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
2001-03-20 03:43:26 C 08 42 34.84 +19 57 21.5 c 699
2001-03-20 04:14:57 C 08 42 33.07 +19 57 16.4 c 699
2001-03-20 04:46:33 C 08 42 31.26 +19 57 11.4 c 699
2001-03-23 19:14:40 C 08 38 11.22 +19 41 46.7 049
2001-03-23 19:33:32 C 08 38 10.39 +19 41 43.1 049
2001-03-23 19:52:12 C 08 38 09.52 +19 41 38.5 049
2001-03-24 04:19:41 C 08 37 46.80 +19 40 05.6 18.1 c 704
2001-03-24 04:56:23 C 08 37 45.11 +19 39 59.2 18.1 c 704
2001-03-24 05:15:59 C 08 37 44.18 +19 39 54.5 18.2 c 704
2001-03-24 05:34:57 C 08 37 43.28 +19 39 51.7 18.0 c 704
2001-04-09 20:12:41 C 08 27 52.95 +18 00 20.3 049
2001-04-09 20:31:28 C 08 27 52.84 +18 00 13.4 049
2001-04-09 20:50:28 C 08 27 52.72 +18 00 08.4 049
2001-04-25 03:24:25 C 08 31 17.93 +15 58 55.0 c 699
2001-04-25 03:42:22 C 08 31 18.34 +15 58 47.2 c 699
2001-04-25 04:00:18 C 08 31 18.57 +15 58 41.1 c 699
2001-04-25 04:18:14 C 08 31 19.07 +15 58 34.4 c 699
2001-05-11 06:11:16 C 08 44 55.63 +13 22 18.0 20.9 c 608
2001-05-11 06:26:54 C 08 44 56.36 +13 22 10.7 20.5 c 608
2001-05-11 06:42:16 C 08 44 57.03 +13 22 03.5 20.2 c 608
2001-05-26 06:10:31 C 09 04 35.21 +10 25 35.9 20.1 c 608
2001-05-26 06:25:35 C 09 04 36.10 +10 25 27.9 19.9 c 608
2001-05-26 06:40:40 C 09 04 37.02 +10 25 19.6 20.4 c 608
2001-09-22 19:33:36 C 16 32 16.90 +03 32 19.5 c 113
2001-09-22 19:34:48 C 16 32 17.84 +03 32 24.9 c 113
2001-09-22 19:36:01 C 16 32 18.76 +03 32 31.8 c 113
2001-09-22 19:37:12 C 16 32 19.65 +03 32 37.4 c 113
2001-09-22 19:38:24 C 16 32 20.56 +03 32 43.6 c 113
2001-09-28 13:15:27 C 18 25 08.86 +14 38 09.5 347
2001-09-28 13:22:40 C 18 25 14.71 +14 38 38.1 347
2001-10-02 18:32:31 C 19 39 07.03 +19 49 01.2 c 118
2001-10-02 18:35:40 C 19 39 08.99 +19 49 07.6 c 118
2001-10-03 22:47:13 C 19 56 29.06 +20 43 38.3 945
2001-10-03 22:48:19 C 19 56 29.72 +20 43 40.3 945
2001-10-03 22:50:31 C 19 56 30.98 +20 43 44.1 945
2001-10-06 00:49:06 C 20 23 48.65 +21 54 14.6 d 739
2001-10-06 00:51:20 C 20 23 49.75 +21 54 16.6 d 739
2001-10-06 00:54:42 C 20 23 51.39 +21 54 21.0 d 739
2001-10-07 00:33:38 C 20 35 16.80 +22 18 03.8 i 726
2001-10-07 00:38:38 C 20 35 19.04 +22 18 08.7 i 726
2001-10-07 00:43:37 C 20 35 21.33 +22 18 12.8 i 726
2001-10-07 00:48:37 C 20 35 23.60 +22 18 17.8 i 726
2001-10-07 00:53:38 C 20 35 25.84 +22 18 22.1 i 726
2001-10-07 18:02:50 C 20 43 09.99 +22 32 32.3 c 185
2001-10-07 18:05:15 C 20 43 11.01 +22 32 34.3 c 185
2001-10-07 18:08:00 C 20 43 12.16 +22 32 36.3 c 185
2001-10-07 18:13:00 C 20 43 14.29 +22 32 39.9 c 185
2001-10-08 20:10:02 C 20 54 06.27 +22 49 56.1 15.0 c 629
2001-10-08 20:12:18 C 20 54 07.06 +22 49 57.4 c 629
2001-10-08 20:14:14 C 20 54 07.83 +22 49 58.1 c 629
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)