2015 WF13

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4587610834 ± 3.08e-07
Semi-major axis (a)1.8571495872 AU ± 1.08e-06
Inclination (i)11.69567317° ± 6.51e-06
Long. of Asc. Node (Ω)71.09774846° ± 2.15e-06
Arg. of Perihelion (ω)359.18742483° ± 2.16e-05
Mean Anomaly (M)337.33620774° ± 1.25e-03
Mean Motion (n)0.3894412468°/day ± 3.39e-07
Perihelion dist (q)1.00516163 AU ± 8.17e-07
Aphelion dist (Q)2.70913754 AU ± 1.67e-06
Orbital Period2.53087286 yr ± 2.20e-06
Physical Parameters
H (abs. magnitude)23.20
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.490″
Uncertainty1
Orbit TypeApollo
MOID0.018522 AU
Observations Used198
Radar Obs Used4
Oppositions1
Arc Total2015-2015
First Observation Used2015-11-29
Last Observation Used2015-12-17
Observations (211)
Date Type RA Dec Mag Band Observatory
2015-12-14 03:09:49 C 04 05 40.38 +77 31 32.4 u 926
2015-12-14 03:12:55 C 04 05 46.31 +77 31 55.4 u 926
2015-12-15 03:15:08 C 05 01 16.62 +79 47 46.7 u 926
2015-12-15 03:18:44 C 05 01 25.13 +79 48 04.0 u 926
2015-12-15 03:22:17 C 05 01 33.56 +79 48 21.1 u 926
2015-12-16 03:04:01 C 06 05 48.85 +81 01 14.3 u 926
2015-12-16 03:08:07 C 06 06 00.15 +81 01 24.0 u 926
2015-12-16 03:12:14 C 06 06 11.10 +81 01 34.4 u 926
2015-12-17 11:24:33 C 07 30 30.50 +81 21 21.8 u 926
2015-12-17 11:29:30 C 07 30 41.28 +81 21 17.8 u 926
2015-12-17 11:34:28 C 07 30 52.30 +81 21 13.6 u 926
Radar Observations (4)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2015-12-06 01:07:00 25165.1434 2 Hz 2380 -1 -1
2015-12-06 01:17:00 28173988.37 4 us 2380 -1 -1
2015-12-07 01:29:00 27723174.28 0.5 us 2380 -1 -1
2015-12-07 01:54:00 27724446.03 0.5 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)