T0 Period [s] Reference
50352  0.59325 +0.00002 -0.00002 Jonker & van der Klis (2001) 
51019  0.59308615 +0.00000005 -0.00000005 Jonker & van der Klis (2001) 

T0 Pdot Reference
50352  -2.85x10-12 sec/sec  Jonker & van der Klis (2001) 

Pdot/P (about -1.5E-4 sec/yr) was calculated using 2 sets of RXTE data gathered in MJD 50352 and MJD 51018 (Jonker & van der Klis (2001) ).
Last modification date: Fri Aug 3 01:06:13 2007