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
2003-03-06 06:26:06 C 09 21 12.98 +18 33 18.4 17.9 c 704
2003-03-06 06:45:19 C 09 21 11.21 +18 33 19.4 17.7 c 704
2003-03-06 07:04:29 C 09 21 09.43 +18 33 19.2 17.8 c 704
2003-03-08 05:44:04 C 09 16 59.54 +18 34 05.0 18.2 c 704
2003-03-08 06:03:07 C 09 16 57.80 +18 34 04.9 18.3 c 704
2003-03-08 06:22:06 C 09 16 56.09 +18 34 05.4 18.3 c 704
2003-03-08 06:40:55 C 09 16 54.35 +18 34 05.3 18.3 c 704
2003-03-08 06:59:45 C 09 16 52.66 +18 34 04.5 18.5 c 704
2003-03-09 04:10:24 C 09 15 02.04 +18 34 03.7 17.9 c 704
2003-03-09 04:29:21 C 09 15 00.33 +18 34 02.5 18.2 c 704
2003-03-09 04:48:10 C 09 14 58.64 +18 34 03.3 18.1 c 704
2003-03-09 05:07:06 C 09 14 56.94 +18 34 02.5 18.1 c 704
2003-03-09 05:26:02 C 09 14 55.28 +18 34 03.4 18.0 c 704
2003-03-10 04:04:50 C 09 12 58.66 +18 33 44.5 17.8 c 704
2003-03-10 04:11:13 C 09 12 58.18 +18 33 44.5 17.9 c 704
2003-03-10 04:23:37 C 09 12 57.05 +18 33 45.6 18.5 c 704
2003-03-10 04:30:07 C 09 12 56.48 +18 33 44.6 18.2 c 704
2003-03-10 04:42:54 C 09 12 55.41 +18 33 45.3 18.5 c 704
2003-03-10 04:49:13 C 09 12 54.78 +18 33 44.8 18.0 c 704
2003-03-10 05:01:26 C 09 12 53.80 +18 33 44.3 18.4 c 704
2003-03-10 05:08:07 C 09 12 53.21 +18 33 43.6 18.2 c 704
2003-03-10 05:20:12 C 09 12 52.10 +18 33 43.9 18.8 c 704
2003-03-12 04:39:17 C 09 08 55.38 +18 32 17.6 18.3 c 644
2003-03-12 05:08:59 C 09 08 52.89 +18 32 16.5 18.1 c 644
2003-03-12 05:39:25 C 09 08 50.31 +18 32 15.3 18.2 c 644
2003-03-13 07:36:31 C 09 06 44.85 +18 31 00.1 19.0 c 608
2003-03-13 07:51:25 C 09 06 43.61 +18 30 59.4 18.9 c 608
2003-03-13 08:06:25 C 09 06 42.38 +18 30 58.6 18.9 c 608
2003-04-01 04:13:59 C 08 40 17.27 +17 23 18.6 19.1 c 704
2003-04-01 04:31:47 C 08 40 16.67 +17 23 12.7 19.1 c 704
2003-04-01 04:48:32 C 08 40 16.02 +17 23 08.6 19.1 c 704
2003-04-01 05:06:01 C 08 40 15.29 +17 23 05.1 19.2 c 704
2003-04-01 05:22:39 C 08 40 14.72 +17 23 00.8 19.0 c 704
2003-04-04 04:29:18 C 08 38 00.11 +17 05 57.6 18.4 c 704
2003-04-04 04:46:45 C 08 37 59.62 +17 05 52.4 18.6 c 704
2003-04-04 05:04:15 C 08 37 59.05 +17 05 48.5 18.9 c 704
2003-04-04 05:21:56 C 08 37 58.53 +17 05 44.5 18.6 c 704
2003-04-04 05:39:25 C 08 37 58.00 +17 05 40.1 18.6 c 704
2003-04-25 03:24:29 C 08 35 48.46 +14 30 12.2 o 704
2003-04-25 03:41:51 C 08 35 48.87 +14 30 05.9 o 704
2003-04-28 03:20:02 C 08 37 12.17 +14 03 28.2 o 699
2003-04-28 03:40:31 C 08 37 12.46 +14 03 19.1 o 699
2003-04-28 04:00:50 C 08 37 12.88 +14 03 11.9 o 699
2003-04-28 04:21:14 C 08 37 13.29 +14 03 03.4 o 699
2003-04-29 03:24:09 C 08 37 44.91 +13 54 16.0 18.6 c 704
2003-04-29 03:24:40 C 08 37 44.90 +13 54 14.9 18.3 c 704
2003-04-29 03:41:43 C 08 37 45.26 +13 54 09.1 19.0 c 704
2003-04-29 03:42:20 C 08 37 45.31 +13 54 07.6 18.8 c 704
2003-04-29 03:59:24 C 08 37 45.63 +13 54 02.2 19.1 c 704
2003-04-29 03:59:56 C 08 37 45.70 +13 54 01.4 19.0 c 704
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)