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
2015-02-11 11:35:02 C 12 12 59.72 -01 54 09.1 q G96
2015-02-11 11:51:19 C 12 12 59.48 -01 54 15.8 q G96
2015-02-12 01:44:55 C 12 12 49.52 -01 59 55.5 q 160
2015-02-12 01:47:42 C 12 12 49.47 -01 59 56.5 q 160
2015-02-12 01:50:43 C 12 12 49.40 -01 59 57.8 q 160
2015-02-14 10:39:08 C 12 11 55.56 -02 23 10.1 R G45
2015-02-14 10:45:06 C 12 11 55.46 -02 23 11.8 R G45
2015-02-14 10:46:45 C 12 11 55.41 -02 23 13.0 R G45
2015-02-14 10:52:43 C 12 11 55.29 -02 23 15.0 R G45
2015-02-14 11:00:49 C 12 11 55.09 -02 23 18.7 R G45
2015-02-14 11:06:47 C 12 11 54.97 -02 23 21.3 R G45
2015-02-15 12:58:29 C 12 11 24.117 -02 34 00.82 L F51
2015-02-15 13:17:02 C 12 11 23.657 -02 34 08.53 L F51
2015-02-15 13:35:36 C 12 11 23.196 -02 34 16.23 L F51
2015-02-16 10:28:03 C 12 10 54.90 -02 43 01.4 R G45
2015-02-16 10:34:01 C 12 10 54.73 -02 43 03.9 R G45
2015-02-16 10:41:41 C 12 10 54.57 -02 43 07.4 R G45
2015-02-16 10:41:47 C 12 10 54.55 -02 43 06.1 R G45
2015-02-16 10:57:21 C 12 10 54.12 -02 43 13.5 R G45
2015-02-16 12:16:02 C 12 10 52.602 -02 43 43.81 L F51
2015-02-16 12:52:34 C 12 10 51.601 -02 43 59.09 L F51
2015-02-16 13:10:52 C 12 10 51.097 -02 44 06.77 L F51
2015-02-18 01:18:57 C 12 09 54.74 -02 59 24.9 q 160
2015-02-18 01:21:56 C 12 09 54.64 -02 59 25.9 q 160
2015-02-18 01:24:55 C 12 09 54.54 -02 59 27.5 q 160
2015-02-19 10:14:12 C 12 08 55.19 -03 13 25.6 R G45
2015-02-19 10:20:09 C 12 08 54.96 -03 13 27.8 R G45
2015-02-19 10:27:52 C 12 08 54.68 -03 13 31.6 R G45
2015-02-19 10:33:50 C 12 08 54.49 -03 13 34.3 R G45
2015-02-19 10:41:51 C 12 08 54.21 -03 13 37.7 R G45
2015-02-19 10:47:43 C 12 08 53.98 -03 13 39.4 R G45
2015-02-20 01:45:15 C 12 08 24.65 -03 20 07.5 q 160
2015-02-20 01:47:38 C 12 08 24.55 -03 20 09.2 q 160
2015-02-20 01:50:00 C 12 08 24.42 -03 20 10.0 q 160
2015-02-20 10:11:23 C 12 08 07.10 -03 23 45.7 R G45
2015-02-20 10:17:15 C 12 08 06.91 -03 23 49.3 R G45
2015-02-20 10:31:02 C 12 08 06.34 -03 23 53.9 R G45
2015-02-20 10:38:56 C 12 08 06.04 -03 23 57.1 R G45
2015-02-20 10:44:55 C 12 08 05.81 -03 23 59.7 R G45
2015-02-23 05:01:17 C 12 05 30.60 -03 52 55.0 17.3 q W95
2015-02-23 05:21:16 C 12 05 29.66 -03 53 03.9 17.5 q W95
2015-02-23 05:41:15 C 12 05 28.71 -03 53 12.8 17.4 q W95
2015-02-23 06:01:16 C 12 05 27.76 -03 53 21.8 17.4 q W95
2015-02-25 10:16:24 C 12 02 59.38 -04 17 12.5 o 691
2015-02-25 10:33:36 C 12 02 58.43 -04 17 20.3 o 691
2015-02-25 10:50:48 C 12 02 57.51 -04 17 28.2 o 691
2015-02-25 11:58:46 C 12 02 54.475 -04 17 56.76 L F51
2015-02-25 12:18:46 C 12 02 53.370 -04 18 05.90 L F51
2015-02-26 09:43:42 C 12 01 45.50 -04 28 00.8 R G45
2015-02-26 09:49:40 C 12 01 45.15 -04 28 03.8 R G45
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)