Please make a donation to support Gunter's Space Page.
Thank you very much for visiting Gunter's Space Page. I hope that this site is useful and informative for you.
If you appreciate the information provided on this site, please consider supporting my work by making a simple and secure donation via PayPal. Please help to run the website and keep everything free of charge. Thank you very much.

S4 Crossover

S4 Crossover (without upper stage) [NearSpace Launch]

S4 Crossover is a technolgy demonstration mission by NearSpace Launch to obtain flight heritage testing for a prototype payload host platform

Features that will be tested for use in supporting future payloads, include the EyeStar-S4 package (a Globalstar transmitter and an Iridium transceiver), as well space environmental instruments to characterize the radiation and plasma densities to which the payloads will be exposed. S4 CROSSOVER is self powered and operates independently of the larger Astra launch vehicle second stage to which it is permanently attached. It demonstrates a platform that may in the future be used to host payloads; it is an experimental activity. The Astra Rocket-3.3 rocket, LV0009, will be launched from the Pacific Spaceport on Kodiak Island Alaska, no earlier than January 15, 2022, into a circular sun synch orbit at 525 km altitude, 97.5 inclination. Transmission from the S4 CROSSOVER will begin after second stage engine cutoff, activated by relays on the launch vehicle, and will operate until demise, which is expected to occur within a few weeks after launch.

Besides the technology tests, some payloads are on board. The payloads are the radiation detector and the plasma detector. The mission will demonstrate use of the Globalstar Simplex transmitter and the Iridium transceiver, as a communications suite that will allow future systems to become hosting platforms, as well as space environmental monitors.

Nation: USA
Type / Application: Technology
Operator: NearSpace Launch
Contractors: NearSpace Launch
Configuration: Equipment bolted to upper stage
Propulsion: None in orbit
Power: Solar cells, batteries
Orbit: 470 km × 537 km, 97.5
Satellite COSPAR Date LS Launch Vehicle Remarks
S4 Crossover 2022-026A 15.03.2022 Kd LP-3B Astra Rocket-3.3 with OreSat 0, SpaceBEE 112, ..., 127, SpaceBEENZ 11, ..., 14


Cite this page: