Results of observations of the Galilean satellites during the week of
the impact of comet Shoemaker-Levy 9 on Jupiter are reported. These ob
servations have been carried out at the Pico dos Dias observatory, at
Brasopolis, Brazil. The satellites's light flux was monitored with a p
hotometer during the time of the predicted impact of fragments B, F, J
and L. No conclusive flash was observed in any of the data adquired.
This non-detection imposes an upper limit to the energy released durin
g the impact of these fragments.