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
2013-04-17 11:53:32 C 08 55 02.674 -03 08 45.83 q E12
2013-04-17 12:21:52 C 08 54 59.32 -03 08 55.3 q E12
2013-04-19 21:31:52 C 08 48 38.21 -03 29 11.6 w I99
2013-04-19 21:34:49 C 08 48 37.86 -03 29 12.4 w I99
2013-04-19 21:41:40 C 08 48 37.17 -03 29 15.3 w I99
2013-04-23 18:38:00 C 08 38 50.28 -04 03 43.8 16.7 u 089
2013-04-23 18:40:08 C 08 38 50.09 -04 03 44.4 17.1 u 089
2013-04-23 18:42:17 C 08 38 49.90 -04 03 45.6 17.5 u 089
2013-04-23 18:46:35 C 08 38 49.39 -04 03 47.0 17.2 u 089
2013-04-23 18:48:44 C 08 38 49.17 -04 03 48.2 16.5 u 089
2013-04-23 18:50:53 C 08 38 48.99 -04 03 48.4 16.7 u 089
2013-04-23 18:53:02 C 08 38 48.72 -04 03 49.3 16.9 u 089
2013-04-23 18:57:20 C 08 38 48.29 -04 03 51.6 17.8 u 089
2013-05-11 10:17:30 C 07 57 51.70 -07 07 55.7 q E12
2013-05-11 10:30:00 C 07 57 50.40 -07 08 01.4 q E12
2013-10-18 08:19:31 C 04 26 21.35 +45 06 03.6 q H45
2013-10-18 08:21:55 C 04 26 21.03 +45 06 04.2 q H45
2013-10-18 08:29:39 C 04 26 20.26 +45 06 06.7 q H45
2013-10-18 08:33:32 C 04 26 19.84 +45 06 08.2 q H45
2013-10-18 08:36:03 C 04 26 19.59 +45 06 08.6 q H45
2013-10-18 08:37:33 C 04 26 19.42 +45 06 09.2 q H45
2013-10-22 08:03:12 C 04 16 04.84 +45 29 46.0 u H21
2013-10-22 08:07:26 C 04 16 04.33 +45 29 46.4 u H21
2013-10-22 08:12:05 C 04 16 03.78 +45 29 47.2 u H21
2013-10-22 08:16:44 C 04 16 03.26 +45 29 48.2 u H21
2013-10-22 08:21:35 C 04 16 02.67 +45 29 48.9 u H21
2013-11-06 23:42:15 C 03 29 31.78 +45 06 16.6 c A24
2013-11-06 23:44:20 C 03 29 31.57 +45 06 16.2 c A24
2013-11-07 00:41:24 C 03 29 24.26 +45 05 57.2 c A24
2013-11-07 00:43:29 C 03 29 23.96 +45 05 56.4 c A24
2013-11-13 00:14:40 C 03 12 09.52 +44 07 30.7 c A24
2013-11-13 00:16:44 C 03 12 09.29 +44 07 30.0 c A24
2013-11-13 00:34:29 C 03 12 07.22 +44 07 21.0 c A24
2013-11-13 00:54:50 C 03 12 04.84 +44 07 11.0 c A24
2013-11-13 01:12:36 C 03 12 02.77 +44 07 02.0 c A24
2013-11-13 01:14:40 C 03 12 02.51 +44 07 01.1 c A24
2013-11-13 06:46:13 C 03 11 25.28 +44 04 22.3 q G96
2013-11-13 06:50:48 C 03 11 24.74 +44 04 20.0 q G96
2013-11-13 06:55:22 C 03 11 24.22 +44 04 17.7 q G96
2013-11-13 07:00:08 C 03 11 23.64 +44 04 15.5 q G96
2013-11-14 22:27:58 C 03 07 00.38 +43 44 06.8 q Z81
2013-11-14 22:56:05 C 03 06 57.22 +43 43 52.1 q Z81
2013-11-14 23:24:11 C 03 06 53.98 +43 43 37.6 q Z81
2013-11-19 05:16:57 C 02 56 23.78 +42 45 49.6 u H21
2013-11-19 05:19:59 C 02 56 23.50 +42 45 47.3 u H21
2013-11-19 05:23:02 C 02 56 23.20 +42 45 45.5 u H21
2013-11-19 05:26:21 C 02 56 22.88 +42 45 44.1 u H21
2013-11-19 05:30:28 C 02 56 22.45 +42 45 41.5 u H21
2013-12-02 14:36:52 C 02 32 16.85 +39 16 14.4 q D29
2013-12-02 15:01:12 C 02 32 15.47 +39 15 58.5 q D29
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)