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
2012-01-05 04:55:13 C 01 03 30.33 +54 27 30.4 o 291
2012-01-05 04:56:56 C 01 03 30.66 +54 27 34.5 o 291
2012-01-05 04:58:37 C 01 03 30.86 +54 27 37.9 o 291
2012-01-06 01:56:28 C 01 07 27.95 +55 14 25.8 o H21
2012-01-06 02:02:47 C 01 07 29.05 +55 14 38.8 o H21
2012-01-06 02:07:41 C 01 07 29.96 +55 14 49.2 o H21
2012-01-07 02:01:40 C 01 12 07.00 +56 05 48.5 o H21
2012-01-07 02:08:55 C 01 12 08.39 +56 06 02.5 o H21
2012-01-07 02:17:03 C 01 12 09.97 +56 06 18.1 o H21
2012-01-09 21:14:32 C 01 25 49.89 +58 16 29.7 v 204
2012-01-09 21:46:09 C 01 25 56.44 +58 17 25.4 v 204
2012-01-10 01:19:11 C 01 26 42.81 +58 23 57.6 o H21
2012-01-10 01:23:59 C 01 26 43.85 +58 24 06.3 o H21
2012-01-10 01:28:49 C 01 26 44.85 +58 24 14.9 o H21
2012-01-25 06:46:23 C 02 59 20.79 +65 29 18.6 o 291
2012-01-25 06:48:44 C 02 59 21.48 +65 29 20.0 o 291
2012-01-25 06:51:04 C 02 59 22.13 +65 29 21.3 o 291
2012-02-20 02:33:18 C 05 46 16.67 +64 30 45.9 u H21
2012-02-20 02:49:46 C 05 46 20.25 +64 30 35.7 u H21
2012-02-20 03:24:53 C 05 46 27.85 +64 30 14.6 u H21
2015-09-26 17:37:19 C 02 11 28.36 -57 57 33.8 q Q62
2015-09-26 17:48:56 C 02 11 28.43 -57 57 38.0 q Q62
2015-09-26 18:00:31 C 02 11 28.57 -57 57 42.3 q Q62
2015-09-27 13:02:51 C 02 11 51.51 -58 05 18.9 q Q62
2015-09-27 13:55:37 C 02 11 51.98 -58 05 41.5 q Q62
2015-09-27 17:23:21 C 02 11 53.61 -58 07 03.3 q Q62
2015-09-27 17:35:28 C 02 11 53.66 -58 07 07.2 q Q62
2015-09-27 17:47:35 C 02 11 53.76 -58 07 11.8 q Q62
2015-09-28 02:02:59 C 02 12 04.83 -58 10 14.5 t W86
2015-09-28 02:07:57 C 02 12 04.88 -58 10 16.5 t W86
2015-09-28 02:12:56 C 02 12 04.94 -58 10 18.8 t W86
2015-09-28 02:17:54 C 02 12 04.99 -58 10 20.9 t W86
2015-09-28 13:09:46 C 02 12 14.43 -58 14 28.2 q Q62
2015-09-28 13:33:57 C 02 12 14.59 -58 14 38.4 q Q62
2015-09-28 14:00:48 C 02 12 14.73 -58 14 48.8 q Q62
2015-10-16 07:21:59 C 02 09 17.62 -58 46 22.7 u 807
2015-10-16 07:24:34 C 02 09 17.47 -58 46 22.4 u 807
2015-10-16 07:27:08 C 02 09 17.34 -58 46 20.8 u 807
2015-10-16 07:29:28 C 02 09 17.27 -58 46 19.7 u 807
2015-10-16 07:32:18 C 02 09 17.24 -58 46 19.6 u 807
2015-10-20 05:38:47 C 02 06 17.04 -58 05 30.9 u 807
2015-10-20 05:40:43 C 02 06 16.95 -58 05 29.5 u 807
2015-10-20 05:42:32 C 02 06 16.86 -58 05 28.4 u 807
2015-10-20 05:44:37 C 02 06 16.75 -58 05 27.3 u 807
2015-10-20 05:45:55 C 02 06 16.67 -58 05 26.6 u 807
2015-10-24 06:29:16 C 02 02 26.15 -56 55 34.1 u 807
2015-10-24 06:30:57 C 02 02 26.05 -56 55 32.4 u 807
2015-10-24 06:32:38 C 02 02 25.95 -56 55 30.9 u 807
2015-10-24 06:34:19 C 02 02 25.86 -56 55 29.1 u 807
2015-10-24 06:36:00 C 02 02 25.77 -56 55 27.5 u 807
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)