353938 (1998 QR15)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5584874298 ± 1.21e-08
Semi-major axis (a)2.7690201995 AU ± 1.29e-09
Inclination (i)9.44754907° ± 1.97e-06
Long. of Asc. Node (Ω)320.07138133° ± 8.24e-06
Arg. of Perihelion (ω)57.05125124° ± 1.39e-05
Mean Anomaly (M)320.81880749° ± 1.91e-06
Mean Motion (n)0.2139060610°/day ± 1.49e-10
Perihelion dist (q)1.22255723 AU ± 3.36e-08
Aphelion dist (Q)4.31548317 AU ± 3.37e-08
Orbital Period4.60775295 yr ± 3.22e-09
Physical Parameters
H (abs. magnitude)18.33
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.364″
Uncertainty0
Orbit TypeAmor
MOID0.262430 AU
Observations Used1447
Oppositions19
Arc Total1998-2022
First Observation Used1998-08-17
Last Observation Used2022-01-22
Observations (1981)
Date Type RA Dec Mag Band Observatory
1998-08-17 06:16:13 C 22 13 56.75 -08 21 39.1 17.4 a 704
1998-08-17 06:46:28 C 22 13 56.08 -08 21 02.6 17.8 a 704
1998-08-17 07:16:39 C 22 13 55.37 -08 20 27.8 17.8 a 704
1998-08-17 07:46:50 C 22 13 54.73 -08 19 51.0 17.7 a 704
1998-08-17 08:17:06 C 22 13 54.05 -08 19 15.1 a 704
1998-08-23 08:11:43 C 22 11 08.41 -05 14 26.4 17.2 a 704
1998-08-23 08:28:58 C 22 11 07.89 -05 14 02.1 17.6 a 704
1998-08-23 08:46:48 C 22 11 07.46 -05 13 36.9 17.9 a 704
1998-08-23 09:04:58 C 22 11 06.99 -05 13 09.8 18.8 a 704
1998-08-23 09:22:31 C 22 11 06.69 -05 12 48.3 18.5 a 704
1998-08-24 02:36:36 C 22 10 45.85 -04 48 43.9 z 758
1998-08-24 02:43:59 C 22 10 45.62 -04 48 33.4 z 758
1998-08-24 02:51:55 C 22 10 45.41 -04 48 22.3 z 758
1998-08-24 06:25:14 C 22 10 40.35 -04 43 25.1 z 670
1998-08-24 06:31:00 C 22 10 39.90 -04 43 21.9 b 713
1998-08-24 06:38:45 C 22 10 39.99 -04 43 05.8 z 670
1998-08-24 06:45:59 C 22 10 39.38 -04 42 57.7 b 713
1998-08-24 07:00:45 C 22 10 39.33 -04 42 34.3 z 670
1998-08-24 08:42:00 C 22 10 36.03 -04 40 09.9 711
1998-08-24 08:49:31 C 22 10 35.82 -04 39 59.4 711
1998-08-24 08:57:02 C 22 10 35.61 -04 39 48.7 711
1998-08-24 11:29:23 C 22 10 33.91 -04 35 45.5 422
1998-08-24 11:32:16 C 22 10 33.84 -04 35 41.4 422
1998-08-24 11:34:26 C 22 10 33.76 -04 35 38.6 422
1998-08-24 11:37:07 C 22 10 33.68 -04 35 34.5 422
1998-08-24 13:50:57 C 22 10 30.27 -04 32 24.8 426
1998-08-24 13:58:05 C 22 10 30.08 -04 32 15.0 426
1998-08-24 14:06:56 C 22 10 29.82 -04 32 02.2 426
1998-08-24 14:13:48 C 22 10 29.61 -04 31 52.6 426
1998-08-24 19:54:58 C 22 10 22.81 -04 24 17.1 z 596
1998-08-24 20:01:20 C 22 10 22.57 -04 24 09.0 z 596
1998-08-24 20:02:29 C 22 10 22.55 -04 24 07.4 z 587
1998-08-24 20:06:46 C 22 10 22.42 -04 24 00.8 z 596
1998-08-24 20:07:28 C 22 10 22.44 -04 24 00.5 z 587
1998-08-24 23:16:59 C 22 10 17.11 -04 19 27.3 a 470
1998-08-24 23:22:57 C 22 10 16.96 -04 19 18.6 a 470
1998-08-25 03:33:34 C 22 10 12.12 -04 13 15.5 z 758
1998-08-25 03:42:40 C 22 10 11.87 -04 13 01.0 z 758
1998-08-25 03:50:55 C 22 10 11.65 -04 12 50.3 z 758
1998-08-25 04:01:25 C 22 10 11.64 -04 12 38.1 z 734
1998-08-25 04:13:36 C 22 10 11.29 -04 12 20.3 z 734
1998-08-25 04:23:51 C 22 10 10.99 -04 12 06.5 z 734
1998-08-25 08:06:12 C 22 10 04.81 -04 06 43.0 711
1998-08-25 08:13:31 C 22 10 04.59 -04 06 32.5 711
1998-08-25 08:20:58 C 22 10 04.35 -04 06 19.4 711
1998-08-25 08:58:05 C 22 10 03.84 -04 05 34.0 658
1998-08-25 09:02:05 C 22 10 03.73 -04 05 28.3 658
1998-08-25 09:06:58 C 22 10 03.60 -04 05 21.2 658
1998-08-25 12:11:46 C 22 10 00.39 -04 00 19.7 422
1998-08-25 12:13:20 C 22 10 00.35 -04 00 17.6 422