SAO-1

SLR System Configuration Definition


                     SYSTEM CONFIGURATION DEFINITION
                     ===============================


SYSTEM NAME: SAO-1
PAD ID NO.: 7939
ADDRESS: MATERA - C.da Terlecchia
CONTACT: D. DEL ROSSO
PHONE: 0039-835-377203
FAX: 0039-835-334951
E-MAIL:



                   =======================================
                   SECTION 1.0 - SYSTEM RANGING CAPABILITY
                   =======================================



SECTION 1.1 SYSTEM RANGING FEATURES
===================================


FEATURES           /CURRENT RANGING /  RANGING        / DATE   /    FUTURE    /
                   /CAPABILITY      /  PHOTOELECTRON  /        /    RANGING   /
                                                               /    CAPABILITY/
===============================================================================
Calibration:
Internal           /  NO            /  NO             /        /              /
External           /  YES           /  1-100          /01-06-94/     NA       /


* Internal Calibration: Refers to the capability for ranging to a
  target within the system.

* External Calibration: Refers to the capability for ranging to
  terrestrial targets.


SECTION 1.2 ADVANCED SYSTEM RANGING FEATURES
============================================


TARGET             /CURRENT RANGING /  RANGING        / DATE   /    FUTURE    /
                   /CAPABILITY      /  PHOTOELECTRON  /        /    RANGING   /
                                                               /    CAPABILITY/
===============================================================================
Two-Color Capability/    NO         /                 /        /              /
Manual Track        /               /                 /        /       NA     /

Tracking:
Semi-Automated      /    YES        /      1-100      /01-06-94/       NA     /
Fully Automated     /               /                 /        /              /


Section 1.3  System Ranging Targets
===================================


TARGET             /CURRENT RANGING /  RANGING        / DATE   /   FUTURE    /
                   /CAPABILITY      /  PHOTOELECTON   /        /   RANGING   /
                                                               /   CAPABILITY/
==============================================================================

STARLETTE          /    YES         /     10-50       /01-06-94/      NA
STELLA             /    YES         /     10-50       /01-06-94/      NA
ERS-1              /    YES         /     10-50       /01-06-94/      NA
AJISAI             /    YES         /     10-50       /01-06-94/      NA
TOPEX              /    YES         /     10-50       /01-06-94/      NA
LAGEOS 1           /    YES         /      1-2        /01-06-94/      NA
LAGEOS 2           /    YES         /      1-5        /01-06-94/      NA
ETALON 1           /    NO          /      NO         /        /      NA 
ETALON 2           /    NO          /      NO         /        /      NA
GLONASS 3          /    NO          /      NO         /        /      NA
GPS-3,5            /    NO          /      NO         /        /      NA
Geosynchronous     /    NO          /      NO         /        /      NA
Satellite          /    NO          /      NO         /        /      NA
Moon               /    NO          /      NO         /        /      NA



           SECTION 2.0 - HARDWARE CONFIGURATION / CAPABILITY
           =================================================



SECTION 2.1 LASER CONFIGURATION CATEGORY
========================================

An example of the response requested in this section is as follows:


LASER                     /  SPECIFICATIONS  /   DATE    /   FUTURE   /APPROX./
                          /                  /           /   CHANGES  / DATE  /
===============================================================================
Energy                    /  100mJ           /  4-29-94  /     N/A    / N/A   /
Energy                    /  100mJ           /  "        /    50mJ    /6-15-96/

Case 1 describes a system with 100mJ capability with no current plans to
upgrade.

Case 2 describes a system with 100mJ capability with plans to upgrade the
system to include 50mJ capbility.



LASER                     /  SPECIFICATIONS  /   DATE    /   FUTURE   / APPROX./
                          /                  /           /   CHANGES  / DATE   /
================================================================================

Type of Laser Medium      /     RUBY         / 01-06-94  /    NA      /        /
Energy / Pulse (mJ)       /     500        mJ/ 01-06-94  /    NA      /        /
Pulsewidth (ps)           /     3000       ps/ 01-06-94  /    NA      /        /
Beam Size                 /     12         cm/ 01-06-94  /    NA      /        /
Beam Divergence(Half Angle)     1      arcmin/ 01-06-94  /            /        /
Beam Divergence Control   /     yes          / 01-06-94  /    NA      /        /
Amplitude Stability       /     +/-10       %/ 01-06-94  /            /        /
Timing Stability          /     +/-5       ns/ 01-06-94  /            /        /
Transverse Mode Structure /                cm/ 01-06-94  /            /        /
Ranging Wavelength(s)     /     694.3      nm/ 01-06-94  /    NA      /        /
Repetition Rate           /   0.50-0.25    Hz/ 01-06-94  /            /        /
Other                     /                  / 01-06-94  /            /        /


SECTION 2.2 MOUNT CONFIGURATION CATAGORY
========================================


SECTION 2.2.1
=============


TELESCOPE/ MOUNT          /  SPECIFICATIONS  /   DATE    /   FUTURE   / APPROX./
                          /                  /           /   CHANGES  / DATE   /
================================================================================

Telescope Type            /   CASSEGRAIN     /           /            /        /
Biaxial Telescope         /      YES         /           /            /        /
Monoaxial Telescope       /      NO          /           /            /        /
Mount Type                /    AZI-ELE       /           /            /        /
Field of View             /      YES         /           /            /        /
Focal Length              /       2       mt /           /            /        /
Magnification             /                  /           /            /        /


Pointing Accuracy         /    0.010 degree  /           /            /        /
After STARCAL             /    0.010 degree  /           /            /        /


Satellite:
Common T/R Optical Path   /        NO        /           /            /        /
Separate T/R Optical Path /        YES       /           /            /        /


Calibration:
Common T/R Optical Path   /        NO        /           /            /        /
Separate T/R Optical Path /        YES       /           /            /        /
Orthogonality of Axes     /                  /           /            /        /


Wobble on Each Axis:
Elevation                 /  0.005  degree   /           /            /        /
Azimuth                   /  0.005  degree   /           /            /        /


Elevation                 /   0-90 degree    /           /            /        /
 - Range
 - Encoder Resolution     /      NO          /           /            /        /
 - Position Jitter        /                  /           /            /        /
 - Maximum EL Velocity    /  0.5 degree/sec  /           /            /        /
 - Maximum EL Acceleration/0.2 degree/sec*sec/           /            /        /




Azimuth                   /                  /           /            /        /
 - Range                  /    540 degree    /           /            /        /
 - Encoder Resolution     /       NO         /           /            /        /
 - Position Jitter        /                  /           /            /        /
 - Maximum Az Velocity    /  0.5 degree/sec  /           /            /        /
 - Maximum Az Acceleration/0.2 degree/sec*sec/           /            /        /


PRIMARY MIRROR            /     CER-VIT      /           /            /        /
Type                      /PARABOLA  1/8LAMBA/           /            /        /
Clear Aperture (CA)       / 20 INCHES diam.  /            /        /
Focal Length              /      F/4         /           /            /        /
Optical Coating           /ALUMINITE and SiO /           /            /        /


SECONDARY MIRROR          /     CER-VIT      /           /            /        /
Type                      /      FLAT        /           /            /        /
Clear Aperture (CA)       /    5.75 INCHES   /           /            /        /
Focal Length              /       NO         /           /            /        /
Optical Coating           /ALUMINITE and SiO /           /            /        /


TERTIARY MIRROR           /        NO        /           /            /        /
Type                      /        NO        /           /            /        /
Clear Aperture            /        NO        /           /            /        /


COUDE MIRRORS             /        NO        /           /            /        /
Type                      /        NO        /           /            /        /
Clear Aperture            /        NO        /           /            /        /
Optical Coating           /        NO        /           /            /        /



SECTION 2.3 OPTICAL CONFIGURATION CATAGORY
==========================================


TRANSMIT/ RECEIVE OPTICS  /  SPECIFICATIONS  /   DATE    /   FUTURE   / APPROX./
                          /                  /           /   CHANGES  / DATE   /
================================================================================

T/R Coupling Scheme:
 - Type                   /        NO        /           /            /        /
 - Coupling Efficiency    /        NO        /           /            /        /
Spatial Filter:           /        NO        /           /            /        /
 - Field of View          /        NO        /           /            /        /
Band-Pass Filter:         /        NO        /           /            /        /
 - Type                   /        NO        /           /            /        /


 - Bandwidth              /                  /           /            /        /
 - Blocking Bandwidth     /                  /           /            /        /
 -Transmission Efficiency /                  /           /            /        /
Receive Signal Amplitude
Control Mechanism         /                  /           /            /        /



SECTION 2.4 TRANSMIT/ RECEIVE (T/R) ELECTRONICS CONFIGURATION SECTION
=====================================================================


T/R ELECTRONICS            / SPECIFICATIONS  /   DATE    /   FUTURE   / APPROX./
                           /                 /           /   CHANGES  / DATE   /
================================================================================

Transmit Detector:
 - Quantum Efficiency      /                 /           /            /        /
 - Gain                    /                 /           /            /        /
 - Bandwidth               /                 /           /            /        /
 - Jitter (single pe)      /                 /           /            /        /

 - Impulse Response
 - Pulse Width             /                 /           /            /        /
 - Rise Time               /                 /           /            /        /
 - Dynamic Range           /                 /           /            /        /
Receive Detector(s)        /                 /           /            /        /
 - Quantum Efficiency      /       4%        /           /            /        /
 - Gain                    /    3.5 *10(7)   /           /            /        /
 - Bandwidth               /    WIDTH BAND   /           /            /        /
 - Jitter (single pe)      /                 /           /            /        /
 - Impulse Response Pulse Width/Rise Time
 - Dynamic Range           /                 /           /            /        /
Amplifier                  /                 /           /            /        /
 - Type:                   /AV-5 AVANTEK trans.ampl.     /            /        /
 - Bandwidth:              /    300 MHz      /           /            /        /
 - Jitter:                 /                 /           /            /        /
 - Dynamic Range           /+30dBm(1dB GAIN COMPR.)      /            /        /
TARGET IMAGING Capability  /       NO        /           /            /        /
 - Type of camera          /       NO        /           /            /        /
 - Gain                    /       NO        /           /            /        /
 - Sensitivity             /       NO        /           /            /        /
Signal Processing Technique/                 /           /            /        /
 - Type of Device          /                 /           /            /        /

 - CFD:
 - Length of External


   Delay Cable
 - Bandwidth               /   +/- 15 meter  /           /            /        /
 - Dynamic Range(pe)       /    100 MHz      /           /            /        /
 - Jitter                  /                 /           /            /        /

EVENT TIMER or TIME OF FLIGHT MEASUREMENT?
 - Clock Frequency         /      10 MHz     /           /            /        /
 - Number of Channels      /                 /           /            /        /
 - Number of Verniers      /                 /           /            /        /
 - Minimum Dead Time       /                 /           /            /        /
 - Time Resolution         /     100 psec    /           /            /        /
 - Aggregate Jitter        /     200 psec    /           /            /        /
Amplitude Measurement      /                 /           /            /        /
 - Type of Device          /                 /           /            /        /
 - Bandwidth               /WAVEFRONT DIGIT. /           /            /        /
 - Accuracy                /     400 MHz     /           /            /        /
 - Part of Data Stream?    /                 /           /            /        /
System Delay Calibration   /                 /           /            /        /

Internal Calibration Capability
Location of Target(s)      /        NO       /           /            /        /
Range of Target(s)         /                 /           /            /        /
External Calibration Capability
Location of Target(s)      /AZ=280.615 ; EL=0.712        /            /        /
Range(s) of Target(s)      /   1172.193 mt   /           /            /        /


SECTION 2.6 TIMING CONFIGURATION SECTION
========================================


TIMING                    /  SPECIFICATIONS  /   DATE    /   FUTURE   / APPROX./
                          /                  /           /   CHANGES  / DATE   /
================================================================================

Frequency Standard(s) used/CESIUM OSCILLATOR /           /            /        /
Frequencies               /   5-10 MHz       /           /            /        /
Short-Term Stability      /                  /           /            /        /
Long-Term Stability       /                  /           /            /        /
Epoch Time Measurement:   /                  /           /            /        /
 - Type of Device         /GPS-TIME RECEIVER /           /            /        /
 - Resolution             /    100 nsec      /           /            /        /
 - Timing Closure         /     < 1usec      /           /            /        /



SECTION 2.7 METEOROLOGICAL SENSORS CONFIGURATION CATAGORY
=========================================================

METEOROLOGICAL SENSORS    /  SPECIFICATIONS  /   DATE    /   FUTURE   / APPROX./
                          /                  /           /   CHANGES  / DATE   /
================================================================================
Thermometer               /                  /           /            /        /
Type                      /    PT 100        /           /            /        /
Accuracy (calibrated)     /0.3 Celsius degree/           /            /        /
Resolution                /0.1 Celsius degree/           /            /        /
Range                     /-20 - 60 C. degree/           /            /        /
Barometric Pressure System/                  /           /            /        /
Type                      /                  /           /            /        /
Accuracy (calibrated)     /    0.2 mBar      /           /            /        /
Range                     / 800 - 1100 mBar  /           /            /        /
Relative Humidity System  /                  /           /            /        /
Type                      /                  /           /            /        /
System Accuracy           /      5%          /           /            /        /
Resolution                /      1%          /           /            /        /
System Range              /    0 - 100 %     /           /            /        /
Wind Measurement System   /                  /           /            /        /
Type                      /                  /           /            /        /
Type:                     /                  /           /            /        /
Sensor                    /                  /           /            /        /
Range                     /                  /           /            /        /
Accuracy                  /                  /           /            /        /
Resolution                /                  /           /            /        /
Threshold                 /                  /           /            /        /




              SECTION 3.0 SOFTWARE SYSTEM CONFIGURATION/ CAPABILITY
              =====================================================


           SECTION 4.0 SURVEY MEASUREMENT CONFIGURATION / CAPABILITY
           =========================================================



SECTION 4.1 SURVEY MEASUREMENTS
===============================



SURVEYING INSTRUMENT     /    ACCURACY:PRECISION/   DATE  / FUTURE / APPROX.
                                                          / CHANGES/ DATE
============================================================================
                         /                      /         /        /
                         /                      /         /        /
                         /                      /         /        /






SECTION 4.2 SURVEY ANALYSIS
===========================


SURVEY ANALYSIS TECHNIQUE
================================================================================
* (PLEASE GIVE DESCRIPTION OF THE TECHNIQUE USED)
*
*


SECTION 4.3 SURVEY CALIBRATION TARGET 
=====================================


TARGET          /      SPECIFICATIONS       /   DATE    /   FUTURE   / APPROX.
                /                           /           /   CHANGES  / DATE   
================================================================================
       
TARGET A        /                           /           /            / 
 TYPE           /                           /           /            /
 RANGE ACCURACY /                           /           /            /
 AZIMUTH        /                           /           /            /
 ELEVATION      /                           /           /            /
 RANGE PRECISION/                           /           /            /
 RANGE          /                           /           /            /
 SHORT TERM
 STABILITY      /                           /           /            /
 LONG TERM
 STABILITY      /                           /           /            /

TARGET B        /                           /           /            / 
 TYPE           /                           /           /            /
 RANGE ACCURACY /                           /           /            /
 AZIMUTH        /                           /           /            /
 ELEVATION      /                           /           /            /
 RANGE PRECISION/                           /           /            /
 RANGE          /                           /           /            /
 SHORT TERM
 STABILITY      /                           /           /            /
 LONG TERM
 STABILITY      /                           /           /            /

TARGET C        /                           /           /            / 
 TYPE           /                           /           /            /
 RANGE ACCURACY /                           /           /            /
 AZIMUTH        /                           /           /            /
 ELEVATION      /                           /           /            /
 RANGE PRECISION/                           /           /            /
 RANGE          /                           /           /            /
 SHORT TERM
 STABILITY      /                           /           /            /
 LONG TERM
 STABILITY      /                           /           /            /



SECTION 4.4 ECCENTRICITY DETERMINATION
======================================


                        /     NORTH        /       EAST        /         UP
===============================================================================
Mean Value              /                  /                   /
Accuracy                /                  /                   /


Precision               /                  /                   /
Short Term Stability    /                  /                   /
Long Term Stability     /                  /                   /





              SECTION 5.0 CALIBRATION TECHNIQUE / CAPABILITY 
              ==============================================



SECTION 5.1 CALIBRATION DEVICES AND FREQUENCY
=============================================



===============================================================================
                           //                         FREQUENCY
===============================================================================
DEVICE/ FEATURE        /FREQUENCY OF CALIBRATION / DATE  /FUTURE CHANGE/DATE
===============================================================================
Event Timer            /                         /       /             /
Time of Flight Devices /Monthly and when data    /       /             /
                        shows an anomoly
Discriminator          /When data shows an anomoly/      /             /
Pressure Sensor        /      Once a year        /       /             /
Temperature Sensor     /      Once a year        /       /             /
Timing System          /         Daily           /       /             /
System Delay           /      Every pass         /       /             /




                SECTION 6.0 SYSTEM TIMING CLOSURE CONFIGURATION
                ===============================================



SECTION 6.1  TIMING CLOSURE
===========================

TIMING FEATURE         /   SPECIFICATIONS    /   DATE    /   FUTURE   / APPROX.
                       /                     /           /   CHANGES  / DATE   
===============================================================================

Reference Time:        /     Cesium Beam     /           /            /
Accuracy of Timing:    /     < 1.00E-12      /           /            /
Modeling of Time Drift:/       Daily         /           /            /



          SECTION 7.0 SYSTEM DATA ANALYSIS CONFIGURATION / CAPABILITY
          ===========================================================


SECTION 7.1 DATA ANALYSIS
=========================

TIMING FEATURE             / STATUS       /   DATE    /   FUTURE   / APPROX.
                           /              /           /   CHANGES  / DATE   
=============================================================================

Transmit Signal Amplitudes:/     no       /           /            /
Receive Signal Amplitudes: /     no       /           /            /
Timing                     /     no       /           /            /
Instrument Non-Linearities /     no       /           /            / 
Geometric Corrections      /     no       /           /            / 
Atmosphere                 /     no       /           /            /


SECTION 7.2  System Delay Computation:
======================================


SYSTEM DELAY COMPUTATION FREQUENCY     /  ( YES : NO )  /ADDITIONAL INFORMATION
===============================================================================

Shot by Shot:                          /       no       /

Burst or Short Time Aggregate:         /       no       /

Aggregate:                             /                /





SECTION 7.3 DATA ANALYSIS TECHNIQUES / CAPABILITIES
===================================================            
TECHNIQUE              /    STATUS           /   DATE    /   FUTURE   / APPROX.
                       /                     /           /   CHANGES  / DATE   
===============================================================================
Normal Point Computation:  yes: on site computer analysis                

Fitting Routine  (Algorithms):  yes: IRV is used to provide an appropriate 
                                     range for calculating time of flight

Noise Filtering and Editing Procedures:  yes: 3 sigma

Data Quality Control Procedures:  yes: after filtering & fitting rms is
                                      flag checked

System Computational Capability:  yes:  on site computer calculates rms
                                        and system delay


                   SECTION 8.0  SYSTEM ATMOSPHERIC TECHNIQUES 
                   ==========================================



SECTION 8.1 ATMOSPHERIC MODEL
=============================

8.1  Atmospheric Model Used:  no


* ( PLEASE DESCRIBE THE MODEL IN AS MUCH DETAIL AS POSSIBLE ) 




               SECTION 9.0   SYSTEM PERFORMANCE CHARACTERISTICS
               ================================================

SECTION 9.1 RANGING SYSTEM ERRORS
=================================

RANGING SYSTEM ERRORS       /  ACCURACY  /  1 SIGMA   / PEAK - PEAK /   DATE   /
================================================================================


Temporal Stability          /  1.5 cm    /   1.8 cm   /    6.4 cm   /          /
Wavefront Distortion        /    n/a     /   1.0 cm   /    2.0 cm   /          /
Signal Strength Dependence  /    n/a     /    n/a     /     n/a     /          /
Calibration Path            /1.5 cm nanofast/ 3.0 cm  /    6.2 cm   /          /
Mount Eccentricities        /            /            /             /          /
Meteorological Measurement  /            /            /             /          /
  Temperature               /  0.2 deg   /     n/a    /     n/a     /          /
  Pressure                  /  0.2 deg   /     n/a    /     n/a     /          /
Event Timer                 /    n/a     /     n/a    /     n/a     /          /
Time of Flight Measurement  /  100 ps    /            /             /          /
Epoch Time Measurement      /500 ps (gps)/ +/- 200 ps / +/- 200 ps  /          /
Data Analysis               /            /            /             /          /
Normal Point Computation    /            /            /             /          /
System Delay Computation    /1.5 cm nanofast/  1.5 cm /             /          /
--------------------------------------------------------------------------------