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
2007-04-11 21:38:47 C 08 48 10.34 +12 08 31.7 c A24
2007-04-11 21:40:15 C 08 48 10.34 +12 08 31.8 c A24
2007-04-15 04:17:04 C 08 46 00.74 +11 46 00.8 18.3 c 704
2007-04-15 04:30:16 C 08 46 00.38 +11 45 56.9 18.4 c 704
2007-04-15 04:43:29 C 08 46 00.04 +11 45 53.3 18.6 c 704
2007-04-15 04:57:23 C 08 45 59.69 +11 45 48.5 18.2 c 704
2007-04-15 05:10:40 C 08 45 59.33 +11 45 44.4 18.6 c 704
2007-04-18 04:12:08 C 08 44 35.40 +11 23 48.4 18.8 c 704
2007-04-18 04:24:57 C 08 44 35.21 +11 23 43.9 19.3 c 704
2007-04-18 04:37:48 C 08 44 34.89 +11 23 40.4 18.6 c 704
2007-04-18 04:50:47 C 08 44 34.69 +11 23 35.6 18.8 c 704
2007-04-18 05:04:00 C 08 44 34.42 +11 23 31.3 18.5 c 704
2007-04-22 04:23:55 C 08 43 28.38 +10 51 47.4 o 704
2007-04-22 04:36:40 C 08 43 28.29 +10 51 43.6 o 704
2007-04-22 04:49:49 C 08 43 28.10 +10 51 38.6 o 704
2007-04-22 05:02:37 C 08 43 28.01 +10 51 34.1 o 704
2007-04-22 05:15:27 C 08 43 27.90 +10 51 30.3 o 704
2007-05-19 03:35:28 C 08 54 04.53 +06 11 34.2 r 703
2007-05-19 03:46:24 C 08 54 04.96 +06 11 26.8 r 703
2007-05-19 03:57:21 C 08 54 05.25 +06 11 20.9 r 703
2007-05-19 04:08:22 C 08 54 05.65 +06 11 14.7 r 703
2007-06-15 09:01:04 C 09 20 53.91 -00 22 37.4 r E12
2007-06-15 09:06:40 C 09 20 54.09 -00 22 41.8 r E12
2007-06-15 09:12:15 C 09 20 54.34 -00 22 45.2 r E12
2007-06-15 09:17:55 C 09 20 54.56 -00 22 49.8 r E12
2007-09-05 00:16:18 C 05 31 22.21 +36 24 06.6 r 084
2007-09-08 01:51:10 C 05 19 40.42 +38 25 02.4 r 084
2007-09-09 01:43:49 C 05 15 53.80 +39 01 47.6 r 084
2007-09-10 01:32:16 C 05 12 07.64 +39 37 15.0 r 084
2007-09-10 01:35:29 C 05 12 07.10 +39 37 19.9 r 084
2007-09-11 23:07:47 C 05 04 52.62 +40 41 54.4 r 084
2007-09-11 23:11:01 C 05 04 52.09 +40 41 59.2 r 084
2007-09-12 00:54:22 C 05 04 35.19 +40 44 24.6 r 084
2007-09-12 00:57:35 C 05 04 34.66 +40 44 29.1 r 084
2007-09-17 02:31:34 C 04 44 40.80 +43 16 33.9 r B19
2007-09-17 02:46:13 C 04 44 38.26 +43 16 50.8 r B19
2007-09-19 22:42:44 C 04 33 00.19 +44 28 34.1 r 084
2007-09-20 01:18:26 C 04 32 32.25 +44 31 11.1 r 084
2007-09-24 20:57:01 C 04 11 40.98 +46 10 10.9 r 084
2007-09-24 21:00:14 C 04 11 40.45 +46 10 13.1 r 084
2007-09-25 20:24:06 C 04 07 17.60 +46 26 36.2 r 084
2007-09-25 20:27:21 C 04 07 17.06 +46 26 38.4 r 084
2007-09-25 22:57:16 C 04 06 48.36 +46 28 24.9 r 084
2007-09-26 01:36:31 C 04 06 17.55 +46 30 12.7 r 084
2007-09-26 01:39:44 C 04 06 16.93 +46 30 14.9 r 084
2007-09-29 23:45:39 C 03 48 09.77 +47 21 49.9 r 084
2007-09-29 23:48:52 C 03 48 09.14 +47 21 51.3 r 084
2007-10-07 00:28:21 C 03 14 35.15 +47 58 38.7 r B19
2007-10-07 00:36:47 C 03 14 33.51 +47 58 38.4 r B19
2007-10-09 21:41:48 C 03 00 53.90 +47 52 24.5 r A13
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)