T0 Period [s] Reference
42754.000  696.8 +1.5 -1.5 White et al. (1976) 
49396.542  675.76 +0.05 -0.05 Pravdo & Ghosh (2001) 
50108.416  677.34 +0.03 -0.03 Pravdo & Ghosh (2001) 
50129.416  678.00 +0.30 -0.30 Pravdo & Ghosh (2001) 
50338.008  679.34 +0.10 -0.10 Pravdo & Ghosh (2001) 
50399.458  679.14 +0.07 -0.07 Pravdo & Ghosh (2001) 
50409.625  679.50 +0.02 -0.22 Pravdo & Ghosh (2001) 

T0 Pdot Reference

See Koh et al. (1997) for description of 2 spin-up events
Last modification date: Fri Aug 3 01:06:15 2007