COMIS/TTM observations


Last update: February 12, 2001


COMIS/TTM carried out some 1800 observations. The busiest year was 1989, when 35% of all observations were carried out. The following diagram shows the yearly rates, starting in 1988.

Per target, the following number of observations since 1988 apply
TargetNumber of observations
Galactic center 416
SN 1987A 150
Vela X-1 136
Cyg X-1 and X-3 116
Her X-1 115
GS 2023+338 107
GRS 0834-42 76
Cir X-1 72
Cen X-3 67
Crab 54
GS 1009-45 43
3C 273 37
NGC 4151 30
SMC 24
Sco X-1 18
NGC 5548 13
Cep X-4 10
XTE J1550-564 7


Jean in 't Zand, SRON, February 12, 2001