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
2019-02-25 13:53:18 C 13 19 46.73 -16 15 00.5 V T08
2019-02-25 14:05:56 C 13 19 47.12 -16 15 16.0 V T08
2019-02-25 14:18:32 C 13 19 47.52 -16 15 32.4 V T08
2019-02-25 14:31:09 C 13 19 47.89 -16 15 48.1 V T08
2019-03-01 12:33:29 C 13 23 01.32 -18 23 19.5 V T08
2019-03-01 12:57:54 C 13 23 02.00 -18 23 55.2 V T08
2019-03-01 12:59:14 C 13 23 02.03 -18 23 56.8 V T08
2019-03-01 13:03:52 C 13 23 02.17 -18 24 03.5 V T08
2019-03-01 13:16:30 C 13 23 02.53 -18 24 22.1 V T08
2019-03-01 13:21:09 C 13 23 02.64 -18 24 28.7 V T08
2019-03-01 13:24:44 C 13 23 02.74 -18 24 33.7 V T08
2019-03-05 12:32:40 C 13 26 05.58 -20 52 57.4 V T08
2019-03-05 13:07:30 C 13 26 06.41 -20 53 56.5 V T08
2019-03-05 13:13:28 C 13 26 06.57 -20 54 06.3 V T08
2019-03-05 13:17:26 C 13 26 06.68 -20 54 13.2 V T08
2019-03-06 09:58:33 C 13 26 44.82 -21 29 37.7 V 703
2019-03-06 10:06:13 C 13 26 45.01 -21 29 50.8 V 703
2019-03-06 10:13:53 C 13 26 45.21 -21 30 04.5 V 703
2019-03-06 10:21:32 C 13 26 45.39 -21 30 17.6 V 703
2019-03-09 13:07:49 C 13 28 58.38 -23 48 53.6 V T08
2019-03-09 13:21:47 C 13 28 58.71 -23 49 20.6 V T08
2019-03-09 13:35:44 C 13 28 59.04 -23 49 48.3 V T08
2019-03-09 13:49:41 C 13 28 59.35 -23 50 15.7 V T08
2019-03-17 12:06:08 C 13 34 14.51 -31 23 09.6 V T08
2019-03-17 12:19:15 C 13 34 14.76 -31 23 47.1 V T08
2019-03-17 12:27:13 C 13 34 14.90 -31 24 09.9 V T08
2019-03-17 12:40:22 C 13 34 15.13 -31 24 47.7 V T08
2019-04-14 13:57:32 S 00 42 25.610 -80 32 57.52 L C51
2019-04-14 15:31:47 S 00 43 37.241 -80 19 55.70 L C51
2019-04-14 17:06:02 S 00 44 45.943 -80 06 53.35 L C51
2019-08-08 14:08:14 C 04 24 18.357 +28 46 21.59 U F52
2019-08-08 14:27:37 C 04 24 20.002 +28 46 34.18 U F52
2019-09-18 09:56:37 C 05 27 04.79 +37 18 20.9 V G96
2019-09-18 10:04:16 C 05 27 05.06 +37 18 24.6 V G96
2019-09-18 10:11:54 C 05 27 05.30 +37 18 28.3 V G96
2019-09-18 10:19:33 C 05 27 05.53 +37 18 32.0 V G96
2019-10-07 09:08:20 C 05 32 42.29 +40 49 22.2 V G96
2019-10-07 09:16:12 C 05 32 42.17 +40 49 25.9 V G96
2019-10-07 09:24:03 C 05 32 42.06 +40 49 29.5 V G96
2019-10-07 09:31:54 C 05 32 41.95 +40 49 33.2 V G96
2019-11-01 12:59:31 C 05 02 17.65 +44 37 16.9 V T05
2019-11-01 13:02:10 C 05 02 17.40 +44 37 17.5 V T05
2019-11-01 13:04:10 C 05 02 17.22 +44 37 17.9 V T05
2019-11-01 13:12:45 C 05 02 16.38 +44 37 20.1 V T05
2019-11-18 08:59:40 C 04 20 08.87 +44 50 30.9 V G96
2019-11-18 09:07:11 C 04 20 08.01 +44 50 29.6 V G96
2019-11-18 09:14:43 C 04 20 07.14 +44 50 28.1 V G96
2019-11-18 09:22:14 C 04 20 06.29 +44 50 26.8 V G96
2019-12-03 11:09:15 C 03 42 37.97 +42 45 43.0 V T05
2019-12-03 11:13:52 C 03 42 37.59 +42 45 40.8 V T05
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)