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
2007-03-16 04:05:07 C 09 30 28.19 +13 49 36.4 o 691
2007-03-16 21:43:30 C 09 28 46.69 +13 49 10.6 c A24
2007-03-16 22:20:30 C 09 28 43.11 +13 49 10.9 c A24
2007-03-16 22:21:58 C 09 28 43.03 +13 49 09.6 c A24
2007-03-16 22:57:01 C 09 28 39.48 +13 49 07.9 c A24
2007-03-17 05:20:06 C 09 28 03.49 +13 49 01.5 18.0 c 704
2007-03-17 05:35:33 C 09 28 01.94 +13 48 58.6 19.2 c 704
2007-03-17 05:51:07 C 09 28 00.50 +13 48 59.1 18.9 c 704
2007-03-17 06:06:19 C 09 27 59.00 +13 48 59.6 17.8 c 704
2007-03-17 06:22:14 C 09 27 57.45 +13 48 59.0 18.1 c 704
2007-03-20 05:37:32 C 09 21 25.37 +13 45 35.7 17.8 c 704
2007-03-20 05:53:37 C 09 21 23.86 +13 45 34.5 18.1 c 704
2007-03-20 06:09:57 C 09 21 22.36 +13 45 33.4 18.0 c 704
2007-03-20 06:25:59 C 09 21 20.88 +13 45 31.7 18.1 c 704
2007-03-20 06:42:41 C 09 21 19.38 +13 45 31.2 18.0 c 704
2007-03-22 19:05:39 C 09 16 07.831 +13 40 41.97 r A30
2007-03-22 19:07:13 C 09 16 07.694 +13 40 41.78 r A30
2007-03-22 19:09:09 C 09 16 07.527 +13 40 41.70 r A30
2007-03-22 19:11:10 C 09 16 07.344 +13 40 41.42 r A30
2007-03-25 00:26:42 C 09 11 48.457 +13 35 02.1 r 084
2007-03-26 22:49:26 C 09 08 17.472 +13 29 06.9 r 084
2007-04-01 03:22:57 C 08 59 59.00 +13 08 51.1 o 644
2007-04-01 03:52:17 C 08 59 57.15 +13 08 45.6 o 644
2007-04-01 04:21:37 C 08 59 55.29 +13 08 40.2 o 644
2007-04-06 20:00:22 C 08 52 49.27 +12 39 42.9 c A24
2007-04-06 20:01:50 C 08 52 49.23 +12 39 42.7 c A24
2007-04-06 20:24:10 C 08 52 48.15 +12 39 37.3 c A24
2007-04-06 20:47:58 C 08 52 47.01 +12 39 31.7 c A24
2007-04-06 21:10:19 C 08 52 45.97 +12 39 25.3 c A24
2007-04-06 21:11:46 C 08 52 45.89 +12 39 26.1 c A24
2007-04-06 21:34:04 C 08 52 44.84 +12 39 20.7 c A24
2007-04-06 21:57:49 C 08 52 43.79 +12 39 15.8 c A24
2007-04-06 22:20:06 C 08 52 42.70 +12 39 09.0 c A24
2007-04-08 20:16:42 C 08 50 47.08 +12 27 54.4 c A24
2007-04-08 20:18:10 C 08 50 47.06 +12 27 54.0 c A24
2007-04-08 21:24:12 C 08 50 44.22 +12 27 37.5 c A24
2007-04-09 20:01:36 C 08 49 52.63 +12 21 49.0 c A24
2007-04-09 20:03:02 C 08 49 52.57 +12 21 49.0 c A24
2007-04-09 21:04:36 C 08 49 50.15 +12 21 33.2 c A24
2007-04-09 21:06:02 C 08 49 50.08 +12 21 32.2 c A24
2007-04-10 20:04:31 C 08 49 01.18 +12 15 28.7 c A24
2007-04-10 20:05:58 C 08 49 01.13 +12 15 28.4 c A24
2007-04-10 21:08:43 C 08 48 58.84 +12 15 11.2 c A24
2007-04-10 21:10:09 C 08 48 58.78 +12 15 11.0 c A24
2007-04-11 03:09:20 C 08 48 46.83 +12 13 37.2 r 703
2007-04-11 03:22:34 C 08 48 46.36 +12 13 33.4 r 703
2007-04-11 03:35:51 C 08 48 45.86 +12 13 30.0 r 703
2007-04-11 03:49:03 C 08 48 45.36 +12 13 26.1 r 703
2007-04-11 20:34:13 C 08 48 12.53 +12 08 50.4 c A24
2007-04-11 20:35:40 C 08 48 12.50 +12 08 49.9 c A24
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)