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
2007-03-13 23:36:59 C 09 35 35.26 +13 49 51.7 c A24
2007-03-13 23:48:28 C 09 35 34.09 +13 49 51.7 c A24
2007-03-13 23:49:54 C 09 35 33.94 +13 49 51.7 c A24
2007-03-14 00:02:17 C 09 35 32.69 +13 49 51.7 c A24
2007-03-14 00:14:03 C 09 35 31.48 +13 49 51.8 c A24
2007-03-14 00:25:25 C 09 35 30.35 +13 49 51.9 c A24
2007-03-14 00:26:50 C 09 35 30.18 +13 49 51.6 c A24
2007-03-14 00:35:07 C 09 35 29.35 +13 49 51.8 c A24
2007-03-14 00:52:45 C 09 35 27.57 +13 49 51.9 c A24
2007-03-14 01:10:00 C 09 35 25.83 +13 49 52.2 c A24
2007-03-14 01:28:49 C 09 35 23.90 +13 49 52.1 c A24
2007-03-14 05:14:02 C 09 35 02.25 +13 49 57.0 17.9 c 704
2007-03-14 05:29:22 C 09 35 00.68 +13 49 56.9 18.1 c 704
2007-03-14 05:44:46 C 09 34 59.12 +13 49 56.8 17.8 c 704
2007-03-14 06:00:09 C 09 34 57.55 +13 49 55.2 18.2 c 704
2007-03-14 06:15:42 C 09 34 55.96 +13 49 57.2 18.3 c 704
2007-03-14 21:43:12 C 09 33 24.78 +13 49 53.6 c A24
2007-03-14 22:00:55 C 09 33 22.99 +13 49 53.6 c A24
2007-03-14 22:17:51 C 09 33 21.28 +13 49 53.0 c A24
2007-03-14 22:35:56 C 09 33 19.50 +13 49 53.1 c A24
2007-03-14 22:56:04 C 09 33 17.47 +13 49 52.9 c A24
2007-03-14 22:57:30 C 09 33 17.36 +13 49 52.7 c A24
2007-03-14 23:08:00 C 09 33 16.29 +13 49 52.9 c A24
2007-03-14 23:19:54 C 09 33 15.08 +13 49 52.9 c A24
2007-03-14 23:30:24 C 09 33 14.04 +13 49 53.1 c A24
2007-03-14 23:31:50 C 09 33 13.87 +13 49 53.1 c A24
2007-03-14 23:42:19 C 09 33 12.84 +13 49 53.0 c A24
2007-03-14 23:54:13 C 09 33 11.64 +13 49 53.1 c A24
2007-03-15 00:04:41 C 09 33 10.59 +13 49 52.7 c A24
2007-03-15 00:06:08 C 09 33 10.46 +13 49 53.2 c A24
2007-03-15 00:08:42 C 09 33 10.210 +13 49 49.6 r 084
2007-03-15 00:12:52 C 09 33 09.765 +13 49 49.6 r 084
2007-03-15 00:21:54 C 09 33 08.87 +13 49 52.9 c A24
2007-03-15 00:37:24 C 09 33 07.31 +13 49 52.5 c A24
2007-03-15 00:53:34 C 09 33 05.71 +13 49 53.1 c A24
2007-03-15 01:11:34 C 09 33 03.90 +13 49 52.2 c A24
2007-03-15 21:36:52 C 09 31 05.36 +13 49 40.0 c A24
2007-03-15 21:49:41 C 09 31 04.10 +13 49 39.9 c A24
2007-03-15 21:51:08 C 09 31 03.92 +13 49 39.8 c A24
2007-03-15 22:02:23 C 09 31 02.83 +13 49 40.0 c A24
2007-03-15 22:15:04 C 09 31 01.56 +13 49 39.8 c A24
2007-03-15 22:26:18 C 09 31 00.45 +13 49 40.0 c A24
2007-03-15 22:27:46 C 09 31 00.25 +13 49 39.3 c A24
2007-03-15 22:38:28 C 09 30 59.23 +13 49 39.5 c A24
2007-03-15 22:50:38 C 09 30 58.00 +13 49 39.0 c A24
2007-03-15 23:01:20 C 09 30 56.97 +13 49 39.2 c A24
2007-03-15 23:02:47 C 09 30 56.79 +13 49 38.8 c A24
2007-03-15 23:19:58 C 09 30 55.14 +13 49 38.5 c A24
2007-03-16 03:02:55 C 09 30 34.35 +13 49 37.2 o 691
2007-03-16 03:34:01 C 09 30 31.28 +13 49 36.8 o 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)