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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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<SEC-DOCUMENT>0001337072-07-000001.txt : 20070109
<SEC-HEADER>0001337072-07-000001.hdr.sgml : 20070109
<ACCEPTANCE-DATETIME>20070109202251
ACCESSION NUMBER:		0001337072-07-000001
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20060823
FILED AS OF DATE:		20070109
DATE AS OF CHANGE:		20070109

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ANALEX CORP
		CENTRAL INDEX KEY:			0000044800
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER PROGRAMMING, DATA PROCESSING, ETC. [7370]
		IRS NUMBER:				112120726
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1206

	BUSINESS ADDRESS:	
		STREET 1:		2677 PROSPERITY AVENUE
		STREET 2:		SUITE 400
		CITY:			FAIRFAX
		STATE:			VA
		ZIP:			22031
		BUSINESS PHONE:		703-852-4000

	MAIL ADDRESS:	
		STREET 1:		2677 PROSPERITY AVENUE
		STREET 2:		SUITE 400
		CITY:			FAIRFAX
		STATE:			VA
		ZIP:			22031

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	HADRON INC
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	BIORAD INC
		DATE OF NAME CHANGE:	19710304

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Grubbs C Wayne
		CENTRAL INDEX KEY:			0001337072

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31613
		FILM NUMBER:		07521621

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		703-852-4000

	MAIL ADDRESS:	
		STREET 1:		2677 PROSPERITY AVENUE
		STREET 2:		SUITE 400
		CITY:			FAIRFAX
		STATE:			VA
		ZIP:			22031
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2006-08-23</periodOfReport>

    <dateOfOriginalSubmission>2006-08-24</dateOfOriginalSubmission>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000044800</issuerCik>
        <issuerName>ANALEX CORP</issuerName>
        <issuerTradingSymbol>nlx</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001337072</rptOwnerCik>
            <rptOwnerName>Grubbs C Wayne</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2677 PROSPERITY AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 400</rptOwnerStreet2>
            <rptOwnerCity>FAIRFAX</rptOwnerCity>
            <rptOwnerState>VA</rptOwnerState>
            <rptOwnerZipCode>22031</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Senior Vice President and CFO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, $0.02 par value</value>
            </securityTitle>
            <transactionDate>
                <value>2006-08-23</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>2754</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>2.09</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>60402</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Shares acquired pursuant to participation in the Analex Corporation Employee Stock Purchase Plan (&quot;ESPP&quot;).  For the ESPP purchase period of July 1, 2006 to December 31, 2006, Mr. Grubbs elected to purchase $25,000 of Common Stock.  Since the ESPP provides for a 5% purchase price discount, the contributions made by Mr. Grubbs should have been limited to $23,750.  Excess contributions of $1,250 originally made by Mr. Grubbs and used to purchase Common Stock, have been returned to him and the shares of Common Stock reported as purchased with the excess contributions have been cancelled.  This Form 4 amendment reduces by 117 shares the number of shares of Common Stock originally reported as purchased on August 23, 2006.  In addition, in connection with the ESPP, Mr. Grubbs is also amending a separate Form 4 that was dated September 12, 2006, pursuant to which Mr. Grubbs is reducing the amount of shares of Common Stock held by him by 468 shares.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/S/ C. WAYNE GRUBBS POA MICHELE REING</signatureName>
        <signatureDate>2007-01-09</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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