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
2005-10-10 23:08:57 C 01 33 42.80 +47 48 49.9 r 084
2005-10-10 23:11:36 C 01 33 42.29 +47 48 46.7 r 084
2005-10-11 20:30:36 C 01 29 52.67 +47 21 41.5 r 084
2005-10-11 20:33:15 C 01 29 52.21 +47 21 38.4 r 084
2005-10-11 20:35:54 C 01 29 51.73 +47 21 35.0 r 084
2005-10-12 16:30:19 C 01 26 28.33 +46 55 59.2 r 084
2005-10-12 16:32:58 C 01 26 27.83 +46 55 55.5 r 084
2005-10-12 17:27:26 C 01 26 18.69 +46 54 48.3 r 084
2005-10-12 17:30:05 C 01 26 18.27 +46 54 45.0 r 084
2005-10-12 17:32:43 C 01 26 17.78 +46 54 41.5 r 084
2005-10-13 19:05:27 C 01 22 10.78 +46 21 54.6 r 084
2005-10-13 19:08:06 C 01 22 10.35 +46 21 51.3 r 084
2005-10-13 19:10:45 C 01 22 09.95 +46 21 48.3 r 084
2005-10-15 20:13:38 C 01 15 00.88 +45 18 35.1 r J94
2005-10-15 20:51:51 C 01 14 55.45 +45 17 47.4 r J94
2005-10-15 21:06:55 C 01 14 53.31 +45 17 28.2 r J94
2005-10-16 01:53:57 C 01 14 12.20 +45 11 11.0 r 084
2005-10-18 18:25:19 C 01 06 16.38 +43 48 34.0 r 084
2005-10-18 18:28:00 C 01 06 16.03 +43 48 31.0 r 084
2005-10-18 18:35:28 C 01 06 15.85 +43 48 24.0 r A30
2005-10-18 18:36:27 C 01 06 15.74 +43 48 22.7 r A30
2005-10-18 18:37:41 C 01 06 15.59 +43 48 21.2 r A30
2005-10-18 18:40:12 C 01 06 15.30 +43 48 18.1 r A30
2005-10-18 18:41:30 C 01 06 15.15 +43 48 16.5 r A30
2005-10-25 02:42:38 C 00 52 23.09 +40 40 39.6 r 084
2005-10-25 02:45:16 C 00 52 22.94 +40 40 36.2 r 084
2005-10-27 20:48:57 C 00 48 10.32 +39 24 01.7 r 084
2005-10-27 20:51:36 C 00 48 10.12 +39 23 58.4 r 084
2005-10-27 23:03:01 C 00 48 02.43 +39 21 31.0 o A32
2005-10-27 23:07:52 C 00 48 02.12 +39 21 25.5 o A32
2005-10-27 23:12:42 C 00 48 01.83 +39 21 20.0 o A32
2005-10-27 23:17:33 C 00 48 01.54 +39 21 14.3 o A32
2005-10-27 23:22:25 C 00 48 01.24 +39 21 08.7 o A32
2005-10-29 18:40:25 C 00 45 47.44 +38 32 52.3 c A65
2005-10-29 19:06:44 C 00 45 46.10 +38 32 24.6 c A65
2005-10-29 19:24:48 C 00 45 45.16 +38 32 05.1 c A65
2005-10-29 21:11:26 C 00 45 39.11 +38 30 04.6 r 084
2005-10-29 21:14:04 C 00 45 38.96 +38 30 01.5 r 084
2005-10-31 04:53:44 C 00 44 15.14 +37 55 59.6 r 703
2005-10-31 05:01:52 C 00 44 14.60 +37 55 49.1 r 703
2005-10-31 05:10:14 C 00 44 14.17 +37 55 39.8 r 703
2005-10-31 05:18:48 C 00 44 13.84 +37 55 31.5 r 703
2005-10-31 20:42:30 C 00 43 36.52 +37 39 03.1 r 084
2005-10-31 20:45:09 C 00 43 36.44 +37 39 00.4 r 084
2005-10-31 22:26:24 C 00 43 32.39 +37 37 15.4 o A32
2005-10-31 22:30:45 C 00 43 32.21 +37 37 10.8 o A32
2005-10-31 22:37:17 C 00 43 31.93 +37 37 03.9 o A32
2005-11-01 20:30:15 C 00 42 44.08 +37 14 15.3 r 084
2005-11-01 20:32:53 C 00 42 44.00 +37 14 13.1 r 084
2005-11-02 16:58:35 C 00 42 04.12 +36 53 19.2 r 084
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)