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Size your test before you write to us

Data per day, average rate, on-board memory, eclipse energy and thermal cycles over the campaign from your payload profile. Same orbital mechanics as mission control; computed in the browser, nothing is sent until you attach it.

Format

The physics of the test is the same in both; what changes are the platform limits, which are [PENDING] for both.

Assumed orbit

The real orbit is set by the rideshare launch: [PENDING]. Sun-synchronous, as in mission control.

Payload data
Data link

Data leaves through relay satellites, not a ground station. Actual network, rate and availability: [PENDING]. This is an assumption, to see how the required rate changes.

Power
Period
—
—
Shadow per orbit
—
—
β angle
—
—
Time with a link
—
assumed; network [PENDING]
Data per day
—
—
Required average rate
—
platform: [PENDING]
Memory, one orbit without link
—
platform: [PENDING]
Average / peak consumption
—
platform: [PENDING]
Energy per orbit
—
—
Worst eclipse, from battery
—
platform: [PENDING]
Thermal cycles in the campaign
—
one orbit with an eclipse = one shadow-sunlight cycle
First 24 h from now Earth's shadow
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Plain-text summary

    

How it is computed

  • Orbit. Circular and sun-synchronous, with the inclination J2 requires at that altitude. The shadow is cylindrical and evaluated on 24 dates across the year, keeping the node time fixed: hence the range and the worst case.
  • Data link. There is no ground station: data leaves through relay satellites, whose network is [PENDING]. So no link geometry is assumed: you set the time with a link, and memory is sized to hold a whole orbit without one.
  • Average rate. One day's data spread over the time with a link. It is a floor: link acquisition, protocol overhead and retries push it up, and we agree the margin with you.
  • Energy. Average consumption times the length of the orbit and of the worst eclipse. It does not include the efficiency of the platform's converters, which goes in the ICD.