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
1998-08-17 11:45:03 C 19 00 16.51 -13 04 44.2 426
1998-08-17 13:32:13 C 19 00 32.32 -13 02 44.8 422
1998-08-17 13:38:27 C 19 00 33.28 -13 02 37.5 422
1998-08-17 13:40:13 C 19 00 33.56 -13 02 35.6 422
1998-08-17 13:41:53 C 19 00 33.81 -13 02 33.7 422
1998-08-17 19:39:00 C 19 01 33.33 -12 56 46.4 z 540
1998-08-17 19:42:21 C 19 01 33.81 -12 56 42.6 z 540
1998-08-17 19:52:08 C 19 01 35.36 -12 56 31.5 z 540
1998-08-17 20:18:03 C 19 01 39.28 -12 56 03.9 046
1998-08-17 20:21:15 C 19 01 39.77 -12 56 00.6 046
1998-08-17 20:22:44 C 19 01 40.00 -12 55 59.0 046
1998-08-19 04:24:15 C 19 06 47.51 -12 21 18.3 z 670
1998-08-19 04:36:00 C 19 06 49.22 -12 21 06.0 z 670
1998-08-19 04:45:59 C 19 06 50.74 -12 20 55.1 z 670
1998-08-19 20:49:35 C 19 09 21.88 -12 04 10.7 046
1998-08-19 20:51:31 C 19 09 22.17 -12 04 08.8 046
1998-08-19 20:53:23 C 19 09 22.44 -12 04 06.5 046
1998-08-20 07:53:10 C 19 11 04.83 -11 52 43.8 z 659
1998-08-20 08:04:29 C 19 11 06.49 -11 52 33.1 z 659
1998-08-20 08:13:49 C 19 11 07.79 -11 52 22.9 z 659
1998-08-20 08:19:53 C 19 11 08.55 -11 52 18.3 z 659
1998-08-20 08:25:40 C 19 11 09.54 -11 52 11.1 z 659
1998-08-20 08:31:25 C 19 11 10.42 -11 52 04.7 z 659
1998-08-20 08:37:16 C 19 11 11.29 -11 51 58.7 z 659
1998-08-20 08:43:12 C 19 11 12.10 -11 51 53.1 z 659
1998-08-20 21:26:40 C 19 13 11.09 -11 38 59.0 z 587
1998-08-20 21:31:39 C 19 13 11.88 -11 38 52.5 z 587
1998-08-20 21:34:44 C 19 13 12.37 -11 38 50.0 z 587
1998-08-21 06:21:14 C 19 14 33.38 -11 30 02.5 z 659
1998-08-21 06:27:01 C 19 14 34.08 -11 29 58.5 z 659
1998-08-21 11:21:34 C 19 15 20.09 -11 24 59.5 z 402
1998-08-21 11:23:05 C 19 15 20.28 -11 24 58.1 z 402
1998-08-22 06:56:45 C 19 18 17.41 -11 05 53.4 658
1998-08-22 07:10:32 C 19 18 19.37 -11 05 40.1 658
1998-08-22 07:16:07 C 19 18 20.20 -11 05 34.7 658
1998-08-23 10:51:19 C 19 22 29.12 -10 38 41.0 426
1998-08-23 11:02:31 C 19 22 30.72 -10 38 30.9 426
1998-08-23 11:13:19 C 19 22 32.24 -10 38 20.7 426
1998-08-23 21:37:53 C 19 24 03.70 -10 29 21.4 z 952
1998-08-23 21:40:38 C 19 24 04.13 -10 29 18.9 z 952
1998-08-23 21:47:45 C 19 24 05.10 -10 29 12.4 z 952
1998-08-23 21:52:04 C 19 24 05.71 -10 29 08.1 z 952
1998-08-23 21:56:00 C 19 24 06.29 -10 29 04.9 z 952
1998-08-23 21:58:46 C 19 24 06.66 -10 29 01.9 z 952
1998-08-23 22:05:02 C 19 24 07.53 -10 28 56.3 z 952
1998-08-24 13:36:13 C 19 26 23.09 -10 14 10.6 422
1998-08-24 13:37:53 C 19 26 23.31 -10 14 09.0 422
1998-08-24 13:38:37 C 19 26 23.40 -10 14 08.5 422
1998-08-24 19:54:32 C 19 27 19.49 -10 09 12.1 16.3 143
1998-08-24 19:57:21 C 19 27 19.95 -10 09 10.6 15.9 143