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
1998-08-24 20:00:10 C 19 27 20.41 -10 09 08.4 16.0 143
1998-08-24 20:27:00 C 19 27 23.94 -10 08 45.7 557
1998-08-24 20:29:22 C 19 27 24.26 -10 08 43.6 557
1998-08-24 20:31:43 C 19 27 24.60 -10 08 41.5 557
1998-08-24 21:04:58 C 19 27 29.62 -10 08 08.2 z 952
1998-08-24 21:06:14 C 19 27 29.82 -10 08 06.2 z 952
1998-08-25 14:23:00 C 19 29 58.28 -09 52 51.8 360
1998-08-25 14:26:59 C 19 29 58.82 -09 52 48.2 360
1998-08-25 14:30:45 C 19 29 59.33 -09 52 44.7 360
1998-08-27 06:00:12 C 19 35 35.87 -09 19 24.0 658
1998-08-27 06:03:48 C 19 35 36.31 -09 19 20.5 658
1998-08-27 06:09:46 C 19 35 37.16 -09 19 16.8 658
1998-08-29 10:59:38 C 19 42 54.35 -08 36 40.2 426
1998-08-29 11:04:31 C 19 42 54.91 -08 36 36.7 426
1998-08-29 11:09:38 C 19 42 55.60 -08 36 32.8 426
1998-08-29 11:14:15 C 19 42 56.21 -08 36 29.5 426
1998-08-29 20:10:53 C 19 44 08.35 -08 30 18.7 z 108
1998-08-29 20:15:08 C 19 44 08.99 -08 30 15.4 z 108
1998-08-29 20:19:07 C 19 44 09.55 -08 30 14.5 z 108
1998-09-01 23:12:59 C 19 54 01.51 -07 36 06.5 z 860
1998-09-01 23:21:52 C 19 54 02.64 -07 35 59.2 z 860
1998-09-07 20:56:22 C 20 11 31.32 -06 09 56.3 557
1998-09-07 21:01:03 C 20 11 31.85 -06 09 53.8 557
1998-09-07 21:03:24 C 20 11 32.13 -06 09 52.5 557
1998-09-08 12:50:43 C 20 13 23.97 -06 01 12.7 z 402
1998-09-08 12:53:13 C 20 13 24.26 -06 01 11.0 z 402
1998-09-08 12:55:42 C 20 13 24.53 -06 01 09.8 z 402
1998-09-09 12:39:44 C 20 16 11.10 -05 48 35.6 360
1998-09-09 12:43:14 C 20 16 11.47 -05 48 33.9 360
1998-09-09 12:46:29 C 20 16 11.85 -05 48 32.3 360
1998-09-09 19:13:42 C 20 16 57.18 -05 45 16.4 z 540
1998-09-09 19:18:44 C 20 16 57.81 -05 45 13.8 z 540
1998-09-09 19:23:13 C 20 16 58.27 -05 45 11.4 z 540
1998-09-09 19:49:22 C 20 17 01.13 -05 44 58.3 046
1998-09-09 19:52:28 C 20 17 01.49 -05 44 56.7 046
1998-09-09 19:58:49 C 20 17 02.20 -05 44 53.4 046
1998-09-09 20:51:21 C 20 17 07.95 -05 44 26.1 118
1998-09-09 21:00:42 C 20 17 08.98 -05 44 21.5 118
1998-09-09 21:03:42 C 20 17 09.30 -05 44 19.9 118
1998-09-15 03:27:02 C 20 31 18.88 -04 44 51.5 a 699
1998-09-15 03:55:39 C 20 31 21.87 -04 44 39.8 a 699
1998-09-15 04:24:15 C 20 31 24.79 -04 44 27.8 a 699
1998-09-16 03:23:21 C 20 33 53.201 -04 34 19.77 l I02
1998-09-17 11:48:14 C 20 37 21.28 -04 21 31.7 360
1998-09-17 11:51:59 C 20 37 21.67 -04 21 30.1 360
1998-09-17 11:55:14 C 20 37 21.99 -04 21 28.9 360
1998-09-18 00:20:25 C 20 38 41.121 -04 16 10.52 l I02
1998-09-19 18:21:57 C 20 43 04.47 -04 00 34.1 118
1998-09-19 18:28:29 C 20 43 05.13 -04 00 31.4 118
1998-09-21 03:14:17 C 20 46 27.48 -03 48 29.4 c 699