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
2001-10-08 20:15:58 C 20 54 08.48 +22 49 58.3 c 629
2001-10-09 02:11:24 C 20 56 31.23 +22 53 19.1 i 726
2001-10-09 02:16:24 C 20 56 33.14 +22 53 22.4 i 726
2001-10-09 02:21:25 C 20 56 35.05 +22 53 24.4 i 726
2001-10-10 20:50:36 C 21 12 13.55 +23 11 31.7 c 113
2001-10-10 20:52:36 C 21 12 14.22 +23 11 32.0 c 113
2001-10-10 20:54:36 C 21 12 14.88 +23 11 32.8 c 113
2001-10-10 20:56:36 C 21 12 15.54 +23 11 33.3 c 113
2001-10-10 20:58:37 C 21 12 16.21 +23 11 33.9 c 113
2001-10-11 13:01:00 C 21 17 38.69 +23 16 24.6 355
2001-10-11 13:03:00 C 21 17 39.32 +23 16 25.2 355
2001-10-11 13:07:34 C 21 17 40.82 +23 16 26.0 355
2001-10-11 13:09:28 C 21 17 41.39 +23 16 26.5 355
2001-10-13 10:39:06 C 21 31 37.53 +23 24 50.9 349
2001-10-13 10:41:02 C 21 31 38.05 +23 24 51.2 349
2001-10-13 10:42:21 C 21 31 38.43 +23 24 51.6 349
2001-10-13 10:43:50 C 21 31 38.81 +23 24 51.9 349
2001-10-13 14:22:31 C 21 32 39.05 +23 25 10.4 347
2001-10-13 14:26:07 C 21 32 40.06 +23 25 10.6 347
2001-10-13 20:11:35 C 21 34 18.14 +23 25 41.7 c 118
2001-10-13 20:15:24 C 21 34 19.17 +23 25 42.0 c 118
2001-10-13 20:22:36 C 21 34 21.11 +23 25 42.5 c 118
2001-10-15 19:37:49 C 21 46 39.70 +23 27 39.2 c 198
2001-10-15 19:53:35 C 21 46 43.42 +23 27 38.9 c 198
2001-10-15 20:06:36 C 21 46 46.48 +23 27 38.7 c 198
2001-10-17 00:49:29 C 21 53 31.85 +23 26 52.6 i 726
2001-10-17 00:54:30 C 21 53 32.93 +23 26 52.3 i 726
2001-10-17 00:59:30 C 21 53 34.05 +23 26 52.1 i 726
2001-10-17 01:04:29 C 21 53 35.16 +23 26 51.9 i 726
2001-10-17 01:10:13 C 21 53 36.39 +23 26 51.8 i 726
2001-10-17 01:14:30 C 21 53 37.32 +23 26 51.5 i 726
2001-10-17 17:44:38 C 21 57 16.96 +23 25 53.2 c 185
2001-10-17 17:49:30 C 21 57 17.80 +23 25 52.9 c 185
2001-10-17 17:52:45 C 21 57 18.48 +23 25 53.0 c 185
2001-10-17 17:55:30 C 21 57 19.07 +23 25 52.7 c 185
2001-10-17 17:57:59 C 21 57 19.59 +23 25 52.7 c 185
2001-10-18 03:48:18 C 21 59 25.08 +23 25 17.4 15.5 c 704
2001-10-18 04:10:56 C 21 59 29.67 +23 25 15.4 16.0 c 704
2001-10-18 04:33:35 C 21 59 34.27 +23 25 13.2 16.6 c 704
2001-10-18 04:56:14 C 21 59 38.86 +23 25 11.0 16.2 c 704
2001-10-18 05:18:54 C 21 59 43.42 +23 25 09.0 16.2 c 704
2001-10-18 20:57:21 C 22 02 58.23 +23 23 39.3 c 198
2001-10-18 21:02:51 C 22 02 59.33 +23 23 38.7 c 198
2001-10-18 21:15:59 C 22 03 01.92 +23 23 37.4 c 198
2001-10-19 00:45:21 C 22 03 45.70 +23 23 18.0 i 726
2001-10-19 00:50:22 C 22 03 46.62 +23 23 17.1 i 726
2001-10-19 00:55:22 C 22 03 47.62 +23 23 17.5 i 726
2001-10-20 19:52:57 C 22 12 01.85 +23 18 22.8 635
2001-10-20 20:06:26 C 22 12 04.24 +23 18 20.8 635
2001-10-20 20:20:07 C 22 12 06.64 +23 18 18.9 635
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)