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
2021-03-29 08:24:04 S 11 51 30.430 -11 52 54.16 V C57
2021-03-29 08:24:04 s 1 -160140.13 1 +284726.06 1940.0 C57
2021-03-29 11:34:04 S 11 51 17.758 -11 52 13.37 V C57
2021-03-29 11:34:04 s 1 -164686.17 6 +276039.92 7840.0 C57
2021-03-29 16:14:04 S 11 50 58.711 -11 51 18.58 V C57
2021-03-29 16:14:04 s 1 -170913.90 2 +262457.36 5500.0 C57
2021-03-30 06:14:04 S 11 50 02.038 -11 48 04.18 V C57
2021-03-30 06:14:04 s 1 -185552.34 4 +215890.27 6760.0 C57
2021-03-30 06:24:04 S 11 50 01.848 -11 48 03.71 V C57
2021-03-30 06:24:04 s 1 -185683.81 4 +215281.36 5890.0 C57
2021-03-30 08:04:04 S 11 49 54.600 -11 47 39.70 V C57
2021-03-30 08:04:04 s 1 -186935.04 1 +209119.44 6220.0 C57
2021-03-30 12:34:04 S 11 49 36.250 -11 46 34.00 V C57
2021-03-30 12:34:04 s 1 -189701.67 1 +191811.96 8630.0 C57
2021-03-30 18:44:04 S 11 49 10.512 -11 45 04.86 V C57
2021-03-30 18:44:04 s 1 -191858.34 9 +166465.94 1860.0 C57
2021-03-31 10:04:04 S 11 48 06.103 -11 41 04.42 V C57
2021-03-31 10:04:04 s 1 -186356.95 9 +94944.727 9310.0 C57
2021-04-02 10:16:24 C 11 44 58.78 -11 26 57.1 V T05
2021-04-02 10:27:38 C 11 44 58.02 -11 26 55.2 V T05
2021-04-02 10:45:45 C 11 44 56.88 -11 26 49.6 V T05
2021-04-02 10:53:01 C 11 44 56.41 -11 26 47.6 V T05
2021-04-03 10:57:04 C 11 43 28.05 -11 20 17.4 V T08
2021-04-03 11:02:22 C 11 43 27.75 -11 20 16.0 V T08
2021-04-03 11:13:38 C 11 43 27.03 -11 20 12.8 V T08
2021-04-03 11:28:17 C 11 43 26.08 -11 20 09.0 V T08
2021-04-04 04:56:26 C 11 42 22.85 -11 15 21.0 V G96
2021-04-04 05:04:33 C 11 42 22.33 -11 15 18.9 V G96
2021-04-04 05:12:40 C 11 42 21.82 -11 15 16.5 V G96
2021-04-04 05:20:47 C 11 42 21.31 -11 15 14.3 V G96
2021-04-04 06:42:20 C 11 42 16.12 -11 14 50.4 V 703
2021-04-04 06:50:24 C 11 42 15.62 -11 14 48.6 V 703
2021-04-04 06:58:28 C 11 42 15.12 -11 14 47.3 V 703
2021-04-04 10:01:27 C 11 42 03.99 -11 13 54.3 V T08
2021-04-04 10:07:25 C 11 42 03.61 -11 13 52.0 V T08
2021-04-04 10:14:50 C 11 42 03.15 -11 13 50.1 V T08
2021-04-04 10:29:30 C 11 42 02.21 -11 13 46.1 V T08
2021-04-04 14:09:10 C 11 41 49.25 -11 12 46.1 q D29
2021-04-04 14:29:31 C 11 41 47.95 -11 12 40.3 q D29
2021-04-04 14:49:54 C 11 41 46.67 -11 12 34.6 q D29
2021-04-05 01:39:54 C 11 41 07.76 -11 09 30.5 V W46
2021-04-05 02:01:30 C 11 41 06.39 -11 09 23.6 V W46
2021-04-06 02:21:14 C 11 39 38.72 -11 02 24.1 X W34
2021-04-06 02:28:02 C 11 39 38.30 -11 02 21.3 X W34
2021-04-06 02:39:58 C 11 39 37.50 -11 02 17.4 X W34
2021-04-06 09:40:54 C 11 39 12.083 -11 00 12.24 U F52
2021-04-06 10:03:13 C 11 39 10.686 -11 00 05.64 U F52
2021-04-06 10:52:12 C 11 39 07.637 -10 59 51.08 U F52
2021-04-07 06:27:43 C 11 37 58.16 -10 54 04.4 V 703
2021-04-07 06:35:22 C 11 37 57.73 -10 54 01.8 V 703