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
1998-08-25 12:17:32 C 22 10 00.23 -04 00 11.4 422
1998-08-25 12:18:37 C 22 10 00.18 -04 00 09.9 422
1998-08-25 12:35:04 C 22 10 00.06 -03 59 45.5 426
1998-08-25 12:41:43 C 22 09 59.87 -03 59 36.1 426
1998-08-25 12:47:38 C 22 09 59.72 -03 59 27.2 426
1998-08-25 12:54:13 C 22 09 59.50 -03 59 18.1 426
1998-08-25 21:03:42 C 22 09 48.25 -03 47 57.5 i 106
1998-08-25 21:10:33 C 22 09 48.04 -03 47 47.5 i 106
1998-08-25 21:22:05 C 22 09 47.80 -03 47 30.4 z 587
1998-08-25 21:26:36 C 22 09 47.62 -03 47 24.1 i 106
1998-08-25 21:29:39 C 22 09 47.58 -03 47 19.6 z 587
1998-08-25 21:37:56 C 22 09 47.33 -03 47 07.7 i 106
1998-08-25 22:02:13 C 22 09 46.72 -03 46 33.1 16.2 143
1998-08-25 22:02:27 C 22 09 46.60 -03 46 31.9 i 106
1998-08-25 22:11:01 C 22 09 46.31 -03 46 20.4 557
1998-08-25 22:11:15 C 22 09 46.39 -03 46 19.8 16.3 143
1998-08-25 22:19:32 C 22 09 46.08 -03 46 08.2 557
1998-08-25 22:22:31 C 22 09 46.14 -03 46 03.5 16.3 143
1998-08-26 03:24:08 C 22 09 39.69 -03 38 33.2 z 758
1998-08-26 03:36:58 C 22 09 39.27 -03 38 12.5 z 758
1998-08-26 05:32:47 C 22 09 36.70 -03 35 27.2 a 699
1998-08-26 06:15:42 C 22 09 35.42 -03 34 24.5 a 699
1998-08-26 06:58:37 C 22 09 34.17 -03 33 20.9 a 699
1998-08-27 01:02:02 C 22 09 08.26 -03 06 32.2 z 589
1998-08-27 01:04:38 C 22 09 08.20 -03 06 28.1 z 589
1998-08-27 01:14:53 C 22 09 07.95 -03 06 13.5 z 589
1998-08-30 19:37:52 C 22 07 01.87 -00 45 31.7 046
1998-08-30 19:39:27 C 22 07 01.86 -00 45 29.5 046
1998-08-30 19:41:08 C 22 07 01.78 -00 45 26.8 046
1998-08-30 19:42:52 C 22 07 01.73 -00 45 23.7 046
1998-09-02 01:56:11 C 22 05 45.00 +00 44 21.9 z 860
1998-09-02 02:03:27 C 22 05 44.83 +00 44 34.6 z 860
1998-09-02 02:09:52 C 22 05 44.61 +00 44 45.4 z 860
1998-09-07 21:39:42 C 22 02 43.92 +04 47 46.2 557
1998-09-07 21:42:02 C 22 02 43.88 +04 47 50.4 557
1998-09-08 13:32:00 C 22 02 25.72 +05 16 40.3 z 402
1998-09-08 13:34:31 C 22 02 25.65 +05 16 44.8 z 402
1998-09-08 13:37:00 C 22 02 25.59 +05 16 49.4 z 402
1998-09-09 12:54:30 C 22 02 00.41 +05 59 24.7 360
1998-09-09 12:58:30 C 22 02 00.30 +05 59 32.2 360
1998-09-09 13:02:00 C 22 02 00.21 +05 59 38.7 360
1998-09-09 21:27:51 C 22 01 51.03 +06 15 01.7 046
1998-09-09 21:30:36 C 22 01 50.96 +06 15 06.8 046
1998-09-09 21:32:29 C 22 01 50.93 +06 15 10.3 046
1998-09-09 21:34:16 C 22 01 50.88 +06 15 13.5 046
1998-09-11 11:35:13 C 22 01 14.23 +07 25 43.9 z 402
1998-09-11 11:37:14 C 22 01 14.18 +07 25 47.5 z 402
1998-09-11 11:39:14 C 22 01 14.16 +07 25 51.3 z 402
1998-09-13 19:05:13 C 22 00 28.38 +09 09 36.2 z 540
1998-09-13 19:09:44 C 22 00 28.28 +09 09 44.8 z 540