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
2023-10-08 23:31:08 S 06 49 26.18 -04 28 49.8 L C51
2023-10-09 01:04:16 S 06 49 45.66 -04 25 26.5 L C51
2023-10-09 02:37:26 S 06 50 05.15 -04 22 03.1 L C51
2023-10-09 04:10:02 S 06 50 24.48 -04 18 41.3 L C51
2023-10-31 19:47:35 C 08 49 37.80 +17 25 01.9 V O18
2023-10-31 19:57:24 C 08 49 39.95 +17 25 24.7 V O18
2023-10-31 20:07:14 C 08 49 42.11 +17 25 47.5 V O18
2023-11-16 06:14:17 S 10 08 06.58 +29 29 42.6 L C51
2023-11-16 09:20:23 S 10 08 43.22 +29 34 39.2 L C51
2023-11-16 15:32:59 S 10 09 56.41 +29 44 30.3 L C51
2023-11-16 18:39:06 S 10 10 32.86 +29 49 24.0 L C51
2023-11-16 21:45:13 S 10 11 09.28 +29 54 16.0 L C51
2023-11-17 00:51:21 S 10 11 45.61 +29 59 07.1 L C51
2023-11-17 03:56:44 S 10 12 21.75 +30 03 55.1 L C51
2023-11-17 07:03:35 S 10 12 58.12 +30 08 45.9 L C51
2023-11-17 10:09:41 S 10 13 34.29 +30 13 33.7 L C51
2023-11-17 11:41:55 S 10 13 52.20 +30 15 55.4 L C51
2023-11-17 13:15:48 S 10 14 10.39 +30 18 21.4 L C51
2023-11-17 14:48:46 S 10 14 28.39 +30 20 44.1 L C51
2023-11-17 17:54:54 S 10 15 04.38 +30 25 29.3 L C51
2023-11-18 12:30:52 S 10 18 38.99 +30 53 37.3 L C51
2023-11-18 15:37:43 S 10 19 14.67 +30 58 17.6 L C51
2023-11-18 18:43:39 S 10 19 50.12 +31 02 54.3 L C51
2023-11-18 18:43:50 S 10 19 50.20 +31 02 54.6 L C51
2023-11-18 21:49:46 S 10 20 25.56 +31 07 30.3 L C51
2023-11-19 00:55:53 S 10 21 00.91 +31 12 05.3 L C51
2023-11-19 04:02:00 S 10 21 36.26 +31 16 39.6 L C51
2023-11-19 07:08:07 S 10 22 11.48 +31 21 12.6 L C51
2023-11-24 13:18:38 C 10 45 09.162 +34 12 41.31 X F51
2023-11-24 13:34:20 C 10 45 11.816 +34 13 01.44 X F51
2023-11-24 13:48:14 C 10 45 14.182 +34 13 19.50 X F51
2023-11-24 14:02:09 C 10 45 16.537 +34 13 37.75 X F51
2023-11-24 14:29:04 C 10 45 21.078 +34 14 12.44 X F51
2023-11-24 14:44:51 C 10 45 23.738 +34 14 32.72 X F51
2023-11-24 15:01:29 C 10 45 26.536 +34 14 54.01 X F51
2023-12-31 15:23:06 C 12 24 00.958 +47 50 19.67 X F52
2023-12-31 15:30:41 C 12 24 01.261 +47 50 25.58 X F52
2023-12-31 15:45:54 C 12 24 01.828 +47 50 37.60 X F52
2024-01-22 13:39:36 C 12 22 54.169 +54 06 31.47 X F51
2024-01-22 13:55:36 C 12 22 53.275 +54 06 41.14 X F51
2024-01-22 14:11:32 C 12 22 52.441 +54 06 50.66 X F51
2024-01-22 14:27:30 C 12 22 51.567 +54 07 00.42 X F51
2024-01-31 08:35:39 C 12 09 05.677 +55 53 25.98 V G96
2024-01-31 08:43:10 C 12 09 05.008 +55 53 29.11 V G96
2024-01-31 08:50:42 C 12 09 04.385 +55 53 32.64 V G96
2024-01-31 08:58:15 C 12 09 03.766 +55 53 35.70 V G96
2024-02-15 10:33:32 C 11 33 10.768 +56 58 42.78 V G96
2024-02-15 10:41:11 C 11 33 09.886 +56 58 42.17 V G96
2024-02-15 10:48:48 C 11 33 08.982 +56 58 41.48 V G96
2024-02-15 10:56:27 C 11 33 08.226 +56 58 41.20 V G96
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)