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
2007-02-13 06:58:29 C 10 41 45.14 +12 29 01.6 18.5 c 704
2007-02-13 07:15:53 C 10 41 43.86 +12 29 05.7 18.5 c 704
2007-02-13 07:33:02 C 10 41 42.55 +12 29 07.5 18.5 c 704
2007-02-13 21:24:46 C 10 40 39.67 +12 31 17.5 c A94
2007-02-13 21:29:56 C 10 40 39.20 +12 31 18.2 c A94
2007-02-13 21:35:06 C 10 40 38.85 +12 31 19.0 c A94
2007-02-15 07:16:51 C 10 38 00.71 +12 36 46.3 r 683
2007-02-15 07:36:33 C 10 37 59.15 +12 36 48.6 r 683
2007-02-15 07:56:16 C 10 37 57.51 +12 36 54.6 r 683
2007-02-15 10:56:56 C 10 37 42.56 +12 37 22.4 o 644
2007-02-15 11:27:59 C 10 37 40.02 +12 37 27.4 o 644
2007-02-15 11:57:24 C 10 37 37.59 +12 37 32.0 o 644
2007-02-16 07:11:00 C 10 36 04.66 +12 40 40.9 r 683
2007-02-16 07:30:43 C 10 36 03.10 +12 40 42.7 r 683
2007-02-16 07:50:26 C 10 36 01.33 +12 40 46.5 r 683
2007-02-17 07:05:05 C 10 34 05.66 +12 44 36.3 r 683
2007-02-17 07:24:48 C 10 34 04.01 +12 44 38.5 r 683
2007-02-17 07:44:30 C 10 34 02.16 +12 44 43.3 r 683
2007-02-17 11:45:01 C 10 33 41.40 +12 45 21.9 o 644
2007-02-17 11:46:44 C 10 33 41.26 +12 45 22.0 o 644
2007-02-17 12:16:00 C 10 33 38.73 +12 45 26.5 o 644
2007-02-17 12:19:26 C 10 33 38.43 +12 45 27.1 o 644
2007-02-17 12:50:30 C 10 33 35.74 +12 45 32.4 o 644
2007-02-17 12:52:14 C 10 33 35.60 +12 45 32.6 o 644
2007-02-18 06:46:49 C 10 32 04.64 +12 48 30.5 17.6 c 704
2007-02-18 07:03:51 C 10 32 03.15 +12 48 33.4 17.8 c 704
2007-02-18 07:20:52 C 10 32 01.64 +12 48 36.3 18.0 c 704
2007-02-18 07:37:52 C 10 32 00.10 +12 48 39.3 17.7 c 704
2007-02-18 07:54:49 C 10 31 58.59 +12 48 42.3 18.0 c 704
2007-02-19 19:24:32 C 10 28 52.26 +12 54 27.4 r 185
2007-02-19 20:03:51 C 10 28 48.69 +12 54 33.9 r 185
2007-02-19 20:27:03 C 10 28 46.57 +12 54 37.9 r 185
2007-02-19 23:44:54 C 10 28 28.36 +12 55 09.5 17.6 r 084
2007-02-21 08:53:56 C 10 25 27.56 +13 00 36.2 r H45
2007-02-21 08:55:27 C 10 25 27.41 +13 00 36.6 r H45
2007-02-21 08:57:10 C 10 25 27.25 +13 00 36.7 r H45
2007-02-21 08:59:40 C 10 25 27.03 +13 00 37.2 r H45
2007-02-21 09:01:40 C 10 25 26.85 +13 00 37.5 r H45
2007-02-22 06:13:22 C 10 23 29.43 +13 04 01.6 o 699
2007-02-22 06:44:57 C 10 23 26.42 +13 04 06.3 o 699
2007-02-22 06:45:05 C 10 23 26.32 +13 04 06.0 17.8 c 704
2007-02-22 07:19:31 C 10 23 22.80 +13 04 11.9 18.1 c 704
2007-02-22 07:36:21 C 10 23 21.39 +13 04 15.7 17.8 c 704
2007-02-22 07:48:04 C 10 23 20.38 +13 04 16.5 o 699
2007-02-22 07:54:00 C 10 23 19.69 +13 04 16.8 17.9 c 704
2007-02-26 01:51:18 C 10 14 38.81 +13 17 54.1 r 084
2007-02-26 01:55:29 C 10 14 38.36 +13 17 55.0 r 084
2007-03-08 04:35:23 C 09 49 45.28 +13 44 40.3 o 644
2007-03-08 05:08:25 C 09 49 41.77 +13 44 42.8 o 644
2007-03-08 05:43:54 C 09 49 37.99 +13 44 45.3 o 644
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)