2012 WL4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1383871568 ± 6.32e-08
Semi-major axis (a)1.4219653414 AU ± 6.37e-09
Inclination (i)31.17815746° ± 6.04e-06
Long. of Asc. Node (Ω)217.55098460° ± 6.10e-06
Arg. of Perihelion (ω)130.50440745° ± 1.72e-05
Mean Anomaly (M)297.75184788° ± 1.91e-05
Mean Motion (n)0.5812711381°/day ± 3.91e-09
Perihelion dist (q)1.22518360 AU ± 9.00e-08
Aphelion dist (Q)1.61874708 AU ± 9.02e-08
Orbital Period1.69563947 yr ± 1.14e-08
Physical Parameters
H (abs. magnitude)19.95
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.202″
Uncertainty0
Orbit TypeAmor
MOID0.278529 AU
Observations Used113
Oppositions5
Arc Total2012-2025
First Observation Used2012-11-19
Last Observation Used2025-02-01
Observations (117)
Date Type RA Dec Mag Band Observatory
2022-05-23 12:20:28 C 16 53 40.605 +22 33 03.68 U F52
2022-05-23 12:40:45 C 16 53 39.373 +22 33 47.73 U F52
2022-05-23 13:01:08 C 16 53 38.151 +22 34 32.21 U F52
2022-05-26 22:46:02 C 16 48 55.54 +25 26 14.8 X C95
2022-05-26 23:09:01 C 16 48 54.03 +25 27 02.4 X C95
2022-05-26 23:29:22 C 16 48 52.83 +25 27 42.1 X C95
2022-05-27 09:26:41 C 16 48 16.490 +25 47 45.38 U I41
2022-05-27 10:22:54 C 16 48 12.900 +25 49 37.20 U I41
2022-05-27 10:23:36 C 16 48 12.850 +25 49 38.39 U I41
2022-05-27 10:37:41 C 16 48 11.950 +25 50 06.40 U I41
2022-06-04 08:42:15 C 16 36 17.316 +31 28 21.76 V G96
2022-06-04 08:49:50 C 16 36 16.794 +31 28 33.60 V G96
2022-06-04 08:57:24 C 16 36 16.279 +31 28 45.16 V G96
2022-06-04 09:05:00 C 16 36 15.714 +31 28 56.89 V G96
2025-02-01 03:07:50 C 06 48 41.290 -43 14 20.20 V 807
2025-02-01 03:16:44 C 06 48 40.870 -43 14 14.80 V 807
2025-02-01 03:26:42 C 06 48 40.390 -43 14 09.10 V 807