Glossary

C3: Command, communication, and control card. It is the flight computer for OreSat.
CAN: Control Area Network. A message bus for embedded systems common in the automotive industry.
CANopen: A communication protocol and device profile specification for a CAN bus defined by CAN in Automation. More info at https://can-cia.org/
CCSDS: Consultative Committee for Space Data System. A committee of governmental space-agencies to discuss and develop standards for space data and information systems. See https://public.ccsds.org/default.aspx
CFC: Cirrus Flux Camera. The science payload for OreSat.
CFDP: CCSDS File Delivery Protocol. A CCSDS file transfer protocol to be used by space missions.
COB-ID: Communication Object Identifier. Used to identify a CANopen messages.
CubeSat: A small satellite is made up of multiples of 10cm × 10cm × 10cm cubic units.
DxWiFi: Long distance WiFi.
ECSS: European Cooperation for Space Standardization. Calibration of the ESA (European Space Agency), the European space industries, and several space agencies, to develop and maintain space mission standards for European space missions.
EDL: Engineering Data Link. The main communication data link between OreSat and UniClOGS used for commanding OreSat and uploading/downloading files to/from OreSat.
EMCY: Emergency Object. A broadcast CANopen message to mark an error on a node, used for diagnostics.
FlatClOGS: A development environment for UniClOGS software connected to FlatSat.
FlatSat: The development environment for OreSat. The dev OreSat is layout flat on a table, hence the name FlatSat.
HGS: Handheld Ground Station. Ground part of the OreSat Live system.
HIL: Hardware-in-the-loop. A test bench setup for testing and validating software with the real hardware.
Octet: A unit of 8-bits. In communications, it is common to the unit octet, as the unit byte has historically been platform-dependent, while an octet has always been 8-bits.
OD: Object Dictionary. The main data structure of a CANopen node.
OLAF: OreSat Linux Application Framework. The pythonic CANopen application framework for all OreSat Linux cards. See https://github.com/oresat/oresat-olaf
OPD: OreSat Power Domain. Allows the C3 to turn other cards on or off.
OreFlat: FlatSat and FlatClOGS together. A full HIL satellite and ground station for integration and testing.
OreSat: PSAS’s open source CubeSat. See https://www.oresat.org/
OreSat Live: The outreach payload for OreSat that stream live video of earth to an HGS.
OTA: Over the Air. Any type of wireless transmission.
PDO: Process Data Object. A broadcast type CANopen message.
PSAS: Portland State Aerospace Society. A student aerospace group at Portland State University. See https://www.pdxaerospace.org/
RPDO: Receive PDO. A RPDO is broadcast type message to be consumed by one node that can be sent from any other node.
SatNOGS: A open source global network of satellite ground stations. See https://satnogs.org/
SCET: Spacecraft Elapsed Time.
SDO: Service Data Object. A sequence of CANopen messages for a node to read or write a value to another node OD.
SDR: Software-Defined Radio. Radio communications that are traditionally implemented in hardware are instead implemented in software.
Telecommand: A command message sent to a satellite.
Telemetry: Health and status information from a satellite.
TPDO: Transmit PDO. A TPDO is broadcast type message sent from a node to be consumed by any other node.
UniClOGS: University Class Open Ground Station. The ground station for OreSat. See https://www.uniclogs.org/
USLP: Unified Space Data Link Protocol. A CCSDS communications protocol to be used by space missions for space-to-ground or space-to-space communications links.
XTCE: XML Telemetric and Command Exchange. An XML-based file for defining a spacecraft’s telemetry and telecommand data format.