494697 (2004 SW55)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3339835777 ± 1.55e-08
Semi-major axis (a)1.4275687525 AU ± 4.66e-10
Inclination (i)8.78530517° ± 2.56e-06
Long. of Asc. Node (Ω)75.11716199° ± 1.62e-05
Arg. of Perihelion (ω)352.85626071° ± 1.62e-05
Mean Anomaly (M)112.35110450° ± 3.74e-06
Mean Motion (n)0.5778521403°/day ± 2.83e-10
Perihelion dist (q)0.95078423 AU ± 2.22e-08
Aphelion dist (Q)1.90435327 AU ± 2.22e-08
Orbital Period1.70567212 yr ± 8.36e-10
Physical Parameters
H (abs. magnitude)20.77
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.286″
Uncertainty0
Orbit TypeApollo
MOID0.031885 AU
Observations Used162
Oppositions7
Arc Total2004-2022
First Observation Used2004-09-24
Last Observation Used2022-02-24
Observations (175)
Date Type RA Dec Mag Band Observatory
2004-09-24 15:57:55 C 02 27 01.95 -49 10 26.1 r E12
2004-09-24 16:22:24 C 02 27 05.49 -49 11 01.7 r E12
2004-09-24 16:46:54 C 02 27 09.02 -49 11 37.8 r E12
2004-09-24 17:11:23 C 02 27 12.63 -49 12 14.3 r E12
2004-09-25 12:05:51 C 02 30 26.29 -49 40 07.5 r 413
2004-09-25 12:07:12 C 02 30 26.51 -49 40 09.9 r 413
2004-09-25 12:08:34 C 02 30 26.71 -49 40 12.0 r 413
2004-09-25 12:09:54 C 02 30 26.95 -49 40 14.3 r 413
2004-09-25 12:11:15 C 02 30 27.17 -49 40 16.3 r 413
2004-09-25 12:12:36 C 02 30 27.37 -49 40 18.5 r 413
2004-09-25 16:28:43 C 02 31 07.12 -49 46 54.7 r E12
2004-09-25 16:42:51 C 02 31 09.27 -49 47 15.6 r E12
2004-09-25 16:57:02 C 02 31 11.45 -49 47 36.1 r E12
2004-09-25 17:11:17 C 02 31 13.59 -49 47 57.0 r E12
2004-09-25 18:40:32 C 02 31 27.43 -49 50 04.6 r 413
2004-09-25 18:41:21 C 02 31 27.57 -49 50 05.8 r 413
2004-09-25 18:42:12 C 02 31 27.71 -49 50 07.1 r 413
2004-09-26 14:35:59 C 02 35 00.01 -50 19 40.2 r 413
2004-09-26 14:36:51 C 02 35 00.21 -50 19 41.5 r 413
2004-09-26 14:37:43 C 02 35 00.34 -50 19 42.7 r 413
2004-09-26 17:35:43 C 02 35 28.77 -50 24 07.1 r 413
2004-09-26 17:36:33 C 02 35 28.91 -50 24 08.3 r 413
2004-09-26 17:37:23 C 02 35 29.05 -50 24 09.5 r 413
2004-09-27 18:35:22 C 02 40 01.24 -51 00 55.3 r 413
2004-09-27 18:36:45 C 02 40 01.46 -51 00 57.3 r 413
2004-09-27 18:38:12 C 02 40 01.71 -51 00 58.9 r 413
2004-10-02 13:45:29 C 03 04 07.59 -53 46 41.4 c 474
2004-10-02 13:53:49 C 03 04 09.39 -53 46 53.4 c 474
2004-10-02 13:55:30 C 03 04 09.76 -53 46 55.9 c 474
2004-10-02 13:57:19 C 03 04 10.14 -53 46 58.5 c 474
2004-10-02 13:58:45 C 03 04 10.44 -53 47 00.6 c 474
2004-10-06 18:31:58 C 03 30 20.16 -56 02 11.1 r E12
2004-10-06 18:33:19 C 03 30 20.34 -56 02 12.0 r E12
2004-10-06 18:34:41 C 03 30 20.71 -56 02 13.7 r E12
2004-10-06 18:36:01 C 03 30 21.02 -56 02 15.4 r E12
2004-10-06 18:38:11 C 03 30 21.64 -56 02 17.9 r E12
2004-10-06 18:39:31 C 03 30 22.00 -56 02 19.2 r E12
2004-10-06 18:40:52 C 03 30 22.32 -56 02 21.0 r E12
2004-10-06 18:42:13 C 03 30 22.79 -56 02 22.8 r E12
2004-10-08 13:58:53 C 03 43 41.92 -56 55 31.6 r E17
2004-10-08 14:13:02 C 03 43 46.21 -56 55 49.5 r E17
2004-10-08 14:27:16 C 03 43 50.53 -56 56 08.1 r E17
2004-10-08 18:32:17 C 03 45 03.25 -57 01 00.8 r E12
2004-10-08 18:33:38 C 03 45 03.64 -57 01 01.2 r E12
2004-10-08 18:36:20 C 03 45 04.51 -57 01 03.1 r E12
2004-10-10 18:04:52 C 04 01 18.54 -57 53 54.4 r E12
2004-10-10 18:06:13 C 04 01 19.03 -57 53 55.9 r E12
2004-10-10 18:07:32 C 04 01 19.38 -57 53 56.9 r E12
2004-10-10 18:08:53 C 04 01 19.88 -57 53 58.7 r E12
2004-10-10 18:34:24 C 04 01 28.43 -57 54 23.3 r E12