SSI-87

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SSI-87
Designations CY-3
Launch date June 1, 2019, 10:20 PDT
Launch site Le Grand Elementary School, Le Grand, CA
Launch coordinates 37.226, -120.251
Flight profile Ballast and vent control
←SSI-87 SSI Balloon Launches SSI-89→


SSI-87 (project designation CY-3) was the third launch of Project Cycloon on June 1, 2019. It featured a legacy ballast and vent mechanism from ValBal operated by Cycloon avionics and was the first such fully controlled Cycloon flight. The mission was noted for its eventful manual equilibration, early termination, and for being the last latex Cycloon before the project transitioned to polyethylene.

Project context

Configuration

Flight synopsis

Balloon Launches
2014-15 SSI-19202122
2015-16 SSI-23(a) • 2425262728293031323334353637383940414243
2016-17 444546474849505152
2017-18
2018-19 8386879091
2019-20 929397
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