11th International Workshop on Laser Ranging
The 11th International Workshop on Laser Ranging took place at
DEGGENDORF (Germany)
from September 21st to 25th 1998.
The local organization was performed by :
Bundesamt für Kartographie und Geodäsie
Fundamentalstation Wettzell
Sackenrieder Straße 25
D-93444 Bad Kötzting
Deutschland
Tel. : +49(0)9941/603-0
Fax : +49(0)9941/603-222
E-Mail : workshop@fs.wettzell.de
Program and List of Sessions of
the 11th Workshop on Laser Ranging
Session 1: Space Geodetic Technologies (G. Beutler) ---
invited papers only
Jan Kouba, Gerhard Beutler, Ruth Neilan:
COORDINATION OF INTERNATIONAL GPS SERVICE (IGS) ANALYSIS
R. Biancale, G. Tavernier:
THE DORIS SYSTEM
Frank Flechtner, Klaus Enninghorst, Jean-Claude Raimondo:
THE PERFORMANCE OF PRARE ON ERS-2 AND THE USE OF SLR DATA FOR PRARE RANGE CALIBRATION AND COORDINATE
James Campbell, Axel Nothnagel:
ON THE SYNERGISM OF VLBI AND SLR/LLR
Peter Dunn, Mark Torrence, David Smith, Ron Kolenkiewicz:
THE RELATIONSHIP OF LASER RANGING TO OTHER SPACE TECHNIQUES
Session 2: Scientific Achievments, Applications and future Requirements in
Space Geodesy (P. Wilson, S. Klosko)
R. Devoti, V. Luceri, P. Rutigliano, C. Sciarretta, G. Bianco:
SECULAR DRIFTS OF LOW DEGREE_ZONALS OBTAINED FROM SLR GEODETIC SATELLITES
R. Eanes:
TIME DEPENDENT GRAVITY EFFECTS
S.Klosko:
SLR CONTRIBUTIONS TO DETERMINING THE GRAVITATIONAL FIELD AND ITS VARIATIONS
P. Schwintzer, R. Koenig, Ch. Reigber, L. Grunwaldt, R. Neubert:
CHAMP MISSION CHARACTERISTICS AND BENEFITS FROM SLR
Mark Torrence:
REALIZATION OF THE EGM96 REFERENCE FRAME
E.Pavlis:
REALIZATION OF THE EGM96 REFERENCE FRAME ITALIAN US LASER MISSION
A.Novotny:
HUMAN FACTOR AS IMPORTANT PHENOMENON OF GLOBAL SLR NETWORK
Session 3: Data Analysis and Models (P. Dunn, R. Noomen)
W. R. Dick, M. Mareyen, M. Meinig, K. Oppitz, B. Richter:
THE CONSISTENCY OF THE GLOBAL SLR NETWORK
V.Glotov, V.Metrikas, S.Revnivykh, N.Parkhomenko:
ANALYSIS OF THE WESTPAC SATELLITE ORBITAL PARAMETERS AND MEASUREMENT ACCURACY
Richard S. Hujsak, G. Charmaine Gilbreath:
GPS SEQUENTIAL ORBIT DETERMINATION USING SPARSE SLR DATA
R. Koenig, Z. Chen, P. Schwintzer, Ch. Reigber, R. Biancale:
THE CONTRIBUTION OF GFZ-1, DIADEME-1C, AND DIADEME-1D SLR DATA TO GRAVITY FIELD RECOVERY
Toshimichi OTSUBO, Yasuhiro KOYAMA:
GLOBAL COORDINATES OF KEYSTONE STATIONS DERIVED FROM SLR AND VLBI OBSERVATION
Judit G. Ries, Peter J. Shelus:
ANOTHER APPROACH TO LUNAR DATA ANALYSIS: THE APPLICATION OF BAYESIAN STATISTICS
M. Rutkowska, R. Noomen:
RANGE BIASES AND STATION POSITIONS ANALYSIS FOR NETWORK SOLUTIONS DERIVED FROM SLR DATA IN THE PERIOD 1993-1995
John Seago, et. al.:
ENHANCEMENTS TOWARD ROBUST NORMAL POINT GENERATION
Session 4: New or upgraded stations (G. Bianco)
Poster: Station reports
G. Bianco M. Selden, M. Bieneman C. Clarke, D. McClure, K. Mogan, D. Moon, B. Nallappa, T. Oldham, R. Sala, R. Stringfellow:
MLRO SYSTEM PROGRESS REPORT
M. Cech, K. Hamal, H. Jelinkova, A. Novotny, I. Prochazka,Y.E.Helali, M.Y.Tawadros:
UPGRADING OF THE HELWAN LASER STATION 1997-98
Olivier Charade, Alain Bonneville, Stéphane Labrosse, François Barlier, John Bosworth, Miriam Baltuck, Jean Louis Counil:
THE NEW TAHITI GEODETIC OBSERVATORY
K.Elango, P.Soma, K.Rameshchandra, S. Rangarajan:
SITE SELECTION CRITERIA FOR LOCATING LASER STATION AT ISTRAC CAMPUS, BANGALORE, INDIA
G. Charmaine Gilbreath:
SATELLITE LASER RANGING CAMPAIGNS FROM NRL@STARFIRE: AN OVERVIEW
K.Hamal, I.Prochazka:
PICO EVENT TIMER BASED SLR STATION UPGRADE
J. Nicolas,P. Exertier,P. Bonnefond, F. Pierron and the Grasse SLR group:
FIRST RESULTS WITH THE FRENCH TRANSPORTABLE LASER RANGING STATION
Matti Paunonen:
THE NEW SATELLITE LASER RANGING SYSTEM OF METSAHOVI
F.Pierron, J.Nicolas and the Grasse SLR group:
STATUS AND NEW CAPABILITIES OF THE FTLRS
(FRENCH TRANSPORTABLE LASER SYSTEM)
Randall L. Ricklefs, Dan Nugent, Jan L. F. McGarry:
LINUX-BASED ON-SITE DATA ANALYSIS SYSTEMS
V.Shargorodsky, V.Vasiliev:
TOWARDS A REALLY A PORTABLE SLR STATION
V.Shargorodsky, V.Burmistrov, Yu. Roy, M.Baryshnikov, V.Vasiliev:
A NEW RUSSIAN SLR STATION NEAR MOWCOW: PURPOSE AND DESIGN FEATURES
Guo Tangyong:
NEW SOFTWARE PACKAGE FOR SLR SYSTEM
Guo Tangyong, Xia Zizhong, Ye Wenwei, Li Cuixia, Cai Qinfu, Tan Yecun , He Sihau, Liu Hangang:
CMONOC TRANSPORTABLE SLR SYSTEM
M. Y. Tawadros:
HELWAN SATELLITE LASER STATION FOR OBSERVING ARTIFICAL EARTH SATELLITES
YANG FuMin, TAN DeTong, HUANG Cheng, ZHAO You, FAN ChunBo, GUO TangYong, XIA hiZhong, WU Bin, JIANG ChongGuo, FENG HeSheng:
STATUS AND PLANS OF CHINESE SLR NETWORK
Xia Zhizhong:
THE COLLOCATION OBSERVATION RESULTS USING SLR AND GPS TECHNIQUES AT A TLRS STATION IN CHINA
Zhao You, Fan Cun-bo, Gong Yan, Liu Cheng-zhi, Liu Zhi, Shi Jian-yong Han Xing-wei, Zhang Xing-hua, Cheng Hai-yan, Jing Hong-ling, Cui Dou-xing:
THE UPGRADE OF CHANGCHUN SLR
J.Bartoszak, E.Butkiewicz, S.Schillak:
STATUS REPORT OF THE BOROWIEC SLR 1997-1998
A.AL-Ghamdi:
SALRO SYSTEM UPGRADES AND FUTURE PLAN
Session 5: Lunar Laser Ranging (U. Schreiber)
K. Nordtvedt:
OPTIMIZING THE OBSERVATION SCHEDULE IN LLR AND SIMILAR EXPERIMENTS.
St. Riepl, U. Schreiber, W. Schlüter:
IMPROVEMENTS TO LLR AND SLR BY ADAPTIVE OPTICS
J. Müller; K. Nordtvedt, M. Schneider, D.Vokrouhlick:
IMPROVED DETERMINATION OF RELATIVISTIC QUANTITIES FROM LLR
Mangin Jean-Francois;Ferandy Dominique;Furia Maurice;Glentzlin Monique;Journet Alain;Torre Jean-Marie;Vigouroux Ge'rard:
When Dream and Reality meet ...
Session 6: Target Design, Signature and Biases (V. Vassiliev)
Mark A. Davis, G. Charmaine Gilbreath, Peter Rolsma, James Georges, Gregg Snyder. Richard Eichinger:
NRL@SOR SLR OBSERVATION VERIFICATION TECHNIQUES USING LAGEOS
James A. Georges, G. Charmaine Gilbreath, Peter Rolsma:
DEVELOPMENT OF A LASER RANGING TARGET OPTIMIZ ED FOR LEO SPACECRAFT
R. Neubert, L. Grunwaldt, J. Neubert:
THE RETRO REFLECTOR FOR THE CHAMP SATELLITE:FINAL DESIGN AND REALIZATION
V.Shargorodsky, V.Vasiliev, B.Greene, H.Kunimori:
THE WESTPAC SATELLITE Project
V.Shargorodsky, V.Burmistrov, N.Parkhomenko, V.Vasiliev:
THE WESTPAC SATELLITE DESIGN FEATURES AND FIRST RESULTS OF IST RETURN SIGNAL ANALYSIS
V.Shargorodsky, V.Burmistrov, N.Parkhomenko, V.Vasiliev:
RETROREFLECTOR ARRAY ON BOARD OF THE ZEYA SATELLITE:
V.Vasiliev, I.Gashkin, M.Belov, V.Shargorodsky:
A NEW APPROACH TO A SUBMILLIMETER ACCURACY SLR TARGET DESIGN
Session 7: Atmospheric correction and Multiwavelength Ranging (G. Kirchner)
POSTER: Jiang Hu:
Comparison of Atmospheric Density Models in Precision Orbit Determination of Satellite Starlette
POSTER: Souilhac D., Billerey D.:
H2-RAMAN-SHIFTING OF THE 512 NM DOUBLED FREQUENCY ND:YAG LASER FOR MULTIPLE LASER RANGING APPLICATIONS
POSTER: Souilhac D., Billerey D.:
RADAR AND APPLICATIONS OF LIDARS FOR ENVIRONMENTAL REMOTE SENSING
OVERVIEW OF PERFORMANCE CHARACTERISTICS OF LASER G.M.Appleby and A.T. Sinclair:
VALIDATION OF ATMOSPHERIC CORRECTION MODEL FOR HERSTMONCEUX USING IN SITU RADIOS ONDE DATA.
B. Greene, Y. Gao, W. Bane:
ATMOSPHERIC CORRECTION AND MULTIWAVELENGTH RANGING
G. Bianco, M. Selden, M. Bieneman C. Clarke, D. McClure, K. Mogan, D. Moon, B. Nallappa, T.
Oldham, R. Sala, R. Stringfellow:
TWO-COLOR RANGING UPGRADE FOR THE MLRO SYSTEM
Armin Böer:
TIGO - SLR 2 COLOR RANGING; OVERVIEW - FIRST RESULTS
Ivan Prochazka et al.:
MULTICOLOR MEASUREMENTS / WITH SPAD / WITH PPET
Session 8: Advanced Systems (J. Degnan)
John J. Degnan:
SLR2000 PROJECT: ENGINEERING OVERVIEW AND STATUS
Titterton P., Sweeney, H., Leonard D.:
SYSTEM/USAGE IMPACT OF OPERATING THE SLR2000 AT 2 KHZ
Ben Greene:
SATELLITE LASER RANGING (SLR) DESIGN FOR ANTARCTICA
W. Gurtner, E., Pop, E., Utzinger J.:
AUTOMATION AND REMOTE CONTROL OF THE ZIMMERWALD SLR STATION
G.Bianco M.Selden,M.Bieneman C. Clarke, D. McClure, K. Mogan, D. Moon, B. Nallappa,T.Oldham R. Sala, R. Stringfellow:
MLRO SYSTEM PROGRESS REPORT
I.Prochazka, K.Hamal, S.M.Pershin:
SPAD DETECTOR FOR LASER RANGING ON MARS SURFACE
Session 9: Detectors and Filters (I. Prochazka)
B Greene, L Dahl, W Bane:
RANGE MEASUREMENT PERFORMANCE OF EOS SATELLITE LASER
RANGING (SLR) SYSTEMS EMPLOYING SIMULTANEOUS APD AND MCP-PMT DETECTION
SYSTEMS
Schreiber U., Haufe K.H.:
TIMEWALK IN AVALANCHE PHOTO DIODES
I.Prochazka, K.Hamal, J.Blazej:
MILLIMETER RANGING AND ECHO SIGNAL STRENGTH MONITORING WITH SPAD DETECTORS
G. Kirchner, F. Koidl, I. Prochazka, K. Hamal:
SPAD TIME WALK COMPENSATION AND RETURN ENERGY DEPENDENT RANGING
Souilhac D., Billerey D.:
DESIGN STUDY OF AN INFRARED ACOUSTOOPTIC IMAGING
SPECTRORADIOMETER WITH INFRAREC FIBER PROBE COUPLING
POSTER: Souilhac D., Billerey D.:
DESIGN STUDY OF A FIBER INTERFEROMETRIC SENSOR AND A SAGNAC FIBER OPTIC SENSOR
Session 10: Laser Technology Development (Y. FuMin)
John J. Degnan, John J. Zayhowski:
LR2000 MICROLASER PERFORMANCE: THEORY VS EXPERIMENTS
Howard Donovan:
EMERGING SAFETY STANDARDS OF THE AMERICAN NATIONAL STANDARDS
INSTITUTE AND THE FEDERAL AVIATION ADMINISTRATION OF THE UNITED STATES FOR THE
OUTDOOR USE OF LASERS
B .Greene, Y. Gao, Y. Wang, M. Lederer:
DIODE PUMPED PASSIVELY MODE-LOCKED LASER
OSCILLATOR FOR SATELLITE LASER RANGING (SLR):
Maßmann F., Haase A., Voss, H.:
THE SPEKTRUM AMG D LASER AN INNOVATIVE SYSTEM FOR LASER RANGING
Souilhac, D., Billerey D.:
THE HIGH POWER CO2 LASER AMPLIFIER FOR LONG RANGE RADAR
AND CO2 LASER DIAL EXPERIMENTS
Souilhac D., Billerey D.:
TWO WAVELENGTHS SOLID STATE LASER FOR THE LASER RANGING STATION
Session 11: Timing Devices and Calibration (J. Gaignebeit)
POSTER: P Gibbs, G Appleby:
THE STANFORD SR620 TIMER AS A POSSIBLE SOURCE OF RANGE BIAS
B. Greene:
TIMING SYSTEM PERFORMANCE IN KEYSTONE (KSP) CLASS SATELLITE LASER RANGING (SLR) SYSTEMS
Futaba Katsuo, Toshimichi Otsubo, Jun Amagai and Hideyuki Nojiri:
A NEW CALIBRATION TECHNIQUE FOR THE TELESCOPE REFERENCE POINT AND THE SYSTEM DELAY.
J. Kölbl:
CLOCK DISTRIBUTION IN SLR STATIONS
J. Kölbl:
FREQUENCY SYNTHESIS FOR TIMING CALIBRATION
P. Lemonde, Ph. Laurent, E. Simon, G. Santarelli, A. Clairon, N. Dimarcq, C. Audoin, P. Petit, L.
Bernier, G. Busca, E. Samain, C. Salomon:
ATOMIC CLOCK ENSEMBLE IN SPACE ON BOARD THE SPACE STATION
POSTER: Qing Zhong:
LINEARITY OF HP5370X TIME INTERVAL COUNTERS
Session 12: Automation and Control Systems (H. Kunimori, J. McGarry)
Roger Wood:
IMPROVING ORBIT PREDICTIONS
Brion Conklin:
FULLY AUTOMATED ACQUISITION SYSTEM
Baustert G., Koenig, R.:
LOW FLYER ACQUISITION DATA: SOME STRATEGIES AND PROBLEMS
Wang Tanqiang, Guo Tangyong, Liu Nailing:
THE REAL TIME PROCESSING OF TRACKING DEVIATIONS FOR SLR TRACKING CONTROL SYSTEM
Gong XiangDong, HUANG Li and YANG FuMin:
MULTI SATELLITE ALTERNATE TRACKING AND CONTROL SYSTEM
R.L.Ricklefs,D.Nugent,J.McGarry:
LINUX-BASED ON-SITE DATA ANALYSIS SYSTEMS
Session 13: Automation and Control Systems (J. McGarry, H. Kunimori) continued
POSTER: Cui Dou-xing:
A NUMERICAL METHOD FOR ORDINARY DIFFERENTIAL EQUATIONS
POSTER: Jack Cheek, Anthony Mallama, Nick Ton, Jan McGarry:
SLR2000 PSEUDO-OPERATOR
POSTER: Brion Conklin, Anthony Mann, Mahtab Sadeghighassami, Jan McGarry:
SLR2000 DATA ANALYSIS COMPUTER
POSTER: Randall L. Ricklefs, Jan McGarry:
SLR2000 REMOTE ACCESS TERMINAL
Jan McGarry, Jack Cheek, Anthony Mallama, Nick Ton, Brion Conklin, Anthony Mann, Mahtab
Sadeghighassami, Mike Perry, Randall L. Ricklefs:
SLR2000 AUTOMATED SYSTEM CONTROL SOFTWARE
B Greene, J Cotter, C Moore, A Loeff, I Fras, P Burns, H Kunimori, T Gotoh:
KEYSTONE (KSP) CLASS AUTONOMOUS SATELLITE LASER RANGING (SLR) SYSTEMS
Session 14: Station Performance Evaluation / Quality Control (M. Pearlman)
N. Pearlman:
INTRODUCTION
Van Husson:
SLR GLOBAL PERFORMANCE EVALUATION
Van Husson:
SYSTEM PERFORMANCE MONITORING 2000
I.Prochazka:
DIFFERENTIAL SATELLITE LASER RANGING SLR SYSTEM DIAGNOSTICS TOOL
S.Schillak:
ANALYSIS OF QUALITY OF THE BOROWIEC SATELLITE LASER RANGING SYSTEM
Session 15: Station Performance Evaluation / Quality Control (continued) (M. Pearlman)
G.M. Appleby, W. Hausleitner, A.T. Sinclair:
RAPID QUALITY CHECKS ON LAGEOS DATA FROM THE EUROLAS STATIONS
Toshimichi OTSUBO:
QUICK BIAS REPORT FOR LAGEOS AND AJISAI DATA
Peter Dunn, Mark Torrence:
PERFORMANCE ASSESSMENT OF GEODETIC SLR STATIONS
G.J. Ourensma, R. Noomen:
QUICK-LOOK ANALYSIS AT DELFT UNIVERSITY OF TECHNOLOGY: PAST, PRESENT AND FUTURE.
Vladimir Glotov, Vladimir Mitrikas, Natalie Abylchatova:
THE OPERATIONAL PROCEDURE OF THE SLR DATA QUALITY ANALYSIS IN MCC
R. Eanes, R. Pastor:
ASSESSING THE OF ACCURACY OF SATELLITE LASER RANGING DATA
Session 16: New Applicaitons and Techniques (J. Luck)
Schreiber U., Stedman G.E., Schneider M., Schlüter W.:
CHARACTERISTICS OF A RING LASER FOR GEODESY
POSTER: Olivier Bock:
FIRST AIRCRAFT EXPERIMENTAL RESULTS OBTAINED WITH THE WAALRS
B. Greene, L. Dahl. Y.Gao. C. Cochran:
EYE SAFE LASER DETECTION OF AIRCRAFT: APPLICATIONS IN SATELLITE LASER RANGING (SLR)
Paul W. Schumacher, G. Charmaine Gilbreath, Edward D. Lydick, Mark A. Davis:
PRECISION OF SATLLITE LASER RANGING BASED CALIBRATION OF THE NAVAL SPACE SURVEILLANCE SYSTEM
Toshimichi OTSUBO, Jun AMAGAI, Hiroo KUNIMORI:
MEASURING AJISAI'S SPIN MOTION
POSTER: M.Leonardi:
A POSSIBLE USE OF AJISAI MIRRORS FOR TWO-WAY LASER SYNCHRONISATION.
Samaine Etienne:
THE TIME TRANSFER BY LASER LINK (T2L2) EXPERIMENT
John J. Degnan, Jan McGarry, Phil Dabney, Thomas Zagwodzki:
BREADBOARD INTERPLANETARY LASER TRANSPONDER DESIGN AND TEST OF A
Session 17: Special Topics (P. Shelus) --- invited papers only
Kenneth Nordtvedt:
SCIENTIFIC PROSPECTS FOR INTERPLANETARY (TRANSPONDED) LASER RANGING.
ROBERT F. C. VESSOT:
HIGH ACCURACY TIME KEEPING FROM SPACE
S. Nerem:
GRAVITY MODELS DEVELOPED FROM GEOPHYSICS
W. Gurtner:
SYNERGY OF SLR WITH MICROWAVE TECHNIQUE FOR ORBIT DETERMINATION
R.Buzelis,J.Kosenko,E.Murauskas-EKSPLA K.Lapushka-AI UI :
Q-SWITCHED SBS-COMPRESSED ND.YAG LASER FOR SATELLITE RANGING
Yu.Artyukh,V.Bespal'ko,K.Lapushka,ARybakov,V.Vedin University of Latvia :
Selective Time Interval Counter for SLR Applications
S.Tatevian,O.Bayuk Institut of Astronomy,RAS :
Optimum Planning of LAGEOS Laser Ranging for Geodynamic Programs
The NRL LEO Retro-Array for Satllite Laser Ranging
Workshop Summary/Resolutions/End of Workshop (W. Schlüter)
List of Session Chairmen:
Beutler, Gerhard Astronomical Institute of Bern Office: 41-31-631-85-91
Sidlerstrasse 5, CH-3012 Berne Fax: 41-31-631-38-69
SWITZERLAND E-mail: beutler@aiub.unibe.ch
Bianco, Pippo Agenzia Spaziale Italiana (ASI) Office: 39-835-377209
Centro Geodesia Spaziale Fax: 3-835-339005
PO Box 11, 75100 Matera E-mail: bianco@asi.it
ITALY
Degnan, John Code 920.1, Office: 301-286-8470
NASA/Goddard Space Flight Center Fax: 301-286-0213
Greenbeldt MD, 20771-0001 E-mail: jjd@ltpmail.gsfc.nasa.gov
USA
Dunn, Peter Hughes STX Corporation Office: 01 301 441 4114
7701 Greenbelt Road Fax: 01 301 441 1853
Greenbelt, MD 20770 E-mail: pdunn@ccmail.stx.com
USA
FuMin, Yang Shanghai Observatory Office: 86 21 6438 6191
Chinese Academy of Sciences Fax: 86 21 6438 4618
80 Nandan Road Shanghai 200030 E-mail: yangfm@center.shao.ac.cn
CHINA
Gaignebeit, Jean OCA/CERGA Office:Fax: 33-93405-333
Avenue Copernic E-mail: gaignebet@obs-azur.fr
F-06130 Grasse
FRANCE
Kirchner, Georg Austrian Academy of Sciences Office: 43-316-472231
Observatory Lustbuhel Fax: 43-316-462678
Lustbuhelstrasse 46, A-8042 Graz E-mail: kirchner@flubiw01.tu-graz.ac.at
AUSTRIA
Klosko, Steve Hughes STX Corporation Office: 01 301 441 4124
7701 Greenbelt Road Fax:
Greenbelt, MD 20770 E-mail: sklosko@magus.stx.com
USA
Kunimori, Hiroo Communications Research Office: 81-423-27-7560
Laboratory (CRL) Fax: 81-423-27-6077
4-2-1, Nukui-Kitamachi E-mail: kuni@crl.go.jp
Koganei-Shi, tokyo 184
JAPAN
Luck, John Orroral Observatory Office: 61-6-2357111
Auslig Fax: 61-6-2357103
PO Box 2, Belconnen ACT 2616, E-mail: johnluck@auslig.gov.au
AUSTRALIA
McGarry, Jan Code 920.1, Office: 01-301-286-5020
NASA/Goddard Space Flight Center Fax: 01-301-286-0213
Greenbelt, MD 20771-0001 E-mail: mcgarry@cddis.gsfc.nasa.gov
USA
Noomen, Ron Delft University of Technology Office: 31 15 278 5377
Faculty Aerospace Engineering Fax: 31 15 278 3444
Kluyverweg 1 2629 HS Delft E-mail: ron.noomen@lr.tudelft.nl
THE NETHERLANDS
Pearlman, Michael Harvard-Smithsonian Office: 617-495-7581
Center for Astrophysics Fax: 617-495-7105
60 Garden Street, E-mail: pearlman@cfa.harvard.edu
Cambridge, MA 02138
USA
Prochazka, Ivan Czech Technical University Office:
Brehova 7 Fax: 42-2-85762252
115 19 Prague 1 E-mail: prochazk@mbox.cesnet.cz
CZECH REPUBLIC
Schreiber, Ulrich Technische Universität München Office: 49-9941 603-113
Fundamentalstation Wettzell Fax: 49-9941 603-222
Sackenrieder Strasse 25 E-mail: schreiber@fs.wettzell.de
D-93444 Kötzting
GERMANY
Shelus, Peter University of Texas at Austin Office: 512-471-3339
Department of Astronomy Fax: 512-471-6016
McDonald Observatory E-mail: pjs@astro.as.utexas.edu
Austin, TX 78712-1083
USA
Vassiliev, Russian Institute of Space Device Office: 095 273 2911
Vladimir Engineering Fax:
53 Aviamotornaya Street E-mail: natali@ricimi.msk.su
Moscow 111024
RUSSIA
Wilson, Peter "The Minstrels" Office: 44 1273 515446
Piddinghoe Mead Fax:
Newhaven BN9 9R/1 E-mail:10642athome@compaserve.com
UNITED KINGDOM
You, Zhao Changchan Satellite Observatory Office: 86 431 451 1337
Chinese Academy of Sciences Fax: 86 431 451 3550
Jing Yue Tan E-mail: zhxh@mail.jlu.eclu.cn
Chang Chum 130117
CHINA