523972 (1999 CW8)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5979684734 ± 2.82e-08
Semi-major axis (a)2.2374097994 AU ± 4.12e-09
Inclination (i)33.63080970° ± 1.72e-05
Long. of Asc. Node (Ω)316.78441425° ± 6.03e-06
Arg. of Perihelion (ω)262.24499575° ± 1.61e-05
Mean Anomaly (M)341.15817348° ± 1.09e-05
Mean Motion (n)0.2945058815°/day ± 8.13e-10
Perihelion dist (q)0.89950928 AU ± 6.32e-08
Aphelion dist (Q)3.57531032 AU ± 6.35e-08
Orbital Period3.34671171 yr ± 9.24e-09
Physical Parameters
H (abs. magnitude)18.66
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.434″
Uncertainty0
Orbit TypeApollo
MOID0.235932 AU
Observations Used205
Oppositions14
Arc Total1999-2019
First Observation Used1999-02-12
Last Observation Used2019-09-01
Observations (217)
Date Type RA Dec Mag Band Observatory
1999-02-16 12:44:05 C 08 05 28.22 +08 11 48.4 426
1999-02-16 12:48:53 C 08 05 26.95 +08 11 28.9 426
1999-02-16 13:14:22 C 08 05 20.40 +08 09 20.5 z 402
1999-02-16 13:16:12 C 08 05 19.90 +08 09 13.4 z 402
1999-02-16 13:18:01 C 08 05 19.45 +08 09 06.4 z 402
1999-02-18 22:53:10 C 07 50 42.76 +04 21 28.6 z 104
1999-02-18 22:55:44 C 07 50 42.02 +04 21 17.7 z 104
1999-02-18 22:58:24 C 07 50 41.25 +04 21 07.3 z 104
1999-02-19 12:18:57 C 07 47 18.24 +03 26 58.9 z 402
1999-02-19 12:20:45 C 07 47 17.79 +03 26 52.6 z 402
1999-02-19 12:22:34 C 07 47 17.32 +03 26 45.1 z 402
1999-02-25 05:25:05 C 07 12 49.35 -06 00 00.2 a 658
1999-02-25 05:27:38 C 07 12 48.72 -06 00 11.2 a 658
1999-02-25 05:29:38 C 07 12 48.23 -06 00 18.4 a 658
1999-02-25 20:43:15 C 07 09 04.61 -07 02 28.5 z 587
1999-02-25 20:47:44 C 07 09 03.56 -07 02 47.6 z 587
1999-03-16 11:24:00 C 05 37 37.08 -30 41 09.6 422
1999-03-16 11:25:14 C 05 37 36.90 -30 41 12.9 422
1999-03-16 11:26:25 C 05 37 36.71 -30 41 15.3 422
1999-06-24 18:03:04 C 00 36 33.23 -32 01 30.0 426
1999-06-24 18:12:07 C 00 36 32.15 -32 01 21.0 426
1999-06-24 18:21:04 C 00 36 31.02 -32 01 12.1 426
1999-06-24 18:30:01 C 00 36 29.84 -32 01 03.2 426
1999-07-02 18:56:57 C 00 10 50.26 -28 48 58.6 413
1999-07-02 19:00:09 C 00 10 49.79 -28 48 55.1 413
1999-07-02 19:04:29 C 00 10 49.15 -28 48 50.9 413
1999-08-04 17:20:34 C 21 56 09.94 -13 02 17.3 413
1999-08-04 17:23:08 C 21 56 09.53 -13 02 14.3 413
1999-08-12 06:30:50 C 21 29 37.41 -09 49 06.2 c 699
1999-08-12 07:00:12 C 21 29 33.48 -09 48 38.8 c 699
1999-08-12 07:29:33 C 21 29 29.50 -09 48 10.3 c 699
1999-09-01 11:40:28 C 20 44 32.18 -04 05 33.4 413
1999-09-01 11:51:18 C 20 44 31.56 -04 05 28.5 413
2006-10-25 06:28:08 C 22 07 52.715 +24 00 33.95 o 568
2006-10-25 06:33:29 C 22 07 52.652 +24 00 32.17 o 568
2006-10-25 06:38:49 C 22 07 52.586 +24 00 30.25 o 568
2006-10-25 06:44:09 C 22 07 52.518 +24 00 28.46 o 568
2006-11-28 06:02:58 C 22 14 15.463 +20 38 30.49 o 568
2006-11-28 06:50:28 C 22 14 16.524 +20 38 23.97 o 568
2006-11-28 07:00:55 C 22 14 16.763 +20 38 22.55 o 568
2006-11-28 07:11:13 C 22 14 17.000 +20 38 21.03 o 568
2008-12-06 10:53:57 C 09 50 35.91 +42 56 45.2 r G96
2008-12-06 11:10:26 C 09 50 36.31 +42 56 46.4 r G96
2008-12-06 11:35:19 C 09 50 36.78 +42 56 47.6 r G96
2008-12-06 11:56:07 C 09 50 37.24 +42 56 48.6 r G96
2008-12-31 07:40:13 C 09 45 58.90 +43 31 39.6 r 448
2008-12-31 08:33:08 C 09 45 56.42 +43 31 41.9 r 448
2008-12-31 09:25:42 C 09 45 53.81 +43 31 45.2 r 448
2009-01-16 07:30:40 C 09 14 38.43 +43 06 04.1 o H55
2009-01-16 07:37:21 C 09 14 37.59 +43 06 02.3 o H55