I have been on a few evening passes of AO-73 lately and have found little to no activity. With the loss of VO-52, AO-73 now carries our easiest to hear linear transponder. I will be on the 03:30Z pass over the United States that covers much of the United States if anyone cares to join me. I will be calling CQ at around 145.965 MHz.
The transponder will shut off just after 03:37:15 when it enters sunlight.