def timestamp(self,tai):
"""
Converts an TAI timestamp expressed as MJD seconds(!) into a UTC timestamp
"""
# convert from MJD seconds to MJD days
try:
mjdtai = float(tai)/86400.
except ValueError:
logging.warn('unable to convert MJD TAI timestamp: %r',tai)
# as a fallback, return the current time
return AstroTime.now(UTC)
when = AstroTime.fromMJD(mjdtai,TAI)
return when.astimezone(UTC)
