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
2006-01-22 08:43:56 C 08 42 08.74 +17 10 59.4 r G96
2006-01-22 08:56:15 C 08 42 08.13 +17 11 01.0 r G96
2006-01-31 08:41:10 C 08 30 53.83 +17 38 19.5 c 568
2006-02-01 09:36:35 C 08 29 35.54 +17 41 23.0 c 568
2006-02-01 10:43:16 C 08 29 31.95 +17 41 31.2 c 568
2006-02-01 11:41:38 C 08 29 28.85 +17 41 38.4 c 568
2007-11-08 07:50:54 C 04 10 31.98 +30 27 33.7 19.9 c 704
2007-11-08 08:08:32 C 04 10 30.87 +30 27 30.1 19.8 c 704
2007-11-08 08:26:11 C 04 10 29.82 +30 27 28.0 20.0 c 704
2007-11-08 08:43:50 C 04 10 28.72 +30 27 24.7 19.8 c 704
2007-11-09 07:43:09 C 04 09 03.61 +30 23 42.3 20.2 c 704
2007-11-09 08:00:55 C 04 09 02.48 +30 23 37.3 19.8 c 704
2007-11-09 08:18:56 C 04 09 01.21 +30 23 32.9 20.1 c 704
2007-12-13 05:03:42 C 03 23 00.19 +26 45 18.0 20.4 c 704
2007-12-13 05:22:15 C 03 22 59.49 +26 45 13.7 20.9 c 704
2007-12-13 05:40:50 C 03 22 58.65 +26 45 08.8 20.4 c 704
2007-12-13 05:59:25 C 03 22 57.81 +26 45 02.9 20.3 c 704
2007-12-17 08:48:41 C 03 19 27.80 +26 16 17.1 r G96
2007-12-17 08:55:58 C 03 19 27.48 +26 16 13.9 r G96
2007-12-17 09:03:04 C 03 19 27.22 +26 16 12.0 r G96
2007-12-17 09:10:09 C 03 19 26.97 +26 16 09.8 r G96
2009-02-01 04:46:37 C 09 09 24.11 +13 53 45.7 o 691
2009-02-01 05:12:40 C 09 09 22.74 +13 53 50.3 o 691
2009-02-01 05:38:45 C 09 09 21.34 +13 53 54.0 o 691
2012-01-21 08:13:15 C 10 03 59.17 +08 37 08.2 o 691
2012-01-21 08:39:06 C 10 03 58.24 +08 37 10.7 o 691
2012-01-21 09:09:54 C 10 03 57.11 +08 37 13.4 o 691
2012-01-25 06:50:24 C 10 00 22.54 +08 46 37.9 o 691
2012-01-25 07:15:57 C 10 00 21.46 +08 46 41.5 o 691
2012-01-25 07:41:27 C 10 00 20.41 +08 46 44.4 o 691
2012-02-02 06:23:52 C 09 51 55.33 +09 11 49.2 o 691
2012-02-02 06:49:27 C 09 51 54.11 +09 11 53.0 o 691
2012-02-02 07:15:01 C 09 51 52.84 +09 11 56.6 o 691
2012-02-03 12:58:53 C 09 50 26.966 +09 16 29.22 L F51
2012-02-03 13:17:26 C 09 50 26.056 +09 16 32.10 L F51
2012-02-03 13:37:48 C 09 50 25.019 +09 16 35.09 L F51
2012-02-25 06:31:47 C 09 23 17.12 +10 50 00.0 r G96
2012-02-25 06:41:38 C 09 23 16.62 +10 50 01.8 r G96
2012-02-25 07:01:31 C 09 23 15.57 +10 50 05.6 r G96
2013-12-25 07:02:18 C 05 05 55.854 +28 21 53.85 L F51
2013-12-25 07:21:16 C 05 05 54.857 +28 21 51.02 L F51
2013-12-25 07:40:18 C 05 05 53.835 +28 21 47.88 L F51
2013-12-25 07:59:13 C 05 05 52.818 +28 21 45.03 L F51
2015-01-16 11:56:22 C 10 49 21.055 +03 22 05.36 L F51
2015-01-16 12:12:45 C 10 49 20.770 +03 22 04.65 L F51
2015-01-16 12:29:13 C 10 49 20.479 +03 22 04.19 L F51
2015-01-18 11:04:50 C 10 48 30.20 +03 20 45.9 o 691
2015-01-18 11:26:31 C 10 48 29.994 +03 20 46.39 L F51
2015-01-18 11:33:55 C 10 48 29.59 +03 20 45.2 o 691
2015-01-18 11:45:05 C 10 48 29.613 +03 20 45.92 L F51