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
2013-12-02 15:25:32 C 02 32 14.13 +39 15 41.9 q D29
2013-12-03 04:32:48 C 02 31 33.52 +39 07 01.2 q 703
2013-12-03 04:36:55 C 02 31 33.23 +39 06 58.5 q 703
2013-12-03 04:39:49 C 02 31 33.11 +39 06 56.5 q 703
2013-12-03 04:42:42 C 02 31 32.96 +39 06 54.6 q 703
2013-12-11 01:10:10 C 02 24 09.40 +37 06 53.8 u H21
2013-12-11 01:15:53 C 02 24 09.26 +37 06 50.4 u H21
2013-12-11 01:22:12 C 02 24 09.04 +37 06 46.7 u H21
2014-01-20 02:57:16 C 02 35 43.11 +31 03 32.9 q G96
2014-01-20 03:04:02 C 02 35 43.39 +31 03 31.8 q G96
2014-01-20 03:10:48 C 02 35 43.65 +31 03 31.1 q G96
2014-01-20 03:17:33 C 02 35 43.89 +31 03 29.8 q G96
2014-11-30 14:05:17 C 11 16 41.063 +09 26 49.09 L F51
2014-11-30 14:22:27 C 11 16 41.982 +09 26 42.23 L F51
2014-12-27 12:15:27 C 11 48 45.34 +05 11 34.6 R G45
2014-12-27 12:28:40 C 11 48 45.83 +05 11 30.1 R G45
2014-12-27 12:34:37 C 11 48 46.08 +05 11 27.3 R G45
2014-12-27 12:49:11 C 11 48 46.74 +05 11 22.9 R G45
2014-12-29 12:09:11 C 11 50 48.03 +04 52 58.2 R G45
2014-12-29 12:13:34 C 11 50 48.17 +04 52 57.7 R G45
2014-12-29 12:18:01 C 11 50 48.49 +04 52 55.3 R G45
2014-12-29 12:23:21 C 11 50 48.61 +04 52 52.8 R G45
2014-12-29 12:34:01 C 11 50 49.14 +04 52 49.3 R G45
2014-12-29 12:38:20 C 11 50 49.25 +04 52 47.8 R G45
2014-12-29 12:42:43 C 11 50 49.42 +04 52 46.0 R G45
2014-12-30 10:56:52 C 11 51 45.30 +04 44 08.8 q 703
2014-12-30 11:04:05 C 11 51 45.69 +04 44 06.2 q 703
2014-12-30 11:11:17 C 11 51 45.99 +04 44 04.0 q 703
2014-12-30 11:18:29 C 11 51 46.32 +04 44 01.3 q 703
2015-01-06 14:16:40 C 11 58 28.421 +03 38 04.12 L F51
2015-01-06 14:36:22 C 11 58 29.098 +03 37 56.56 L F51
2015-01-06 14:56:08 C 11 58 29.789 +03 37 48.99 L F51
2015-01-06 15:15:59 C 11 58 30.476 +03 37 41.57 L F51
2015-01-18 09:33:49 C 12 07 28.13 +01 49 44.1 q 703
2015-01-18 09:39:35 C 12 07 28.26 +01 49 42.7 q 703
2015-01-18 09:45:21 C 12 07 28.42 +01 49 40.4 q 703
2015-01-18 09:51:08 C 12 07 28.59 +01 49 38.9 q 703
2015-01-19 13:51:21 C 12 08 11.344 +01 38 59.71 L F51
2015-01-19 14:10:50 C 12 08 11.786 +01 38 52.31 L F51
2015-01-19 14:30:19 C 12 08 12.229 +01 38 44.88 L F51
2015-01-19 14:49:47 C 12 08 12.667 +01 38 37.46 L F51
2015-01-25 12:42:29 C 12 11 14.384 +00 44 35.06 L F51
2015-01-25 13:04:35 C 12 11 14.727 +00 44 26.63 L F51
2015-01-25 13:26:36 C 12 11 15.065 +00 44 18.19 L F51
2015-01-25 13:48:41 C 12 11 15.401 +00 44 09.81 L F51
2015-02-11 01:55:58 C 12 13 06.40 -01 50 17.3 q 160
2015-02-11 01:58:58 C 12 13 06.39 -01 50 18.1 q 160
2015-02-11 02:01:31 C 12 13 06.33 -01 50 19.4 q 160
2015-02-11 11:13:25 C 12 13 00.03 -01 54 00.4 q G96
2015-02-11 11:24:12 C 12 12 59.87 -01 54 04.9 q G96
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)