31346 (1998 PB1)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4295369353 ± 1.38e-08
Semi-major axis (a)2.0317058364 AU ± 3.90e-10
Inclination (i)5.96560714° ± 1.46e-06
Long. of Asc. Node (Ω)299.67971278° ± 1.18e-05
Arg. of Perihelion (ω)350.65365124° ± 1.18e-05
Mean Anomaly (M)164.42707883° ± 1.87e-06
Mean Motion (n)0.3403463002°/day ± 9.80e-11
Perihelion dist (q)1.15901314 AU ± 2.79e-08
Aphelion dist (Q)2.90439853 AU ± 2.80e-08
Orbital Period2.89595122 yr ± 8.34e-10
Physical Parameters
H (abs. magnitude)17.16
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.305″
Uncertainty0
Orbit TypeAmor
MOID0.141931 AU
Observations Used1028
Oppositions18
Arc Total1998-2026
First Observation Used1998-07-14
Last Observation Used2026-01-08
Observations (1111)
Date Type RA Dec Mag Band Observatory
1998-07-14 00:24:19 C 16 24 36.700 -31 22 33.54 l I02
1998-08-15 06:38:21 C 18 51 29.11 -14 06 03.1 16.5 a 704
1998-08-15 06:51:19 C 18 51 31.15 -14 05 47.6 16.9 a 704
1998-08-15 07:04:58 C 18 51 33.32 -14 05 31.0 17.2 a 704
1998-08-15 07:18:34 C 18 51 35.48 -14 05 13.6 17.7 a 704
1998-08-15 07:31:52 C 18 51 37.70 -14 04 59.0 16.9 a 704
1998-08-16 11:25:40 C 18 56 18.05 -13 32 06.0 426
1998-08-16 11:30:01 C 18 56 18.71 -13 32 00.2 426
1998-08-16 11:35:19 C 18 56 19.55 -13 31 54.2 426
1998-08-16 11:47:30 C 18 56 21.41 -13 31 40.2 426
1998-08-16 11:52:55 C 18 56 22.27 -13 31 34.5 426
1998-08-16 19:27:27 C 18 57 37.17 -13 23 45.6 046
1998-08-16 19:29:03 C 18 57 37.45 -13 23 43.6 046
1998-08-16 19:30:40 C 18 57 37.71 -13 23 41.6 046
1998-08-16 19:32:14 C 18 57 37.94 -13 23 40.0 046
1998-08-16 19:33:48 C 18 57 38.19 -13 23 38.3 046
1998-08-16 19:39:19 C 18 57 39.04 -13 23 31.9 z 540
1998-08-16 19:42:29 C 18 57 39.52 -13 23 28.3 z 540
1998-08-16 19:43:05 C 18 57 39.99 -13 23 24.3 z 108
1998-08-16 19:45:29 C 18 57 40.04 -13 23 24.5 z 540
1998-08-16 19:49:27 C 18 57 40.86 -13 23 19.3 z 108
1998-08-16 19:54:28 C 18 57 41.41 -13 23 14.4 i 106
1998-08-16 19:55:01 C 18 57 41.72 -13 23 12.2 z 108
1998-08-16 19:57:19 C 18 57 41.89 -13 23 10.3 14.4 b 120
1998-08-16 19:59:02 C 18 57 42.22 -13 23 07.9 14.2 b 120
1998-08-16 20:01:08 C 18 57 42.48 -13 23 06.5 i 106
1998-08-16 20:02:21 C 18 57 42.66 -13 23 05.1 i 106
1998-08-16 20:04:10 C 18 57 43.23 -13 23 01.7 z 108
1998-08-16 20:07:45 C 18 57 43.50 -13 22 59.4 i 106
1998-08-16 20:13:36 C 18 57 44.60 -13 22 51.5 z 108
1998-08-16 20:14:00 C 18 57 44.48 -13 22 52.0 i 106
1998-08-16 20:23:19 C 18 57 45.87 -13 22 41.8 15.3 b 120
1998-08-16 20:29:02 C 18 57 46.86 -13 22 34.1 16.5 b 120
1998-08-16 20:36:04 C 18 57 47.94 -13 22 26.4 13.0 b 120
1998-08-16 20:46:21 C 18 57 49.52 -13 22 14.0 14.3 b 120
1998-08-16 21:00:06 C 18 57 51.66 -13 22 00.7 557
1998-08-16 21:26:20 C 18 57 55.78 -13 21 31.1 557
1998-08-16 21:37:16 C 18 57 57.46 -13 21 19.3 557
1998-08-16 21:40:00 C 18 57 57.91 -13 21 15.7 557
1998-08-17 02:32:04 C 18 58 46.85 -13 15 43.7 z 734
1998-08-17 02:38:15 C 18 58 47.81 -13 15 36.7 z 734
1998-08-17 02:44:02 C 18 58 48.69 -13 15 31.1 z 734
1998-08-17 04:55:11 C 18 59 09.35 -13 13 01.1 b 713
1998-08-17 05:09:15 C 18 59 11.54 -13 12 46.9 b 713
1998-08-17 05:32:03 C 18 59 14.97 -13 12 21.4 b 713
1998-08-17 05:46:39 C 18 59 17.21 -13 12 05.5 b 713
1998-08-17 05:52:30 C 18 59 18.16 -13 11 59.0 b 713
1998-08-17 11:19:58 C 19 00 12.72 -13 05 11.5 426
1998-08-17 11:29:49 C 19 00 14.18 -13 05 01.6 426
1998-08-17 11:38:49 C 19 00 15.53 -13 04 51.5 426