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
2001-10-25 10:51:57 C 22 30 15.93 +23 01 30.0 c 402
2001-10-25 10:55:45 C 22 30 16.48 +23 01 29.5 c 402
2001-10-25 10:59:33 C 22 30 17.01 +23 01 28.9 c 402
2001-11-12 03:30:06 C 23 18 32.39 +21 54 24.6 17.7 c 704
2001-11-12 03:50:48 C 23 18 34.21 +21 54 21.5 18.4 c 704
2001-11-12 04:11:30 C 23 18 36.07 +21 54 18.7 18.7 c 704
2001-11-12 04:32:13 C 23 18 37.87 +21 54 16.0 18.4 c 704
2001-11-12 04:52:57 C 23 18 39.71 +21 54 13.1 18.0 c 704
2001-11-26 02:37:09 C 23 47 12.57 +21 26 51.0 c 711
2001-11-26 02:54:16 C 23 47 13.89 +21 26 50.2 c 711
2001-11-26 03:09:58 C 23 47 15.13 +21 26 49.5 c 711
2001-12-10 03:37:01 C 00 13 29.79 +21 27 13.0 20.7 c 704
2001-12-10 04:20:16 C 00 13 33.06 +21 27 15.6 20.2 c 704
2001-12-10 04:41:55 C 00 13 34.71 +21 27 15.7 19.7 c 704
2003-01-18 11:43:37 C 10 44 06.336 +15 31 38.32 W 644
2003-01-18 12:14:18 C 10 44 05.381 +15 31 41.70 W 644
2003-01-18 12:45:05 C 10 44 04.351 +15 31 46.06 W 644
2003-01-27 07:39:31 C 10 35 35.44 +16 03 23.0 19.1 c 704
2003-01-27 08:01:36 C 10 35 34.34 +16 03 27.2 19.3 c 704
2003-01-27 08:23:48 C 10 35 33.18 +16 03 31.5 19.0 c 704
2003-01-27 08:46:01 C 10 35 32.02 +16 03 35.8 19.0 c 704
2003-01-27 09:08:30 C 10 35 30.89 +16 03 39.6 19.4 c 704
2003-02-01 07:45:22 C 10 28 54.50 +16 26 10.1 18.9 c 704
2003-02-01 08:29:05 C 10 28 51.71 +16 26 18.4 19.4 c 704
2003-02-01 08:51:09 C 10 28 50.28 +16 26 23.2 19.2 c 704
2003-02-01 09:12:56 C 10 28 48.89 +16 26 27.3 19.0 c 704
2003-02-04 06:22:49 C 10 24 21.39 +16 40 38.4 c 699
2003-02-04 06:52:44 C 10 24 19.34 +16 40 43.9 c 699
2003-02-04 07:22:33 C 10 24 17.25 +16 40 51.3 c 699
2003-02-04 07:50:47 C 10 24 15.44 +16 40 59.6 19.5 c 704
2003-02-04 07:52:19 C 10 24 15.15 +16 40 58.2 c 699
2003-02-04 08:13:25 C 10 24 13.65 +16 41 02.4 19.5 c 704
2003-02-04 08:33:58 C 10 24 12.26 +16 41 07.1 19.4 c 704
2003-02-04 08:54:19 C 10 24 10.78 +16 41 11.2 19.4 c 704
2003-02-04 09:14:39 C 10 24 09.45 +16 41 15.2 19.3 c 704
2003-02-21 05:49:23 C 09 50 39.37 +18 02 04.3 17.9 c 644
2003-02-21 06:21:42 C 09 50 36.27 +18 02 09.7 18.1 c 644
2003-02-21 06:52:14 C 09 50 33.32 +18 02 14.8 18.0 c 644
2003-02-23 05:06:20 C 09 46 12.01 +18 09 22.5 c 699
2003-02-23 05:42:30 C 09 46 08.51 +18 09 28.3 c 699
2003-02-23 06:32:07 C 09 46 03.64 +18 09 35.7 c 699
2003-02-23 07:08:13 C 09 46 00.14 +18 09 41.0 c 699
2003-02-24 13:01:54 C 09 43 09.31 +18 13 53.5 18.9 c 608
2003-02-24 13:17:22 C 09 43 07.80 +18 13 55.6 18.9 c 608
2003-02-24 13:32:43 C 09 43 06.32 +18 13 57.3 18.9 c 608
2003-02-27 22:18:21 C 09 35 25.11 +18 23 23.0 c 240
2003-02-27 22:23:51 C 09 35 24.57 +18 23 23.7 c 240
2003-02-27 22:27:57 C 09 35 24.16 +18 23 24.2 c 240
2003-03-06 05:47:45 C 09 21 16.59 +18 33 17.3 17.4 c 704
2003-03-06 06:06:54 C 09 21 14.81 +18 33 17.8 17.7 c 704
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)