172974 (2005 YW55)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2464808739 ± 3.21e-08
Semi-major axis (a)1.6370166952 AU ± 4.04e-09
Inclination (i)8.47291926° ± 4.96e-06
Long. of Asc. Node (Ω)239.35197615° ± 2.23e-05
Arg. of Perihelion (ω)256.74539085° ± 2.74e-05
Mean Anomaly (M)162.84422405° ± 2.05e-05
Mean Motion (n)0.4705790766°/day ± 1.74e-09
Perihelion dist (q)1.23352339 AU ± 5.27e-08
Aphelion dist (Q)2.04051000 AU ± 5.28e-08
Orbital Period2.09449662 yr ± 7.75e-09
Physical Parameters
H (abs. magnitude)19.40
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.399″
Uncertainty0
Orbit TypeAmor
MOID0.293200 AU
Observations Used220
Oppositions12
Arc Total2002-2025
First Observation Used2002-06-04
Last Observation Used2025-06-22
Observations (226)
Date Type RA Dec Mag Band Observatory
2025-03-01 15:25:51 C 15 56 36.254 -30 05 23.63 X F52
2025-05-19 08:24:44 C 16 02 58.290 -20 28 46.09 V G96
2025-05-19 08:32:22 C 16 02 57.782 -20 28 41.20 V G96
2025-05-19 08:40:00 C 16 02 57.311 -20 28 36.55 V G96
2025-05-19 08:47:37 C 16 02 56.814 -20 28 31.73 V G96
2025-05-21 11:31:10 C 15 59 52.029 -19 57 13.28 X F51
2025-05-21 11:38:40 C 15 59 51.539 -19 57 08.67 X F51
2025-05-21 11:46:12 C 15 59 51.060 -19 57 03.98 X F51
2025-05-23 08:44:23 C 15 57 11.111 -19 29 41.00 X F51
2025-05-23 09:27:21 C 15 57 08.420 -19 29 15.30 X F51
2025-05-23 09:47:19 C 15 57 07.168 -19 29 03.31 X F51
2025-05-23 10:08:11 C 15 57 05.854 -19 28 50.70 X F51
2025-05-27 08:46:56 C 15 51 42.714 -18 32 52.77 X F52
2025-05-27 09:16:13 C 15 51 41.001 -18 32 35.96 X F52
2025-05-27 09:30:52 C 15 51 40.147 -18 32 27.51 X F52
2025-06-16 07:22:25 C 15 32 58.002 -14 52 02.99 X F51
2025-06-16 07:51:11 C 15 32 57.281 -14 51 53.62 X F51
2025-06-16 08:05:33 C 15 32 56.926 -14 51 48.86 X F51
2025-06-20 06:45:22 C 15 31 15.506 -14 23 28.43 V G96
2025-06-20 06:52:25 C 15 31 15.330 -14 23 26.74 V G96
2025-06-20 06:59:29 C 15 31 15.265 -14 23 24.72 V G96
2025-06-20 07:06:33 C 15 31 15.114 -14 23 23.21 V G96
2025-06-22 06:44:01 C 15 30 40.264 -14 11 03.01 X F52
2025-06-22 07:01:37 C 15 30 40.031 -14 10 58.90 X F52
2025-06-22 07:19:15 C 15 30 39.795 -14 10 54.62 X F52
2025-06-22 07:36:48 C 15 30 39.545 -14 10 50.30 X F52