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
2015-12-06 00:13:58 C 01 16 04.17 +53 41 36.0 v I76
2015-12-06 00:16:58 C 01 16 04.15 +53 41 54.4 v I76
2015-12-06 00:19:59 C 01 16 04.11 +53 42 12.0 v I76
2015-12-06 00:22:58 C 01 16 04.07 +53 42 30.2 v I76
2015-12-06 00:25:23 C 01 16 04.04 +53 42 44.4 v I76
2015-12-09 00:27:26 C 01 17 13.39 +60 09 32.4 u H21
2015-12-09 00:30:31 C 01 17 13.41 +60 09 46.9 u H21
2015-12-09 00:33:09 C 01 17 13.37 +60 09 59.6 u H21
2015-12-09 00:36:35 C 01 17 13.38 +60 10 15.7 u H21
2015-12-09 00:39:06 C 01 17 13.39 +60 10 27.4 u H21
2015-12-09 00:41:18 C 01 17 13.39 +60 10 37.9 u H21
2015-12-10 00:55:24 C 01 17 56.20 +61 58 14.7 u H21
2015-12-10 01:01:17 C 01 17 56.23 +61 58 40.0 u H21
2015-12-10 01:07:10 C 01 17 56.23 +61 59 05.1 u H21
2015-12-10 01:13:02 C 01 17 56.30 +61 59 30.1 u H21
2015-12-10 01:18:08 C 01 17 56.32 +61 59 52.8 u H21
2015-12-15 02:56:24 C 01 24 59.46 +68 54 58.0 q H45
2015-12-15 02:58:43 C 01 24 59.64 +68 55 04.2 q H45
2015-12-15 03:00:39 C 01 24 59.74 +68 55 09.4 q H45
2015-12-15 03:02:22 C 01 24 59.86 +68 55 14.1 q H45
2015-12-15 03:03:50 C 01 24 59.89 +68 55 17.9 q H45
2015-12-15 03:05:22 C 01 25 00.06 +68 55 22.0 q H45
2016-01-19 07:01:20 C 05 19 25.419 +78 18 38.17 L F51
2016-01-19 07:20:06 C 05 19 30.373 +78 18 28.10 L F51
2016-01-19 07:38:57 C 05 19 35.297 +78 18 17.72 L F51
2016-01-19 07:57:50 C 05 19 40.311 +78 18 07.48 L F51
2016-01-24 10:21:35 C 05 51 35.968 +76 59 50.80 L F51
2016-01-24 10:42:35 C 05 51 40.534 +76 59 35.05 L F51
2016-01-24 11:03:42 C 05 51 45.288 +76 59 18.60 L F51
2016-01-24 11:24:40 C 05 51 49.763 +76 59 02.78 L F51
2019-10-09 07:15:37 C 04 27 09.16 -46 18 32.8 W84
2019-10-09 07:24:34 C 04 27 10.28 -46 18 27.9 W84
2019-10-09 07:27:33 C 04 27 10.65 -46 18 26.2 W84
2019-10-09 07:30:32 C 04 27 11.03 -46 18 24.6 W84
2019-10-09 07:33:30 C 04 27 11.40 -46 18 23.0 W84
2019-10-09 07:36:29 C 04 27 11.77 -46 18 21.4 W84
2019-10-15 21:16:29 C 04 49 37.04 -44 11 50.5 V K92
2019-10-15 21:18:16 C 04 49 37.30 -44 11 48.7 V K92
2019-10-15 21:20:02 C 04 49 37.56 -44 11 46.9 V K92
2019-10-15 21:21:48 C 04 49 37.81 -44 11 45.2 V K92
2019-10-15 21:23:35 C 04 49 38.08 -44 11 43.4 V K92
2019-10-15 21:25:21 C 04 49 38.35 -44 11 41.6 V K92
2019-10-15 21:27:08 C 04 49 38.60 -44 11 39.8 V K92
2019-10-15 21:28:54 C 04 49 38.83 -44 11 38.0 V K92
2019-10-15 21:30:41 C 04 49 39.10 -44 11 36.3 V K92
2019-10-15 21:32:27 C 04 49 39.37 -44 11 34.6 V K92
2019-10-23 12:06:58 C 05 19 14.09 -39 27 33.1 V T08
2019-10-23 12:12:55 C 05 19 15.04 -39 27 20.3 V T08
2019-10-23 12:22:14 C 05 19 16.54 -39 27 01.0 V T08
2019-10-23 12:37:32 C 05 19 19.00 -39 26 28.2 V T08
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)