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
2005-02-09 07:43:40 C 10 30 37.73 +14 50 06.6 c 691
2005-02-10 04:12:41 C 10 29 05.50 +14 53 58.0 o 084
2005-02-10 04:18:21 C 10 29 05.07 +14 53 59.1 o 084
2005-02-14 08:26:42 C 10 21 05.71 +15 13 27.0 18.4 c 704
2005-02-14 08:45:17 C 10 21 04.10 +15 13 29.8 18.8 c 704
2005-02-14 09:03:16 C 10 21 02.55 +15 13 33.2 18.6 c 704
2005-02-14 09:22:02 C 10 21 00.96 +15 13 37.0 18.5 c 704
2005-02-14 09:39:57 C 10 20 59.39 +15 13 40.3 18.6 c 704
2005-02-16 09:44:00 C 10 16 52.59 +15 22 52.9 o F65
2005-02-16 09:44:47 C 10 16 52.51 +15 22 53.1 o F65
2005-02-16 09:45:38 C 10 16 52.42 +15 22 53.3 o F65
2005-02-16 09:47:05 C 10 16 52.32 +15 22 53.5 o F65
2005-02-16 09:47:52 C 10 16 52.25 +15 22 53.7 o F65
2005-02-16 09:48:43 C 10 16 52.19 +15 22 53.8 o F65
2005-02-19 10:34:45 C 10 10 19.91 +15 36 18.0 o F65
2005-02-19 10:35:26 C 10 10 19.85 +15 36 18.0 o F65
2005-02-19 10:36:12 C 10 10 19.78 +15 36 18.2 o F65
2005-02-19 10:37:41 C 10 10 19.64 +15 36 18.3 o F65
2005-02-19 10:38:20 C 10 10 19.57 +15 36 18.5 o F65
2005-02-19 10:39:00 C 10 10 19.51 +15 36 18.8 o F65
2005-03-01 05:06:31 C 09 47 41.38 +16 10 56.8 c 691
2005-03-01 05:30:37 C 09 47 38.95 +16 10 59.6 c 691
2005-03-01 05:53:30 C 09 47 36.62 +16 11 02.1 c 691
2005-03-02 07:09:22 C 09 45 06.30 +16 13 39.3 r 703
2005-03-02 07:21:38 C 09 45 05.06 +16 13 40.2 r 703
2005-03-02 07:33:52 C 09 45 03.77 +16 13 41.2 r 703
2005-03-02 07:46:06 C 09 45 02.57 +16 13 42.7 r 703
2005-03-02 21:49:39 C 09 43 39.44 +16 15 01.3 c A41
2005-03-02 22:33:28 C 09 43 35.01 +16 15 05.8 c A41
2005-03-02 23:16:27 C 09 43 30.67 +16 15 09.0 c A41
2005-03-04 06:57:56 C 09 40 23.14 +16 17 52.8 17.7 c 704
2005-03-04 07:19:11 C 09 40 20.99 +16 17 54.5 18.4 c 704
2005-03-04 07:39:33 C 09 40 18.90 +16 17 56.6 18.1 c 704
2005-03-04 08:03:07 C 09 40 16.55 +16 17 57.7 19.3 c 704
2005-03-04 08:22:03 C 09 40 14.63 +16 17 59.8 18.3 c 704
2005-03-04 23:27:05 C 09 38 45.83 +16 19 02.1 o 084
2005-03-04 23:32:44 C 09 38 45.27 +16 19 02.4 o 084
2005-03-08 05:33:08 C 09 31 11.92 +16 23 14.9 18.6 c 704
2005-03-08 05:49:49 C 09 31 10.20 +16 23 16.9 19.0 c 704
2005-03-08 06:07:47 C 09 31 08.48 +16 23 16.6 18.8 c 704
2005-03-08 06:24:29 C 09 31 06.85 +16 23 16.8 18.8 c 704
2005-03-08 06:41:00 C 09 31 05.24 +16 23 17.7 18.7 c 704
2005-03-09 21:27:55 C 09 27 25.10 +16 24 11.0 o 084
2005-03-09 21:33:34 C 09 27 24.56 +16 24 11.2 o 084
2005-03-10 02:52:46 C 09 26 55.29 +16 24 19.6 o 699
2005-03-10 03:25:31 C 09 26 52.21 +16 24 19.9 o 699
2005-03-10 03:58:13 C 09 26 49.03 +16 24 20.8 o 699
2005-03-10 04:30:58 C 09 26 45.89 +16 24 21.3 o 699
2005-03-10 05:50:34 C 09 26 38.23 +16 24 21.9 r G96
2005-03-10 06:02:03 C 09 26 37.11 +16 24 22.1 r G96
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)