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
2021-02-11 12:57:37 C 12 31 46.175 -11 30 43.98 U F51
2021-02-11 13:13:27 C 12 31 46.089 -11 30 47.60 U F51
2021-02-11 13:29:19 C 12 31 46.002 -11 30 51.18 U F51
2021-02-11 13:45:10 C 12 31 45.914 -11 30 54.88 U F51
2021-02-17 12:34:06 C 12 30 37.505 -12 00 42.56 U F52
2021-02-17 12:51:43 C 12 30 37.230 -12 00 45.90 U F52
2021-02-17 13:09:19 C 12 30 36.994 -12 00 49.21 U F52
2021-02-17 13:26:54 C 12 30 36.736 -12 00 52.27 U F52
2021-03-07 11:01:53 C 12 19 12.85 -12 47 53.3 V T08
2021-03-07 11:06:33 C 12 19 12.53 -12 47 53.2 V T08
2021-03-07 11:11:12 C 12 19 12.38 -12 47 52.7 V T08
2021-03-07 11:18:31 C 12 19 12.07 -12 47 52.4 V T08
2021-03-11 07:50:07 C 12 15 10.13 -12 47 42.8 V 703
2021-03-11 08:05:25 C 12 15 09.40 -12 47 41.7 V 703
2021-03-11 08:13:05 C 12 15 09.03 -12 47 42.8 V 703
2021-03-15 06:58:07 C 12 10 30.38 -12 43 06.9 o 691
2021-03-15 07:06:50 C 12 10 29.92 -12 43 06.4 o 691
2021-03-15 07:15:32 C 12 10 29.45 -12 43 05.9 o 691
2021-03-15 11:29:23 C 12 10 16.147 -12 42 45.93 U F51
2021-03-15 12:09:35 C 12 10 13.963 -12 42 42.83 U F51
2021-03-15 12:26:36 C 12 10 13.042 -12 42 41.54 U F51
2021-03-19 11:10:12 C 12 05 06.14 -12 33 22.9 V T08
2021-03-19 11:14:50 C 12 05 05.86 -12 33 22.1 V T08
2021-03-19 11:23:27 C 12 05 05.39 -12 33 21.5 V T08
2021-03-19 12:14:16 C 12 05 02.38 -12 33 14.4 V T08
2021-03-21 17:16:22 C 12 02 00.87 -12 26 05.6 q D29
2021-03-21 17:36:44 C 12 01 59.62 -12 26 02.6 q D29
2021-03-21 17:57:06 C 12 01 58.42 -12 25 59.6 q D29
2021-03-23 13:47:43 C 11 59 23.88 -12 18 59.1 V T08
2021-03-23 13:53:02 C 11 59 23.53 -12 18 58.3 V T08
2021-03-23 14:04:19 C 11 59 22.85 -12 18 56.4 V T08
2021-03-23 14:21:36 C 11 59 21.82 -12 18 53.0 V T08
2021-03-28 00:34:04 S 11 53 34.630 -11 59 16.94 V C57
2021-03-28 00:34:04 s 1 -103696.63 5 +349554.42 8310.0 C57
2021-03-28 09:04:04 S 11 53 02.220 -11 57 42.12 V C57
2021-03-28 09:04:04 s 1 -120322.21 6 +336116.72 5280.0 C57
2021-03-28 10:54:04 S 11 52 54.922 -11 57 18.04 V C57
2021-03-28 10:54:04 s 1 -123783.87 2 +332856.99 3920.0 C57
2021-03-28 17:44:04 S 11 52 28.325 -11 56 00.38 V C57
2021-03-28 17:44:04 s 1 -136242.08 5 +319558.50 1780.0 C57
2021-03-28 18:04:04 S 11 52 27.000 -11 55 54.16 V C57
2021-03-28 18:04:04 s 1 -136830.59 6 +318863.01 4770.0 C57
2021-03-29 00:44:04 S 11 52 01.042 -11 54 33.16 V C57
2021-03-29 00:44:04 s 1 -148183.82 4 +304023.76 6740.0 C57
2021-03-29 01:44:04 S 11 51 56.582 -11 54 26.50 V C57
2021-03-29 01:44:04 s 1 -149813.99 1 +301643.59 2950.0 C57
2021-03-29 04:24:04 S 11 51 46.742 -11 53 44.34 V C57
2021-03-29 04:24:04 s 1 -154060.67 9 +295096.85 4690.0 C57
2021-03-29 08:04:04 S 11 51 31.692 -11 53 01.75 V C57
2021-03-29 08:04:04 s 1 -159647.49 1 +285615.78 8450.0 C57