A beautiful, clear and cool day today with a few cumulus clouds earlier in day and some light haze in the afternoon. IOP 7 finished today and the PI’s have called IOP 8 from noon today to noon tomorrow (Saturday) using the persistent fog sounding schedule. I went with Steve to the sounding site at ~9:00 pm for about 90 minutes. Steve spoke with Sebastian about teardown plans and I helped with the 10:15 pm sounding.
ISS1 – All systems running nominally at ISS1 today. Profiler status this morning: @ 1023 100m: 4.59A @ 50V & 1.841A @ 32V, and @1030 150m rass: 3.89A @ 50V & 1.888 A @ 32 V. Bill had us plug in a second external USB drive into the profiler computer. It is plugged into the front of the tower next to the orange external hard drive and was detected by the system.
ISS2 – All systems nominal at the ISS2 site this morning and afternoon.
ISFS – Nothing to report on the ISFS side today.
Soundings – We were asked to launch a sonde in support of IOP8 at ~2 pm today, which we did without incidence. The sounding system software has not been running on the sounding computer when we arrived for the past two days. We rebooted the system after the 2 pm sounding was completed and prior to the 4:15 sounding. On helium, one tank on the right hand side of the trailer was emptied with last night’s IOP, and final tank on the right side was tagged with orange tape and a message that read, “Issue with valve – hissing”. Another tank was nearly depleted with the 10:15 pm sounding, so there is just under 2 tanks of helium left plus the ‘hissing valve’ tank, which I will take a look at during tomorrow afternoon’s sounding.