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
2012-01-05 08:03:22 C 07 27 51.09 +58 11 54.9 u H45
2012-01-05 08:06:23 C 07 27 51.37 +58 11 48.1 u H45
2012-01-05 08:10:23 C 07 27 51.84 +58 11 39.0 u H45
2012-01-05 08:13:23 C 07 27 52.18 +58 11 31.7 u H45
2012-01-05 08:18:23 C 07 27 52.76 +58 11 20.3 u H45
2012-01-05 08:23:23 C 07 27 53.22 +58 11 08.8 u H45
2012-01-05 08:25:54 C 07 27 53.49 +58 11 02.7 u H45
2012-01-05 08:29:23 C 07 27 53.94 +58 10 54.6 u H45
2012-01-05 08:31:12 C 07 27 54.15 +58 10 50.1 u H45
2012-01-05 08:44:32 C 07 27 55.64 +58 10 18.5 u H45
2012-01-05 08:51:14 C 07 27 56.39 +58 10 02.2 u H45
2012-01-05 08:54:46 C 07 27 56.75 +58 09 53.8 u H45
2012-01-05 08:58:32 C 07 27 57.26 +58 09 45.1 u H45
2012-01-05 09:01:46 C 07 27 57.53 +58 09 37.7 u H45
2012-01-05 09:04:25 C 07 27 57.91 +58 09 30.6 u H45
2012-01-05 09:07:23 C 07 27 58.20 +58 09 23.8 u H45
2012-01-05 09:12:23 C 07 27 58.87 +58 09 11.3 u H45
2012-01-05 09:14:02 C 07 27 59.07 +58 09 07.5 u H45
2012-01-05 09:20:03 C 07 27 59.73 +58 08 52.6 u H45
2012-01-05 09:23:23 C 07 28 00.16 +58 08 44.6 u H45
2012-01-05 09:26:28 C 07 28 00.52 +58 08 37.0 u H45
2012-01-05 09:30:23 C 07 28 00.96 +58 08 27.3 u H45
2012-01-05 09:33:23 C 07 28 01.35 +58 08 19.9 u H45
2012-01-05 09:40:22 C 07 28 02.21 +58 08 02.8 u H45
2012-01-05 09:43:22 C 07 28 02.53 +58 07 55.0 u H45
2012-01-05 09:47:22 C 07 28 03.03 +58 07 44.9 u H45
2012-01-05 09:50:23 C 07 28 03.43 +58 07 38.0 u H45
2012-01-05 09:52:23 C 07 28 03.70 +58 07 32.7 u H45
2012-01-05 09:55:14 C 07 28 04.03 +58 07 25.7 u H45
2012-01-05 09:58:23 C 07 28 04.44 +58 07 17.6 u H45
2012-01-05 10:02:23 C 07 28 04.96 +58 07 07.4 u H45
2012-01-05 10:05:23 C 07 28 05.36 +58 06 59.9 u H45
2012-01-05 10:08:23 C 07 28 05.67 +58 06 52.3 u H45
2012-01-05 10:10:21 C 07 28 05.99 +58 06 47.3 u H45
2012-01-05 10:17:23 C 07 28 06.87 +58 06 29.8 u H45
2012-01-05 10:20:23 C 07 28 07.30 +58 06 22.1 u H45
2012-01-05 10:24:23 C 07 28 07.84 +58 06 11.9 u H45
2012-01-05 10:27:23 C 07 28 08.23 +58 06 04.1 u H45
2012-01-05 10:30:23 C 07 28 08.62 +58 05 56.5 u H45
2012-01-05 10:34:32 C 07 28 09.21 +58 05 45.7 u H45
2012-01-05 10:37:22 C 07 28 09.57 +58 05 38.7 u H45
2012-01-05 11:35:03 C 07 28 44.89 +58 03 28.8 o 300
2012-01-05 11:35:44 C 07 28 45.00 +58 03 27.9 o 300
2012-01-05 11:36:23 C 07 28 45.03 +58 03 26.7 o 300
2012-01-05 11:37:03 C 07 28 45.08 +58 03 25.0 o 300
2012-01-05 16:08:26 C 07 29 32.20 +57 52 19.9 v C32
2012-01-05 16:13:54 C 07 29 33.22 +57 52 09.1 v C32
2012-01-05 16:19:08 C 07 29 34.00 +57 51 59.0 v C32
2012-01-06 02:15:09 C 07 31 23.16 +57 28 15.5 c H06
2012-01-06 02:18:52 C 07 31 23.84 +57 28 06.6 c H06
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)