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
2005-11-06 19:06:19 C 00 39 42.61 +35 18 36.7 c A65
2005-11-06 19:14:19 C 00 39 42.45 +35 18 29.9 c A65
2005-11-06 19:19:45 C 00 39 42.34 +35 18 24.9 c A65
2005-11-10 03:49:13 C 00 38 44.84 +34 07 34.6 r 703
2005-11-10 03:59:04 C 00 38 44.73 +34 07 26.1 r 703
2005-11-10 04:08:53 C 00 38 44.59 +34 07 18.0 r 703
2005-11-10 04:18:47 C 00 38 44.48 +34 07 09.4 r 703
2005-11-18 19:28:45 C 00 39 30.86 +31 32 25.2 c 434
2005-11-18 19:31:06 C 00 39 30.90 +31 32 24.1 c 434
2005-11-18 19:33:07 C 00 39 30.90 +31 32 22.8 c 434
2005-11-21 03:40:07 C 00 40 22.69 +30 56 58.5 o 644
2005-11-21 03:42:17 C 00 40 22.70 +30 56 57.2 o 644
2005-11-21 03:54:17 C 00 40 22.80 +30 56 49.3 r 703
2005-11-21 04:03:44 C 00 40 22.87 +30 56 43.8 r 703
2005-11-21 04:10:27 C 00 40 23.11 +30 56 39.9 o 644
2005-11-21 04:13:09 C 00 40 23.05 +30 56 38.6 r 703
2005-11-21 04:14:54 C 00 40 23.16 +30 56 37.3 o 644
2005-11-21 04:22:31 C 00 40 23.16 +30 56 32.4 r 703
2005-11-21 04:43:07 C 00 40 23.57 +30 56 20.2 o 644
2005-11-21 04:45:18 C 00 40 23.59 +30 56 18.7 o 644
2005-12-25 04:38:21 C 01 12 02.70 +26 23 32.5 r 703
2005-12-25 04:49:33 C 01 12 03.20 +26 23 29.6 r 703
2005-12-25 05:00:35 C 01 12 03.85 +26 23 27.6 r 703
2005-12-25 05:11:38 C 01 12 04.46 +26 23 28.4 r 703
2007-01-23 09:09:02 C 11 06 46.76 +11 35 52.9 o 699
2007-01-23 09:45:55 C 11 06 45.73 +11 35 54.5 o 699
2007-01-23 10:22:51 C 11 06 44.68 +11 35 55.0 o 699
2007-01-23 10:59:44 C 11 06 43.70 +11 35 57.0 o 699
2007-01-23 18:38:50 C 11 06 31.92 +11 36 24.1 c 322
2007-01-23 19:03:11 C 11 06 31.15 +11 36 25.4 c 322
2007-01-23 19:34:45 C 11 06 30.31 +11 36 26.3 c 322
2007-01-24 07:57:59 C 11 06 10.40 +11 36 49.7 18.8 c 704
2007-01-24 08:22:31 C 11 06 09.68 +11 36 50.8 19.3 c 704
2007-01-24 08:43:17 C 11 06 09.08 +11 36 51.7 19.1 c 704
2007-01-24 09:04:14 C 11 06 08.47 +11 36 53.0 19.4 c 704
2007-01-24 09:26:02 C 11 06 07.80 +11 36 53.9 19.2 c 704
2007-01-30 22:24:44 C 11 00 37.41 +11 47 39.8 r A13
2007-01-30 22:54:13 C 11 00 36.11 +11 47 42.4 r A13
2007-02-08 06:07:44 C 10 50 05.89 +12 10 57.0 r 703
2007-02-08 06:17:57 C 10 50 05.38 +12 10 58.1 r 703
2007-02-08 06:28:10 C 10 50 04.59 +12 11 00.9 r 703
2007-02-08 06:38:32 C 10 50 03.98 +12 11 01.2 r 703
2007-02-08 07:15:39 C 10 50 01.56 +12 11 07.3 o 691
2007-02-08 07:41:07 C 10 49 59.89 +12 11 11.1 o 691
2007-02-08 08:06:36 C 10 49 58.23 +12 11 14.6 o 691
2007-02-11 10:02:47 C 10 45 01.02 +12 22 02.4 r H45
2007-02-11 10:04:11 C 10 45 00.92 +12 22 03.0 r H45
2007-02-11 10:06:29 C 10 45 00.76 +12 22 03.3 r H45
2007-02-11 10:18:48 C 10 44 59.85 +12 22 05.1 r H45
2007-02-11 10:20:07 C 10 44 59.76 +12 22 05.3 r H45
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)