Plans for a fully automated SGSLR system - NASA...ILRS Technical Workshop Riga 1-6 Oct, 2017 (McGarry) 17 Additional Functions for Far Remote uNeed sky camera to view in both day and

ILRSTechnicalWorkshopRiga1-6Oct,2017(McGarry) 1

Space Geodesy Satellite Laser Ranging

JanMcGarry1,HowardDonovan2,JulieHorvath2,JohnCheek3,EvanHoffman1,RandallRicklefs4,ChristopherClarke2 ,AnthonyMann2,ScottWetzel2,JohnDegnan3

1NASAGoddardSpaceFlightCenter2KBRwyle (formerlyHTSI)3SigmaSpaceCorporation4CybiomsCorporation

PlansforafullyautomatedSGSLRsystem


Abstract

TheSpaceGeodesySatelliteLaserRangingsystem(SGSLR)isbeingdesignedwiththegoaloffullautomation. LessonslearnedonNGSLRand othersystems arebeingimplementedinSGSLR. AutomationwillbeachievedinstageswiththefirststagebeingremoteoperationalcapabilityattheMcDonaldandNy-Alesund SGSLRsystemswhenmanyoftheoperationaltaskswillalreadybeautomated. Ultimately,SGSLRwillsendscienceandmonitoringdatato,andreceivecommandsfrom, theSpaceGeodesyNetworkOperationCenter (SGNOC),similartothewayspacecraftnowoperate. Thehardwareandsoftwareneededto achievefullautomation,andthestagesof implementationwillbediscussed.


PartII:Future


AdditionalFunctionsforFarRemote

u Needskycameratoviewinbothdayandnightandwillneedtosendskyimagestoremoteoperator(thisfunctionshouldbeoperationalin2018)

u Needsecuremethodforoperatortosendrequesttohardwaretore-enablethelaser,orwillneedforU.S.FederalAviationAdministrationtoallowsoftwaretosendrequesttore-enablethelaser

u PrimarysafetyandsecurityresponsibilitywillstillliewithoperatorBUTthehardware/softwarewillnowstarttoperformthesefunctionsinparallel


AdditionalFunctionsforFullAutomation

u Skycameraimagesmustbeautomaticallyanalyzedtodeterminewheretherearecloudsandwhereitisclearenoughtorange.Softwaremustbeabletochangetargettrackedtooneincleararea.

u Softwaremustbeabletorequestthatthehardwarere-enablethelaserafterblockingitforanaircraftavoidancesituation.

u SoftwareITSecuritymusthavebeentestedandproven.u SGSLRsystemhardware/softwaremustbeprimarilyresponsibleforsafetyandsecurity.


TallPolesforFullAutomationandhowweareworkingtosolvethem

u ParticipatingonanFAARegulationCommitteeandleadingtheefforttomodifytheregulationsforoutdoorlaserusetoincludeautomatedlaseroperations.Neededtobeabletore-enablethelaserwithoutahuman.

u PlanninganddesigningthecomputersystemstoensuretheyarecompliantwithincreasinglystringentNASA(andNorwegian)ITSecurityrequirements.Automatedsystemsmustbeextremelysecure.

u Workingtowardautomatedcloudrecognitionalgorithmandsoftware.Weneedtoautomaticallydeterminewhentoswitchtrackingtoanotherpartofthesky.

u Workingourwaythroughthedecisionpathsandwhat-ifsofanautomatedsystemtoensurewehaveallofsafetyandallofsecurityplannedforandcovered,andgettherequiredNASAapprovals.


ComputerArchitectureforITSecurity


PathtoFullAutomationu Initialoperationduringinstallationwillbelocal(operatorin

theSGSLRshelteroperatingsystemthroughRAT).u Duringcommissioningthesystemisexpectedtoberemotely

operatedfromnearbySGPoperationsbuildingusingRemoteAccessTerminal(RAT).Testingoftheautomatedoperationswilltakeplacepart-timewiththeoperatorwatchingandpart-timeonitsown.

u Aftercommissioningthesystemswillbeoperatedremotelyformultipledaylightshiftsperweek,whileallowingthesystemtoperformautomatedoperations,mostlyatnight.

u Theknowledgegainedduringtheseperiodswillallowoptimizationoftheautomatedoperationsresultinginfullautomationinthefuture.

Inallcasesdataflowsto/fromtheSGNOC


FullAutomationatSGSLRu ThereisnohumanoperatorforanySGSLRstation.u AhumanmonitorstheSpaceGeodesyNetworkattheSGNOCor

partnerNOC:24x7initially,thenperhaps8x5withtheSGNOCperformingautomated“withoutanyhuman”operations,monitoringperformanceandsendingoutalerts/alarms.

u EngineersatGoddardpickupreportsintheiremailsonwhathappenedateachsystemandthepreviousdayperformance,aswellastrendsoverthelastweek,month,year.

u Engineershavethecapabilitytoremotelystopoperationsatastationandtorunremotediagnostics.

u On-sitetechniciansperformroutinemaintenanceonSGSLRandVGOS.Ifneeded,engineerscantalktechniciansthroughmorediagnosticsandsomerepairs,watchingthroughstreamingvideo.Mostsubsystemswillbedesignedtohavecomponentsreplacedwithon-sitesparesorsparesshippedfromthecentralfacility.

Documents

Plans for a fully automated SGSLR system - NASA...ILRS Technical Workshop Riga 1-6 Oct, 2017 (McGarry) 17 Additional Functions for Far Remote uNeed sky camera to view in both day and