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Thomas Varghese

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Publication

Featured researches published by Thomas Varghese.

Laser Radar Ranging and Atmospheric Lidar Techniques | 1997

Two-color SLR experiments at the GSFC 1.2-m telescope

Thomas W. Zagwodzki; Jan F. McGarry; John J. Degnan; Thomas Varghese

Satellite range measurements which include differential time of flight measurement between simultaneous doubled and tripled Nd:YAG laser pulses are being made at the NASA/Goddard Space Flight Centers 1.2m telescope tracking facility. A description of the streak camera-based range receiver is given along with the differential time of flight measurement. Typical streak camera return waveforms are displayed from satellite tracks which include: ADEOS/RIS, AJISAI, GFZ-1, STELLA, and TOPEX.

Archive | 1993

Prelaunch optical characterization of the Laser Geodynamic Satellite (LAGEOS 2)

Peter O. Minott; Thomas W. Zagwodzki; Thomas Varghese; Michael Seldon

Archive | 2010

Transmitter Point-Ahead using Dual Risley Prisms: Theory and Experiment

John J. Degnan; Jan F. McGarry; Thomas W. Zagwodzki; Thomas Varghese

Archive | 2008

NGSLR: Sharing Eye-safe Kilohertz SLR with Transponder Ranging

Jan F. McGarry; Thomas W. Zagwodzki; Thomas Varghese; John J. Degnan; John W. Cheek; Christopher Clarke; Peter J. Dunn; Anthony Mallama; Anthony Mann; Don Patterson; Randall Ricklefs

Archive | 1993

Test results from LAGEOS-2 optical characterization using pulsed lasers

Thomas Varghese; Michael Selden; Thomas Oldham; Christopher Clarke; Thomas W. Zagwodzki

Contributions of Space Geodesy to Geodynamics: Technology | 2013

Streak Camera Based Slr Receive System for High Accuracy Multiwavelength Atmospheric Differential Delay Measurements

Thomas Varghese; Christopher Clarke; Thomas Oldham; Michael Selden

Archive | 2009

NASA NGSLR Precise (~ 1 ns) Transmit Epoch Timing to On-Station Time Reference for LRO Transponder Support

Thomas Varghese; Jan F. McGarry; Thomas W. Zagwodzki

Archive | 1993

Two color satellite laser ranging upgrades at Goddard's 1.2m telescope facility

Thomas W. Zagwodzki; Jan F. McGarry; John J. Degnan; Thomas Varghese

Archive | 1993

Streak camera based SLR receiver for two color atmospheric measurements

Thomas Varghese; Christopher Clarke; Thomas Oldham; Michael Selden

Archive | 1993

Preliminary results from the portable standard satellite laser ranging intercomparison with MOBLAS-7

Michael Selden; Thomas Varghese; Michael Heinick; Thomas Oldham

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Collaboration

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Thomas W. Zagwodzki

Goddard Space Flight Center

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Jan F. McGarry

Goddard Space Flight Center

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Michael Selden

AlliedSignal

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Thomas Oldham

AlliedSignal

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Christopher Clarke

AlliedSignal

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John J. Degnan

Goddard Space Flight Center

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Anthony Mallama

Raytheon

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John W. Cheek

Goddard Space Flight Center

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Peter J. Dunn

Analytical Services

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