OPERATIONS
Science Operations
SOHO Telemetry Subformat Definitions — Feb 10,11 1997 to Sept 25,26 1997
February 10,11 1997: Submodes 5 and 6 were added, respectively.
Submode 5 was added into the programmable submode. Submode 5 added 12 extra packets to LASCO/EIT (24 —> 36 packets) and became the new "nominal" operating submode replacing Submode 1. Submode 1 was patched to give all SUMER science telemetry to LASCO/EIT and renamed as Submode 6.
Number of Packets Acquired Per APID in Each Subformat
| APID | Packet Size (in bytes) | Submode 2 (LASCO/EIT high) | Submode 3 (CDS high) | Submode 4 (SUMER high) | Submode 5 (NOMINAL) | Submode 6 (LASCO/EIT extra) | |
| CDS | LR | 300 | 12 | - | 12 | - | - |
| MR | 300 | - | - | - | 72 | 72 | |
| HR | 300 | - | 144 | - | - | - | |
| LASCO/EIT | LR | 412 | - | 24 | 24 | 36 | 72 |
| HR | 348 | 144 | - | - | - | - | |
| SUMER | LR | 416 | - | - | - | 48 | - |
| HR | 416 | - | - | 96 | - | - |
Telemetry Rate (bits/s) Acquired Per APID in Each Subformat
| APID | Packet Size (in bytes) | Submode 2 (LASCO/EIT high) | Submode 3 (CDS high) | Submode 4 (SUMER high) | Submode 5 (NOMINAL) | Submode 6 (LASCO/EIT extra) | |
| CDS | LR | 300 | 1921.5 | - | 1921.5 | - | - |
| MR | 300 | - | - | - | 11529.0 | 11529.0 | |
| HR | 300 | - | 23058.0 | - | - | - | |
| LASCO/EIT | LR | 412 | - | 5277.7 | 5277.7 | 7916.6 | 15833.2 |
| HR | 348 | 26747.3 | - | - | - | - | |
| SUMER | LR | 416 | - | - | - | 10657.9 | - |
| HR | 416 | - | - | 21315.9 | - | - |
