Downlink Desk Operator's Manual

DMC-DLD-A-00-00-00-00A-006A-ADescriptiveIssue 0012026-11-04UnclassifiedQA: UnverifiedApplies to Downlink Desk 0.17.x

Downlink Desk – List of terms

TermMeaning in this manual
AcknowledgeRecord that an operator has seen an alert. The alert stays in the list until its condition clears.
AlarmThe higher alert severity. A value is outside its alarm limits, or a condition needs attention now.
Audit trailThe signed record of every operator action. Each entry carries a fingerprint (hash) of the one before it.
Call signThe short identifier, usually initials, that signs every action you take.
CautionThe lower alert severity. A value is outside its caution limits, or a condition may need attention.
ChannelOne telemetry value, such as a battery voltage or temperature.
DriftA channel moving away from its learned normal for the same point in the orbit, even while inside its limits.
EclipseThe part of each orbit in Earth's shadow.
EventAn alert about something that happened once, such as a restart, rather than a condition that continues.
FetchOne run of the job that collects new frames from SatNOGS, every 30 minutes by default.
FrameOne packet of telemetry received by a ground station.
HandoverThe signed transfer of the console from one operator to the next.
ShelveHide an alert for a set time, with a reason. Shelving is signed in the audit trail.
StaleNo new decoded frames for longer than the stale period, 12 hours by default.