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
2011-03-24 22:13:01 C 09 48 00.61 +05 43 24.0 u 160
2011-03-25 21:48:51 C 09 45 12.79 +05 41 18.0 c A24
2011-03-25 21:49:53 C 09 45 12.62 +05 41 17.6 c A24
2011-03-25 22:08:11 C 09 45 10.43 +05 41 15.8 c A24
2011-03-25 22:27:30 C 09 45 08.08 +05 41 14.1 c A24
2011-03-25 22:45:47 C 09 45 05.87 +05 41 12.2 c A24
2011-03-25 22:46:50 C 09 45 05.75 +05 41 12.4 c A24
2011-03-26 02:46:26 C 09 44 38.43 +05 40 53.2 r 703
2011-03-26 02:54:36 C 09 44 37.42 +05 40 52.2 r 703
2011-03-26 03:02:51 C 09 44 36.42 +05 40 51.5 r 703
2011-03-26 03:11:06 C 09 44 35.41 +05 40 50.6 r 703
2011-03-26 06:06:33 C 09 44 14.07 +05 40 33.9 17.1 c 704
2011-03-26 06:26:05 C 09 44 11.67 +05 40 31.6 17.4 c 704
2011-03-26 06:46:06 C 09 44 09.25 +05 40 29.6 17.1 c 704
2011-03-26 07:06:01 C 09 44 06.86 +05 40 26.9 17.3 c 704
2011-03-26 07:26:22 C 09 44 04.42 +05 40 25.0 17.4 c 704
2011-03-29 20:12:34 C 09 34 22.99 +05 30 48.6 c A53
2011-03-29 20:27:58 C 09 34 21.19 +05 30 47.7 c A53
2011-03-29 20:40:56 C 09 34 19.73 +05 30 45.6 c A53
2011-03-30 21:54:48 C 09 31 32.77 +05 27 22.5 c A24
2011-03-30 21:55:51 C 09 31 32.57 +05 27 22.9 c A24
2011-03-31 19:57:27 C 09 29 10.44 +05 24 15.1 u J28
2011-03-31 20:05:43 C 09 29 09.53 +05 24 13.6 u J28
2011-03-31 20:13:38 C 09 29 08.70 +05 24 12.5 u J28
2011-03-31 21:51:52 C 09 28 57.63 +05 23 55.8 c A24
2011-03-31 21:52:54 C 09 28 57.51 +05 23 55.8 c A24
2011-03-31 22:11:14 C 09 28 55.50 +05 23 52.9 c A24
2011-03-31 22:30:36 C 09 28 53.40 +05 23 50.0 c A24
2011-03-31 22:48:57 C 09 28 51.35 +05 23 46.8 c A24
2011-03-31 22:49:59 C 09 28 51.26 +05 23 46.9 c A24
2011-04-01 21:27:42 C 09 26 28.01 +05 20 19.0 c A24
2011-04-01 21:28:44 C 09 26 27.88 +05 20 18.5 c A24
2011-04-01 21:47:07 C 09 26 25.91 +05 20 15.7 c A24
2011-04-01 22:06:31 C 09 26 23.81 +05 20 12.7 c A24
2011-04-01 22:24:53 C 09 26 21.84 +05 20 09.5 c A24
2011-04-01 22:25:55 C 09 26 21.72 +05 20 09.9 c A24
2011-04-02 20:51:17 C 09 24 02.91 +05 16 30.9 c A24
2011-04-02 20:52:19 C 09 24 02.80 +05 16 30.6 c A24
2011-04-02 21:11:11 C 09 24 00.81 +05 16 27.5 c A24
2011-04-02 21:30:44 C 09 23 58.76 +05 16 24.4 c A24
2011-04-02 21:49:57 C 09 23 56.72 +05 16 21.0 c A24
2011-04-02 21:51:00 C 09 23 56.62 +05 16 20.9 c A24
2011-04-05 19:20:53 C 09 17 06.05 +05 03 43.7 a 233
2011-04-05 19:26:15 C 09 17 05.51 +05 03 43.0 a 233
2011-04-05 19:30:52 C 09 17 05.06 +05 03 42.1 a 233
2011-04-05 20:34:08 C 09 16 58.88 +05 03 29.7 c A24
2011-04-05 20:35:10 C 09 16 58.79 +05 03 29.2 c A24
2011-04-05 20:56:57 C 09 16 56.64 +05 03 25.1 c A24
2011-04-05 21:19:47 C 09 16 54.41 +05 03 20.6 c A24
2011-04-05 21:41:36 C 09 16 52.28 +05 03 16.5 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)