620071 (2011 WN15)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.8580969780 ± 6.64e-08
Semi-major axis (a)1.2169399810 AU ± 5.06e-09
Inclination (i)33.42004606° ± 1.74e-05
Long. of Asc. Node (Ω)75.53548371° ± 2.40e-06
Arg. of Perihelion (ω)218.58588748° ± 7.99e-06
Mean Anomaly (M)183.13554264° ± 6.75e-06
Mean Motion (n)0.7341901217°/day ± 4.58e-09
Perihelion dist (q)0.17268746 AU ± 8.09e-08
Aphelion dist (Q)2.26119250 AU ± 8.14e-08
Orbital Period1.34246737 yr ± 8.38e-09
NGA Modelr2
A21.32692774e-14 ± 4.37e-15 AU/d²
Physical Parameters
H (abs. magnitude)19.64
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.408″
Uncertainty0
Orbit TypeApollo
MOID0.003673 AU
Observations Used322
Radar Obs Used8
Oppositions2
Arc Total2011-2020
First Observation Used2011-11-22
Last Observation Used2020-01-20
Observations (335)
Date Type RA Dec Mag Band Observatory
2019-12-23 01:17:25 C 01 51 54.90 +26 17 16.1 q H45
2019-12-23 01:19:09 C 01 51 55.18 +26 17 18.8 q H45
2019-12-23 01:20:46 C 01 51 55.46 +26 17 20.8 q H45
2019-12-23 01:22:48 C 01 51 55.80 +26 17 23.5 q H45
2019-12-23 01:24:11 C 01 51 56.06 +26 17 25.6 q H45
2019-12-23 01:25:35 C 01 51 56.30 +26 17 27.2 q H45
2019-12-23 22:58:20 C 01 55 35.80 +26 44 06.6 q I15
2019-12-23 23:02:29 C 01 55 36.40 +26 44 11.6 q I15
2019-12-23 23:06:39 C 01 55 37.06 +26 44 16.6 q I15
2019-12-24 19:36:52 C 01 58 44.86 +27 06 31.7 V C95
2019-12-24 19:38:51 C 01 58 45.14 +27 06 34.2 V C95
2019-12-24 19:40:35 C 01 58 45.34 +27 06 35.6 V C95
2019-12-24 19:42:20 C 01 58 45.67 +27 06 37.5 V C95
2019-12-24 19:44:04 C 01 58 45.86 +27 06 39.2 V C95
2019-12-24 19:45:49 C 01 58 46.10 +27 06 40.8 V C95
2019-12-29 16:37:52 C 02 12 37.48 +28 35 43.7 u B18
2019-12-29 16:41:15 C 02 12 37.81 +28 35 45.7 u B18
2019-12-29 16:48:31 C 02 12 38.47 +28 35 50.1 u B18
2019-12-29 16:51:55 C 02 12 38.82 +28 35 51.8 u B18
2019-12-29 16:55:19 C 02 12 39.13 +28 35 53.9 u B18
2019-12-29 17:02:06 C 02 12 39.76 +28 35 57.8 u B18
2019-12-29 17:05:30 C 02 12 40.10 +28 35 59.8 u B18
2019-12-29 17:12:40 C 02 12 40.73 +28 36 03.4 u B18
2019-12-29 17:19:28 C 02 12 41.42 +28 36 07.7 u B18
2019-12-29 17:22:52 C 02 12 41.60 +28 36 09.5 u B18
2019-12-29 17:26:17 C 02 12 41.99 +28 36 11.4 u B18
2020-01-01 02:24:53 C 02 17 54.40 +29 05 22.4 U I41
2020-01-01 02:26:51 C 02 17 54.56 +29 05 23.6 U I41
2020-01-01 03:02:34 C 02 17 57.38 +29 05 39.7 U I41
2020-01-01 03:05:16 C 02 17 57.63 +29 05 41.5 U I41
2020-01-01 03:32:56 C 02 17 59.85 +29 05 53.7 U I41
2020-01-01 03:34:19 C 02 17 59.94 +29 05 54.5 U I41
2020-01-20 02:24:37 C 02 48 09.94 +31 10 18.2 V V14
2020-01-20 02:43:51 C 02 48 10.99 +31 10 21.7 V V14
2020-01-20 03:03:00 C 02 48 12.03 +31 10 25.2 V V14
Radar Observations (8)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2015-12-03 09:38:00 211473.8293 2 Hz 2380 -1 -1
2015-12-03 09:59:00 91119814.58 4 us 2380 -1 -1
2015-12-04 10:01:00 85117281.92 0.5 us 2380 -1 -1
2015-12-05 08:54:00 82713893.69 0.5 us 2380 -1 -1
2015-12-06 08:27:00 83932869.53 0.5 us 2380 -1 -1
2019-12-12 22:01:00 -342376.3337 0.4 Hz 2380 -1 -1
2019-12-12 22:19:00 73085766.54 4 us 2380 -1 -1
2019-12-12 23:11:00 73540122.83 0.3 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)