TM figures
| Allocated TM | 20.5 kbits/s | |
|---|---|---|
| Download capacity per orbit | 6.642 GB | = 53.136Gbits |
Subtelescopes/units that can be commanded independently
SoloHI consists of 1 white-light telescope with wide FOV. However, data can be read out either from the whole detector or from well-defined subfields:
| detector size (radial x transverse) | FOV (radial x transverse) | TM/raw image | compression rates | |
|---|---|---|---|---|
| SoloHI Full frame image | 3968 px * 3968 px | 5º-45º x 5º-45º (40ºx40º) | info missing | lossless (factor 2.5) - lossy (up to 50) |
| SoloHI inner FOV subframe image | 192 px * 512 px | 5.8º-7.68º x 5º (1.88ºx5º) 13.5º-15.38º x 5º 18.5º-20.38º x 5º | ||
| Radial Swath subframe image | 3968 px * 512 px | 5º-45º x 5º (40ºx5º) |
Observational modes
Main science programs
source: SoloHI UM - SSD-DOC-SOLOHI-013 Rev. B draft 5
The SoloHI baseline observing program will be defined to repeat for each occurrence of the same unique orbit (i.e. each orbit of the trajectory within the same resonance with Venus). Therefore, a SoloHI baseline observing program will be defined for each orbit phase in NMP/EMP and will be executed for all orbits within that resonance.
Example of such an orbit plan is below:
The details of each observing mode are still to be provided by SoloHI.
| Observing modes - Example plan | Use case | #images / day | Science data volume / day | SoloHI data rate | Observing duration / orbit | |
|---|---|---|---|---|---|---|
| (Gbits) estimate | (kbits/s) | (days) example | ||||
| Perihelion programs: | 0.28-0.29 AU | |||||
| 1296 | 2.22 | 26.5 | 3 | |||
| 468 | 2.54 | 30.3 | 3 | |||
| Near-Perihelion programs: | 0.29-0.36 AU | |||||
| SoloHI Near-perihelion Synoptic Program | 348 | 1.69 | 20.3 | 5 | ||
| SoloHI Solar Wind Turbulence Near-perihelion | 750 | 1.94 | 23.2 | 2 | ||
| SoloHI Shock Formation Near-perihelion | 516 | 2.45 | 29.3 | 2 | ||
| Far-Perihelion programs: | 0.36-0.42 AU | |||||
| SoloHI Far-Perihelion Synoptic Program | 132 | 1.64 | 19.7 | 7 | ||
Southern  Out-of-ecliptic programs: | 0.5-0.7 AU | |||||
| SoloHI Southern Synoptic Program | 104 | 0.84 | 10.3 | 8 |
Dependent on the trajectory
Examples of more-detailed observing program for 1 type of orbit during the mission:
SoloHI concept study report Dec 2011, needs update!