<table style="width:100%;">
<colgroup>
<col style="width: 1%" />
<col style="width: 0%" />
<col style="width: 2%" />
<col style="width: 1%" />
<col style="width: 0%" />
<col style="width: 0%" />
<col style="width: 2%" />
<col style="width: 10%" />
<col style="width: 0%" />
<col style="width: 0%" />
<col style="width: 0%" />
<col style="width: 1%" />
<col style="width: 4%" />
<col style="width: 0%" />
<col style="width: 1%" />
<col style="width: 0%" />
<col style="width: 0%" />
<col style="width: 0%" />
<col style="width: 1%" />
<col style="width: 0%" />
<col style="width: 15%" />
<col style="width: 0%" />
<col style="width: 4%" />
<col style="width: 1%" />
<col style="width: 2%" />
<col style="width: 7%" />
<col style="width: 1%" />
<col style="width: 3%" />
<col style="width: 2%" />
<col style="width: 0%" />
<col style="width: 2%" />
<col style="width: 0%" />
<col style="width: 0%" />
<col style="width: 2%" />
<col style="width: 1%" />
<col style="width: 2%" />
<col style="width: 0%" />
<col style="width: 2%" />
<col style="width: 4%" />
<col style="width: 5%" />
<col style="width: 0%" />
<col style="width: 0%" />
<col style="width: 1%" />
<col style="width: 1%" />
<col style="width: 0%" />
<col style="width: 1%" />
<col style="width: 0%" />
</colgroup>
<tbody>
<tr class="odd">
<td></td>
<td colspan="39">OMB Approval No. 2700-0042</td>
<td colspan="7"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="23">amendment of solicitation/</td>
<td colspan="13">1. CONTRACT ID CODE</td>
<td colspan="6">PAGE OF PAGES</td>
<td colspan="4"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="23">modification of contract</td>
<td colspan="13">NAS 9-98100</td>
<td colspan="2">1</td>
<td>6</td>
<td colspan="7"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="12">+2. AMENDMENT/MODIFICATION NO.</td>
<td colspan="9">3. EFFECTIVE DATE</td>
<td colspan="9">4. REQUISITION/PURCHASE REQ. NO.</td>
<td colspan="9">5. PROJECT NO. <em>(If applicable)</em></td>
<td colspan="7"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="12">Contract Action 338</td>
<td colspan="9">See Block 16C</td>
<td colspan="9">01-281-TA1-M</td>
<td colspan="9"></td>
<td colspan="7"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="9">6. ISSUED BY</td>
<td colspan="3">CODE</td>
<td colspan="9"></td>
<td colspan="10">7. ADMINISTERED BY <em>(If other than Item 6)</em></td>
<td colspan="5">CODE</td>
<td colspan="3"></td>
<td colspan="7"></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, Texas 77058</p></td>
<td colspan="22"></td>
<td colspan="4"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="42">8. NAME AND ADDRESS OF CONTRACTOR <em>(No., street,
county, State, and ZIP Code)</em></td>
<td colspan="4"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="42"><p>LOCKHEED MARTIN SPACE OPERATIONS COMPANY</p>
<p>Attn: Kathy Collins, Manager of Contracts</p>
<p>595 Gemini Avenue</p>
<p>Houston, Texas 77058</p></td>
<td colspan="4"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="6">CODE</td>
<td colspan="15"></td>
<td colspan="7">FACILITY CODE</td>
<td colspan="11"></td>
<td colspan="7"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="4">(x)</td>
<td colspan="17">9A. AMENDMENT OF SOLICITATION NO.</td>
<td colspan="18">9B. DATED <em>(SEE ITEM 11)</em></td>
<td colspan="7"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="4"></td>
<td colspan="17"></td>
<td colspan="18"></td>
<td colspan="7"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="4"></td>
<td colspan="17">10A. MODIFICATION OF CONTRACT/ORDER NO.</td>
<td colspan="18">10B. DATED <em>(SEE ITEM 13)</em></td>
<td colspan="7"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="4">X</td>
<td colspan="17">NAS 9-98100</td>
<td colspan="18">10/1/98</td>
<td colspan="7"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="46">11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF
SOLICITATIONS</td>
</tr>
<tr class="even">
<td></td>
<td colspan="46"></td>
</tr>
<tr class="odd">
<td colspan="2"></td>
<td></td>
<td colspan="30">The above numbered solicitation is amended as set forth
in Item 14. The hour and date specified for receipt of Offers</td>
<td></td>
<td colspan="3">is extended,</td>
<td></td>
<td colspan="4">is not extended.</td>
<td colspan="5"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="46">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>
</tr>
<tr class="odd">
<td></td>
<td colspan="13"></td>
<td colspan="4"></td>
<td colspan="27"></td>
<td colspan="2"></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="28">copies of the amendment; (b) By acknowledging receipt
of this amendment on each copy of the offer</td>
<td colspan="3"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="46">submitted; or (c) By separate letter or telegram which
includes a reference to the solicitation and amendment numbers. FAILURE
OF YOUR ACKNOWLEDGEMENT TO</td>
</tr>
<tr class="even">
<td></td>
<td colspan="46">BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF
OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION
OF</td>
</tr>
<tr class="odd">
<td></td>
<td colspan="46">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>
</tr>
<tr class="even">
<td></td>
<td colspan="46">or letter makes reference to the solicitation and this
amendment, and is received prior to the opening hour and date
specified.</td>
</tr>
<tr class="odd">
<td></td>
<td colspan="46">12. ACCOUNTING AND APPROPRIATION DATA <em>(If
required)</em></td>
</tr>
<tr class="even">
<td></td>
<td colspan="46">See pages 3-6 INCREASE: 79,324,985.14</td>
</tr>
<tr class="odd">
<td></td>
<td colspan="39">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="7"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="5">(x)</td>
<td colspan="38">A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify
authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE</td>
<td colspan="3"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="5"></td>
<td colspan="12">CONTRACT ORDER NO. IN ITEM 10A.</td>
<td colspan="22"></td>
<td colspan="7"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="5"></td>
<td colspan="38">B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO
REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying
office,</td>
<td colspan="3"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="5"></td>
<td colspan="38">appropriation date, etc.) SET FORTH IN ITEM 14,
PURSUANT TO THE AUTHORITY OF FAR 43.103(b).</td>
<td colspan="3"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="5"></td>
<td colspan="38">C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT
TO AUTHORITY OF:</td>
<td colspan="3"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="5"></td>
<td colspan="38"></td>
<td colspan="3"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="5"></td>
<td colspan="38">d. OTHER <em>(Specify type of modification and
authority)</em></td>
<td colspan="3"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="5">X</td>
<td colspan="38">Pursuant to FAR 52.23-22, Limitation of Funds (April
1984)</td>
<td colspan="3"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="8"></td>
<td colspan="3"></td>
<td colspan="2"></td>
<td colspan="4"></td>
<td colspan="10"></td>
<td colspan="2"></td>
<td colspan="17"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="7"><strong>E. IMPORTANT:</strong> Contractor</td>
<td colspan="3">X</td>
<td colspan="3">is not,</td>
<td colspan="3"></td>
<td colspan="8">is required to sign this document and return</td>
<td colspan="2"></td>
<td colspan="19">copies to the issuing office.</td>
<td></td>
</tr>
<tr class="even">
<td></td>
<td colspan="46"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="46">14. Description of amendment/modification
<em>(Organized by UCF section headings, including solicitation/contract
subject matter where feasible.)</em></td>
</tr>
<tr class="even">
<td></td>
<td colspan="46"><p>See page 2- 6.</p>
<blockquote>
<p> </p>
</blockquote></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="46">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>
</tr>
<tr class="even">
<td></td>
<td colspan="20">15A. NAME AND TITLE OF SIGNER <em>(Type or
print)</em></td>
<td colspan="22">16A. NAME AND TITLE OF CONTRACTING OFFICER <em>(Type or
print)</em></td>
<td colspan="4"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="20"></td>
<td colspan="19"><h2
id="caroline-marrs-root-contracting-officer">Caroline Marrs Root,
Contracting Officer</h2></td>
<td colspan="7"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="18">15B. CONTRACTOR/OFFEROR</td>
<td colspan="3">15C. DATE SIGNED</td>
<td colspan="14">16B. UNITED STATES OF AMERICA</td>
<td colspan="4">16C. DATE SIGNED</td>
<td colspan="7"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="3"></td>
<td colspan="11"></td>
<td colspan="4"></td>
<td colspan="3"></td>
<td>BY</td>
<td colspan="12"><mark>Original signed by: Caroline Root</mark></td>
<td><mark></mark></td>
<td colspan="5"><mark>05-23-2002</mark></td>
<td colspan="6"><mark></mark></td>
</tr>
<tr class="even">
<td></td>
<td colspan="18"><em>(Signature of person authorized to sign)</em></td>
<td colspan="3"></td>
<td colspan="14"><em>(Signature of Contracting Officer)</em></td>
<td colspan="4"></td>
<td colspan="7"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="19">NSN 7540-01-152-8070<br />
PREVIOUS EDITION UNUSABLE</td>
<td colspan="6">30-105<br />
JSC MS Word (Aug 95)</td>
<td colspan="14"><strong>STANDARD FORM 30</strong> (Rev. 10-83)<br />
Prescribed by GSA<br />
FAR (48 CFR) 53.243</td>
<td colspan="7"></td>
</tr>
</tbody>
</table>

I. The purpose of this Modification 338 is to add incremental funding to
this contract. Clause B.2, CONTRACT FUNDING, is deleted in its entirety
and replaced with the following:

B.2 CONTRACT FUNDING (NASA 1852.232-81) (JUN 1990)

> \(a\) For the purpose of cost, exclusive of fee, in accordance with
> the Limitation of Funds clause, the total amount allotted by the
> Government to this contract for all efforts is \$1,404,580,094.41.
> This allotment is for all CSOC efforts and covers the following
> estimated period of performance October 31, 1998 to August 9, 2002.
>
> \(b\) An additional amount of \$141,294,340.42 is obligated under this
> contract for all efforts for payment of fee.
>
> (End of Clause)
>
> Funding Recapitulation:

  ----------- -- ------------------ ------------------ -----------------------
                 Prior Balance      Modification 338   New Balance

  Cost           1,332,466,471.56   72,113,622.85      1,404,580,094.41

                                                       

  Fee            134,082,978.13     7,211,362.29       141,294,340.42

                                                       

  **Total**      1,466,549,449.69   79,324,985.14      1,545,874,434.83
  ----------- -- ------------------ ------------------ -----------------------

  -------------------- ---- --- -- ------ --- -- ------ ---- ---- ---- --------- ---- ---- -------------- --------------- ----------------- --
  **[Commitments                                                                                                                            
  (Amount of                                                                                                                                
  PR)]{.underline}**                                                                                                                        

  6A                   TA          2540          TA11   72        00             02   54   320-10-20-01   \$ 55,000.00                      

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   54   320-10-20-SD   \$ 161,600.00                     

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   54   322-10-35-SD   \$ 74,000.00                      

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   54   322-10-ED-SD   \$ 200,000.00                     

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   54   329-10-PR-GM   \$ 3,288,000.00                   

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   54   329-10-10-SD   \$ 190,000.00                     

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   54   329-20-00-00   \$ 9,442,000.00                   

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   54   329-20-10-SD   \$ 45,000.00                      

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   54   329-40-40-00   \$                                
                                                                                                          14,424,000.00                     

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   54   329-40-40-SD   \$ 300,000.00                     

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   54   329-50-00-00   \$                                
                                                                                                          21,721,264.14                     

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   54   374-80-15-00   \$ 2,985,000.00                   

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   54   375-10-10-MS   \$ 3,741.00                       

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   54   375-10-10-51   \$ 370,000.00                     

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   54   375-10-10-MV   \$ 1,595,499.00                   

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   54   377-10-10-00   \$ 358,005.00                     

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   54   377-10-10-12   \$ 70,377.00                      

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   54   377-10-10-MA   \$ 114,990.00                     

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   29   428-52-00-00   \$ 89,000.00                      

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   29   469-90-00-00   \$ 17,638.00                      

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   52   475-81-08-MV   \$ 1,351,689.00                   

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   52   475-81-10-IV   \$ 514,311.00                     

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   52   575-81-03-76   \$ 363,181.00                     

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   52   575-81-03-SD   \$ 10,000.00                      

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   52   575-81-08-MM   \$ 3,198,890.00                   

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   52   575-81-08-MV   \$ 1,394,566.00                   

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   52   575-81-10-IM   \$ 346,485.00                     

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   52   575-81-13-VH   \$ 36,638.00                      

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   52   575-81-14-51   \$ 64,240.00                      

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   52   575-15-EV-06   \$ 340,580.00                     

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   29   665-55-00-00   \$ 138,000.00                     

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   29   706-85-00-00   \$ 94,000.00                      

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   29   708-72-00-00   \$ 47,000.00                      

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   29   713-50-00-00   \$ 95,110.00                      

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   29   860-10-00-00   \$ 62,789.00                      

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   54   R32971000      \$ 137,033.00                     

                                                                                           329-96-WT-56                                     

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   54   R32991000      \$ 173,241.00                     

                                                                                           329-96-WT-57                                     

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   54   R33021000      \$ 168,070.00                     

                                                                                           329-96-WT-59                                     

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   29   R32981000      \$ 500.00                         

                                                                                           771-50-WT-01                                     

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   54   R32961000      \$ 117,500.00                     

                                                                                           329-96-WT-58                                     

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   29   R33011000      \$ 6,000.00                       

                                                                                           771-50-WT-02                                     

                                                                                                                                            

  6A                   TA          2540          TA11   72        00             02   54   R32871000      \$ 8,000,000.00                   

                                                                                           329-96-WT-A4                                     

                                                                                                                                            

  6A                   TA          2540          TA11   72        21             02   29   344-50-92-00   \$ 1,052.00                       

                                                                                                                                            

  6A                   TA          2540          TA11   72        51             02   29   370-03-04-SD   \$ 40,000.00                      

                                                                                                                                            

  6A                   TA          2540          TA11   72        51             02   29   370-08-01-01   \$ 1,190,000.00                   

                                                                                                                                            

  6A                   TA          2540          TA11   72        51             02   29   370-18-01-01   \$ 180,000.00                     

                                                                                                                                            

  6A                   TA          2540          TA11   72        51             02   29   370-30-80-00   \$ 47,120.00                      

                                                                                                                                            

  6A                   TA          2540          TA11   72        51             02   29   370-34-01-01   \$ 224,000.00                     

                                                                                                                                            

  6A                   TA          2540          TA11   72        51             02   29   370-35-01-01   \$ 180,000.00                     

                                                                                                                                            

  6A                   TA          2540          TA11   72        51             02   29   428-37-01-00   \$ 11,500.00                      

                                                                                                                                            

  6A                   TA          2540          TA11   72        51             02   29   428-37-99-TC   \$ 1,000,000.00                   

                                                                                                                                            

  6A                   TA          2540          TA11   72        51             02   29   468-08-10-01   \$ 569,000.00                     

                                                                                                                                            

  6A                   TA          2540          TA11   72        51             02   29   468-15-10-01   \$ 13,000.00                      

                                                                                                                                            

  6A                   TA          2540          TA11   72        51             02   29   470-02-10-01   \$ 829,468.00                     

                                                                                                                                            

  6A                   TA          2540          TA11   72        51             02   29   470-03-10-01   \$ 737,358.00                     

                                                                                                                                            

  6A                   TA          2540          TA11   72        51             02   29   470-03-10-SD   \$ 845,891.00                     

                                                                                                                                            

  6A                   TA          2540          TA11   72        51             02   29   470-04-10-01   \$ 100,000.00                     

                                                                                                                                            

  6A                   TA          2540          TA11   72        51             02   29   470-05-10-01   \$ 382,000.00                     

                                                                                                                                            

  6A                   TA          2540          TA11   72        51             02   29   470-06-10-01   \$ 23,000.00                      

                                                                                                                                            

  6A                   TA          2540          TA11   72        51             02   29   470-06-10-SD   \$ 30,939.00                      

                                                                                                                                            

  6A                   TA          2540          TA11   72        51             02   29   470-07-10-01   \$ 50,000.00                      

                                                                                                                                            

  6A                   TA          2540          TA11   72        51             02   29   470-11-10-01   \$ 318,000.00                     

                                                                                                                                            

  6A                   TA          2540          TA11   72        51             02   29   470-13-10-01   \$ 27,000.00                      

                                                                                                                                            

  6A                   TA          2540          TA11   72        51             02   29   470-28-10-01   \$ 47,000.00                      

                                                                                                                                            

  6A                   TA          2540          TA11   72        51             02   29   470-30-10-01   \$ 100,000.00                     

                                                                                                                                            

  6A                   TA          2540          TA11   72        51             02   29   470-90-10-SD   \$ 100,000.00                     

                                                                                                                                            

  6A                   TA          2540          TA11   72        51             02   29   621-80-01-TC   \$ 3,509.00                       

                                                                                                                                            

  6A                   TA          2540          TA11   72        51             02   29   665-55-75-TC   \$ 10,490.00                      

                                                                                                                                            

  6A                   TA          2540          TA11   72        51             02   29   773-10-00-00   \$ 14,476.00                      

                                                                                                                                            

  6A                   TA          2540          TA11   72        62             02   29   210-10-50-00   \$ 85,245.00                      

                                                                       **TOTAL                                            **\$              
                                                                       AMOUNT OF                                          79,324,985.14**   
                                                                       PR**                                                                 
  -------------------- ---- --- -- ------ --- -- ------ ---- ---- ---- --------- ---- ---- -------------- --------------- ----------------- --