I reckon it has to be within the same system as the support ship. I don't think Sidewinders would have had jump capability 33 years ago, especially if the support ships were using older jump drives.
I seem to remember 30 odd years ago-didn't a sidewinder have about 7 ly jump range? But the support ship must have been one of the annies
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I don't get 5/6, she wrote down that weird message on the 11/11/3270... then all of a sudden eighteen days later she writes another message, as if everything is kind of normal, Saying she's heading out to an earth like world? So our next step is finding a system with this 'earth like' world.
She's had 18 days to accept that everyone else is dead, she's the sole survivor & needs to get to an ELW to survive.
It will be interesting to find out however she managed then to get back to the buuble (assuming she did succeed, & she's Reclamation's old lady)