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
2005-05-12 03:37:16 C 08 50 01.92 +09 45 52.6 19.3 c 704
2005-05-12 03:52:03 C 08 50 02.48 +09 45 45.6 19.2 c 704
2005-05-12 04:07:12 C 08 50 02.95 +09 45 37.9 19.0 c 704
2005-05-12 04:22:47 C 08 50 03.58 +09 45 31.1 19.5 c 704
2005-09-11 00:17:40 C 06 12 31.17 +45 49 23.0 r 084
2005-09-11 00:18:47 C 06 12 30.58 +45 49 26.8 r 084
2005-09-14 00:25:13 C 05 35 13.70 +49 13 43.2 r 084
2005-09-14 00:26:20 C 05 35 13.10 +49 13 46.1 r 084
2005-09-18 00:16:17 C 04 45 34.55 +52 06 37.6 o 084
2005-09-18 00:17:43 C 04 45 33.84 +52 06 39.8 o 084
2005-09-18 00:19:09 C 04 45 33.07 +52 06 41.8 o 084
2005-09-19 20:34:14 C 04 23 25.47 +52 52 10.9 o 084
2005-09-19 20:35:41 C 04 23 24.73 +52 52 12.2 o 084
2005-09-22 19:49:22 C 03 49 42.03 +53 27 45.7 c 127
2005-09-22 19:54:22 C 03 49 39.79 +53 27 47.3 c 127
2005-09-23 00:32:47 C 03 47 31.62 +53 29 02.9 o 084
2005-09-23 00:34:13 C 03 47 31.06 +53 29 02.9 o 084
2005-09-23 00:35:40 C 03 47 30.34 +53 29 03.2 o 084
2005-09-23 19:37:12 C 03 39 04.95 +53 30 37.8 c 127
2005-09-23 19:41:19 C 03 39 03.14 +53 30 38.3 c 127
2005-09-23 19:44:10 C 03 39 01.99 +53 30 39.5 o A74
2005-09-23 19:44:31 C 03 39 01.75 +53 30 38.7 c 127
2005-09-23 19:45:12 C 03 39 01.54 +53 30 39.7 o A74
2005-09-23 19:48:20 C 03 39 00.14 +53 30 40.1 o A74
2005-09-23 19:48:36 C 03 39 00.02 +53 30 38.9 c 127
2005-09-23 19:51:55 C 03 38 58.53 +53 30 39.5 c 127
2005-09-23 20:07:28 C 03 38 51.85 +53 30 42.5 o A74
2005-09-23 20:08:30 C 03 38 51.39 +53 30 42.8 o A74
2005-09-23 20:09:33 C 03 38 50.93 +53 30 42.9 o A74
2005-09-23 20:32:39 C 03 38 40.86 +53 30 45.9 o A74
2005-09-23 20:33:41 C 03 38 40.40 +53 30 45.8 o A74
2005-09-23 20:38:24 C 03 38 38.36 +53 30 46.7 o A74
2005-09-24 01:27:40 C 03 36 30.58 +53 31 09.1 o J68
2005-09-24 02:07:35 C 03 36 12.66 +53 31 10.5 o J68
2005-09-24 02:27:14 C 03 36 03.88 +53 31 10.9 o J68
2005-09-24 22:04:11 C 03 27 41.05 +53 29 29.2 o 084
2005-09-24 22:05:38 C 03 27 40.41 +53 29 29.0 o 084
2005-09-30 00:36:57 C 02 41 07.73 +52 31 51.9 o 493
2005-09-30 02:25:15 C 02 40 30.07 +52 30 33.3 o 493
2005-09-30 03:37:47 C 02 40 04.33 +52 29 35.7 o 493
2005-09-30 04:27:06 C 02 39 47.26 +52 28 55.8 o 493
2005-10-02 23:35:38 C 02 18 48.41 +51 29 47.6 r 084
2005-10-04 00:32:56 C 02 11 43.82 +51 04 36.5 r 084
2005-10-05 17:54:20 C 02 00 53.66 +50 19 41.0 r 084
2005-10-05 17:56:18 C 02 00 53.19 +50 19 39.1 r 084
2005-10-05 17:58:18 C 02 00 52.71 +50 19 36.7 r 084
2005-10-09 02:34:28 C 01 42 25.66 +48 44 24.0 r 084
2005-10-09 02:37:07 C 01 42 25.11 +48 44 20.6 r 084
2005-10-09 02:39:45 C 01 42 24.54 +48 44 17.3 r 084
2005-10-10 23:06:17 C 01 33 43.35 +47 48 53.5 r 084
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)