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
2005-03-10 06:13:37 C 09 26 35.99 +16 24 22.2 r G96
2005-03-10 06:25:04 C 09 26 34.89 +16 24 22.5 r G96
2005-03-11 05:39:25 C 09 24 25.97 +16 24 31.3 18.3 c 704
2005-03-11 05:56:17 C 09 24 24.40 +16 24 31.2 18.9 c 704
2005-03-11 06:13:01 C 09 24 22.79 +16 24 30.9 18.7 c 704
2005-03-11 06:34:53 C 09 24 20.68 +16 24 30.7 18.7 c 704
2005-03-11 06:53:11 C 09 24 18.96 +16 24 30.2 18.5 c 704
2005-03-13 21:04:20 C 09 18 44.29 +16 23 27.8 r A30
2005-03-13 21:06:24 C 09 18 44.10 +16 23 27.8 r A30
2005-03-13 21:07:32 C 09 18 44.00 +16 23 27.7 r A30
2005-03-13 21:09:57 C 09 18 43.78 +16 23 27.6 r A30
2005-03-13 21:12:21 C 09 18 43.56 +16 23 27.7 r A30
2005-03-13 21:16:46 C 09 18 43.15 +16 23 27.4 r A30
2005-03-16 05:05:18 C 09 13 56.85 +16 20 59.9 r 703
2005-03-16 05:16:08 C 09 13 55.91 +16 20 59.6 r 703
2005-03-16 05:26:56 C 09 13 54.98 +16 20 58.4 r 703
2005-03-16 05:37:41 C 09 13 54.03 +16 20 57.7 r 703
2005-03-16 05:46:24 C 09 13 53.25 +16 20 56.2 r 703
2005-03-16 05:59:33 C 09 13 52.16 +16 20 56.2 r 703
2005-03-16 06:12:48 C 09 13 50.99 +16 20 55.5 r 703
2005-03-16 06:26:01 C 09 13 49.95 +16 20 54.9 r 703
2005-04-02 04:54:14 C 08 47 59.99 +15 21 22.9 r 703
2005-04-02 05:05:49 C 08 47 59.48 +15 21 20.6 r 703
2005-04-02 05:17:27 C 08 47 58.96 +15 21 17.3 r 703
2005-04-02 05:29:04 C 08 47 58.44 +15 21 14.7 r 703
2005-04-03 19:52:00 C 08 46 26.23 +15 12 25.8 c A41
2005-04-03 20:37:33 C 08 46 24.35 +15 12 15.4 c A41
2005-04-03 21:22:41 C 08 46 22.53 +15 12 05.4 c A41
2005-04-04 05:36:35 C 08 46 03.93 +15 10 09.5 18.2 c 704
2005-04-04 05:51:36 C 08 46 03.30 +15 10 04.9 18.7 c 704
2005-04-04 06:06:35 C 08 46 02.76 +15 10 01.9 18.8 c 704
2005-04-04 06:22:11 C 08 46 02.13 +15 09 58.4 18.8 c 704
2005-04-04 06:37:27 C 08 46 01.54 +15 09 55.4 18.4 c 704
2005-04-09 04:23:37 C 08 42 24.84 +14 39 48.9 r 703
2005-04-09 04:35:15 C 08 42 24.48 +14 39 45.7 r 703
2005-04-09 04:46:57 C 08 42 24.19 +14 39 41.9 r 703
2005-04-09 04:58:42 C 08 42 23.94 +14 39 38.8 r 703
2005-04-16 03:11:58 C 08 39 42.96 +13 50 37.9 r 703
2005-04-16 03:25:05 C 08 39 42.81 +13 50 33.9 r 703
2005-04-16 03:38:08 C 08 39 42.70 +13 50 29.7 r 703
2005-04-16 03:51:15 C 08 39 42.52 +13 50 24.8 r 703
2005-05-03 03:59:04 C 08 43 22.02 +11 21 09.1 r 703
2005-05-03 04:10:45 C 08 43 22.20 +11 21 03.1 r 703
2005-05-03 04:22:27 C 08 43 22.54 +11 20 59.2 r 703
2005-05-03 04:34:01 C 08 43 22.75 +11 20 53.9 r 703
2005-05-10 03:26:14 C 08 48 18.25 +10 08 12.8 r 703
2005-05-10 03:36:50 C 08 48 18.57 +10 08 08.4 r 703
2005-05-10 03:44:29 C 08 48 18.93 +10 08 04.8 r 703
2005-05-10 03:52:11 C 08 48 19.08 +10 08 02.8 r 703
2005-05-12 03:21:43 C 08 50 01.42 +09 46 00.7 18.9 c 704
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)