856903 (2011 YS62)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5823547588 ± 2.86e-09
Semi-major axis (a)2.5027622848 AU ± 1.97e-09
Inclination (i)21.62575492° ± 2.68e-06
Long. of Asc. Node (Ω)58.56438125° ± 1.31e-06
Arg. of Perihelion (ω)357.21791538° ± 5.63e-06
Mean Anomaly (M)187.53766187° ± 1.79e-06
Mean Motion (n)0.2489332295°/day ± 2.94e-10
Perihelion dist (q)1.04526676 AU ± 7.22e-09
Aphelion dist (Q)3.96025781 AU ± 7.82e-09
Orbital Period3.95940022 yr ± 4.68e-09
Physical Parameters
H (abs. magnitude)19.68
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.272″
Uncertainty0
Orbit TypeAmor
MOID0.056542 AU
Observations Used394
Radar Obs Used5
Oppositions6
Arc Total2011-2024
First Observation Used2011-11-23
Last Observation Used2024-03-03
Observations (404)
Date Type RA Dec Mag Band Observatory
2011-11-23 05:03:05 C 23 23 06.849 -24 11 30.66 t F51
2011-11-23 05:18:42 C 23 23 07.274 -24 10 17.42 t F51
2011-11-28 05:58:22 C 23 28 19.575 -14 02 43.44 t F51
2011-12-29 03:41:43 C 00 35 26.26 +46 54 33.5 r 703
2011-12-29 03:49:45 C 00 35 27.02 +46 54 57.7 r 703
2011-12-29 03:57:50 C 00 35 28.21 +46 55 23.1 r 703
2011-12-29 04:05:51 C 00 35 29.25 +46 55 48.9 r 703
2011-12-29 05:28:07 C 00 35 40.89 +46 59 57.3 o G48
2011-12-29 05:30:35 C 00 35 41.23 +47 00 05.2 o G48
2011-12-29 05:32:52 C 00 35 41.65 +47 00 13.0 o 291
2011-12-29 05:33:08 C 00 35 41.61 +47 00 12.4 o G48
2011-12-29 05:34:45 C 00 35 41.90 +47 00 18.8 o 291
2011-12-29 05:35:41 C 00 35 42.02 +47 00 21.3 o G48
2011-12-29 05:36:35 C 00 35 42.19 +47 00 24.3 o 291
2011-12-29 05:38:11 C 00 35 42.38 +47 00 28.2 o G48
2011-12-29 05:40:41 C 00 35 42.72 +47 00 35.7 o G48
2011-12-29 18:23:59 C 00 37 38.33 +47 39 35.8 t 204
2011-12-29 18:36:52 C 00 37 40.17 +47 40 14.3 t 204
2011-12-29 23:29:36 C 00 38 23.23 +47 54 43.4 u J95
2011-12-29 23:34:35 C 00 38 24.08 +47 54 58.7 u J95
2011-12-30 05:36:37 C 00 39 18.72 +48 13 10.2 c 854
2011-12-30 05:58:43 C 00 39 22.07 +48 14 14.2 c 854
2011-12-30 17:08:52 C 00 41 07.60 +48 47 05.7 u 595
2011-12-30 17:56:54 C 00 41 14.65 +48 49 24.8 u 595
2011-12-30 18:14:43 C 00 41 17.23 +48 50 16.8 u 595
2011-12-30 18:59:04 C 00 41 23.83 +48 52 24.3 w B28
2011-12-30 19:07:23 C 00 41 25.05 +48 52 48.1 w B28
2011-12-30 19:15:42 C 00 41 26.27 +48 53 11.6 w B28
2011-12-31 03:19:30 C 00 42 42.04 +49 16 30.2 o 291
2011-12-31 03:20:46 C 00 42 42.25 +49 16 33.7 o 291
2011-12-31 17:52:57 C 00 45 01.84 +49 57 26.1 w B28
2011-12-31 17:58:56 C 00 45 02.75 +49 57 42.8 w B28
2011-12-31 18:04:56 C 00 45 03.66 +49 57 59.5 w B28
2012-01-01 04:28:18 C 00 46 43.37 +50 26 38.2 o 291
2012-01-01 04:30:00 C 00 46 43.60 +50 26 42.8 o 291
2012-01-01 04:31:32 C 00 46 43.88 +50 26 46.7 o 291
2012-01-01 23:08:00 C 00 49 48.29 +51 16 27.9 u J95
2012-01-01 23:20:44 C 00 49 50.38 +51 17 00.3 u J95
2012-01-01 23:28:20 C 00 49 51.65 +51 17 19.9 u J95
2012-01-02 00:47:33 C 00 50 06.73 +51 21 04.5 u H36
2012-01-02 01:09:06 C 00 50 10.02 +51 22 01.9 u H36
2012-01-02 01:15:58 C 00 50 11.00 +51 22 19.8 u H36
2012-01-02 03:51:57 C 00 50 36.26 +51 29 08.0 o 291
2012-01-02 03:55:42 C 00 50 36.82 +51 29 17.9 o 291
2012-01-02 19:09:36 C 00 53 13.27 +52 08 27.2 u J95
2012-01-02 19:28:49 C 00 53 16.38 +52 09 15.1 u J95
2012-01-03 01:54:43 C 00 54 22.79 +52 25 37.1 u H36
2012-01-03 02:02:42 C 00 54 24.05 +52 25 54.4 u H36
2012-01-03 02:15:44 C 00 54 26.23 +52 26 27.0 u H36
2012-01-03 02:22:07 C 00 54 27.33 +52 26 42.2 u H36
Radar Observations (5)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2015-11-30 00:58:00 101338022.37 4 us 2380 -1 -1
2015-11-30 01:56:00 101484309.76 0.5 us 2380 -1 -1
2019-11-13 07:17:00 18833.8051 0.1 Hz 2380 -1 -1
2019-11-13 07:37:00 105532015.8 4 us 2380 -1 -1
2019-11-13 08:15:00 105515524.65 1 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)