<table>
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</colgroup>
<tbody>
<tr class="odd">
<td></td>
<td colspan="41">OMB Approval No. 2700-0042</td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="22">amendment of solicitation/</td>
<td colspan="13">1. CONTRACT ID CODE</td>
<td colspan="6">PAGE OF PAGES</td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="22">modification of contract</td>
<td colspan="13">NAS 9-98100</td>
<td colspan="2">1</td>
<td colspan="4">3</td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="12">2. AMENDMENT/MODIFICATION NO.</td>
<td colspan="8">3. EFFECTIVE DATE</td>
<td colspan="11">4. REQUISITION/PURCHASE REQ. NO.</td>
<td colspan="10">5. PROJECT NO. <em>(If applicable)</em></td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="12">Modification 97</td>
<td colspan="8">See Block 16C Below</td>
<td colspan="11">N/A</td>
<td colspan="10">N/A</td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="9">6. ISSUED BY</td>
<td colspan="3">CODE</td>
<td colspan="8"></td>
<td colspan="12">7. ADMINISTERED BY <em>(If other than Item 6)</em></td>
<td colspan="3">CODE</td>
<td colspan="6"></td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="20"><p>NASA LYNDON B. JOHNSON SPACE CENTER</p>
<p>Attn: Lawrence A. Kenyon, PCO, Mail Code: BN</p>
<p>2101 NASA Road One</p>
<p>Houston, TX 77058</p></td>
<td colspan="21"></td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="41">8. NAME AND ADDRESS OF CONTRACTOR <em>(No., street,
county, State, and ZIP Code)</em></td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="41"><p>LOCKHEED-MARTIN SPACE OPERATIONS COMPANY</p>
<p>Attn: David F. Bruce, Manager of Contracts</p>
<p>501 Gemini Avenue</p>
<p>Houston, TX 77058</p></td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="6">CODE</td>
<td colspan="14"></td>
<td colspan="8">FACILITY CODE</td>
<td colspan="13"></td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="4">(x)</td>
<td colspan="16">9A. AMENDMENT OF SOLICITATION NO.</td>
<td colspan="21">9B. DATED <em>(SEE ITEM 11)</em></td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="4"></td>
<td colspan="16"></td>
<td colspan="21"></td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="4"></td>
<td colspan="16">10A. MODIFICATION OF CONTRACT/ORDER NO.</td>
<td colspan="21">10B. DATED <em>(SEE ITEM 13)</em></td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="4">X</td>
<td colspan="16">NAS 9-98100</td>
<td colspan="21">10/01/98</td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="41">11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF
SOLICITATIONS</td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="41"></td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td colspan="2"></td>
<td></td>
<td colspan="25">The above numbered solicitation is amended as set forth
in Item 14. The hour and date specified for receipt of Offers</td>
<td colspan="3"></td>
<td colspan="5">is extended,</td>
<td></td>
<td colspan="7">is not extended.</td>
</tr>
<tr class="even">
<td></td>
<td colspan="41">Offers must acknowledge receipt of this amendment prior
to the hour and date specified in the solicitation or as amended, by one
of the following methods:</td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="13"></td>
<td colspan="4"></td>
<td colspan="22"></td>
<td colspan="4"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="13">(a) By completing Items 8 and 15, and returning</td>
<td colspan="2"></td>
<td colspan="23">copies of the amendment; (b) By acknowledging receipt
of this amendment on each copy of the offor</td>
<td colspan="5"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="41">submitted; or (c) By separate letter or telegram which
includes a reference to the solicitation and amendment numbers. FAILURE
OF YOUR ACKNOWLEDGEMENT TO</td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="41">BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF
OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION
OF</td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="41">YOUR OFFER. If by virtue of this amendment you desire
to change an offer already submitted, such change may be made by
telegram or letter, provided each telegram</td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="41">or letter makes reference to the solicitation and this
amendment, and is received prior to the opening hour and date
specified.</td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="41">12. ACCOUNTING AND APPROPRIATION DATA <em>(If
required)</em></td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="41"></td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="41">13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF
CONTRACTS/ORDERS,<br />
IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.(x)</td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="5">(x)</td>
<td colspan="36">A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify
authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE</td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="5"></td>
<td colspan="12">CONTRACT ORDER NO. IN ITEM 10A.</td>
<td colspan="24"></td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="5"></td>
<td colspan="36">B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO
REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying
office,</td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="5"></td>
<td colspan="36">appropriation date, etc.) SET FORTH IN ITEM 14,
PURSUANT TO THE AUTHORITY OF FAR 43.103(b).</td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="5"></td>
<td colspan="36">C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT
TO AUTHORITY OF:</td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="5">X</td>
<td colspan="36">FAR 52.243-2 Alt. II (Apr 84) Changes &amp; FAR
52.232-22, LOF, H.5, Special Provision for Contract Changes</td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="5"></td>
<td colspan="36">d. OTHER <em>(Specify type of modification and
authority)</em></td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="5"></td>
<td colspan="36"></td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="8"></td>
<td colspan="3"></td>
<td colspan="2"></td>
<td colspan="4"><strong>X</strong></td>
<td colspan="9"></td>
<td colspan="3"></td>
<td colspan="12"></td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="7"><strong>E. IMPORTANT:</strong> Contractor</td>
<td colspan="3"></td>
<td colspan="3">is not,</td>
<td colspan="3">x</td>
<td colspan="7">Is required to sign this document and return</td>
<td colspan="2">3</td>
<td colspan="15">copies to the issuing office.</td>
<td colspan="3"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="41"></td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="41">14. description of amendment/modification
<em>(Organized by UCF section headings, including solicitation/contract
subject matter where feasible.)</em></td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="41">Pursuant to clause H.5, Special Provision for Contract
Changes, this action is less than $1.0 million and therefore does not
give rise to an equitable adjustment to contract NAS 9-98100 in cost or
fee. The estimated value of this work is $950,000. This modification
represents full and equitable adjustment for the subject work. The
purpose of this modification is to recognize the delay in implementing
the NCP NASA Initiative March 1999 until September 30, 2000, in CSLA
B.2.A, Tracking, Data Acquisitions and Command Data Services. Changes to
the Contract Service Level Agreement is bolded and underlined.</td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="41">Except as provided herein, all terms and conditions of
the document referenced in Item 9A or 10A, as heretofore changed,
remains unchanged and in full force and effect.</td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="20">15A. NAME AND TITLE OF SIGNER <em>(Type or
print)</em></td>
<td colspan="21">16A. NAME AND TITLE OF CONTRACTING OFFICER <em>(Type or
print)</em></td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="20">Kathy J. Collins, Senior Contract Administrator</td>
<td colspan="21">Gail L. Boyes, Contracting Officer</td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="18">15B. CONTRACTOR/OFFEROR</td>
<td colspan="2">15C. DATE SIGNED</td>
<td colspan="14">16B. UNITED STATES OF AMERICA</td>
<td colspan="7">16C. DATE SIGNED</td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="3"></td>
<td colspan="11"><h1 id="original-signed-bykathy-j.-collins">Original
signed by:Kathy J. Collins</h1></td>
<td colspan="4"></td>
<td colspan="2">6/30/00</td>
<td>BY</td>
<td colspan="12"><h2 id="original-signed-by-gail-l.-boyes">Original
signed by: Gail L. Boyes</h2></td>
<td></td>
<td colspan="8">6/30/00</td>
<td></td>
</tr>
<tr class="even">
<td></td>
<td colspan="18"><em>(Signature of person authorized to sign)</em></td>
<td colspan="2"></td>
<td colspan="14"><em>(Signature of Contracting Officer)</em></td>
<td colspan="7"></td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="19">NSN 7540-01-152-8070<br />
PREVIOUS EDITION UNUSABLE</td>
<td colspan="5">30-105<br />
JSC MS Word (Aug 95)</td>
<td colspan="17"><strong>STANDARD FORM 30</strong> (Rev. 10-83)<br />
Prescribed by GSA<br />
FAR (48 CFR) 53.243</td>
<td colspan="2"></td>
</tr>
</tbody>
</table>

  ------------------------ ------- ---------------------- --------------- --------------------------- --
  Table B.2.A-4.1.0 CSOC                                                                              
  IOA Interdependencies                                                                               

  Development Requirement  DP1     NASA Development       Technical\      NASA Initiative Complete    
                                   Initiative             Performance                                 

  Consolidate the          N/A     N/A                    N/A             N/A                         
  logistics management at                                                                             
  the CLF warehouse                                                                                   
  facility to a lower cost                                                                            
  region of Baltimore's                                                                               
  industrial area.                                                                                    
  Implement a full                                                                                    
  bar-coding capability.                                                                              

  Consolidate WSGT and     10/99   Year 2000              Update systems  3/99                        
  STGT TOCC's into a                                      to support                                  
  single, unified CTOCC                                   YR2000 dates                                
  and remote control of                                                                               
  the WSGT from the STGT.                                                                             
  Implement the RTODS COTS                                                                            
  product for TDRSS OD/OP                                                                             
  generation. Implement                                                                               
  COTS finite-state                                                                                   
  modeling system for                                                                                 
  automation of TDRSS                                                                                 
  flight and ground                                                                                   

  Consolidate WSGT and     10/99   WSC modifications for  Ground terminal FY99-02                     
  STGT TOCC's into a               TDRS H/I/J             modifications                               
  single, unified CTOCC            (Consolidate Space     by TDRS H/I/J                               
  and remote control of            Network)               contractor                                  
  the WSGT from the STGT.                                 required to                                 
  Implement the RTODS COTS                                support full                                
  product for TDRSS OD/OP                                 SMA, Ka SA, and                             
  generation. Implement                                   TT&C                                        
  COTS finite-state                                       functionality                               
  modeling system for                                                                                 
  automation of TDRSS                                                                                 
  flight and ground                                                                                   

  Develop an Antenna       10/99   N/A                    N/A             N/A                         
  Simulator and Modeling                                                                              
  System (ASMS) to                                                                                    
  eliminate engineering                                                                               
  and testing hazards and                                                                             
  lost track time.                                                                                    

  For AMMOS Ground Ops,    10/99   DSN Advanced           Provides        FY99                        
  consolidate DSOT, NOCC,          Communications         standardized                                
  CCT and Connection               Services(Consolidate & data delivery                               
  Controllers from SPC-10          Upgrade the DSN)       and access                                  
  at a single location to                                 using TCP/IP                                
  conduct data capture and                                and Internet                                
  distribution activities                                                                             
  for the Deep Space                                                                                  
  Network.                                                                                            

  For AMMOS Ground Ops,    10/99   DSN Network Control    Allows          **[9/30/00]{.underline}**   
  consolidate DSOT, NOCC,          Project(Consolidate &  reduction in                                
  CCT and Connection               Upgrade the DSN)       DSN operations                              
  Controllers from SPC-10                                 budget and                                  
  at a single location to                                 provides remote                             
  conduct data capture and                                M&C; will                                   
  distribution activities                                 support up to                               
  for the Deep Space                                      50% increase in                             
  Network.                                                tracking hours                              

  For AMMOS Ground Ops,    10/99   Year 2000              Update systems  3/99                        
  consolidate DSOT, NOCC,                                 to support                                  
  CCT and Connection                                      YR2000 dates                                
  Controllers from SPC-10                                                                             
  at a single location to                                                                             
  conduct data capture and                                                                            
  distribution activities                                                                             
  for the Deep Space                                                                                  
  Network.                                                                                            

  Implement finite-state   10/99   GN AWOTS               Improves RMA    FY98                        
  modeling system to               Upgrade(Consol-idate   and performance                             
  further automate AWOTS           Monitor & Control)     of the WFF                                  
  operations and WFF                                      AWOTS node                                  
  Control Center/DRC                                      through                                     
  operations.                                             automated                                   
                                                          control and                                 
                                                          monitoring                                  
                                                          upgrades                                    

  Implement finite-state   10/99   Year 2000              Update systems  3/99                        
  modeling system to                                      to support                                  
  further automate AWOTS                                  YR2000 dates                                
  operations and WFF                                                                                  
  Control Center/DRC                                                                                  
  operations.                                                                                         
  ------------------------ ------- ---------------------- --------------- --------------------------- --

  ------------------------ ------- --------------------- --------------- ------------ --
  Table B.2.A-4.1.0                                                                   
  (Cont'd)                                                                            

  Development Requirement  DP1     NASA Development      Technical\      NASA         
                                   Initiative            Performance     Initiative   
                                                                         Complete     

  Implement the            N/A     N/A                   N/A             N/A          
  consolidation of the DSN                                                            
  Logistics Facility and                                                              
  the Goldstone Logistics                                                             
  Depot into a single DSN                                                             
  Logistics Facility                                                                  
  located at Barstow.                                                                 

  Provide a central        1/99    N/A                   N/A             N/A          
  facility that directly                                                              
  supports the central                                                                
  CSOC Engineering                                                                    
  organization. It                                                                    
  provides the                                                                        
  computerized environment                                                            
  to perform SVEL                                                                     
  engineering, IOA Systems                                                            
  Engineering, Operations                                                             
  Integration and Test,                                                               
  Technology Assessment.                                                              

  Replace MILA/PDL         10/99   GN MILA/BDA           Automates       FY98         
  hydraulic drive antenna          Re-engineering (MBR)  ground                       
  with new electric drive          Project(Consolidate   equipment                    
  systems. Implement               Ground Network,       operations and               
  remote control UPS               Consolidate Monitor & replaces custom              
  capability.Upgrade               Control)              components with              
  antenna site to allow                                  COTS; enables                
  remote network                                         remote                       
  management.                                            operations and               
                                                         supports                     
                                                         staffing                     
                                                         reductions                   

  Replace MILA/PDL         10/99   Year 2000             Update systems  3/99         
  hydraulic drive antenna                                to support                   
  with new electric drive                                YR2000 dates                 
  systems. Implement                                                                  
  remote control UPS                                                                  
  capability.Upgrade                                                                  
  antenna site to allow                                                               
  remote network                                                                      
  management.                                                                         
  ------------------------ ------- --------------------- --------------- ------------ --