2S 1553-542 History from Nov 3, 2020 to Mar 11, 2021

2S 1553-542 Short Frequency History

2S 1553-542 Full History

2S 1553-542 Full History

The most recent pulse profile quick look: 2S 1553-542_Profile

New Fits Version of Full History (Beta version): 2S 1553-542

Old Fits Version of Full History: 2S 1553-542


2S 1553-542

The parameters below are used for this source in the GBM epoch-folding monitor

Source Monitor Parameters
RA
239.4542 deg
Decl
-54.4150 deg
Orbital Parameters
Orbital Period
31.363796 days
Period Deriv.
0.0000E+00 days/day
Tπ/2
2457089.44413 (JED)
axsin(i)
203.307 light-sec
Long. of periastron
161.86 deg
Eccentricity
0.0368

Notes:

Preliminary orbit from GBM data by P. Jenke updated Jan 2021


Modification date: 3 Dec, 2021

Author Valerie Connaughton
Responsible Manager Stephen Elrod
Site Curator Peter Jenke