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
2001-10-26 05:14:53 C 00 53 29.92 +20 24 42.6 18.3 c 644
2001-10-26 05:44:13 C 00 53 28.76 +20 24 28.9 18.2 c 644
2001-10-26 06:15:14 C 00 53 27.55 +20 24 14.1 18.4 c 644
2001-11-12 05:32:36 C 00 44 49.78 +17 33 36.5 19.6 c 704
2001-11-12 05:54:26 C 00 44 49.61 +17 33 27.8 19.4 c 704
2001-11-12 06:17:08 C 00 44 49.53 +17 33 20.5 19.6 c 704
2001-11-12 06:38:03 C 00 44 49.40 +17 33 12.0 19.7 c 704
2001-11-17 03:53:22 C 00 44 34.94 +16 56 01.7 19.7 c 704
2001-11-17 04:20:48 C 00 44 34.94 +16 55 53.4 19.6 c 704
2001-11-17 04:41:33 C 00 44 34.87 +16 55 48.1 19.4 c 704
2003-01-29 03:37:44 C 07 55 51.282 +20 35 30.32 e 645
2003-01-29 03:42:44 C 07 55 51.023 +20 35 30.70 22.28 e 645
2003-02-01 04:14:20 C 07 52 10.752 +20 41 03.40 e 645
2003-02-01 04:19:20 C 07 52 10.497 +20 41 03.74 22.29 e 645
2004-08-17 09:42:22 C 03 16 24.12 +26 01 24.4 20.2 c 704
2004-08-17 09:58:26 C 03 16 25.07 +26 01 29.8 20.1 c 704
2004-08-17 10:28:05 C 03 16 26.58 +26 01 42.1 20.3 c 704
2004-08-17 10:43:46 C 03 16 27.36 +26 01 47.7 20.4 c 704
2004-09-07 11:25:53 C 03 34 53.54 +28 38 27.7 19.6 c 644
2004-09-07 11:41:45 C 03 34 53.82 +28 38 31.7 19.4 c 644
2004-09-07 11:57:04 C 03 34 54.00 +28 38 35.5 19.7 c 644
2004-09-14 08:22:28 C 03 36 47.54 +29 14 53.1 19.1 c 644
2004-09-14 08:47:09 C 03 36 47.58 +29 14 58.5 19.1 c 644
2004-09-14 09:20:26 C 03 36 47.70 +29 15 04.8 19.6 c 644
2004-10-08 08:17:30 C 03 24 50.48 +30 06 16.4 19.6 c 704
2004-10-08 08:38:04 C 03 24 49.46 +30 06 16.8 19.7 c 704
2004-10-08 09:36:18 C 03 24 46.69 +30 06 13.2 19.9 c 704
2004-10-10 07:25:25 C 03 22 38.17 +30 03 51.2 19.7 c 704
2004-10-10 07:41:09 C 03 22 37.38 +30 03 50.3 20.0 c 704
2004-10-10 07:56:53 C 03 22 36.54 +30 03 48.3 20.0 c 704
2004-10-10 08:12:36 C 03 22 35.83 +30 03 47.4 19.8 c 704
2004-10-10 08:28:20 C 03 22 34.95 +30 03 47.7 19.8 c 704
2004-10-15 07:23:54 C 03 16 20.96 +29 52 14.6 19.5 c 704
2004-10-15 07:39:50 C 03 16 20.06 +29 52 13.0 20.1 c 704
2004-10-15 07:55:48 C 03 16 19.06 +29 52 10.9 19.6 c 704
2004-10-15 08:11:45 C 03 16 18.13 +29 52 08.9 20.0 c 704
2004-10-15 08:27:43 C 03 16 17.24 +29 52 06.0 20.0 c 704
2004-10-23 02:20:07 C 03 05 04.59 +29 18 19.0 r 170
2004-10-23 02:21:44 C 03 05 04.50 +29 18 18.5 r 170
2004-10-23 02:26:34 C 03 05 04.21 +29 18 17.0 r 170
2004-11-09 09:03:04 C 02 38 39.37 +27 04 51.2 d 703
2004-11-09 09:22:51 C 02 38 38.17 +27 04 45.3 d 703
2004-11-09 09:42:21 C 02 38 37.02 +27 04 36.6 d 703
2004-11-09 10:01:56 C 02 38 35.72 +27 04 29.2 d 703
2005-12-25 10:46:11 C 09 09 21.67 +16 04 01.8 r G96
2005-12-25 10:55:33 C 09 09 21.42 +16 04 02.3 r G96
2005-12-25 11:04:58 C 09 09 21.13 +16 04 02.7 r G96
2005-12-25 11:14:18 C 09 09 20.88 +16 04 03.4 r G96
2006-01-22 08:19:14 C 08 42 10.04 +17 10 55.9 r G96
2006-01-22 08:31:36 C 08 42 09.43 +17 10 57.7 r G96