1999 CG9

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.0635514374 ± 3.75e-05
Semi-major axis (a)1.0619013368 AU ± 3.49e-05
Inclination (i)5.15559521° ± 3.67e-03
Long. of Asc. Node (Ω)138.48784298° ± 1.64e-02
Arg. of Perihelion (ω)315.61664669° ± 8.35e-02
Mean Anomaly (M)218.53313360° ± 2.61e-02
Mean Motion (n)0.9007121578°/day ± 4.44e-05
Perihelion dist (q)0.99441598 AU ± 5.15e-05
Aphelion dist (Q)1.12938669 AU ± 5.45e-05
Orbital Period1.09427443 yr ± 5.40e-05
Physical Parameters
H (abs. magnitude)25.20
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.772″
Uncertainty2
Orbit TypeApollo
MOID0.023724 AU
Observations Used46
Oppositions1
Arc Total1999-1999
First Observation Used1999-02-10
Last Observation Used1999-03-06
Observations (47)
Date Type RA Dec Mag Band Observatory
1999-02-10 05:07:16 C 09 18 37.85 +22 32 14.3 19.0 a 704
1999-02-10 05:38:25 C 09 18 41.18 +22 36 23.2 19.2 a 704
1999-02-10 06:09:02 C 09 18 44.31 +22 40 30.2 18.9 a 704
1999-02-10 06:40:13 C 09 18 47.53 +22 44 35.5 19.3 a 704
1999-02-10 07:10:27 C 09 18 50.52 +22 48 32.8 19.4 a 704
1999-02-11 04:42:51 C 09 23 03.98 +25 30 55.6 18.5 a 704
1999-02-11 04:43:32 C 09 23 04.03 +25 31 00.6 18.9 a 704
1999-02-11 04:44:04 C 09 23 04.08 +25 31 02.4 18.6 a 704
1999-02-11 04:57:50 C 09 23 05.69 +25 32 49.4 a 704
1999-02-11 04:58:31 C 09 23 05.69 +25 32 53.3 18.9 a 704
1999-02-11 04:59:03 C 09 23 05.67 +25 32 59.3 18.7 a 704
1999-02-11 05:12:49 C 09 23 07.36 +25 34 43.8 a 704
1999-02-11 05:13:31 C 09 23 07.20 +25 34 47.2 19.2 a 704
1999-02-11 05:14:02 C 09 23 07.37 +25 34 52.0 18.9 a 704
1999-02-11 05:28:54 C 09 23 08.92 +25 36 43.6 19.1 a 704
1999-02-11 05:29:05 C 09 23 09.02 +25 36 44.6 a 704
1999-02-11 05:42:52 C 09 23 10.05 +25 38 27.9 a 704
1999-02-11 05:43:23 C 09 23 10.24 +25 38 31.3 19.0 a 704
1999-02-11 05:44:05 C 09 23 10.24 +25 38 38.6 a 704
1999-02-13 14:05:14 C 09 33 13.35 +31 58 32.8 422
1999-02-13 14:07:17 C 09 33 13.51 +31 58 45.6 422
1999-02-14 05:29:29 C 09 36 05.96 +33 22 40.6 a 658
1999-02-14 05:31:25 C 09 36 06.19 +33 22 51.4 a 658
1999-02-14 05:34:24 C 09 36 06.57 +33 23 09.0 a 658
1999-02-14 22:10:39 C 09 38 53.28 +34 55 33.8 z 587
1999-02-14 22:22:05 C 09 38 54.58 +34 56 37.3 z 587
1999-02-15 05:55:50 C 09 40 16.18 +35 36 04.9 a 658
1999-02-15 05:58:07 C 09 40 16.39 +35 36 17.7 a 658
1999-02-15 06:00:50 C 09 40 16.69 +35 36 33.3 a 658
1999-02-15 19:49:41 C 09 42 39.10 +36 46 15.1 046
1999-02-15 19:51:17 C 09 42 39.37 +36 46 22.8 046
1999-02-15 19:57:08 C 09 42 40.03 +36 46 54.8 046
1999-02-15 20:01:37 C 09 42 40.60 +36 47 17.9 046
1999-02-15 20:07:52 C 09 42 41.32 +36 47 51.3 046
1999-02-15 20:30:33 C 09 42 43.72 +36 49 47.0 557
1999-02-15 20:32:23 C 09 42 43.88 +36 49 55.7 557
1999-02-15 20:34:16 C 09 42 44.11 +36 50 06.1 557
1999-02-15 20:36:05 C 09 42 44.31 +36 50 14.5 557
1999-02-18 05:23:52 C 09 51 56.40 +41 01 50.5 19.7 a 704
1999-02-18 05:54:42 C 09 51 58.94 +41 03 57.8 18.7 a 704
1999-02-18 06:25:26 C 09 52 01.47 +41 06 03.7 19.8 a 704
1999-02-18 06:56:00 C 09 52 04.00 +41 08 04.3 19.5 a 704
1999-03-05 07:37:22 C 10 37 49.72 +52 52 09.5 658
1999-03-05 07:47:57 C 10 37 50.23 +52 52 17.4 658
1999-03-05 07:59:34 C 10 37 50.84 +52 52 24.2 658
1999-03-06 06:34:31 C 10 40 03.92 +53 06 57.6 658
1999-03-06 06:47:32 C 10 40 04.42 +53 07 07.1 658