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
1998-09-21 03:39:18 C 20 46 29.89 -03 48 20.5 c 699
1998-09-21 04:04:18 C 20 46 32.33 -03 48 11.6 c 699
1998-09-22 20:20:38 C 20 50 37.61 -03 34 08.6 118
1998-09-22 20:22:14 C 20 50 37.79 -03 34 08.2 557
1998-09-22 20:26:33 C 20 50 38.20 -03 34 06.9 557
1998-09-22 20:30:10 C 20 50 38.52 -03 34 05.4 118
1998-09-23 19:24:20 C 20 52 56.82 -03 26 21.2 118
1998-09-23 19:35:30 C 20 52 57.89 -03 26 17.5 118
1998-09-24 21:02:03 C 20 55 29.57 -03 17 54.2 118
1998-09-24 21:16:55 C 20 55 30.99 -03 17 49.3 118
1998-09-25 03:25:05 C 20 56 07.66 -03 15 45.3 a 747
1998-09-25 04:05:05 C 20 56 11.32 -03 15 32.0 a 747
1998-09-25 04:09:59 C 20 56 11.84 -03 15 30.7 a 747
1998-09-26 04:11:11 C 20 58 33.94 -03 07 50.4 a 747
1998-09-26 05:06:32 C 20 58 39.17 -03 07 32.4 a 747
1998-09-27 01:03:00 C 21 00 37.25 -03 01 18.9 a 747
1998-09-27 02:04:37 C 21 00 42.99 -03 00 59.8 a 747
1998-10-17 12:36:54 C 21 45 35.35 -00 49 09.2 422
1998-10-17 12:38:04 C 21 45 35.42 -00 49 09.7 422
1998-10-17 12:39:33 C 21 45 35.56 -00 49 09.9 422
1998-10-17 19:21:49 C 21 46 10.93 -00 47 46.4 557
1998-10-17 19:25:08 C 21 46 11.26 -00 47 45.7 557
1998-10-25 10:32:45 C 22 01 52.39 -00 01 58.8 360
1998-10-25 10:38:15 C 22 01 52.82 -00 01 57.1 360
1998-10-25 10:43:45 C 22 01 53.29 -00 01 55.7 360
1998-10-27 04:47:17 C 22 05 26.15 +00 08 42.0 658
1998-10-27 04:56:55 C 22 05 26.91 +00 08 44.4 658
1998-10-27 05:01:13 C 22 05 27.22 +00 08 45.3 658
1998-11-11 04:42:42 C 22 35 10.42 +01 44 42.4 658
1998-11-11 04:47:21 C 22 35 10.81 +01 44 43.3 658
1998-11-11 04:51:40 C 22 35 11.10 +01 44 44.4 658
2000-02-28 05:11:16 C 06 55 09.21 +22 54 35.4 693
2000-02-28 05:17:01 C 06 55 09.14 +22 54 34.9 693
2000-02-28 05:22:58 C 06 55 09.04 +22 54 34.4 693
2000-03-01 04:31:49 C 06 54 34.51 +22 52 50.6 693
2000-03-01 04:37:43 C 06 54 34.43 +22 52 50.4 693
2000-03-01 04:43:20 C 06 54 34.37 +22 52 50.2 693
2001-05-23 11:03:35 C 22 38 09.82 -13 24 07.3 926
2001-05-23 11:05:31 C 22 38 10.13 -13 24 04.5 926
2001-05-23 11:06:40 C 22 38 10.25 -13 24 03.1 926
2001-07-29 09:21:49 C 01 35 01.79 +17 27 34.4 c 699
2001-07-29 09:44:16 C 01 35 03.11 +17 27 51.9 c 699
2001-07-29 10:06:44 C 01 35 04.42 +17 28 09.1 c 699
2001-07-29 10:29:11 C 01 35 05.72 +17 28 27.0 c 699
2001-08-22 09:44:09 C 01 56 40.07 +23 21 29.7 18.1 c 704
2001-08-22 10:03:38 C 01 56 40.35 +23 21 40.1 19.2 c 704
2001-08-22 10:23:14 C 01 56 40.42 +23 21 47.4 19.3 c 704
2001-08-22 10:43:16 C 01 56 40.61 +23 21 57.1 19.4 c 704
2001-08-22 11:02:46 C 01 56 40.72 +23 22 05.1 18.7 c 704
2001-08-25 09:34:56 C 01 57 13.09 +23 51 58.7 18.6 c 704