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
2009-03-20 20:13:10 C 09 36 25.72 +10 23 18.6 r 168
2009-03-20 20:15:00 C 09 36 25.55 +10 23 18.3 r 168
2009-03-20 20:17:05 C 09 36 25.31 +10 23 18.9 r 168
2009-03-20 20:19:05 C 09 36 25.13 +10 23 18.6 r 168
2009-03-21 22:11:35 C 09 33 46.64 +10 21 56.8 c A24
2009-03-21 22:13:03 C 09 33 46.44 +10 21 56.9 c A24
2009-03-21 22:28:37 C 09 33 44.86 +10 21 55.8 c A24
2009-03-21 22:45:37 C 09 33 43.07 +10 21 54.7 c A24
2009-03-21 23:01:11 C 09 33 41.45 +10 21 53.5 c A24
2009-03-21 23:02:37 C 09 33 41.29 +10 21 53.7 c A24
2009-03-22 05:46:00 C 09 33 00.73 +10 21 31.6 17.3 c 704
2009-03-22 06:03:47 C 09 32 58.88 +10 21 30.3 17.4 c 704
2009-03-22 06:23:04 C 09 32 56.89 +10 21 29.1 17.7 c 704
2009-03-22 06:41:30 C 09 32 54.98 +10 21 27.7 17.3 c 704
2009-03-22 20:14:11 C 09 31 34.04 +10 20 32.5 r 157
2009-03-22 20:15:17 C 09 31 33.97 +10 20 32.2 r 157
2009-03-22 20:16:22 C 09 31 33.83 +10 20 31.4 r 157
2009-03-22 20:17:31 C 09 31 33.70 +10 20 31.7 r 157
2009-03-22 20:18:36 C 09 31 33.63 +10 20 31.6 r 157
2009-03-22 20:19:43 C 09 31 33.50 +10 20 31.5 r 157
2009-03-24 21:35:31 C 09 26 44.97 +10 16 32.0 c A24
2009-03-24 21:36:58 C 09 26 44.81 +10 16 31.7 c A24
2009-03-24 21:52:33 C 09 26 43.30 +10 16 30.4 c A24
2009-03-24 22:09:34 C 09 26 41.61 +10 16 28.6 c A24
2009-03-24 22:25:08 C 09 26 40.09 +10 16 27.3 c A24
2009-03-24 22:26:36 C 09 26 39.94 +10 16 26.8 c A24
2009-03-28 04:48:52 C 09 19 28.99 +10 07 55.0 r G96
2009-03-28 04:59:39 C 09 19 28.02 +10 07 53.9 r G96
2009-03-28 05:10:40 C 09 19 26.97 +10 07 52.2 r G96
2009-03-28 05:21:40 C 09 19 25.96 +10 07 50.9 r G96
2009-03-28 21:40:57 C 09 18 00.63 +10 05 41.1 i 071
2009-03-28 21:43:20 C 09 18 00.41 +10 05 40.6 i 071
2009-03-28 21:48:10 C 09 18 00.02 +10 05 40.2 i 071
2009-03-28 21:50:34 C 09 17 59.80 +10 05 39.9 i 071
2009-03-29 04:00:36 C 09 17 28.53 +10 04 50.4 r 703
2009-03-29 04:09:19 C 09 17 27.74 +10 04 50.6 r 703
2009-03-29 04:17:59 C 09 17 26.95 +10 04 49.3 r 703
2009-03-29 04:26:32 C 09 17 26.19 +10 04 47.8 r 703
2009-03-29 05:40:48 C 09 17 19.59 +10 04 37.0 18.4 c 704
2009-03-29 05:58:13 C 09 17 18.04 +10 04 35.3 18.5 c 704
2009-03-29 06:15:34 C 09 17 16.49 +10 04 32.6 18.6 c 704
2009-03-29 06:32:41 C 09 17 14.95 +10 04 30.0 18.4 c 704
2009-03-29 06:49:41 C 09 17 13.46 +10 04 27.4 18.6 c 704
2009-04-16 03:18:44 C 08 50 58.66 +08 28 59.4 17.8 c 704
2009-04-16 03:34:33 C 08 50 58.01 +08 28 53.8 17.7 c 704
2009-04-16 03:50:11 C 08 50 57.42 +08 28 48.9 19.1 c 704
2009-04-16 04:05:46 C 08 50 56.69 +08 28 44.2 18.1 c 704
2009-05-01 00:55:29 C 08 43 41.39 +06 22 25.9 c 808
2009-05-01 01:06:29 C 08 43 41.29 +06 22 21.6 c 808
2009-05-07 19:32:43 C 08 43 42.71 +05 11 42.5 w 160
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)