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
2021-04-07 06:50:40 C 11 37 56.70 -10 53 57.3 V 703
2021-04-08 09:55:53 C 11 36 21.51 -10 45 45.3 V T08
2021-04-08 10:00:32 C 11 36 21.26 -10 45 44.4 V T08
2021-04-08 10:07:55 C 11 36 20.79 -10 45 41.3 V T08
2021-04-08 10:30:23 C 11 36 19.39 -10 45 34.2 V T08
2021-04-09 09:07:33 C 11 35 01.326 -10 38 38.77 U F51
2021-04-09 09:25:29 C 11 35 00.244 -10 38 33.18 U F51
2021-04-09 09:43:26 C 11 34 59.166 -10 38 27.63 U F51
2021-04-09 10:01:26 C 11 34 58.082 -10 38 22.04 U F51
2021-04-10 06:35:05 C 11 33 48.01 -10 32 00.1 V 703
2021-04-10 06:42:54 C 11 33 47.55 -10 31 58.4 V 703
2021-04-10 06:50:42 C 11 33 47.07 -10 31 55.1 V 703
2021-04-10 06:58:31 C 11 33 46.61 -10 31 53.1 V 703
2021-04-13 07:39:16 C 11 29 47.991 -10 08 49.02 U F52
2021-04-13 07:49:37 C 11 29 47.408 -10 08 45.77 U F51
2021-04-13 08:23:02 C 11 29 45.538 -10 08 35.11 U F51
2021-04-13 08:30:52 C 11 29 45.105 -10 08 32.59 U F52
2021-04-13 08:39:46 C 11 29 44.604 -10 08 29.72 U F51
2021-04-13 08:56:39 C 11 29 43.656 -10 08 24.27 U F52
2021-04-14 05:55:06 C 11 28 38.183 -10 01 39.65 U F52
2021-04-14 06:18:10 C 11 28 36.933 -10 01 32.25 U F52
2021-04-14 06:41:15 C 11 28 35.677 -10 01 24.95 U F52
2021-04-14 07:04:24 C 11 28 34.415 -10 01 17.67 U F52
2021-04-16 20:52:41 C 11 25 28.78 -09 41 24.9 V 130
2021-04-16 21:01:59 C 11 25 28.33 -09 41 22.1 V 130
2021-04-18 08:30:29 C 11 23 48.19 -09 29 53.4 V T05
2021-04-18 08:34:28 C 11 23 48.00 -09 29 52.6 V T05
2021-04-18 09:21:14 C 11 23 45.72 -09 29 37.1 V T05
2021-04-18 10:02:43 C 11 23 43.73 -09 29 23.9 V T05
2021-04-20 08:25:53 C 11 21 41.07 -09 14 35.8 V T08
2021-04-20 08:37:09 C 11 21 40.54 -09 14 32.3 V T08
2021-04-20 08:41:48 C 11 21 40.35 -09 14 30.8 V T08
2021-04-20 08:56:25 C 11 21 39.70 -09 14 25.9 V T08
2021-04-28 09:15:42 C 11 14 53.14 -08 16 35.3 V T08
2021-04-28 09:20:21 C 11 14 52.98 -08 16 33.8 V T08
2021-04-28 09:28:19 C 11 14 52.71 -08 16 31.2 V T08
2021-04-28 09:36:58 C 11 14 52.52 -08 16 29.5 V T08
2021-04-28 09:44:18 C 11 14 52.24 -08 16 26.9 V T08
2021-04-30 08:12:55 C 11 13 41.05 -08 03 44.6 V T05
2021-04-30 08:17:33 C 11 13 40.95 -08 03 44.6 V T05
2021-04-30 08:27:26 C 11 13 40.70 -08 03 41.3 V T05
2021-04-30 08:41:36 C 11 13 40.31 -08 03 37.4 V T05
2021-05-01 08:19:18 C 11 13 08.21 -07 57 24.1 V T08
2021-05-01 08:23:57 C 11 13 08.10 -07 57 22.9 V T08
2021-05-01 08:31:55 C 11 13 07.91 -07 57 21.1 V T08
2021-05-01 08:47:12 C 11 13 07.55 -07 57 17.1 V T08
2021-05-02 08:24:44 C 11 12 38.39 -07 51 13.9 V T08
2021-05-02 08:29:23 C 11 12 38.37 -07 51 13.9 V T08
2021-05-02 08:43:59 C 11 12 37.97 -07 51 09.8 V T08
2021-05-02 08:52:38 C 11 12 37.84 -07 51 07.3 V T08