I am airline pilot in brazil, and we were flying from caribe to brazil. about 4:30 and 5:00 i don’t remember exactly we saw one blinking light that’s was moving in the sky. it was in high speed, the light is very similar to a strobe light but blinked and in the next blink seemed that moved very fast. i saw 3 times, the last time the light crossed in front of us, moved from the west to east. can you help me to know exactly what is this light?