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
2021-01-02 05:41:53 C 01 14 15.709 +00 52 34.02 U F51
2021-01-02 05:58:53 C 01 14 18.144 +00 52 34.38 U F51
2021-01-02 06:16:02 C 01 14 20.615 +00 52 34.78 U F51
2021-01-04 05:21:29 C 01 21 32.629 +00 54 09.11 U F51
2021-01-04 05:37:33 C 01 21 35.013 +00 54 09.81 U F51
2021-01-04 05:53:35 C 01 21 37.421 +00 54 10.50 U F51
2021-01-04 06:09:39 C 01 21 39.827 +00 54 11.21 U F51
2021-01-05 02:59:03 C 01 24 55.98 +00 55 08.2 U I41
2021-01-05 03:00:25 C 01 24 56.18 +00 55 08.3 U I41
2021-01-05 04:08:50 C 01 25 06.63 +00 55 12.0 U I41
2021-01-05 04:21:50 C 01 25 08.64 +00 55 12.7 U I41
2021-01-05 04:23:12 C 01 25 08.82 +00 55 12.7 U I41
2021-01-05 04:39:06 C 01 25 11.28 +00 55 13.6 U I41
2021-01-07 05:27:50 C 01 33 03.447 +00 58 31.61 U F52
2021-01-07 05:43:31 C 01 33 05.908 +00 58 32.86 U F52
2021-01-07 05:59:10 C 01 33 08.365 +00 58 34.06 U F52
2021-01-07 06:14:48 C 01 33 10.839 +00 58 35.20 U F52
2021-01-12 02:42:39 C 01 53 03.36 +01 10 34.9 V G96
2021-01-12 02:50:48 C 01 53 04.77 +01 10 35.7 V G96
2021-01-12 02:58:57 C 01 53 06.17 +01 10 36.7 V G96
2021-01-12 03:07:06 C 01 53 07.55 +01 10 37.7 V G96
2021-01-12 05:23:29 C 01 53 32.014 +01 10 59.96 U F51
2021-01-12 05:40:18 C 01 53 34.895 +01 11 02.15 U F51
2021-01-12 05:57:04 C 01 53 37.766 +01 11 04.38 U F51
2021-02-01 06:33:42 C 03 30 18.30 +02 56 32.9 V T05
2021-02-01 06:38:58 C 03 30 19.40 +02 56 34.6 V T05
2021-02-01 06:48:15 C 03 30 21.46 +02 56 37.9 V T05
2021-02-01 07:08:01 C 03 30 25.70 +02 56 43.1 V T05
2021-02-07 02:59:43 C 04 01 30.76 +03 38 17.6 V G96
2021-02-07 03:07:51 C 04 01 32.53 +03 38 20.2 V G96
2021-02-07 03:15:59 C 04 01 34.31 +03 38 22.7 V G96
2021-02-07 03:24:06 C 04 01 36.08 +03 38 25.0 V G96
2021-04-07 05:55:25 C 08 25 17.878 +07 05 37.59 U F51
2021-04-07 05:56:23 C 08 25 18.018 +07 05 37.36 U F51
2021-04-07 06:11:30 C 08 25 19.954 +07 05 36.14 U F51
2021-04-07 06:12:27 C 08 25 20.065 +07 05 36.00 U F51
2021-04-07 06:28:27 C 08 25 22.134 +07 05 34.68 U F51
2021-04-07 06:43:32 C 08 25 24.071 +07 05 33.35 U F51
2021-04-07 06:44:28 C 08 25 24.203 +07 05 33.33 U F51