Proximity-1 Space Link Protocol
Encyclopedia
Proximity-1 Space Link Protocol is a short haul delivery protocol designed to establish a two-way communications link between a lander and an orbiter, negotiate data rate and communications mode, and reliably deliver data during short orbiter-to-surface contacts.
Developed by Consultative Committee for Space Data Systems
and documented in a number of CCSDS Recommendations
Proximity-1 is implemented on Mars Exploration Rovers
, Mars Odyssey, Mars Reconnaissance Orbiter
, Mars Express
as well as on Phoenix
Mars Lander
The frequency band used by this protocol is in the 400 MHz band
so as to reduce complexity of the ground craft. However, using this protocol over the standard CCSDS frequency bands is perfectly acceptable if the UHF allocation is not usable.
Developed by Consultative Committee for Space Data Systems
Consultative Committee for Space Data Systems
The Consultative Committee for Space Data Systems was formed in 1982 by the major space agencies of the world to provide a forum for discussion of common problems in the development and operation of space data systems...
and documented in a number of CCSDS Recommendations
Proximity-1 is implemented on Mars Exploration Rovers
Mars Exploration Rover
NASA's Mars Exploration Rover Mission is an ongoing robotic space mission involving two rovers, Spirit and Opportunity, exploring the planet Mars...
, Mars Odyssey, Mars Reconnaissance Orbiter
Mars Reconnaissance Orbiter
Mars Reconnaissance Orbiter is a NASA multipurpose spacecraft designed to conduct reconnaissance and Exploration of Mars from orbit...
, Mars Express
Mars Express
Mars Express is a space exploration mission being conducted by the European Space Agency . The Mars Express mission is exploring the planet Mars, and is the first planetary mission attempted by the agency. "Express" originally referred to the speed and efficiency with which the spacecraft was...
as well as on Phoenix
Phoenix (spacecraft)
Phoenix was a robotic spacecraft on a space exploration mission on Mars under the Mars Scout Program. The Phoenix lander descended on Mars on May 25, 2008...
Mars Lander
The frequency band used by this protocol is in the 400 MHz band
- 437.1000 MHz
- 440.7425 MHz
- 444.3850 MHz
- 448.0275 MHz
so as to reduce complexity of the ground craft. However, using this protocol over the standard CCSDS frequency bands is perfectly acceptable if the UHF allocation is not usable.