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
2013-02-28 23:11:43 C 11 23 09.33 +00 50 28.7 q C73
2013-02-28 23:12:53 C 11 23 09.24 +00 50 28.6 q C73
2013-02-28 23:14:02 C 11 23 09.12 +00 50 28.2 q C73
2013-02-28 23:15:12 C 11 23 09.04 +00 50 28.3 q C73
2013-02-28 23:16:21 C 11 23 08.94 +00 50 28.2 q C73
2013-02-28 23:17:31 C 11 23 08.82 +00 50 27.8 q C73
2013-02-28 23:18:40 C 11 23 08.72 +00 50 27.7 q C73
2013-02-28 23:19:48 C 11 23 08.61 +00 50 27.6 q C73
2013-02-28 23:20:57 C 11 23 08.52 +00 50 27.4 q C73
2013-02-28 23:22:07 C 11 23 08.37 +00 50 27.1 q C73
2013-02-28 23:23:16 C 11 23 08.29 +00 50 27.0 q C73
2013-02-28 23:24:25 C 11 23 08.18 +00 50 26.8 q C73
2013-02-28 23:25:35 C 11 23 08.07 +00 50 26.7 q C73
2013-02-28 23:26:45 C 11 23 07.98 +00 50 26.6 q C73
2013-03-02 07:52:01 C 11 20 11.61 +00 45 17.1 u 703
2013-03-02 07:59:18 C 11 20 10.89 +00 45 15.9 u 703
2013-03-02 08:06:31 C 11 20 10.17 +00 45 14.4 u 703
2013-03-02 08:13:50 C 11 20 09.49 +00 45 13.6 u 703
2013-03-04 22:35:38 C 11 14 04.56 +00 35 17.8 c 127
2013-03-04 22:47:23 C 11 14 03.33 +00 35 16.0 c 127
2013-03-04 22:54:46 C 11 14 02.55 +00 35 14.9 c 127
2013-03-11 03:38:40 C 10 57 20.15 +00 12 04.8 q H15
2013-03-11 03:52:56 C 10 57 18.35 +00 12 02.6 q H15
2013-03-11 04:07:26 C 10 57 16.55 +00 12 00.3 q H15
2013-03-11 04:22:01 C 10 57 14.71 +00 11 58.1 q H15
2013-03-11 07:16:30 C 10 56 52.69 +00 11 30.9 u 703
2013-03-11 07:22:54 C 10 56 51.90 +00 11 29.9 u 703
2013-03-11 07:29:23 C 10 56 51.07 +00 11 28.9 u 703
2013-03-11 07:35:54 C 10 56 50.24 +00 11 27.8 u 703
2013-03-20 20:46:21 C 10 26 03.28 -00 26 12.8 o I56
2013-03-20 20:51:49 C 10 26 02.52 -00 26 13.6 o I56
2013-03-20 20:55:14 C 10 26 01.97 -00 26 14.4 o I56
2013-03-21 05:04:52 C 10 24 50.97 -00 27 41.7 u H21
2013-03-21 05:08:59 C 10 24 50.35 -00 27 42.4 u H21
2013-03-21 05:12:51 C 10 24 49.77 -00 27 43.1 u H21
2013-03-21 05:16:47 C 10 24 49.19 -00 27 43.9 u H21
2013-03-21 05:19:37 C 10 24 48.77 -00 27 44.3 u H21
2013-03-28 03:18:43 C 10 00 29.99 -00 59 22.8 u H21
2013-03-28 03:25:18 C 10 00 28.98 -00 59 24.0 u H21
2013-03-28 03:31:54 C 10 00 27.97 -00 59 25.5 u H21
2013-03-28 03:38:27 C 10 00 26.98 -00 59 26.8 u H21
2013-03-28 03:46:13 C 10 00 25.80 -00 59 28.3 u H21
2013-03-29 22:14:58 C 09 54 10.73 -01 08 23.1 w I57
2013-03-29 22:15:43 C 09 54 10.64 -01 08 23.3 w I57
2013-03-29 22:16:52 C 09 54 10.49 -01 08 23.7 w I57
2013-04-07 11:17:57 C 09 25 03.49 -01 56 44.1 q E12
2013-04-07 11:35:06 C 09 25 01.08 -01 56 48.6 q E12
2013-04-07 11:52:23 C 09 24 58.64 -01 56 53.2 q E12
2013-04-07 12:09:41 C 09 24 56.21 -01 56 57.7 q E12
2013-04-17 11:40:42 C 08 55 04.19 -03 08 41.6 q E12
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)