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
2009-02-28 00:24:59 C 10 30 35.12 +10 01 18.2 c A24
2009-02-28 00:44:27 C 10 30 33.07 +10 01 20.3 c A24
2009-02-28 01:05:19 C 10 30 30.90 +10 01 22.4 c A24
2009-02-28 01:24:47 C 10 30 28.85 +10 01 24.6 c A24
2009-02-28 01:26:13 C 10 30 28.70 +10 01 24.6 c A24
2009-03-01 06:16:50 C 10 27 31.23 +10 04 33.0 17.6 c 704
2009-03-01 06:33:06 C 10 27 29.47 +10 04 34.3 17.8 c 704
2009-03-01 06:49:20 C 10 27 27.73 +10 04 36.0 17.7 c 704
2009-03-01 07:05:30 C 10 27 25.97 +10 04 38.1 17.8 c 704
2009-03-01 07:21:31 C 10 27 24.30 +10 04 39.6 17.6 c 704
2009-03-02 06:37:35 C 10 24 58.39 +10 07 03.8 17.3 c 704
2009-03-02 06:54:22 C 10 24 56.58 +10 07 05.8 17.6 c 704
2009-03-02 07:11:14 C 10 24 54.76 +10 07 07.4 17.5 c 704
2009-03-02 07:28:36 C 10 24 52.86 +10 07 09.0 17.5 c 704
2009-03-02 07:46:02 C 10 24 50.96 +10 07 10.8 17.5 c 704
2009-03-03 03:41:04 C 10 22 45.17 +10 09 08.6 o 691
2009-03-03 04:06:28 C 10 22 42.42 +10 09 11.4 o 691
2009-03-03 04:31:51 C 10 22 39.65 +10 09 14.0 o 691
2009-03-15 05:06:13 C 09 50 52.47 +10 26 01.3 r 703
2009-03-15 05:14:08 C 09 50 51.57 +10 26 01.6 r 703
2009-03-15 05:21:50 C 09 50 50.71 +10 26 01.9 r 703
2009-03-15 05:29:47 C 09 50 49.81 +10 26 02.1 r 703
2009-03-17 00:22:00 C 09 46 08.83 +10 25 57.7 r A13
2009-03-17 00:49:33 C 09 46 05.79 +10 25 57.3 r A13
2009-03-17 04:05:32 C 09 45 45.43 +10 25 59.1 r 703
2009-03-17 04:12:17 C 09 45 44.67 +10 25 59.4 r 703
2009-03-17 04:19:12 C 09 45 43.88 +10 25 58.9 r 703
2009-03-17 04:26:07 C 09 45 43.12 +10 25 58.8 r 703
2009-03-18 05:31:35 C 09 43 01.14 +10 25 34.6 17.6 c 704
2009-03-18 05:49:03 C 09 42 59.23 +10 25 34.4 17.8 c 704
2009-03-18 06:06:47 C 09 42 57.27 +10 25 34.1 17.8 c 704
2009-03-18 06:24:33 C 09 42 55.29 +10 25 33.5 17.9 c 704
2009-03-20 05:00:06 C 09 38 00.66 +10 24 05.4 17.4 c 704
2009-03-20 05:16:33 C 09 37 58.89 +10 24 04.5 17.8 c 704
2009-03-20 05:33:03 C 09 37 57.11 +10 24 03.8 17.6 c 704
2009-03-20 05:49:35 C 09 37 55.31 +10 24 03.5 17.9 c 704
2009-03-20 06:06:16 C 09 37 53.53 +10 24 02.4 17.9 c 704
2009-03-20 16:51:29 C 09 36 47.01 +10 23 28.4 r 168
2009-03-20 16:53:20 C 09 36 46.84 +10 23 28.3 r 168
2009-03-20 16:55:10 C 09 36 46.59 +10 23 28.3 r 168
2009-03-20 16:57:00 C 09 36 46.41 +10 23 29.0 r 168
2009-03-20 17:00:41 C 09 36 46.06 +10 23 28.7 r 168
2009-03-20 18:04:50 C 09 36 39.24 +10 23 25.6 r 168
2009-03-20 18:06:43 C 09 36 39.04 +10 23 25.0 r 168
2009-03-20 18:08:40 C 09 36 38.84 +10 23 25.0 r 168
2009-03-20 18:12:19 C 09 36 38.49 +10 23 25.0 r 168
2009-03-20 18:14:45 C 09 36 38.19 +10 23 24.8 r 168
2009-03-20 18:17:05 C 09 36 37.99 +10 23 24.6 r 168
2009-03-20 18:19:15 C 09 36 37.72 +10 23 24.5 r 168
2009-03-20 20:09:29 C 09 36 26.14 +10 23 18.9 r 168
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)