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
2021-02-12 10:10:30 C 13 38 45.40 -15 12 45.3 V 703
2021-02-15 12:50:20 C 13 44 35.72 -16 40 02.3 V T08
2021-02-15 12:53:40 C 13 44 35.98 -16 40 07.1 V T08
2021-02-15 13:09:26 C 13 44 37.18 -16 40 26.1 V T08
2021-02-15 13:22:04 C 13 44 38.16 -16 40 41.5 V T08
2021-02-17 04:37:29 C 13 47 49.36 -17 29 14.1 o W92
2021-02-17 05:00:48 C 13 47 51.16 -17 29 44.5 o W92
2021-02-19 10:44:33 C 13 52 20.36 -18 40 15.3 V 703
2021-02-19 10:52:11 C 13 52 20.96 -18 40 25.7 V 703
2021-02-19 10:59:48 C 13 52 21.60 -18 40 36.0 V 703
2021-02-19 11:07:27 C 13 52 22.26 -18 40 46.1 V 703
2021-02-22 15:12:56 C 13 59 04.90 -20 28 07.5 V T08
2021-02-22 15:16:54 C 13 59 05.22 -20 28 13.1 V T08
2021-02-22 15:18:14 C 13 59 05.36 -20 28 15.3 V T08
2021-02-22 15:22:53 C 13 59 05.73 -20 28 22.2 V T08
2021-02-22 15:27:31 C 13 59 06.15 -20 28 29.3 V T08
2021-02-22 15:30:51 C 13 59 06.44 -20 28 33.6 V T08
2021-02-22 15:55:18 C 13 59 08.55 -20 29 09.8 V T08
2021-02-26 13:15:40 C 14 08 06.97 -22 55 37.8 V T08
2021-02-26 13:19:39 C 14 08 07.39 -22 55 44.5 V T08
2021-02-26 13:23:38 C 14 08 07.74 -22 55 51.0 V T08
2021-02-26 13:30:56 C 14 08 08.48 -22 56 03.3 V T08
2021-03-06 13:57:36 C 14 30 29.87 -29 03 10.5 V T08
2021-03-06 14:03:15 C 14 30 30.59 -29 03 22.9 V T08
2021-03-06 14:48:11 C 14 30 36.37 -29 05 00.9 V T08
2021-03-06 14:56:48 C 14 30 37.51 -29 05 19.3 V T08
2021-03-23 06:33:25 C 16 03 13.99 -48 15 19.0 q Y00
2021-03-23 06:35:28 C 16 03 14.66 -48 15 27.2 q Y00
2021-03-23 06:37:35 C 16 03 15.50 -48 15 37.0 q Y00
2021-04-08 09:08:53 C 20 49 44.566 -57 50 41.65 V W57
2021-04-08 09:42:16 C 20 50 11.606 -57 49 29.62 V W57
2021-06-30 11:06:56 C 02 54 56.29 +17 08 42.2 U I41
2021-06-30 11:09:55 C 02 54 56.59 +17 08 45.5 U I41
2021-06-30 11:12:54 C 02 54 56.95 +17 08 48.6 U I41
2021-06-30 11:15:54 C 02 54 57.26 +17 08 51.8 U I41
2021-07-01 11:05:02 C 02 57 33.40 +17 34 26.2 U I41
2021-07-01 11:08:38 C 02 57 33.80 +17 34 30.0 U I41
2021-07-01 11:12:14 C 02 57 34.19 +17 34 34.0 U I41
2021-07-01 11:15:50 C 02 57 34.58 +17 34 37.7 U I41
2021-07-01 11:19:26 C 02 57 34.98 +17 34 41.6 U I41
2021-07-07 11:08:18 C 03 13 11.34 +20 00 19.1 U I41
2021-07-07 11:11:53 C 03 13 11.71 +20 00 22.7 U I41
2021-07-07 11:15:26 C 03 13 12.10 +20 00 26.1 U I41
2021-07-07 11:19:01 C 03 13 12.49 +20 00 29.8 U I41
2021-07-07 11:22:37 C 03 13 12.86 +20 00 32.9 U I41
2021-07-08 11:11:57 C 03 15 46.62 +20 23 16.2 U I41
2021-07-08 11:15:37 C 03 15 47.00 +20 23 19.3 U I41
2021-07-08 11:19:14 C 03 15 47.38 +20 23 23.2 U I41
2021-07-08 11:22:54 C 03 15 47.79 +20 23 26.4 U I41
2021-07-08 11:26:33 C 03 15 48.18 +20 23 29.8 U I41
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)