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
1999-11-11 03:23:42 c 22 32 19.49 +14 05 20.3 d 703
1999-11-20 19:04:43 C 23 02 14.83 +15 34 04.5 c 046
1999-11-20 19:08:15 C 23 02 15.22 +15 34 05.9 c 046
1999-12-03 10:53:30 C 23 34 54.79 +17 01 56.6 360
1999-12-03 10:59:14 C 23 34 55.37 +17 01 58.0 360
1999-12-03 11:05:00 C 23 34 55.94 +17 01 59.5 360
2000-12-23 10:21:47 C 10 39 58.44 +16 40 23.2 696
2000-12-23 10:38:11 C 10 39 58.52 +16 40 23.4 696
2000-12-30 12:03:52 C 10 40 25.11 +16 40 59.5 711
2000-12-30 12:22:35 C 10 40 24.99 +16 40 59.9 711
2001-02-01 07:56:43 C 10 13 41.51 +18 33 55.1 18.4 c 704
2001-02-01 08:18:16 C 10 13 40.02 +18 34 01.1 18.6 c 704
2001-02-01 08:39:40 C 10 13 38.55 +18 34 05.1 18.7 c 704
2001-02-01 09:01:04 C 10 13 36.99 +18 34 10.4 19.0 c 704
2001-02-01 09:21:06 C 10 13 35.53 +18 34 13.9 711
2001-02-01 09:22:28 C 10 13 35.46 +18 34 15.6 18.6 c 704
2001-02-02 06:35:27 C 10 12 07.93 +18 39 03.0 c 699
2001-02-02 07:16:45 C 10 12 04.98 +18 39 13.5 c 699
2001-02-02 07:57:22 C 10 12 01.99 +18 39 22.2 c 699
2001-02-02 08:38:10 C 10 11 59.17 +18 39 31.7 c 699
2001-02-03 07:38:34 C 10 10 21.02 +18 44 45.9 18.5 c 704
2001-02-03 08:00:10 C 10 10 19.46 +18 44 49.7 18.6 c 704
2001-02-03 08:21:33 C 10 10 17.84 +18 44 55.6 18.8 c 704
2001-02-03 08:42:56 C 10 10 16.28 +18 44 59.1 18.8 c 704
2001-02-03 09:04:19 C 10 10 14.63 +18 45 03.4 18.8 c 704
2001-02-16 07:57:29 C 09 44 36.49 +19 50 37.5 c 699
2001-02-16 08:29:07 C 09 44 33.59 +19 50 44.9 c 699
2001-02-16 09:00:48 C 09 44 30.59 +19 50 48.6 c 699
2001-02-16 09:32:34 C 09 44 27.69 +19 50 55.3 c 699
2001-02-17 05:47:45 C 09 42 37.89 +19 54 25.1 18.9 c 704
2001-02-17 06:07:52 C 09 42 35.96 +19 54 28.6 19.1 c 704
2001-02-17 06:27:51 C 09 42 34.14 +19 54 31.9 18.9 c 704
2001-02-17 06:47:48 C 09 42 32.19 +19 54 35.6 18.9 c 704
2001-02-21 04:54:22 C 09 33 52.86 +20 09 00.0 c 699
2001-02-21 05:48:29 C 09 33 47.71 +20 09 07.2 c 699
2001-02-21 06:42:27 C 09 33 42.52 +20 09 14.1 c 699
2001-02-21 07:36:34 C 09 33 37.45 +20 09 22.4 c 699
2001-02-26 15:08:23 C 09 21 51.29 +20 22 45.9 360
2001-02-26 15:11:36 C 09 21 50.99 +20 22 46.0 360
2001-02-26 15:15:14 C 09 21 50.65 +20 22 46.4 360
2001-03-13 02:49:46 C 08 53 09.68 +20 19 05.6 c 699
2001-03-13 03:25:40 C 08 53 07.05 +20 19 02.8 c 699
2001-03-13 04:01:39 C 08 53 04.45 +20 18 59.0 c 699
2001-03-13 04:37:42 C 08 53 01.85 +20 18 56.7 c 699
2001-03-18 04:21:31 C 08 45 16.32 +20 04 36.5 18.7 c 704
2001-03-18 04:40:03 C 08 45 15.17 +20 04 33.5 18.9 c 704
2001-03-18 04:59:16 C 08 45 13.97 +20 04 31.3 18.8 c 704
2001-03-18 05:17:49 C 08 45 12.82 +20 04 28.6 18.7 c 704
2001-03-18 05:36:23 C 08 45 11.69 +20 04 25.5 18.6 c 704
2001-03-20 03:11:58 C 08 42 36.58 +19 57 26.5 c 699
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)