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
2019-12-03 11:22:06 C 03 42 36.85 +42 45 36.0 V T05
2019-12-03 11:37:23 C 03 42 35.53 +42 45 29.1 V T05
2019-12-16 04:26:50 C 03 20 34.99 +40 04 13.8 U I41
2019-12-16 05:07:53 C 03 20 32.65 +40 03 51.2 U I41
2019-12-16 05:12:33 C 03 20 32.39 +40 03 48.7 U I41
2019-12-16 06:45:11 C 03 20 27.13 +40 02 57.6 U I41
2020-01-01 07:00:52 C 03 07 45.648 +36 44 27.98 U F51
2020-01-01 07:17:25 C 03 07 45.383 +36 44 20.12 U F51
2020-01-01 07:33:46 C 03 07 45.127 +36 44 12.59 U F51
2020-01-03 03:55:24 C 03 07 14.94 +36 24 05.5 V G96
2020-01-03 04:03:31 C 03 07 14.84 +36 24 02.2 V G96
2020-01-03 04:11:36 C 03 07 14.74 +36 23 58.4 V G96
2020-01-03 04:19:43 C 03 07 14.65 +36 23 54.9 V G96
2020-11-26 15:07:37 C 11 34 12.046 +06 13 24.50 U F52
2020-11-26 15:13:07 C 11 34 12.403 +06 13 21.65 U F52
2020-11-26 15:18:38 C 11 34 12.763 +06 13 18.96 U F52
2020-12-21 12:50:08 C 12 13 19.40 +00 49 27.8 V G96
2020-12-21 12:59:02 C 12 13 19.96 +00 49 22.5 V G96
2020-12-21 13:07:54 C 12 13 20.55 +00 49 17.4 V G96
2020-12-21 13:16:46 C 12 13 21.11 +00 49 11.9 V G96
2021-01-13 11:54:11 C 12 49 09.56 -04 54 28.7 V G96
2021-01-13 12:01:38 C 12 49 10.03 -04 54 33.8 V G96
2021-01-13 12:09:02 C 12 49 10.50 -04 54 38.8 V G96
2021-01-13 12:16:28 C 12 49 10.98 -04 54 44.1 V G96
2021-01-16 10:26:43 C 12 53 47.03 -05 43 48.9 V 703
2021-01-16 10:49:06 C 12 53 48.49 -05 44 04.0 V 703
2021-02-06 10:58:58 C 13 28 07.74 -12 41 49.7 V 703
2021-02-06 11:14:17 C 13 28 08.63 -12 42 05.1 V 703
2021-02-06 11:21:57 C 13 28 09.04 -12 42 13.4 V 703
2021-02-07 10:24:07 C 13 29 49.51 -13 05 12.7 V 703
2021-02-07 10:31:55 C 13 29 50.07 -13 05 20.1 V 703
2021-02-07 10:47:33 C 13 29 51.36 -13 05 36.9 V 703
2021-02-07 15:26:07 C 13 30 11.21 -13 10 15.2 V T08
2021-02-07 15:32:05 C 13 30 11.65 -13 10 21.0 V T08
2021-02-07 15:52:00 C 13 30 13.01 -13 10 41.7 V T08
2021-02-07 15:59:52 C 13 30 13.60 -13 10 50.0 V T08
2021-02-09 10:29:22 C 13 33 21.37 -13 54 43.5 V G96
2021-02-09 10:36:48 C 13 33 21.90 -13 54 51.3 V G96
2021-02-09 10:44:14 C 13 33 22.43 -13 54 59.1 V G96
2021-02-09 10:51:40 C 13 33 22.96 -13 55 07.0 V G96
2021-02-10 13:47:24 C 13 35 23.465 -14 23 47.29 U F51
2021-02-10 14:04:52 C 13 35 24.724 -14 24 06.20 U F51
2021-02-10 14:22:05 C 13 35 25.956 -14 24 24.82 U F51
2021-02-11 13:18:14 C 13 37 09.92 -14 49 27.2 V T08
2021-02-11 13:20:54 C 13 37 10.16 -14 49 29.7 V T08
2021-02-11 13:44:27 C 13 37 11.85 -14 49 55.5 V T08
2021-02-11 13:48:26 C 13 37 12.12 -14 50 00.0 V T08
2021-02-12 09:48:29 C 13 38 43.72 -15 12 20.4 V 703
2021-02-12 09:55:50 C 13 38 44.30 -15 12 28.2 V 703
2021-02-12 10:03:10 C 13 38 44.81 -15 12 36.4 V 703
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)