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
2012-01-14 09:46:27 C 08 39 40.00 +25 34 19.5 u H45
2012-01-14 09:47:25 C 08 39 40.52 +25 33 50.2 u H45
2012-01-14 09:48:27 C 08 39 41.06 +25 33 19.3 u H45
2012-01-14 09:49:34 C 08 39 41.65 +25 32 45.4 u H45
2012-01-14 21:16:35 C 08 47 47.14 +19 19 49.6 c A48
2012-01-14 21:17:56 C 08 47 48.01 +19 19 01.5 c A48
2012-01-14 21:19:28 C 08 47 48.94 +19 18 07.4 c A48
2012-01-14 21:21:01 C 08 47 49.86 +19 17 13.3 c A48
2012-01-14 21:42:07 C 08 48 03.65 +19 04 44.7 u C38
2012-01-14 21:45:07 C 08 48 05.50 +19 02 58.4 u C38
2012-01-14 21:48:08 C 08 48 07.31 +19 01 11.8 u C38
2012-01-14 22:06:34 C 08 48 18.42 +18 50 17.9 u C38
2012-01-14 22:18:33 C 08 48 25.60 +18 43 10.0 u C38
2012-01-14 22:33:33 C 08 48 34.52 +18 34 13.4 u C38
2012-01-14 23:26:48 C 08 49 05.44 +18 02 02.9 t 204
2012-01-14 23:27:48 C 08 49 06.02 +18 01 26.3 t 204
2012-01-14 23:28:48 C 08 49 06.61 +18 00 49.9 t 204
2012-01-14 23:29:48 C 08 49 07.20 +18 00 13.3 t 204
2012-01-14 23:30:48 C 08 49 07.79 +17 59 36.6 t 204
2012-01-15 05:52:06 C 08 53 41.09 +13 56 01.4 t H21
2012-01-15 05:56:00 C 08 53 43.46 +13 53 25.1 t H21
2012-01-15 05:59:54 C 08 53 45.83 +13 50 48.3 t H21
2012-01-15 06:03:46 C 08 53 48.19 +13 48 12.5 t H21
2012-01-15 06:07:39 C 08 53 50.55 +13 45 35.9 t H21
2012-01-15 06:11:44 C 08 53 53.03 +13 42 51.5 t H21
2012-01-15 09:27:57 C 08 55 53.94 +11 28 28.9 t H47
2012-01-15 09:29:09 C 08 55 54.70 +11 27 37.9 t H47
2012-01-15 09:30:42 C 08 55 55.66 +11 26 32.1 t H47
2012-01-15 09:32:12 C 08 55 56.65 +11 25 28.3 t H47
2012-01-15 22:13:02 C 09 06 32.57 +01 44 27.7 c A24
2012-01-15 22:13:58 C 09 06 33.27 +01 43 41.5 c A24
2012-01-15 22:14:19 C 09 06 33.52 +01 43 24.7 c A24
2012-01-15 22:14:40 C 09 06 33.78 +01 43 06.8 c A24
2012-01-15 22:15:02 C 09 06 34.06 +01 42 49.6 c A24
2012-01-15 22:16:07 C 09 06 34.86 +01 41 56.1 c A24
2012-01-15 22:17:41 C 09 06 36.00 +01 40 40.2 c A24
2012-01-15 22:17:55 C 09 06 36.18 +01 40 28.6 c A24
2012-01-15 22:20:46 C 09 06 38.27 +01 38 10.2 c A24
2012-01-15 22:24:20 C 09 06 40.89 +01 35 15.7 c A24
2012-01-15 22:24:35 C 09 06 41.06 +01 35 04.0 c A24
2012-01-16 01:59:33 C 09 09 15.72 -01 22 29.1 u 160
2012-01-16 02:00:36 C 09 09 16.49 -01 23 22.7 u 160
2012-01-16 02:02:09 C 09 09 17.63 -01 24 39.4 u 160
2012-01-16 02:03:43 C 09 09 18.78 -01 25 58.6 u 160
2012-01-16 02:12:00 C 09 09 31.65 -01 33 50.7 u J95
2012-01-16 02:15:50 C 09 09 34.54 -01 37 04.5 u J95
2012-01-16 02:19:02 C 09 09 36.93 -01 39 45.9 u J95
2012-01-16 05:51:35 C 09 12 59.97 -04 37 58.0 u H23
2012-01-16 06:01:22 C 09 13 06.68 -04 47 36.8 r H21
2012-01-16 06:02:42 C 09 13 07.66 -04 48 45.3 r H21
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)