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 04:15:14 C 07 31 39.05 +57 24 11.1 u H45
2012-01-06 04:17:45 C 07 31 39.39 +57 24 04.9 u H45
2012-01-06 04:22:11 C 07 31 39.93 +57 23 54.8 u H45
2012-01-06 04:25:23 C 07 31 40.37 +57 23 47.4 u H45
2012-01-06 04:29:24 C 07 31 40.90 +57 23 38.2 u H45
2012-01-06 04:33:23 C 07 31 41.40 +57 23 29.0 u H45
2012-01-06 04:37:23 C 07 31 41.88 +57 23 19.6 u H45
2012-01-06 04:41:22 C 07 31 42.42 +57 23 10.4 u H45
2012-01-06 04:45:22 C 07 31 42.96 +57 23 01.1 u H45
2012-01-06 04:49:22 C 07 31 43.46 +57 22 51.5 u H45
2012-01-06 04:54:59 C 07 31 44.16 +57 22 38.0 u H45
2012-01-06 05:01:22 C 07 31 44.94 +57 22 22.7 u H45
2012-01-06 05:02:48 C 07 31 45.15 +57 22 19.6 u H45
2012-01-06 05:07:20 C 07 31 45.73 +57 22 08.9 u H45
2012-01-06 05:11:22 C 07 31 46.26 +57 21 59.4 u H45
2012-01-06 05:14:43 C 07 31 46.67 +57 21 50.7 u H45
2012-01-06 05:19:22 C 07 31 47.22 +57 21 39.7 u H45
2012-01-06 05:21:04 C 07 31 47.51 +57 21 35.7 u H45
2012-01-06 05:25:22 C 07 31 47.97 +57 21 24.6 u H45
2012-01-06 05:28:22 C 07 31 48.31 +57 21 17.9 u H45
2012-01-06 05:32:16 C 07 31 48.78 +57 21 08.5 u H45
2012-01-06 05:36:22 C 07 31 49.27 +57 20 58.4 u H45
2012-01-06 05:39:22 C 07 31 49.62 +57 20 50.8 u H45
2012-01-06 05:48:04 C 07 31 50.74 +57 20 29.2 u H45
2012-01-06 05:52:26 C 07 31 51.30 +57 20 18.3 u H45
2012-01-06 05:58:17 C 07 31 51.94 +57 20 04.1 u H45
2012-01-06 06:05:08 C 07 31 52.79 +57 19 46.4 u H45
2012-01-06 06:09:50 C 07 31 53.35 +57 19 34.4 u H45
2012-01-06 06:13:23 C 07 31 53.81 +57 19 25.5 u H45
2012-01-06 06:18:35 C 07 31 54.42 +57 19 12.2 u H45
2012-01-06 06:22:22 C 07 31 54.84 +57 19 02.4 u H45
2012-01-06 06:26:22 C 07 31 55.36 +57 18 52.4 u H45
2012-01-06 06:30:22 C 07 31 55.82 +57 18 42.2 u H45
2012-01-06 06:34:22 C 07 31 56.34 +57 18 31.7 u H45
2012-01-06 07:02:14 C 07 31 59.64 +57 17 18.5 u H45
2012-01-06 07:06:22 C 07 32 00.13 +57 17 07.2 u H45
2012-01-06 07:10:24 C 07 32 00.63 +57 16 56.3 u H45
2012-01-06 07:11:57 C 07 32 00.83 +57 16 52.1 u H45
2012-01-06 07:15:38 C 07 32 01.24 +57 16 42.2 u H45
2012-01-06 07:20:19 C 07 32 01.83 +57 16 29.6 u H45
2012-01-06 07:24:22 C 07 32 02.35 +57 16 18.4 u H45
2012-01-06 07:28:22 C 07 32 02.85 +57 16 07.7 u H45
2012-01-06 07:32:47 C 07 32 03.33 +57 15 55.6 u H45
2012-01-06 07:36:22 C 07 32 03.79 +57 15 45.7 u H45
2012-01-06 07:40:22 C 07 32 04.29 +57 15 34.7 u H45
2012-01-06 07:40:57 C 07 32 03.37 +57 15 19.8 o H21
2012-01-06 07:43:51 C 07 32 03.73 +57 15 11.5 o H21
2012-01-06 07:46:54 C 07 32 04.12 +57 15 02.9 o H21
2012-01-06 07:49:17 C 07 32 05.33 +57 15 10.0 u H45
2012-01-06 07:49:49 C 07 32 04.50 +57 14 54.8 o 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)