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
2012-01-03 22:19:44 C 07 22 52.98 +59 14 52.5 o J13
2012-01-03 22:20:27 C 07 22 53.05 +59 14 51.9 o J13
2012-01-03 22:21:08 C 07 22 53.17 +59 14 50.7 o J13
2012-01-03 22:30:54 C 07 22 49.19 +59 14 34.2 u B49
2012-01-03 22:35:49 C 07 22 49.67 +59 14 27.2 u B49
2012-01-03 22:41:13 C 07 22 50.22 +59 14 19.7 u B49
2012-01-04 07:30:43 C 07 23 59.78 +58 59 43.3 u H45
2012-01-04 07:33:41 C 07 24 00.01 +58 59 37.8 u H45
2012-01-04 07:36:03 C 07 24 00.25 +58 59 33.7 u H45
2012-01-04 07:37:46 C 07 24 00.53 +58 59 30.1 u H45
2012-01-04 07:40:05 C 07 24 00.58 +58 59 25.9 u H45
2012-01-04 07:42:27 C 07 24 00.82 +58 59 21.0 u H45
2012-01-04 07:44:27 C 07 24 01.07 +58 59 17.5 u H45
2012-01-04 07:47:28 C 07 24 01.34 +58 59 11.8 u H45
2012-01-04 07:49:24 C 07 24 01.48 +58 59 08.4 u H45
2012-01-04 07:51:27 C 07 24 01.70 +58 59 04.4 u H45
2012-01-04 07:54:27 C 07 24 01.95 +58 58 58.6 u H45
2012-01-04 07:57:29 C 07 24 02.27 +58 58 52.7 u H45
2012-01-04 08:05:28 C 07 24 03.03 +58 58 38.0 u H45
2012-01-04 08:08:27 C 07 24 03.27 +58 58 32.1 u H45
2012-01-04 08:11:27 C 07 24 03.56 +58 58 26.8 u H45
2012-01-04 08:14:27 C 07 24 03.84 +58 58 20.9 u H45
2012-01-04 08:17:27 C 07 24 04.11 +58 58 15.3 u H45
2012-01-04 08:21:12 C 07 24 04.52 +58 58 07.6 u H45
2012-01-04 08:24:27 C 07 24 04.76 +58 58 01.6 u H45
2012-01-04 08:27:27 C 07 24 05.05 +58 57 55.8 u H45
2012-01-04 08:30:27 C 07 24 05.38 +58 57 50.0 u H45
2012-01-04 08:43:27 C 07 24 06.64 +58 57 24.2 u H45
2012-01-04 08:46:27 C 07 24 06.93 +58 57 18.2 u H45
2012-01-04 08:50:04 C 07 24 07.28 +58 57 11.3 u H45
2012-01-04 08:53:29 C 07 24 07.63 +58 57 04.9 u H45
2012-01-04 09:01:31 C 07 24 08.45 +58 56 48.8 u H45
2012-01-04 09:24:01 C 07 24 10.69 +58 56 03.0 u H45
2012-01-04 09:32:20 C 07 24 11.57 +58 55 46.2 u H45
2012-01-04 09:37:57 C 07 24 12.20 +58 55 34.3 u H45
2012-01-04 09:42:27 C 07 24 12.67 +58 55 25.6 u H45
2012-01-04 09:46:46 C 07 24 13.22 +58 55 16.0 u H45
2012-01-04 09:49:27 C 07 24 13.41 +58 55 10.6 u H45
2012-01-04 09:52:28 C 07 24 13.77 +58 55 04.5 u H45
2012-01-04 09:56:28 C 07 24 14.20 +58 54 55.9 u H45
2012-01-04 10:01:08 C 07 24 14.74 +58 54 46.2 u H45
2012-01-04 23:13:48 C 07 26 24.32 +58 29 54.0 v C32
2012-01-04 23:18:24 C 07 26 24.84 +58 29 44.2 v C32
2012-01-04 23:22:53 C 07 26 25.31 +58 29 34.5 v C32
2012-01-04 23:27:20 C 07 26 25.81 +58 29 24.9 v C32
2012-01-05 07:34:36 C 07 27 48.01 +58 13 00.5 u H45
2012-01-05 07:36:13 C 07 27 48.23 +58 12 56.9 u H45
2012-01-05 07:40:18 C 07 27 48.60 +58 12 47.8 u H45
2012-01-05 07:54:24 C 07 27 50.10 +58 12 15.6 u H45
2012-01-05 07:59:16 C 07 27 50.67 +58 12 04.6 u H45
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)