The satellite is surrounded by five pieces of debris which could be its own parts, and has been veering off course since Saturday.
Hitomi (ASTRO-H) orbital period versus time from @spacetrackorg data showing sudden change on Mar 26. pic.twitter.com/cQIaOjKlv1
— Jonathan McDowell (@planet4589) March 27, 2016
It's not clear if those pieces of debris mean the satellite is beyond salvage or has only sustained minor damage, but one short signal has been received from Hitomi since the supposed incident.
Jonathan McDowell, an astronomer and space analyst at the Harvard-Smithsonian Center for Astrophysics in Cambridge, Massachusetts, hopes it can be saved, however pessimistic the situation is at the moment.
"Everyone's just gutted," McDowell said.
"To hear that they've run into this piece of bad luck, it's so very sad. I know enough about how the sausage was made to know that this could have easily have happened to us. Space is very unforgiving," he added, as quoted by AP.
The satellite's usual position would be around 580km above Earth, and the Japanese researchers are trying to find its current position, the Japan Times reported.
On Sunday, JAXA, the Japanese space agency, said that the scheduled astronomical research wouldn't be possible if the satellite is lost for good: 'Hitomi' may not be able to draw solar energy for a long time if damaged, and its battery could run down.














Comment: The Hitomi satellite was supposed to come online on March 26. Is it a coincidence that two comets, who may have 'friends', whizzed by Earth a few days before?
SOTT Exclusive: Two comets whizz past Earth on same day, including third and fifth closest flybys in recorded history