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
2018-01-09 02:03:06 C 02 53 18.56 +34 19 31.8 U G96
2018-01-09 02:10:31 C 02 53 18.64 +34 19 29.3 U G96
2018-01-20 02:57:38 C 02 58 30.26 +32 59 48.2 U G96
2018-01-20 03:13:48 C 02 58 30.67 +32 59 43.4 U G96
2018-01-20 03:21:54 C 02 58 30.82 +32 59 42.5 U G96
2018-12-14 12:39:40 C 11 52 11.24 +04 08 01.6 V G96
2018-12-14 12:47:49 C 11 52 11.70 +04 07 57.3 V G96
2018-12-14 12:55:57 C 11 52 12.18 +04 07 53.3 V G96
2018-12-14 13:04:09 C 11 52 12.67 +04 07 49.3 V G96
2019-01-09 11:37:26 C 12 27 52.84 -01 20 50.8 V 703
2019-01-09 11:43:07 C 12 27 53.09 -01 20 54.4 V 703
2019-01-09 11:48:48 C 12 27 53.36 -01 20 57.1 V 703
2019-01-09 11:54:29 C 12 27 53.59 -01 21 01.5 V 703
2019-01-17 09:09:39 C 12 37 57.79 -03 11 31.6 V 703
2019-01-17 09:24:19 C 12 37 58.65 -03 11 39.4 V 703
2019-01-17 09:31:39 C 12 37 59.03 -03 11 45.4 V 703
2019-02-02 13:55:51 C 12 57 09.27 -07 29 36.9 V T08
2019-02-02 13:56:31 C 12 57 09.34 -07 29 36.3 V T08
2019-02-02 14:10:25 C 12 57 09.86 -07 29 46.8 V T08
2019-02-02 14:27:53 C 12 57 10.63 -07 30 00.9 V T08
2019-02-04 14:00:33 C 12 59 21.57 -08 05 48.6 V T05
2019-02-04 14:15:03 C 12 59 22.15 -08 05 59.1 V T05
2019-02-04 14:28:39 C 12 59 22.74 -08 06 09.9 V T05
2019-02-04 14:44:08 C 12 59 23.41 -08 06 21.8 V T05
2019-02-06 13:36:23 C 13 01 30.16 -08 42 52.3 V T08
2019-02-06 13:50:19 C 13 01 30.67 -08 43 03.1 V T08
2019-02-06 14:04:27 C 13 01 31.27 -08 43 14.5 V T08
2019-02-06 14:09:21 C 13 01 31.52 -08 43 17.1 V T08
2019-02-06 14:15:38 C 13 01 31.80 -08 43 22.9 V T08
2019-02-06 14:35:12 C 13 01 32.54 -08 43 39.3 V T08
2019-02-09 10:20:51 C 13 04 31.22 -09 38 54.1 V 703
2019-02-09 10:28:24 C 13 04 31.56 -09 39 00.7 V 703
2019-02-09 10:35:56 C 13 04 31.89 -09 39 06.8 V 703
2019-02-09 10:43:30 C 13 04 32.19 -09 39 12.8 V 703
2019-02-12 08:55:10 C 13 07 31.72 -10 39 50.3 V 703
2019-02-12 09:02:54 C 13 07 32.06 -10 39 57.6 V 703
2019-02-12 09:10:38 C 13 07 32.38 -10 40 04.3 V 703
2019-02-12 09:18:22 C 13 07 32.63 -10 40 11.6 V 703
2019-02-14 03:20:47 C 13 09 16.89 -11 18 25.7 V C95
2019-02-14 03:23:34 C 13 09 17.00 -11 18 28.7 V C95
2019-02-14 03:26:21 C 13 09 17.10 -11 18 31.2 V C95
2019-02-14 03:29:05 C 13 09 17.20 -11 18 33.6 V C95
2019-02-14 03:31:48 C 13 09 17.33 -11 18 36.0 V C95
2019-02-14 03:34:44 C 13 09 17.43 -11 18 38.9 V C95
2019-02-14 13:24:08 C 13 09 41.72 -11 27 44.0 V T08
2019-02-14 13:37:17 C 13 09 42.21 -11 27 56.9 V T08
2019-02-14 13:49:19 C 13 09 42.63 -11 28 09.0 V T08
2019-02-14 14:02:01 C 13 09 43.14 -11 28 19.7 V T08
2019-02-18 11:40:57 C 13 13 28.08 -13 00 08.5 q E89
2019-02-18 12:16:53 C 13 13 29.33 -13 00 47.5 q E89
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)