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
2003-09-25 00:30:31 C 22 41 01.02 +71 12 24.0 d 118
2003-09-25 01:13:15 C 22 41 24.92 +71 05 34.7 r 557
2003-09-25 02:02:34 C 22 41 51.79 +70 57 42.1 r 557
2003-09-25 02:45:59 C 22 42 15.52 +70 50 46.8 r 557
2003-09-25 03:15:52 C 22 42 31.89 +70 46 01.4 r 557
2003-09-25 03:57:30 C 22 42 54.76 +70 39 25.0 r 557
2003-09-25 21:43:47 C 22 51 13.95 +68 02 48.0 d 118
2003-09-25 21:45:21 C 22 51 14.50 +68 02 34.3 d 118
2003-09-25 21:46:09 C 22 51 14.79 +68 02 27.1 d 118
2003-09-25 21:46:56 C 22 51 15.06 +68 02 20.6 d 118
2003-09-25 21:47:45 C 22 51 15.33 +68 02 14.2 d 118
2003-09-26 02:31:23 C 22 52 51.95 +67 21 51.7 r 557
2003-09-26 03:00:50 C 22 53 02.16 +67 17 41.0 r 557
2003-09-26 03:30:30 C 22 53 12.53 +67 13 28.8 r 557
2003-09-26 04:04:46 C 22 53 24.63 +67 08 38.4 r 557
2003-09-26 19:35:04 C 22 58 26.00 +65 06 38.8 c 434
2003-09-26 19:36:04 C 22 58 26.25 +65 06 31.1 c 434
2003-09-26 19:37:32 C 22 58 26.61 +65 06 19.9 c 434
2003-09-27 21:05:29 C 23 04 17.13 +62 03 52.5 r J87
2003-09-27 21:06:32 C 23 04 17.31 +62 03 45.4 r J87
2003-09-27 21:07:36 C 23 04 17.48 +62 03 38.5 r J87
2003-09-27 21:08:39 C 23 04 17.65 +62 03 31.3 r J87
2003-09-28 16:21:58 C 23 07 29.43 +59 59 54.5 300
2003-09-28 16:23:52 C 23 07 29.75 +59 59 42.6 300
2003-09-28 16:25:46 C 23 07 30.00 +59 59 30.0 300
2003-09-28 16:27:41 C 23 07 30.23 +59 59 18.2 300
2003-09-28 16:29:36 C 23 07 30.48 +59 59 06.5 300
2003-09-29 12:25:58 C 23 10 27.01 +58 02 25.2 m 379
2003-09-29 12:30:03 C 23 10 27.41 +58 02 01.9 m 379
2003-09-29 19:22:30 C 23 11 20.45 +57 23 50.5 c 434
2003-09-29 19:25:00 C 23 11 20.68 +57 23 38.1 c 434
2003-09-29 19:26:49 C 23 11 20.86 +57 23 28.0 c 434
2003-09-29 22:11:17 C 23 11 34.95 +57 08 29.8 o 084
2003-09-30 13:31:49 C 23 13 17.60 +55 49 37.3 m 379
2003-09-30 13:41:59 C 23 13 18.34 +55 48 46.9 m 379
2003-09-30 19:07:39 C 23 13 54.51 +55 21 35.4 d 118
2003-09-30 19:11:54 C 23 13 54.82 +55 21 15.1 d 118
2003-09-30 22:21:02 C 23 14 09.09 +55 06 03.3 d 118
2003-09-30 22:24:25 C 23 14 09.39 +55 05 47.0 d 118
2003-10-01 03:39:54 C 23 14 42.24 +54 40 41.0 c 730
2003-10-01 03:49:41 C 23 14 42.95 +54 39 55.1 c 730
2003-10-01 03:56:59 C 23 14 43.45 +54 39 21.0 c 730
2003-10-01 04:21:56 C 23 14 45.22 +54 37 24.7 c 730
2003-10-01 04:31:54 C 23 14 45.91 +54 36 38.5 c 730
2003-10-01 04:54:04 C 23 14 47.48 +54 34 55.1 c 730
2003-10-01 04:59:21 C 23 14 47.83 +54 34 30.2 c 730
2003-10-01 05:03:27 C 23 14 48.15 +54 34 11.0 c 730
2003-10-02 13:44:50 C 23 17 27.90 +52 11 23.5 m 379
2003-10-02 13:46:52 C 23 17 27.99 +52 11 14.4 m 379
2003-10-02 13:50:57 C 23 17 28.19 +52 10 58.8 m 379
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)