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
2003-10-13 18:39:16 C 23 29 45.95 +40 06 08.4 r 185
2003-10-13 19:38:15 C 23 29 47.52 +40 04 24.1 r 185
2003-10-15 11:32:20 C 23 31 07.95 +38 55 40.5 m 379
2003-10-15 11:44:27 C 23 31 08.25 +38 55 20.5 m 379
2003-10-16 04:42:43 C 23 31 41.79 +38 27 51.8 16.4 c 704
2003-10-16 05:00:08 C 23 31 42.17 +38 27 23.9 16.3 c 704
2003-10-16 05:19:43 C 23 31 42.62 +38 26 52.8 16.6 c 704
2003-10-16 05:36:32 C 23 31 43.00 +38 26 25.8 16.9 c 704
2003-10-16 05:53:26 C 23 31 43.38 +38 25 58.8 17.2 c 704
2003-10-16 13:02:20 C 23 31 58.02 +38 14 41.7 m 379
2003-10-16 13:08:23 C 23 31 58.15 +38 14 33.0 m 379
2003-10-16 13:17:30 C 23 31 58.33 +38 14 18.0 m 379
2003-10-16 19:07:37 C 23 32 10.59 +38 05 00.0 o 084
2003-10-17 16:45:40 C 23 32 51.54 +37 32 25.6 300
2003-10-17 16:56:40 C 23 32 51.86 +37 32 08.3 300
2003-10-17 17:07:41 C 23 32 52.19 +37 31 51.5 300
2003-10-17 17:18:40 C 23 32 52.48 +37 31 34.6 300
2003-10-17 17:29:40 C 23 32 52.82 +37 31 18.1 300
2003-10-17 17:40:39 C 23 32 53.11 +37 31 01.0 300
2003-10-17 18:52:29 C 23 32 58.46 +37 29 13.3 c A37
2003-10-17 18:55:31 C 23 32 58.46 +37 29 10.2 c A37
2003-10-17 19:01:14 C 23 32 58.78 +37 28 59.8 c A37
2003-10-17 19:09:52 C 23 32 58.92 +37 28 48.1 c A37
2003-10-18 22:14:58 C 23 33 51.40 +36 49 54.0 o 084
2003-10-19 23:21:39 C 23 34 41.47 +36 15 37.5 o 084
2003-10-20 04:21:26 C 23 34 51.78 +36 09 12.6 m 462
2003-10-20 04:43:16 C 23 34 52.36 +36 08 43.3 m 462
2003-10-20 04:56:09 C 23 34 53.17 +36 08 24.3 r 750
2003-10-20 05:00:35 C 23 34 53.30 +36 08 18.4 r 750
2003-10-20 05:05:40 C 23 34 52.98 +36 08 13.0 m 462
2003-10-20 05:15:38 C 23 34 53.70 +36 07 58.3 r 750
2003-10-20 05:30:40 C 23 34 54.11 +36 07 38.2 r 750
2003-10-20 11:16:31 C 23 35 07.06 +36 00 11.1 m 379
2003-10-20 11:19:51 C 23 35 07.18 +36 00 06.7 m 379
2003-10-20 11:29:48 C 23 35 07.38 +35 59 53.6 m 379
2003-10-22 15:12:40 C 23 36 51.08 +34 55 29.5 m 379
2003-10-22 15:21:46 C 23 36 51.31 +34 55 18.7 m 379
2003-10-22 15:27:50 C 23 36 51.53 +34 55 11.2 m 379
2003-10-23 03:02:05 C 23 37 17.66 +34 41 36.4 o 699
2003-10-23 03:26:33 C 23 37 18.31 +34 41 08.7 o 699
2003-10-23 03:50:48 C 23 37 18.94 +34 40 40.9 o 699
2003-10-23 04:15:08 C 23 37 19.66 +34 40 13.0 o 699
2003-10-23 04:47:41 C 23 37 20.40 +34 39 36.3 16.7 c 704
2003-10-23 05:04:38 C 23 37 20.85 +34 39 16.7 16.6 c 704
2003-10-23 05:21:27 C 23 37 21.32 +34 38 56.9 16.5 c 704
2003-10-23 05:38:30 C 23 37 21.80 +34 38 36.4 16.8 c 704
2003-10-23 05:55:22 C 23 37 22.21 +34 38 16.6 17.1 c 704
2003-10-23 20:24:25 C 23 37 53.48 +34 21 33.9 c J93
2003-10-23 20:27:29 C 23 37 53.56 +34 21 30.5 c J93
2003-10-23 20:30:32 C 23 37 53.65 +34 21 27.3 c J93
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)