Status of Delta-DOR Cross-Support Activities at JPL

James S. Border Jet Propulsion Laboratory

Fall 2016 CCSDS Meeting Rome, Italy, October 20-26, 2016 Jet Propulsion Laboratory California Institute of Technology Current Cross-Support Activity

 DDOR cross-support continues for Hayabusa-2

 Mixed baselines have been supported with fast data delivery

 Little activity planned in 2017, but more in 2018  JPL is nearing completion of ISRO MOM DDOR cross-support

 Zodiac/Cortex open loop receiver has worked well at Bangalore 32m  JPL can process Service Request as documented in MB, Issue 2

 Channel setup is a manual step • This does not occur automatically upon receipt of Service Request

 Multi-spacecraft recordings can be accommodated manually • This does not occur automatically upon receipt of Service Request • There are limitations as to what can be recorded  New missions (including JPL and APL missions) will use a DDOR Service Request interface as documented in MB, Issue 2

 Project to schedule passes

 DDOR engineer at JPL to issue Service Request  Legacy missions still use an interface that requires action by the project sequence team

CCSDS Meeting, Rome, Italy, October 20-26, 2016 2 Jet Propulsion Laboratory California Institute of Technology Cross-Support Planned for 2018

 3 JPL Mars missions to support

 InSight

 MarCO1

 MarCO2  SpaceX Mars mission at S-band  Critical events requiring DDOR support for

 Hayabusa-2 (JAXA)

 New Horizons (APL)

 OSIRIS-Rex (GSFC)

 Solar Probe Plus (APL)

CCSDS Meeting, Rome, Italy, October 20-26, 2016 3 Jet Propulsion Laboratory California Institute of Technology Cross-Support Planned for 2020

 JPL Mars 2020 mission  SpaceX Mars mission  United Arab Emirates Mars mission  ISRO MOM-2 Mars mission  Critical events requiring DDOR support for

 Hayabusa-2 (JAXA)

CCSDS Meeting, Rome, Italy, October 20-26, 2016 4 Jet Propulsion Laboratory California Institute of Technology Open Loop Receiver Upgrades at JPL-1

 WVSR was re-delivered in 2015 with minor upgrades  New OLR implementation in progress

 Part of the all-digital DSN “Common Platform”

 RF sub-band downconverted and digitized • X-band is 8200-8600 MHz • Ka-band is 31800-32300 MHz

 Same digital IF is fed to both closed-loop and open-loop processors

 Each OLR can accept data from up to 16 frequency channels • Each frequency channel can be from either same or different RF

 Higher open loop data recording rate is possible • 512 Mbit/s or higher

 Planned operational date: January 2018  WVSR to be retired in early 2018

CCSDS Meeting, Rome, Italy, October 20-26, 2016 5 Jet Propulsion Laboratory California Institute of Technology Open Loop Receiver Upgrades at JPL-2

 Native data recording format to be RDEF  DDOR SW will be updated to directly process RDEF  Testing will be possible

 Concurrent recording on WVSR and OLR

 Data translation between VDR and RDEF  OLR will be available to support Bepi PN ranging at 24 Mcps

 SW is being developed to process PN T2B ranging from WVSR/OLR recordings  JPL is planning to support high chip rate PN ranging only with open loop recordings

 Low chip rates (e.g. 3 Mcps) can also be supported by closed loop processing

CCSDS Meeting, Rome, Italy, October 20-26, 2016 6 Jet Propulsion Laboratory California Institute of Technology Small Transponder Development at JPL

 Digital transponder developed at JPL for Cubesats

 Supports 2-way Doppler, transparent ranging, and DOR  Work in progress to add regenerative PN ranging capability

 Maximum chip rate of ~2 Mcps

 Intention is to make development general enough to port to other JPL digital transponders  This work may support telemetry-based ranging

 PN uplink is common for PN and telemetry-based

 Primary interest is for Ka2 missions (26 GHz) with high data rates  It may be possible to also support PN DOR

CCSDS Meeting, Rome, Italy, October 20-26, 2016 7