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
2007-10-09 22:08:23 C 03 00 48.58 +47 52 20.8 r A13
2007-10-09 22:35:26 C 03 00 43.16 +47 52 17.0 r A13
2007-10-13 00:57:29 C 02 46 24.77 +47 32 25.9 c A24
2007-10-13 01:26:30 C 02 46 19.12 +47 32 15.4 c A24
2007-10-13 01:40:18 C 02 46 16.39 +47 32 10.1 c A24
2007-10-13 01:41:45 C 02 46 16.15 +47 32 09.9 c A24
2007-10-16 00:57:24 C 02 33 13.80 +47 01 12.6 c A24
2007-10-16 00:58:52 C 02 33 13.57 +47 01 12.0 c A24
2007-10-16 01:11:41 C 02 33 11.19 +47 01 05.3 c A24
2007-10-16 01:25:58 C 02 33 08.59 +47 00 57.9 c A24
2007-10-16 01:38:49 C 02 33 06.25 +47 00 50.7 c A24
2007-10-16 01:40:16 C 02 33 05.95 +47 00 50.2 c A24
2007-10-16 19:51:05 C 02 29 55.80 +46 51 06.7 c 127
2007-10-16 19:57:04 C 02 29 54.75 +46 51 03.7 c 127
2007-10-16 20:02:06 C 02 29 53.85 +46 51 00.9 c 127
2007-10-16 20:07:14 C 02 29 52.95 +46 50 58.2 c 127
2007-10-16 20:12:21 C 02 29 52.05 +46 50 56.0 c 127
2007-10-16 20:32:47 C 02 29 48.34 +46 50 45.5 o 510
2007-10-16 20:37:23 C 02 29 47.52 +46 50 43.3 o 510
2007-10-19 00:19:04 C 02 21 00.66 +46 20 06.6 d B37
2007-10-19 00:25:22 C 02 20 59.49 +46 20 02.4 d B37
2007-10-19 00:39:49 C 02 20 57.18 +46 19 54.2 d B37
2007-10-19 00:45:03 C 02 20 56.14 +46 19 49.9 d B37
2007-10-20 17:51:50 C 02 14 21.00 +45 51 58.1 r 084
2007-10-20 17:55:03 C 02 14 20.49 +45 51 55.8 r 084
2007-10-22 19:17:25 C 02 06 52.60 +45 15 29.3 c 127
2007-10-22 19:22:47 C 02 06 51.78 +45 15 25.4 c 127
2007-10-22 19:28:05 C 02 06 51.00 +45 15 21.3 c 127
2007-10-31 20:55:33 C 01 40 14.35 +42 07 05.5 c A24
2007-10-31 20:57:00 C 01 40 14.22 +42 07 04.2 c A24
2007-10-31 21:12:56 C 01 40 12.57 +42 06 49.5 c A24
2007-10-31 21:30:18 C 01 40 10.78 +42 06 33.7 c A24
2007-10-31 21:45:52 C 01 40 08.79 +42 06 14.9 r 084
2007-10-31 21:46:15 C 01 40 09.12 +42 06 18.9 c A24
2007-10-31 21:47:41 C 01 40 08.97 +42 06 17.5 c A24
2007-10-31 22:01:10 C 01 40 07.58 +42 06 05.2 c A24
2007-10-31 22:16:06 C 01 40 06.02 +42 05 51.5 c A24
2007-10-31 22:29:34 C 01 40 04.59 +42 05 39.0 c A24
2007-10-31 22:31:02 C 01 40 04.47 +42 05 37.7 c A24
2007-11-04 06:35:28 C 01 32 50.49 +40 50 57.1 r 703
2007-11-04 06:46:28 C 01 32 49.59 +40 50 47.0 r 703
2007-11-04 06:57:29 C 01 32 48.62 +40 50 36.2 r 703
2007-11-04 07:08:23 C 01 32 47.65 +40 50 25.5 r 703
2007-11-04 20:19:33 C 01 31 44.56 +40 38 01.7 a 233
2007-11-04 20:28:32 C 01 31 43.79 +40 37 53.4 a 233
2007-11-04 20:38:10 C 01 31 42.98 +40 37 45.1 a 233
2007-11-04 22:30:25 C 01 31 33.35 +40 35 55.2 r 084
2007-11-18 04:07:55 C 01 15 20.08 +35 55 33.3 w 699
2007-11-18 04:23:45 C 01 15 19.64 +35 55 20.5 w 699
2007-11-18 04:39:34 C 01 15 19.10 +35 55 08.0 w 699
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)