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
2003-11-03 19:24:27 C 23 47 54.85 +30 19 29.6 r 557
2003-11-03 20:32:28 C 23 47 57.36 +30 18 39.1 r 557
2003-11-03 22:20:20 C 23 48 01.44 +30 17 18.0 r 557
2003-11-03 23:18:10 C 23 48 03.68 +30 16 34.1 r 557
2003-11-04 00:08:57 C 23 48 05.65 +30 15 55.7 r 557
2003-11-04 19:46:31 C 23 48 56.04 +30 01 44.4 r 185
2003-11-04 19:53:42 C 23 48 56.36 +30 01 38.6 r 185
2003-11-04 19:59:20 C 23 48 56.53 +30 01 34.9 r 185
2003-11-04 20:02:23 C 23 48 56.60 +30 01 33.8 c 434
2003-11-04 20:05:28 C 23 48 56.71 +30 01 31.4 c 434
2003-11-04 20:06:24 C 23 48 56.80 +30 01 29.4 r 185
2003-11-04 20:07:58 C 23 48 56.76 +30 01 30.1 c 434
2003-11-04 20:09:35 C 23 48 56.91 +30 01 27.9 r 185
2003-11-07 20:36:28 C 23 52 03.70 +29 12 21.6 o 084
2003-11-12 19:17:45 C 23 57 27.42 +28 02 58.2 c 113
2003-11-12 19:19:50 C 23 57 27.51 +28 02 56.8 c 113
2003-11-12 19:21:56 C 23 57 27.57 +28 02 55.9 c 113
2003-11-13 17:22:35 C 23 58 30.24 +27 51 23.9 r 185
2003-11-13 17:45:59 C 23 58 31.24 +27 51 12.3 r 185
2003-11-13 17:49:11 C 23 58 31.40 +27 51 10.8 r 185
2003-11-13 18:20:31 C 23 58 32.70 +27 50 55.1 r 185
2003-11-17 20:02:18 C 00 03 16.57 +27 04 26.3 r 170
2003-11-17 20:03:32 C 00 03 16.63 +27 04 25.9 r 170
2003-11-17 20:07:13 C 00 03 16.82 +27 04 23.9 r 170
2003-11-18 01:59:21 C 00 03 34.73 +27 01 51.4 17.8 c 644
2003-11-18 02:29:12 C 00 03 36.10 +27 01 38.6 18.5 c 644
2003-11-18 02:58:47 C 00 03 37.47 +27 01 26.1 17.4 c 644
2003-11-19 01:56:08 C 00 04 46.54 +26 51 38.5 17.5 c 644
2003-11-19 02:25:48 C 00 04 47.91 +26 51 26.3 17.7 c 644
2003-11-19 02:56:51 C 00 04 49.38 +26 51 13.6 18.4 c 644
2003-11-21 04:57:18 C 00 07 21.26 +26 31 11.6 18.3 c 704
2003-11-21 05:25:47 C 00 07 22.70 +26 30 59.8 19.1 c 704
2003-11-21 05:45:55 C 00 07 23.61 +26 30 52.2 18.9 c 704
2003-11-21 06:13:45 C 00 07 24.99 +26 30 40.5 19.4 c 704
2003-11-21 06:41:35 C 00 07 26.56 +26 30 32.8 18.8 c 704
2003-11-24 01:38:08 C 00 10 56.76 +26 06 23.1 18.6 c 704
2003-11-24 01:49:41 C 00 10 57.32 +26 06 19.7 18.8 c 704
2003-11-24 02:02:11 C 00 10 57.95 +26 06 15.3 19.4 c 704
2003-11-24 02:15:18 C 00 10 58.60 +26 06 10.6 18.7 c 704
2003-11-24 02:29:46 C 00 10 59.33 +26 06 06.2 18.5 c 704
2005-02-02 09:40:52 C 10 41 34.42 +14 20 00.3 r 703
2005-02-02 09:53:14 C 10 41 33.74 +14 20 03.2 r 703
2005-02-02 10:05:32 C 10 41 32.75 +14 20 07.4 r 703
2005-02-03 08:46:43 C 10 40 12.78 +14 23 57.4 18.5 c 704
2005-02-03 09:05:13 C 10 40 11.64 +14 24 00.3 18.6 c 704
2005-02-03 09:23:38 C 10 40 10.49 +14 24 03.2 18.7 c 704
2005-02-03 09:42:11 C 10 40 09.29 +14 24 06.8 18.6 c 704
2005-02-03 10:01:35 C 10 40 08.08 +14 24 09.9 18.7 c 704
2005-02-09 06:25:50 C 10 30 43.64 +14 49 51.3 c 691
2005-02-09 07:07:17 C 10 30 40.51 +14 49 59.5 c 691
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)