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
2025-03-06 02:44:35 C 16 40 40.992 -35 59 27.10 V M22
2025-03-06 02:53:06 C 16 40 43.601 -35 59 39.44 V M22
2025-03-06 03:23:09 C 16 40 52.663 -36 00 22.54 V M22
2025-03-08 08:33:22 C 16 57 54.437 -37 13 58.51 V W68
2025-03-08 08:35:19 C 16 57 55.066 -37 14 00.96 V W68
2025-03-08 08:37:57 C 16 57 55.930 -37 14 04.85 V W68
2025-03-08 08:48:40 C 16 57 59.458 -37 14 19.07 V W68
2025-03-08 08:58:06 C 16 58 02.554 -37 14 31.92 V W68
2025-03-08 09:02:48 C 16 58 04.140 -37 14 38.18 V W68
2025-03-19 07:46:53 C 18 39 29.299 -41 02 37.00 V W68
2025-03-19 07:59:45 C 18 39 34.699 -41 02 40.78 V W68
2025-03-19 08:16:44 C 18 39 42.024 -41 02 45.20 V W68
2025-03-19 09:44:59 C 18 40 19.354 -41 03 09.25 V W68
2025-07-26 14:20:19 C 04 12 24.942 +27 57 01.07 X F51
2025-07-26 14:33:27 C 04 12 26.246 +27 57 08.56 X F51
2025-07-26 14:40:00 C 04 12 26.899 +27 57 12.23 X F51
2025-10-01 10:35:45 C 06 02 26.401 +38 23 28.21 V G96
2025-10-01 10:44:23 C 06 02 26.606 +38 23 31.34 V G96
2025-10-01 10:52:59 C 06 02 26.783 +38 23 34.19 V G96
2025-10-24 08:51:20 C 06 00 49.950 +41 43 07.10 V G96
2025-10-24 08:58:48 C 06 00 49.700 +41 43 10.20 V G96
2025-10-24 09:06:17 C 06 00 49.440 +41 43 13.00 V G96
2025-11-03 07:46:28 C 05 49 48.353 +43 02 51.68 V G96
2025-11-03 07:54:02 C 05 49 47.849 +43 02 54.28 V G96
2025-11-03 08:01:37 C 05 49 47.413 +43 02 56.29 V G96
2025-11-03 08:09:11 C 05 49 46.949 +43 02 58.81 V G96
2025-11-29 11:00:19 C 04 54 25.169 +44 08 49.81 V T08
2025-11-29 11:06:14 C 04 54 24.540 +44 08 48.95 V T08
2025-11-29 11:14:47 C 04 54 23.659 +44 08 48.12 V T08
2025-11-29 11:30:35 C 04 54 22.027 +44 08 45.71 V T08
2025-12-18 05:44:56 C 04 12 50.800 +41 47 58.40 V G96
2025-12-18 05:52:44 C 04 12 50.170 +41 47 54.90 V G96
2025-12-18 06:02:09 C 04 12 49.480 +41 47 50.90 V G96
2025-12-18 06:11:59 C 04 12 48.720 +41 47 46.50 V G96
2025-12-27 19:44:48 B 03 58 24.156 +40 02 24.79 q Y84
2025-12-27 20:02:11 B 03 58 23.239 +40 02 16.91 q Y84
2025-12-27 20:17:45 B 03 58 22.373 +40 02 09.85 q Y84
2026-01-07 03:56:23 C 03 49 01.693 +38 08 34.40 V G96
2026-01-07 04:21:44 C 03 49 01.016 +38 08 22.78 V G96
2026-01-07 04:34:38 C 03 49 00.671 +38 08 17.09 V G96
2026-01-07 04:40:49 C 03 49 00.516 +38 08 14.28 V G96
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)