703
2020-11-13 03:39:46 C 23 39 58.23 +06 52 51.1 V 703
2020-11-14 05:17:45 C 23 40 09.111 +06 36 59.11 U F52
2020-11-14 05:36:23 C 23 40 09.158 +06 36 47.63 U F52
2020-11-14 05:55:07 C 23 40 09.215 +06 36 36.11 U F52
2020-11-16 04:23:11 C 23 40 40.05 +06 08 25.5 V G96
2020-11-16 04:31:58 C 23 40 40.12 +06 08 20.1 V G96
2020-11-16 04:39:26 C 23 40 40.20 +06 08 15.5 V G96
2020-11-16 04:48:10 C 23 40 40.28 +06 08 10.5 V G96
2020-11-20 07:44:23 C 23 42 40.69 +05 11 52.3 V T05
2020-11-20 07:55:38 C 23 42 40.88 +05 11 46.5 V T05
2020-11-20 08:20:59 C 23 42 41.49 +05 11 33.0 V T05
2020-11-20 08:24:56 C 23 42 41.57 +05 11 30.0 V T05
2020-12-05 06:09:40 C 00 00 05.593 +02 33 27.03 U F52
2020-12-05 06:23:47 C 00 00 06.495 +02 33 22.29 U F52
2020-12-05 06:37:51 C 00 00 07.412 +02 33 17.51 U F52
2020-12-05 06:51:53 C 00 00 08.320 +02 33 12.70 U F52
2020-12-06 03:33:29 C 00 01 37.46 +02 26 17.2 V G96
2020-12-06 03:40:51 C 00 01 37.95 +02 26 14.6 V G96
2020-12-06 03:48:13 C 00 01 38.43 +02 26 12.4 V G96
2020-12-06 03:55:36 C 00 01 38.96 +02 26 09.9 V G96
2020-12-06 04:52:42 C 00 01 43.786 +02 25 55.48 U F52
2020-12-06 05:10:13 C 00 01 44.961 +02 25 49.78 U F52
2020-12-06 05:27:48 C 00 01 46.153 +02 25 44.12 U F52
2020-12-12 04:59:34 C 00 13 30.364 +01 45 09.13 U F51
2020-12-12 05:17:03 C 00 13 31.838 +01 45 04.90 U F51
2020-12-12 05:34:31 C 00 13 33.316 +01 45 00.68 U F51
2020-12-12 05:51:57 C 00 13 34.786 +01 44 56.50 U F51
2021-01-02 05:24:58 C 01 14 13.273 +00 52 33.64 U F51