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
2003-04-29 04:16:49 C 08 37 46.01 +13 53 54.9 19.0 c 704
2003-04-29 04:17:19 C 08 37 46.10 +13 53 52.6 19.1 c 704
2003-04-29 04:34:19 C 08 37 46.41 +13 53 48.9 19.1 c 704
2003-04-29 04:34:48 C 08 37 46.45 +13 53 47.0 18.9 c 704
2003-05-06 03:15:02 C 08 42 38.45 +12 46 29.6 d 703
2003-05-06 03:29:09 C 08 42 39.01 +12 46 22.8 d 703
2003-05-06 03:43:19 C 08 42 39.40 +12 46 17.1 d 703
2003-05-06 03:57:25 C 08 42 39.82 +12 46 11.7 d 703
2003-05-25 03:37:28 C 09 03 51.30 +09 07 37.3 d 703
2003-05-25 03:44:44 C 09 03 51.72 +09 07 33.1 d 703
2003-05-25 03:52:00 C 09 03 52.13 +09 07 29.6 d 703
2003-05-25 03:59:21 C 09 03 52.58 +09 07 24.4 d 703
2003-09-17 18:36:35 C 12 27 31.24 +63 41 28.9 A30
2003-09-17 18:39:03 C 12 27 32.36 +63 42 06.5 A30
2003-09-17 18:41:46 C 12 27 34.20 +63 42 58.8 A30
2003-09-18 19:23:45 C 12 48 05.44 +71 22 13.5 c 127
2003-09-18 19:25:45 C 12 48 07.61 +71 22 49.3 c 127
2003-09-18 19:34:09 C 12 48 17.52 +71 25 18.2 c 127
2003-09-21 11:14:39 C 18 03 15.08 +84 42 22.3 300
2003-09-21 11:16:04 C 18 03 29.84 +84 42 19.6 300
2003-09-21 11:17:30 C 18 03 45.43 +84 42 18.0 300
2003-09-21 11:18:55 C 18 04 00.58 +84 42 15.7 300
2003-09-21 11:20:21 C 18 04 15.70 +84 42 14.0 300
2003-09-21 11:21:45 C 18 04 30.73 +84 42 11.6 300
2003-09-21 11:23:09 C 18 04 45.81 +84 42 09.5 300
2003-09-21 11:24:33 C 18 05 00.81 +84 42 07.1 300
2003-09-21 11:27:23 C 18 05 31.09 +84 42 02.8 300
2003-09-21 20:11:28 C 19 31 30.59 +84 05 09.3 c 127
2003-09-21 20:14:00 C 19 31 51.40 +84 04 52.0 c 127
2003-09-21 20:16:39 C 19 32 13.22 +84 04 34.6 c 127
2003-09-22 18:49:07 C 21 29 52.84 +80 31 25.7 d 118
2003-09-22 18:50:43 C 21 29 57.30 +80 31 08.6 d 118
2003-09-22 18:55:27 C 21 30 10.63 +80 30 18.0 d 118
2003-09-22 18:57:33 C 21 30 16.56 +80 29 55.6 d 118
2003-09-23 18:31:41 C 22 15 39.63 +76 13 36.0 o 084
2003-09-24 18:46:26 C 22 37 41.77 +72 07 03.2 o 084
2003-09-24 19:11:32 C 22 38 02.81 +72 03 14.6 A30
2003-09-24 19:19:16 C 22 38 07.35 +72 02 03.1 A30
2003-09-24 19:21:21 C 22 38 08.49 +72 01 43.8 A30
2003-09-24 19:23:07 C 22 38 09.58 +72 01 26.8 A30
2003-09-24 19:24:15 C 22 38 10.26 +72 01 16.1 A30
2003-09-24 19:25:39 C 22 38 11.15 +72 01 02.5 A30
2003-09-24 19:28:43 C 22 38 12.93 +72 00 34.1 A30
2003-09-24 19:30:48 C 22 38 14.19 +72 00 14.2 A30
2003-09-24 19:32:36 C 22 38 15.10 +71 59 57.5 A30
2003-09-24 19:35:03 C 22 38 16.58 +71 59 34.5 A30
2003-09-25 00:27:06 C 22 40 59.15 +71 12 56.7 d 118
2003-09-25 00:27:48 C 22 40 59.51 +71 12 50.3 d 118
2003-09-25 00:29:09 C 22 41 00.28 +71 12 37.1 d 118
2003-09-25 00:29:51 C 22 41 00.62 +71 12 30.4 d 118
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)