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
2004-10-10 18:35:46 C 04 01 28.79 -57 54 24.6 r E12
2004-10-10 18:37:06 C 04 01 29.31 -57 54 25.8 r E12
2004-10-10 18:38:26 C 04 01 29.79 -57 54 26.4 r E12
2004-10-11 18:22:52 C 04 10 18.09 -58 18 16.6 r E12
2004-10-11 18:29:02 C 04 10 20.21 -58 18 22.9 r E12
2004-10-11 18:32:08 C 04 10 21.34 -58 18 25.6 r E12
2004-10-12 17:27:29 C 04 19 20.52 -58 39 30.9 r E12
2004-10-12 17:40:18 C 04 19 25.24 -58 39 41.4 r E12
2004-10-12 17:53:05 C 04 19 29.94 -58 39 52.6 r E12
2004-10-12 18:05:50 C 04 19 34.74 -58 40 02.9 r E12
2004-10-23 16:11:47 C 06 34 01.44 -58 34 49.1 r E12
2004-10-23 16:26:21 C 06 34 09.64 -58 34 32.3 r E12
2004-10-23 16:40:54 C 06 34 17.83 -58 34 15.2 r E12
2004-10-23 16:55:29 C 06 34 25.99 -58 33 57.7 r E12
2004-10-25 18:15:16 C 07 03 56.40 -57 13 49.0 r E12
2004-10-25 18:16:07 C 07 03 56.85 -57 13 46.8 r E12
2004-10-25 18:16:57 C 07 03 57.30 -57 13 46.6 r E12
2004-10-25 18:17:47 C 07 03 57.94 -57 13 44.6 r E12
2004-11-01 17:49:39 C 08 38 00.86 -48 31 21.0 r 413
2004-11-01 17:59:13 C 08 38 05.36 -48 30 42.0 r 413
2004-11-01 18:04:58 C 08 38 08.12 -48 30 18.5 r 413
2004-11-08 17:49:31 C 09 50 06.90 -34 38 57.8 o 413
2004-11-08 17:55:56 C 09 50 08.99 -34 38 23.4 o 413
2004-11-22 15:04:09 C 11 17 15.83 -07 32 30.1 F65
2004-11-22 15:05:57 C 11 17 16.13 -07 32 23.7 F65
2004-11-22 15:07:12 C 11 17 16.35 -07 32 18.6 F65
2004-11-22 15:08:22 C 11 17 16.56 -07 32 14.1 F65
2004-11-22 15:10:28 C 11 17 16.90 -07 32 06.7 F65
2004-11-22 15:11:32 C 11 17 17.11 -07 32 02.3 F65
2004-11-22 15:12:48 C 11 17 17.31 -07 31 57.3 F65
2004-11-22 15:13:53 C 11 17 17.51 -07 31 53.6 F65
2005-01-07 11:40:50 C 13 10 38.22 +22 14 50.0 d 291
2005-01-07 11:52:57 C 13 10 38.64 +22 14 59.8 d 291
2005-01-07 12:06:06 C 13 10 39.04 +22 15 10.4 d 291
2005-01-16 13:41:40 C 13 16 48.64 +25 05 47.9 o F65
2005-01-16 13:45:10 C 13 16 48.68 +25 05 50.9 o F65
2005-01-16 13:54:32 C 13 16 48.74 +25 05 58.4 o F65
2005-02-25 05:15:40 C 12 28 12.27 +34 59 02.2 r 649
2005-02-25 05:20:47 C 12 28 11.70 +34 59 02.3 r 649
2005-02-25 05:25:54 C 12 28 11.15 +34 59 05.0 r 649
2005-02-25 05:31:02 C 12 28 10.63 +34 59 05.2 r 649
2005-02-25 05:36:09 C 12 28 10.08 +34 59 06.4 r 649
2005-03-04 23:15:29 C 12 08 44.22 +35 07 07.6 r 941
2005-03-04 23:16:39 C 12 08 44.11 +35 07 07.4 r 941
2005-03-04 23:17:49 C 12 08 43.96 +35 07 07.4 r 941
2005-03-04 23:18:59 C 12 08 43.82 +35 07 07.4 r 941
2009-07-19 13:14:34 C 19 58 50.64 -36 05 17.4 o 474
2009-07-19 13:22:29 C 19 58 49.88 -36 05 22.6 o 474
2009-07-19 13:30:20 C 19 58 49.16 -36 05 27.9 o 474
2009-07-19 13:38:10 C 19 58 48.45 -36 05 32.9 o 474