Annual Annual HPWRENHPWRENUsers Users MeetingMeeting

November 6, 2007November 6, 2007

MOBLAS 4NASA

Goddard Space Flight CenterGreenbelt, MD

Howard DonovanHoward DonovanEngineering and Operations ManagerEngineering and Operations Manager

Julie HorvathJulie HorvathMission and Data Operations ManagerMission and Data Operations Manager

Kenneth TribbleKenneth TribbleMOBLAS 4 Station ManagerMOBLAS 4 Station Manager

NASA NASA SSatellite atellite LLaser aser RRanging Programanging ProgramGoddard Space Flight CenterGoddard Space Flight Center

Honeywell Technology Solutions Inc.Honeywell Technology Solutions Inc.

NASA NASA SLRSLR NetworkNetwork

MOBLAS 4MOBLAS 4 San Diego, CaliforniaSan Diego, CaliforniaMOBALS 5MOBALS 5 Yatharagga, AustraliaYatharagga, AustraliaMOBLAS 6MOBLAS 6 Hartebeesthoek, South AfricaHartebeesthoek, South AfricaMOBLAS 7MOBLAS 7 GSFC, Greenbelt, MarylandGSFC, Greenbelt, MarylandMOBLAS 8MOBLAS 8 Tahiti, French PolynesiaTahiti, French PolynesiaTLRSTLRS--33 Arequipa, PeruArequipa, PeruTLRSTLRS--44 Haleakala, HawaiiHaleakala, HawaiiMLRSMLRS Fort Davis, TexasFort Davis, Texas

MOBLAS 4MOBLAS 4 San Diego, CaliforniaSan Diego, CaliforniaMOBALS 5MOBALS 5 Yatharagga, AustraliaYatharagga, AustraliaMOBLAS 6MOBLAS 6 Hartebeesthoek, South AfricaHartebeesthoek, South AfricaMOBLAS 7MOBLAS 7 GSFC, Greenbelt, MarylandGSFC, Greenbelt, MarylandMOBLAS 8MOBLAS 8 Tahiti, French PolynesiaTahiti, French PolynesiaTLRSTLRS--33 Arequipa, PeruArequipa, PeruTLRSTLRS--44 Haleakala, HawaiiHaleakala, HawaiiMLRSMLRS Fort Davis, TexasFort Davis, Texas

MOBMOBile ile LLaseraser RRAAngingnging SSystemystem 44MOBLASMOBLAS 4, San Diego, CA.4, San Diego, CA.

MOBLAS 4 San Diego, CaliforniaMOBLAS 4 San Diego, California

Satellite Laser RangingSatellite Laser RangingMeasure Time of Flight (TOF)Measure Time of Flight (TOF)

Time Interval Unit (TIU) Time Interval Unit (TIU) –– High Precision Stop WatchHigh Precision Stop WatchTelescope Telescope –– 30” Schmidt30” Schmidt--CassigraineCassigraineShort Pulse Laser Short Pulse Laser –– 200 picoseconds or 0.2 X 10200 picoseconds or 0.2 X 10--12 12 secondsecond

Satellite Laser RangingSatellite Laser Ranging

Provides Precision Range MeasurementProvides Precision Range Measurement~5mm over a 6,000 km range (3,700 miles)~5mm over a 6,000 km range (3,700 miles)

International Laser Ranging ServiceInternational Laser Ranging Service

Provides global satellite and lunar laser ranging data and their related products to support geodetic and geophysical research activities as well as IERS products important to the maintenance of an accurate International Terrestrial Reference

Frame (ITRF). The service develops the necessary global standards/specifications and encourages international adherence to its conventions.

http://ilrs.gsfc.nasa.gov/

SLR Science ContributionsSLR Science Contributions

Tectonic Plate MotionTectonic Plate MotionGravity FieldGravity FieldAtmospheric Pressure LoadingAtmospheric Pressure LoadingEarth RotationEarth RotationInternational Terrestrial Reference FrameInternational Terrestrial Reference FrameAtmospheric Refraction ModelAtmospheric Refraction ModelAltimeter CalibrationAltimeter CalibrationGeocenter Determination and MonitoringGeocenter Determination and MonitoringOcean Tides and Sea Level MonitoringOcean Tides and Sea Level MonitoringLand and Ice TopographyLand and Ice TopographySolid EarthSolid Earth--Core/Mantle InteractionCore/Mantle InteractionPostPost--Glacial ReboundGlacial ReboundPart of the International Network of Space Geodetic ObservatoriePart of the International Network of Space Geodetic Observatoriess

VLBI, GPS, DORIS and PRARE systemsVLBI, GPS, DORIS and PRARE systems

Tectonic Plate MotionTectonic Plate MotionGravity FieldGravity FieldAtmospheric Pressure LoadingAtmospheric Pressure LoadingEarth RotationEarth RotationInternational Terrestrial Reference FrameInternational Terrestrial Reference FrameAtmospheric Refraction ModelAtmospheric Refraction ModelAltimeter CalibrationAltimeter CalibrationGeocenter Determination and MonitoringGeocenter Determination and MonitoringOcean Tides and Sea Level MonitoringOcean Tides and Sea Level MonitoringLand and Ice TopographyLand and Ice TopographySolid EarthSolid Earth--Core/Mantle InteractionCore/Mantle InteractionPostPost--Glacial ReboundGlacial ReboundPart of the International Network of Space Geodetic ObservatoriePart of the International Network of Space Geodetic Observatoriess

VLBI, GPS, DORIS and PRARE systemsVLBI, GPS, DORIS and PRARE systems

Tectonic Plate MotionTectonic Plate Motion

Gravity FieldGravity Field

Altimeter CalibrationAltimeter Calibration

Apollo 15Apollo 15Retroreflector Panel Retroreflector Panel

Apollo 11Apollo 11Retroreflector Panel Retroreflector Panel

NNextext GGenerationeneration SLRSLR

LRO

Greenbelt, MD

Lunar Lunar ReconnaissanceReconnaissance OrbiterOrbiter

MOBLAS 4 Located in Mt. LagunaMOBLAS 4 Located in Mt. Laguna

MOBLAS 4 is in a Remote LocationMOBLAS 4 is in a Remote Location

View from HPWREN View from HPWREN MtMt. Laguna West. Laguna West

NASA SLR Uses of the HPWRENNASA SLR Uses of the HPWREN

Internet AccessInternet AccessSustaining EngineeringSustaining EngineeringHourly Data TransferHourly Data TransferSoftware UpgradesSoftware UpgradesData ResearchData ResearchILRS Network CommunicationsILRS Network CommunicationsElectronic MailElectronic MailEmergencyEmergencyRemote StatusRemote StatusSatellite Prediction TransferSatellite Prediction TransferCritical Go/NoCritical Go/No--Go OperationsGo Operations

Internet AccessInternet AccessSustaining EngineeringSustaining EngineeringHourly Data TransferHourly Data TransferSoftware UpgradesSoftware UpgradesData ResearchData ResearchILRS Network CommunicationsILRS Network CommunicationsElectronic MailElectronic MailEmergencyEmergencyRemote StatusRemote StatusSatellite Prediction TransferSatellite Prediction TransferCritical Go/NoCritical Go/No--Go OperationsGo Operations

MOBLAS 4 Hosts other Science MissionsMOBLAS 4 Hosts other Science Missions

HPWRENAntenna

DORIS Antenna

To MOBLAS 4

EarthScope

DORIS MET3

GPS

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2006-10 2006-11 2006-12 2007-01 2007-02 2007-03 2007-04 2007-05 2007-06 2007-07 2007-08 2007-09

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sMOBLAS 4 Produces 5% of the Global Data SetMOBLAS 4 Produces 5% of the Global Data Set

MOBLAS 4 MOBLAS 4 FireFire 10/24/0710/24/07

HPWREN Valuable to NASA SLRHPWREN Valuable to NASA SLR

Highly ReliableHighly ReliableHigh BandwidthHigh BandwidthCritical Safety ToolCritical Safety ToolProvides Easy Access to Provides Easy Access to Our Remote LocationOur Remote Location

Thanx HPWREN !Thanx HPWREN !Thanx HPWREN !Thanx HPWREN !