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
2002-06-04 05:44:49 C 16 44 20.48 -17 32 39.2 o 644
2002-06-04 07:15:15 C 16 44 14.54 -17 31 59.4 o 644
2002-06-04 08:45:11 C 16 44 08.68 -17 31 19.0 o 644
2004-04-25 07:13:55 C 14 32 53.38 -25 03 43.2 19.1 c 704
2004-04-25 07:28:54 C 14 32 52.68 -25 03 30.4 19.6 c 704
2004-04-25 07:44:04 C 14 32 51.89 -25 03 17.4 19.7 c 704
2004-04-25 07:59:28 C 14 32 51.00 -25 03 03.4 19.8 c 704
2004-04-27 07:19:26 C 14 30 34.38 -24 21 24.8 19.6 c 704
2004-04-27 07:19:41 C 14 30 34.34 -24 21 25.3 19.0 c 704
2004-04-27 07:34:07 C 14 30 33.59 -24 21 12.5 19.2 c 704
2004-04-27 07:34:43 C 14 30 33.51 -24 21 12.0 19.2 c 704
2004-04-27 07:48:50 C 14 30 32.78 -24 21 00.1 19.5 c 704
2004-04-27 07:49:50 C 14 30 32.81 -24 20 58.4 19.4 c 704
2004-05-16 06:44:12 C 14 13 28.37 -17 56 20.0 19.8 c 704
2004-05-16 06:57:18 C 14 13 28.05 -17 56 10.9 19.9 c 704
2004-05-16 07:10:23 C 14 13 27.65 -17 56 00.2 19.8 c 704
2004-05-16 07:23:32 C 14 13 27.38 -17 55 50.2 19.6 c 704
2004-05-23 05:59:31 C 14 10 34.48 -16 02 40.6 c 691
2004-05-23 06:38:56 C 14 10 33.91 -16 02 17.0 c 691
2004-05-23 07:25:22 C 14 10 33.22 -16 01 48.4 c 691
2005-10-30 11:55:12 C 07 17 37.82 +20 12 41.1 r G96
2005-10-30 12:00:00 C 07 17 38.25 +20 12 38.0 r G96
2005-10-30 12:04:43 C 07 17 38.72 +20 12 34.5 r G96
2005-10-30 12:09:25 C 07 17 39.15 +20 12 31.5 r G96
2005-12-21 13:15:37 C 08 50 49.56 -02 00 54.6 568
2005-12-22 11:46:06 C 08 51 46.86 -02 32 17.3 c 568
2005-12-22 11:57:14 C 08 51 47.25 -02 32 32.8 c 568
2005-12-22 12:08:28 C 08 51 47.64 -02 32 48.5 c 568
2005-12-22 12:19:35 C 08 51 48.04 -02 33 04.1 c 568
2005-12-22 12:30:46 C 08 51 48.44 -02 33 19.8 c 568
2005-12-22 12:41:54 C 08 51 48.83 -02 33 35.2 c 568
2005-12-22 12:53:01 C 08 51 49.20 -02 33 50.7 c 568
2005-12-28 09:35:22 C 08 56 56.07 -05 50 56.0 r 703
2005-12-28 09:48:34 C 08 56 56.32 -05 51 14.0 r 703
2005-12-28 10:02:10 C 08 56 56.79 -05 51 33.9 r 703
2005-12-28 10:15:29 C 08 56 57.19 -05 51 52.3 r 703
2005-12-28 11:02:11 C 08 56 58.34 -05 52 57.2 r 703
2005-12-28 11:12:21 C 08 56 58.56 -05 53 10.7 r 703
2005-12-28 11:22:38 C 08 56 58.84 -05 53 26.0 r 703
2005-12-28 11:32:37 C 08 56 59.13 -05 53 39.2 r 703
2005-12-28 13:39:30 C 08 57 04.10 -05 56 07.7 o 474
2005-12-28 13:42:40 C 08 57 04.17 -05 56 12.4 o 474
2005-12-28 13:47:09 C 08 57 04.28 -05 56 18.4 o 474
2005-12-28 14:00:49 C 08 57 04.58 -05 56 36.7 o 474
2005-12-28 17:29:48 C 08 57 10.44 -06 01 33.5 r E12
2005-12-28 17:38:03 C 08 57 10.65 -06 01 45.3 r E12
2005-12-28 17:43:20 C 08 57 10.80 -06 01 51.9 r E12
2005-12-29 07:18:29 C 08 57 36.76 -06 21 15.5 r 703
2005-12-29 07:29:49 C 08 57 37.05 -06 21 30.7 r 703
2005-12-29 07:41:00 C 08 57 37.31 -06 21 47.1 r 703