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
2017-02-21 08:53:58 C 12 40 36.44 -09 04 58.8 V G45
2017-02-21 08:57:04 C 12 40 36.41 -09 05 01.3 V G45
2017-02-21 09:54:34 C 12 40 35.89 -09 05 46.5 V G45
2017-02-21 09:56:25 C 12 40 35.88 -09 05 47.8 V G45
2017-02-21 10:52:26 C 12 40 35.37 -09 06 31.7 V G45
2017-02-21 10:54:40 C 12 40 35.34 -09 06 33.5 V G45
2017-02-21 11:47:21 C 12 40 34.87 -09 07 14.6 V G45
2017-02-21 11:49:11 C 12 40 34.88 -09 07 16.0 V G45
2017-02-21 12:31:11 C 12 40 34.53 -09 07 48.8 V G45
2017-02-21 12:31:20 C 12 40 34.50 -09 07 48.9 V G45
2017-02-22 10:09:02 C 12 40 26.21 -09 25 00.5 R G45
2017-02-22 10:09:26 C 12 40 26.21 -09 25 00.8 R G45
2017-02-22 10:16:11 C 12 40 26.14 -09 25 06.2 R G45
2017-02-22 10:16:40 C 12 40 26.12 -09 25 06.7 R G45
2017-02-22 10:23:07 C 12 40 26.05 -09 25 11.9 R G45
2017-02-22 10:23:37 C 12 40 26.05 -09 25 12.3 R G45
2017-02-22 10:30:16 C 12 40 25.98 -09 25 17.6 R G45
2017-02-22 10:31:43 C 12 40 25.95 -09 25 18.6 R G45
2017-02-22 10:37:24 C 12 40 25.89 -09 25 23.3 R G45
2017-02-22 10:44:36 C 12 40 25.80 -09 25 29.0 R G45
2017-02-22 10:45:05 C 12 40 25.81 -09 25 29.6 R G45
2017-02-22 11:54:10 C 12 40 25.754 -09 26 22.16 L F51
2017-02-22 12:11:54 C 12 40 25.537 -09 26 36.51 L F51
2017-02-22 12:29:40 C 12 40 25.326 -09 26 50.85 L F51
2017-02-22 14:50:18 C 12 40 23.60 -09 28 44.3 L T08
2017-02-22 15:10:21 C 12 40 23.38 -09 28 59.8 L T08
2017-02-22 15:30:13 C 12 40 23.12 -09 29 15.6 L T08
2017-02-22 15:50:16 C 12 40 22.89 -09 29 32.5 L T08
2017-02-24 09:09:53 C 12 39 57.92 -10 03 38.8 q 703
2017-02-24 09:19:48 C 12 39 57.73 -10 03 46.9 q 703
2017-02-24 09:29:41 C 12 39 57.58 -10 03 55.7 q 703
2017-02-24 09:39:35 C 12 39 57.42 -10 04 03.5 q 703
2017-02-24 11:32:33 C 12 39 55.47 -10 05 39.1 R G45
2017-02-24 11:33:13 C 12 39 55.47 -10 05 39.4 R G45
2017-02-24 11:39:50 C 12 39 55.38 -10 05 45.4 R G45
2017-02-24 11:40:31 C 12 39 55.36 -10 05 45.9 R G45
2017-02-24 11:46:50 C 12 39 55.26 -10 05 50.9 R G45
2017-02-24 11:47:36 C 12 39 55.25 -10 05 51.7 R G45
2017-02-24 11:54:04 C 12 39 55.15 -10 05 56.7 R G45
2017-02-24 11:54:45 C 12 39 55.14 -10 05 57.5 R G45
2017-02-24 12:01:10 C 12 39 55.03 -10 06 03.0 R G45
2017-02-24 12:01:51 C 12 39 55.03 -10 06 03.5 R G45
2017-02-24 12:08:28 C 12 39 54.93 -10 06 09.1 R G45
2017-02-24 12:09:08 C 12 39 54.91 -10 06 09.8 R G45
2017-03-02 09:29:59 C 12 36 57.35 -12 15 10.9 R G45
2017-03-02 09:36:58 C 12 36 57.11 -12 15 18.0 R G45
2017-03-02 09:44:10 C 12 36 56.85 -12 15 25.0 R G45
2017-03-02 09:51:13 C 12 36 56.63 -12 15 32.0 R G45
2017-03-02 09:58:36 C 12 36 56.37 -12 15 39.2 R G45
2017-03-02 10:05:45 C 12 36 56.13 -12 15 46.2 R G45
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)