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
2017-03-04 13:55:44 C 12 35 11.70 -13 08 39.2 L T08
2017-03-04 14:16:14 C 12 35 10.84 -13 09 00.5 L T08
2017-03-04 14:37:14 C 12 35 09.94 -13 09 22.3 L T08
2017-03-04 14:57:28 C 12 35 09.11 -13 09 43.3 L T08
2017-03-06 13:52:43 C 12 33 13.98 -14 00 47.9 L T08
2017-03-06 14:13:02 C 12 33 12.98 -14 01 10.5 L T08
2017-03-06 14:34:08 C 12 33 11.95 -14 01 33.9 L T08
2017-03-06 14:53:40 C 12 33 10.97 -14 01 55.5 L T08
2017-03-07 12:53:39 C 12 32 09.96 -14 27 01.9 L T05
2017-03-07 13:15:30 C 12 32 08.79 -14 27 27.0 L T05
2017-03-07 13:37:56 C 12 32 07.57 -14 27 52.8 L T05
2017-03-07 13:59:46 C 12 32 06.40 -14 28 18.0 L T05
2017-03-08 09:24:43 C 12 31 07.85 -14 51 09.3 q H45
2017-03-08 09:26:06 C 12 31 07.78 -14 51 10.7 q H45
2017-03-08 09:27:08 C 12 31 07.72 -14 51 12.0 q H45
2017-03-08 09:28:19 C 12 31 07.65 -14 51 13.7 q H45
2017-03-08 09:29:34 C 12 31 07.56 -14 51 15.0 q H45
2017-03-08 09:30:45 C 12 31 07.52 -14 51 16.4 q H45
2017-03-11 11:36:29 C 12 26 45.49 -16 24 01.4 L T05
2017-03-11 11:56:55 C 12 26 44.00 -16 24 28.1 L T05
2017-03-11 12:16:19 C 12 26 42.58 -16 24 53.6 L T05
2017-03-11 13:07:05 C 12 26 38.88 -16 26 00.4 L T05
2017-03-15 06:09:44 C 12 19 49.58 -18 31 43.9 u H21
2017-03-15 06:12:16 C 12 19 49.33 -18 31 47.7 u H21
2017-03-15 06:14:47 C 12 19 49.12 -18 31 51.5 u H21
2017-03-15 06:17:18 C 12 19 48.87 -18 31 55.2 u H21
2017-03-15 06:19:49 C 12 19 48.64 -18 31 59.1 u H21
2017-03-15 06:22:20 C 12 19 48.40 -18 32 02.8 u H21
2017-03-15 06:24:51 C 12 19 48.16 -18 32 06.6 u H21
2017-03-15 06:27:22 C 12 19 47.94 -18 32 10.5 u H21
2017-03-15 06:29:53 C 12 19 47.70 -18 32 14.3 u H21
2017-03-15 06:32:25 C 12 19 47.47 -18 32 17.9 u H21
2017-03-15 06:34:56 C 12 19 47.22 -18 32 22.1 u H21
2017-03-15 06:37:27 C 12 19 46.98 -18 32 25.7 u H21
2017-03-15 06:39:58 C 12 19 46.75 -18 32 29.3 u H21
2017-03-15 06:42:29 C 12 19 46.52 -18 32 33.2 u H21
2017-03-15 06:45:00 C 12 19 46.29 -18 32 36.8 u H21
2017-03-15 06:48:16 C 12 19 45.97 -18 32 41.8 u H21
2017-03-17 11:55:15 C 12 14 43.201 -19 55 52.92 L F51
2017-03-17 12:11:38 C 12 14 41.402 -19 56 19.47 L F51
2017-03-17 12:28:02 C 12 14 39.602 -19 56 45.99 L F51
2017-03-17 20:58:06 C 12 13 48.23 -20 10 49.3 108
2017-03-17 21:01:51 C 12 13 47.78 -20 10 55.7 108
2017-03-17 21:05:35 C 12 13 47.41 -20 11 02.4 108
2017-03-18 12:43:35 C 12 12 04.74 -20 37 04.1 L T08
2017-03-18 13:03:43 C 12 12 02.39 -20 37 37.8 L T08
2017-03-18 13:23:07 C 12 12 00.10 -20 38 10.4 L T08
2017-03-18 13:43:24 C 12 11 57.75 -20 38 44.5 L T08
2017-03-20 12:10:06 C 12 06 29.46 -22 00 19.5 L T08
2017-03-20 12:31:08 C 12 06 26.64 -22 00 57.2 L T08
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)