2011 YH40

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3277306201 ± 2.39e-07
Semi-major axis (a)1.3972868616 AU ± 4.88e-07
Inclination (i)11.33655656° ± 7.17e-06
Long. of Asc. Node (Ω)294.19772010° ± 8.83e-07
Arg. of Perihelion (ω)220.93110268° ± 1.02e-05
Mean Anomaly (M)118.01053457° ± 1.57e-03
Mean Motion (n)0.5967383002°/day ± 3.12e-07
Perihelion dist (q)0.93935317 AU ± 4.68e-07
Aphelion dist (Q)1.85522055 AU ± 7.29e-07
Orbital Period1.65168933 yr ± 8.65e-07
Physical Parameters
H (abs. magnitude)22.90
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.254″
Uncertainty1
Orbit TypeApollo
MOID0.011860 AU
Observations Used390
Radar Obs Used3
Oppositions1
Arc Total2011-2012
First Observation Used2011-12-29
Last Observation Used2012-01-26
Observations (396)
Date Type RA Dec Mag Band Observatory
2012-01-06 07:53:22 C 07 32 05.91 +57 14 58.8 u H45
2012-01-06 07:56:34 C 07 32 05.40 +57 14 35.8 o H21
2012-01-06 07:57:27 C 07 32 06.37 +57 14 47.4 u H45
2012-01-06 08:00:22 C 07 32 06.79 +57 14 39.4 u H45
2012-01-06 08:04:22 C 07 32 07.33 +57 14 27.5 u H45
2012-01-06 08:10:09 C 07 32 08.00 +57 14 11.3 u H45
2012-01-06 08:14:22 C 07 32 08.54 +57 13 59.7 u H45
2012-01-06 08:15:48 C 07 32 08.73 +57 13 55.5 u H45
2012-01-06 08:19:22 C 07 32 09.09 +57 13 45.5 u H45
2012-01-06 08:23:22 C 07 32 09.66 +57 13 33.9 u H45
2012-01-06 08:28:05 C 07 32 10.26 +57 13 20.3 u H45
2012-01-06 08:31:22 C 07 32 10.66 +57 13 11.1 u H45
2012-01-06 08:37:13 C 07 32 11.45 +57 12 54.3 u H45
2012-01-06 08:40:23 C 07 32 11.86 +57 12 45.0 u H45
2012-01-06 08:46:10 C 07 32 12.60 +57 12 28.1 u H45
2012-01-06 09:05:24 C 07 32 15.20 +57 11 31.9 u H45
2012-01-06 09:10:22 C 07 32 15.81 +57 11 17.0 u H45
2012-01-06 09:15:19 C 07 32 16.44 +57 11 03.0 u H45
2012-01-06 09:21:51 C 07 32 17.35 +57 10 43.0 u H45
2012-01-06 09:26:22 C 07 32 17.97 +57 10 30.0 u H45
2012-01-06 22:04:14 C 07 35 03.40 +56 34 19.8 t 204
2012-01-06 22:10:24 C 07 35 04.32 +56 34 02.4 t 204
2012-01-06 22:16:34 C 07 35 05.25 +56 33 44.9 t 204
2012-01-06 22:22:45 C 07 35 06.17 +56 33 27.3 t 204
2012-01-06 22:28:55 C 07 35 07.07 +56 33 09.8 t 204
2012-01-07 05:14:48 C 07 36 30.46 +56 12 23.2 o H21
2012-01-07 05:17:54 C 07 36 30.89 +56 12 13.8 o H21
2012-01-07 05:21:25 C 07 36 31.41 +56 12 02.8 o H21
2012-01-07 05:24:31 C 07 36 31.87 +56 11 53.0 o H21
2012-01-07 05:28:01 C 07 36 32.37 +56 11 42.3 o H21
2012-01-07 05:31:04 C 07 36 32.81 +56 11 32.8 o H21
2012-01-07 05:35:24 C 07 36 33.46 +56 11 19.0 o H21
2012-01-09 21:22:26 C 07 52 45.69 +51 22 16.3 c A48
2012-01-09 21:25:40 C 07 52 46.52 +51 21 56.8 c A48
2012-01-09 21:28:11 C 07 52 47.08 +51 21 42.1 c A48
2012-01-09 21:31:03 C 07 52 47.82 +51 21 24.9 c A48
2012-01-09 23:49:45 C 07 53 20.26 +51 07 15.1 u 160
2012-01-09 23:52:52 C 07 53 20.99 +51 06 55.2 u 160
2012-01-09 23:55:38 C 07 53 21.62 +51 06 37.6 u 160
2012-01-10 05:03:58 C 07 55 04.44 +50 32 41.3 o H21
2012-01-10 05:08:03 C 07 55 05.40 +50 32 14.2 o H21
2012-01-10 05:12:09 C 07 55 06.36 +50 31 47.1 o H21
2012-01-10 05:16:14 C 07 55 07.36 +50 31 19.9 o H21
2012-01-10 05:20:19 C 07 55 08.33 +50 30 52.8 o H21
2012-01-10 05:24:24 C 07 55 09.29 +50 30 25.3 o H21
2012-01-10 05:30:43 C 07 55 10.79 +50 29 43.3 o H21
2012-01-11 21:33:41 C 08 09 41.47 +44 31 04.5 c A24
2012-01-11 21:33:59 C 08 09 41.56 +44 31 01.4 c A24
2012-01-11 21:35:43 C 08 09 42.16 +44 30 41.7 c A24
2012-01-11 22:41:51 C 08 10 04.36 +44 18 15.0 c A24
Radar Observations (3)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2012-01-15 04:30:00 286319.583 4 Hz 8560 -14 -14
2012-01-15 04:50:00 283841.666 1 Hz 8560 -14 -14
2012-01-15 05:20:00 15872483.07 10 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)