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
2012-01-11 22:42:26 C 08 10 04.58 +44 18 08.1 c A24
2012-01-12 00:21:12 C 08 10 36.30 +43 58 57.4 u 160
2012-01-12 00:24:01 C 08 10 37.24 +43 58 23.6 u 160
2012-01-12 00:27:06 C 08 10 38.25 +43 57 46.3 u 160
2012-01-12 22:45:02 C 08 20 51.19 +38 39 44.3 u J95
2012-01-12 22:50:14 C 08 20 53.32 +38 38 18.6 u J95
2012-01-12 22:53:51 C 08 20 54.80 +38 37 19.4 u J95
2012-01-12 22:56:21 C 08 20 55.83 +38 36 38.8 u J95
2012-01-12 23:06:38 C 08 20 57.61 +38 34 34.4 c A24
2012-01-12 23:07:01 C 08 20 57.76 +38 34 28.5 c A24
2012-01-12 23:07:45 C 08 20 58.06 +38 34 15.7 c A24
2012-01-12 23:08:30 C 08 20 58.36 +38 34 03.3 c A24
2012-01-12 23:36:30 C 08 21 09.41 +38 26 14.5 c A24
2012-01-12 23:37:14 C 08 21 09.70 +38 26 02.1 c A24
2012-01-12 23:37:59 C 08 21 10.02 +38 25 49.5 c A24
2012-01-13 21:39:35 C 08 32 58.90 +30 57 10.4 c A24
2012-01-13 21:40:20 C 08 32 59.27 +30 56 52.9 c A24
2012-01-13 21:41:04 C 08 32 59.62 +30 56 35.0 c A24
2012-01-13 22:03:49 C 08 33 12.28 +30 46 12.7 o J16
2012-01-13 22:04:52 C 08 33 12.81 +30 45 47.6 o J16
2012-01-13 22:06:01 C 08 33 13.42 +30 45 20.0 o J16
2012-01-13 22:07:08 C 08 33 14.00 +30 44 53.2 o J16
2012-01-13 22:08:12 C 08 33 14.55 +30 44 27.5 o J16
2012-01-13 22:09:23 C 08 33 15.16 +30 43 59.5 o J16
2012-01-13 23:11:06 C 08 33 46.13 +30 19 27.3 u J95
2012-01-13 23:13:56 C 08 33 47.54 +30 18 18.0 u J95
2012-01-13 23:16:48 C 08 33 48.97 +30 17 07.5 u J95
2012-01-14 07:36:34 C 08 38 34.56 +26 37 38.2 u H45
2012-01-14 07:37:04 C 08 38 34.80 +26 37 24.4 u H45
2012-01-14 07:38:05 C 08 38 35.30 +26 36 55.5 u H45
2012-01-14 07:38:42 C 08 38 35.60 +26 36 37.9 u H45
2012-01-14 07:39:42 C 08 38 36.06 +26 36 09.7 u H45
2012-01-14 07:40:20 C 08 38 36.39 +26 35 51.4 u H45
2012-01-14 07:41:23 C 08 38 36.91 +26 35 21.4 u H45
2012-01-14 07:43:06 C 08 38 37.75 +26 34 32.0 u H45
2012-01-14 07:44:23 C 08 38 38.40 +26 33 54.5 u H45
2012-01-14 07:45:33 C 08 38 38.96 +26 33 21.6 u H45
2012-01-14 08:07:41 C 08 38 49.90 +26 22 45.0 u H45
2012-01-14 08:08:34 C 08 38 50.33 +26 22 19.2 u H45
2012-01-14 08:09:40 C 08 38 50.86 +26 21 48.0 u H45
2012-01-14 08:11:07 C 08 38 51.58 +26 21 05.5 u H45
2012-01-14 08:12:35 C 08 38 52.30 +26 20 23.0 u H45
2012-01-14 08:14:47 C 08 38 53.40 +26 19 19.8 u H45
2012-01-14 08:17:00 C 08 38 54.49 +26 18 16.0 u H45
2012-01-14 08:18:03 C 08 38 55.01 +26 17 45.3 u H45
2012-01-14 08:19:35 C 08 38 55.78 +26 17 00.0 u H45
2012-01-14 08:41:14 C 08 39 04.96 +26 05 49.0 r H21
2012-01-14 08:43:25 C 08 39 06.14 +26 04 45.2 r H21
2012-01-14 08:45:53 C 08 39 07.41 +26 03 33.0 r H21
2012-01-14 09:45:05 C 08 39 39.30 +25 35 00.4 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)