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
2003-10-24 04:40:54 C 23 38 09.57 +34 12 27.8 d H72
2003-10-24 04:45:33 C 23 38 09.73 +34 12 22.5 d H72
2003-10-24 04:50:14 C 23 38 09.86 +34 12 16.5 d H72
2003-10-24 04:54:55 C 23 38 10.00 +34 12 11.3 17.0 d H72
2003-10-24 11:42:59 C 23 38 25.48 +34 04 37.3 m 379
2003-10-24 11:52:05 C 23 38 25.69 +34 04 27.2 m 379
2003-10-24 11:55:07 C 23 38 25.85 +34 04 24.0 m 379
2003-10-24 11:58:10 C 23 38 25.90 +34 04 20.8 m 379
2003-10-24 17:45:49 C 23 38 38.51 +33 57 47.8 o 084
2003-10-26 12:00:20 C 23 40 09.03 +33 13 27.4 m 379
2003-10-26 12:03:23 C 23 40 09.10 +33 13 24.2 m 379
2003-10-26 12:12:29 C 23 40 09.40 +33 13 15.7 m 379
2003-10-27 19:29:59 C 23 41 18.80 +32 42 09.1 c 434
2003-10-27 19:34:22 C 23 41 18.88 +32 42 04.6 c 434
2003-10-27 19:37:16 C 23 41 18.99 +32 42 02.4 c 434
2003-10-27 21:17:28 C 23 41 22.18 +32 40 24.9 A30
2003-10-27 21:19:08 C 23 41 22.26 +32 40 23.6 A30
2003-10-27 21:23:00 C 23 41 22.37 +32 40 20.1 A30
2003-10-27 21:32:16 C 23 41 22.77 +32 40 11.7 A30
2003-10-28 17:11:04 C 23 42 07.95 +32 21 28.0 r 557
2003-10-28 17:47:36 C 23 42 09.21 +32 20 55.0 c 113
2003-10-28 17:49:43 C 23 42 09.29 +32 20 53.0 c 113
2003-10-28 17:51:48 C 23 42 09.36 +32 20 51.4 c 113
2003-10-28 18:08:29 C 23 42 09.89 +32 20 35.7 r 557
2003-10-28 19:09:07 C 23 42 11.90 +32 19 40.1 r 557
2003-10-28 20:09:05 C 23 42 13.88 +32 18 44.5 r 557
2003-10-28 21:36:30 C 23 42 16.73 +32 17 23.0 r 557
2003-10-28 22:08:34 C 23 42 17.80 +32 16 52.7 r 557
2003-10-29 01:11:29 C 23 42 24.38 +32 13 55.4 o 084
2003-10-30 00:51:09 C 23 43 18.67 +31 52 31.4 o 084
2003-11-01 18:52:53 C 23 45 55.68 +30 56 54.1 o 084
2003-11-02 17:26:09 C 23 46 51.17 +30 39 10.0 c 113
2003-11-02 17:28:14 C 23 46 51.23 +30 39 08.1 c 113
2003-11-02 17:30:21 C 23 46 51.31 +30 39 06.6 c 113
2003-11-02 17:32:24 C 23 46 51.41 +30 39 05.0 c 113
2003-11-02 17:34:29 C 23 46 51.47 +30 39 03.4 c 113
2003-11-02 19:57:08 C 23 46 56.73 +30 37 12.7 A30
2003-11-02 20:02:50 C 23 46 57.03 +30 37 12.6 A30
2003-11-02 20:09:57 C 23 46 57.29 +30 37 06.1 A30
2003-11-02 20:58:58 C 23 46 59.04 +30 36 28.6 c 130
2003-11-02 21:02:40 C 23 46 59.18 +30 36 25.7 c 130
2003-11-02 21:06:22 C 23 46 59.30 +30 36 23.0 c 130
2003-11-02 21:10:04 C 23 46 59.45 +30 36 20.3 c 130
2003-11-03 04:39:36 C 23 47 18.03 +30 30 40.9 18.1 c 704
2003-11-03 04:56:51 C 23 47 18.65 +30 30 27.7 18.3 c 704
2003-11-03 05:14:02 C 23 47 19.14 +30 30 15.4 18.5 c 704
2003-11-03 05:31:25 C 23 47 19.75 +30 30 02.0 18.5 c 704
2003-11-03 05:48:49 C 23 47 20.53 +30 29 48.2 18.5 c 704
2003-11-03 17:52:58 C 23 47 51.41 +30 20 36.8 r 557
2003-11-03 18:39:48 C 23 47 53.17 +30 20 02.4 r 557
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)