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
2003-10-03 13:43:29 C 23 19 06.46 +50 37 40.3 m 379
2003-10-03 13:51:37 C 23 19 06.81 +50 37 10.0 m 379
2003-10-03 13:53:40 C 23 19 06.87 +50 37 02.1 m 379
2003-10-04 12:16:19 C 23 20 30.07 +49 16 57.0 m 379
2003-10-04 12:26:17 C 23 20 30.46 +49 16 23.0 m 379
2003-10-04 12:31:16 C 23 20 30.68 +49 16 05.6 m 379
2003-10-04 22:43:32 C 23 21 04.26 +48 41 38.6 r 938
2003-10-04 22:56:30 C 23 21 04.75 +48 40 56.0 r 938
2003-10-04 23:16:57 C 23 21 05.50 +48 39 48.2 r 938
2003-10-06 05:13:19 C 23 22 37.39 +47 05 45.7 c 750
2003-10-06 05:16:22 C 23 22 37.50 +47 05 36.5 c 750
2003-10-06 05:25:39 C 23 22 37.81 +47 05 08.6 c 750
2003-10-07 19:44:51 C 23 24 25.66 +45 17 36.5 d J87
2003-10-07 19:47:28 C 23 24 25.76 +45 17 30.0 d J87
2003-10-07 19:50:46 C 23 24 25.85 +45 17 21.6 d J87
2003-10-08 13:41:19 C 23 25 07.93 +44 31 40.4 355
2003-10-08 13:46:31 C 23 25 08.04 +44 31 27.4 355
2003-10-08 13:48:32 C 23 25 08.11 +44 31 22.1 355
2003-10-08 13:51:06 C 23 25 08.20 +44 31 15.7 355
2003-10-08 15:07:39 C 23 25 10.56 +44 28 05.1 300
2003-10-08 15:08:59 C 23 25 10.61 +44 28 00.7 300
2003-10-08 15:11:34 C 23 25 10.68 +44 27 55.2 300
2003-10-08 15:14:11 C 23 25 10.73 +44 27 47.9 300
2003-10-08 19:46:17 C 23 25 23.62 +44 16 16.5 o 084
2003-10-09 13:14:02 C 23 26 04.80 +43 34 42.9 m 379
2003-10-09 13:16:21 C 23 26 04.79 +43 34 37.5 m 379
2003-10-09 13:18:40 C 23 26 04.87 +43 34 32.0 m 379
2003-10-09 14:35:59 C 23 26 06.76 +43 31 28.1 355
2003-10-09 14:38:38 C 23 26 06.84 +43 31 22.5 355
2003-10-09 21:38:36 C 23 26 24.90 +43 15 11.9 r 941
2003-10-09 21:39:14 C 23 26 24.91 +43 15 10.4 r 941
2003-10-09 21:39:52 C 23 26 24.93 +43 15 09.0 r 941
2003-10-09 21:40:29 C 23 26 24.94 +43 15 07.6 r 941
2003-10-09 21:41:07 C 23 26 24.96 +43 15 06.1 r 941
2003-10-10 19:22:39 C 23 27 14.78 +42 26 51.1 c 434
2003-10-10 19:26:38 C 23 27 14.90 +42 26 42.3 c 434
2003-10-10 19:34:15 C 23 27 15.10 +42 26 26.0 c 434
2003-10-10 22:11:20 C 23 27 18.68 +42 20 39.3 o 084
2003-10-12 19:20:17 C 23 28 57.48 +40 49 29.5 r 240
2003-10-12 19:21:05 C 23 28 57.50 +40 49 28.1 r 240
2003-10-12 19:21:51 C 23 28 57.52 +40 49 26.7 r 240
2003-10-12 19:26:36 C 23 28 57.65 +40 49 17.7 r 240
2003-10-12 19:27:24 C 23 28 57.67 +40 49 16.2 r 240
2003-10-12 19:28:11 C 23 28 57.69 +40 49 14.7 r 240
2003-10-12 19:31:22 C 23 28 57.77 +40 49 08.9 r 240
2003-10-12 19:32:57 C 23 28 57.81 +40 49 05.9 r 240
2003-10-13 18:21:14 C 23 29 45.46 +40 06 39.6 r 185
2003-10-13 18:24:50 C 23 29 45.55 +40 06 33.3 r 185
2003-10-13 18:30:05 C 23 29 45.68 +40 06 24.0 r 185
2003-10-13 18:32:40 C 23 29 45.78 +40 06 19.8 r 185
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)