22771 (1999 CU3)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5242253236 ± 2.00e+00
Semi-major axis (a)1.5758804334 AU ± 3.00e+00
Inclination (i)11.40259721° ± 4.00e+00
Long. of Asc. Node (Ω)338.90098952° ± 5.00e+00
Arg. of Perihelion (ω)305.84219851° ± 6.00e+00
Mean Anomaly (M)96.21237716° ± 6.31e-05
Mean Motion (n)0.4982271401°/day ± 1.42e+00
Perihelion dist (q)0.74976400 AU ± 3.46e+00
Aphelion dist (Q)2.40199686 AU ± 5.55e+00
Orbital Period1.97826695 yr ± 5.65e+00
NGA Modelr2
A2-1.41471470e-06 AU/d²
Physical Parameters
H (abs. magnitude)16.96
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.240″
Uncertainty0
Orbit TypeApollo
MOID0.064295 AU
Observations Used2581
Gaia Obs Used92
Oppositions9
Arc Total1999-2026
First Observation Used1999-02-10
Last Observation Used2026-01-07
Observations (2691)
Date Type RA Dec Mag Band Observatory
2007-03-08 06:51:10 C 09 49 30.53 +13 44 49.3 r H45
2007-03-08 06:52:53 C 09 49 30.36 +13 44 49.3 r H45
2007-03-08 06:55:53 C 09 49 30.06 +13 44 49.3 r H45
2007-03-08 06:58:15 C 09 49 29.76 +13 44 49.4 r H45
2007-03-08 06:59:51 C 09 49 29.62 +13 44 49.4 r H45
2007-03-09 02:55:52 C 09 47 26.76 +13 46 04.5 o 691
2007-03-09 03:20:12 C 09 47 24.20 +13 46 06.1 o 691
2007-03-09 03:44:30 C 09 47 21.62 +13 46 07.8 o 691
2007-03-09 04:43:12 C 09 47 15.36 +13 46 11.3 r 703
2007-03-09 04:54:52 C 09 47 14.13 +13 46 12.2 r 703
2007-03-09 05:06:34 C 09 47 12.87 +13 46 12.7 r 703
2007-03-09 05:18:16 C 09 47 11.72 +13 46 13.4 r 703
2007-03-10 22:21:22 C 09 42 58.46 +13 48 10.5 c A24
2007-03-10 22:22:49 C 09 42 58.26 +13 48 10.6 c A24
2007-03-10 23:02:22 C 09 42 54.16 +13 48 11.9 c A24
2007-03-10 23:03:49 C 09 42 54.00 +13 48 12.3 c A24
2007-03-11 02:50:02 C 09 42 31.58 +13 48 22.6 o 691
2007-03-11 03:09:32 C 09 42 29.55 +13 48 23.4 o 691
2007-03-11 03:29:03 C 09 42 27.51 +13 48 24.3 o 691
2007-03-11 23:13:24 C 09 40 26.44 +13 49 00.6 c A24
2007-03-11 23:14:50 C 09 40 26.31 +13 49 00.5 c A24
2007-03-11 23:54:03 C 09 40 22.29 +13 49 02.0 c A24
2007-03-11 23:55:29 C 09 40 22.12 +13 49 00.4 c A24
2007-03-12 00:32:23 C 09 40 18.26 +13 49 02.9 c A24
2007-03-12 00:33:50 C 09 40 18.09 +13 49 02.3 c A24
2007-03-12 21:41:07 C 09 38 10.81 +13 49 32.8 c A24
2007-03-12 22:00:40 C 09 38 08.79 +13 49 33.0 c A24
2007-03-12 22:16:32 C 09 38 07.17 +13 49 33.1 c A24
2007-03-12 22:32:18 C 09 38 05.55 +13 49 33.8 c A24
2007-03-12 22:49:53 C 09 38 03.74 +13 49 34.0 c A24
2007-03-12 23:04:10 C 09 38 02.25 +13 49 34.0 c A24
2007-03-12 23:05:36 C 09 38 02.12 +13 49 34.2 c A24
2007-03-12 23:17:04 C 09 38 00.94 +13 49 34.2 c A24
2007-03-12 23:29:58 C 09 37 59.61 +13 49 34.3 c A24
2007-03-12 23:41:26 C 09 37 58.43 +13 49 34.3 c A24
2007-03-12 23:42:52 C 09 37 58.27 +13 49 34.4 c A24
2007-03-12 23:54:22 C 09 37 57.10 +13 49 34.6 c A24
2007-03-13 00:07:18 C 09 37 55.78 +13 49 34.7 c A24
2007-03-13 00:18:47 C 09 37 54.59 +13 49 34.9 c A24
2007-03-13 00:20:13 C 09 37 54.47 +13 49 34.9 c A24
2007-03-13 00:31:47 C 09 37 53.26 +13 49 35.2 c A24
2007-03-13 00:49:53 C 09 37 51.40 +13 49 35.4 c A24
2007-03-13 01:08:11 C 09 37 49.52 +13 49 35.8 c A24
2007-03-13 01:27:17 C 09 37 47.54 +13 49 35.9 c A24
2007-03-13 21:54:29 C 09 35 45.68 +13 49 51.1 c A24
2007-03-13 22:09:50 C 09 35 44.11 +13 49 51.2 c A24
2007-03-13 22:40:54 C 09 35 40.96 +13 49 51.3 c A24
2007-03-13 22:56:52 C 09 35 39.33 +13 49 51.5 c A24
2007-03-13 23:11:06 C 09 35 37.90 +13 49 51.5 c A24
2007-03-13 23:12:33 C 09 35 37.73 +13 49 51.7 c A24
Radar Observations (6)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2001-09-25 20:29:00 -7944.261 1 Hz 2380 -1 -1
2001-09-25 20:58:00 113734203 8 us 2380 -1 -1
2001-09-25 21:33:00 113743141.8 1 us 2380 -1 -1
2003-09-10 17:58:00 89312736.8 4 us 2380 -1 -1
2003-09-11 17:49:00 83379287.1 1 us 2380 -1 -1
2003-09-12 18:02:00 77998936.49 1 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)