<SEC-DOCUMENT>0001209191-18-054771.txt : 20181011
<SEC-HEADER>0001209191-18-054771.hdr.sgml : 20181011
<ACCEPTANCE-DATETIME>20181011153310
ACCESSION NUMBER:		0001209191-18-054771
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20181009
FILED AS OF DATE:		20181011
DATE AS OF CHANGE:		20181011

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Pickens Thomas Boone III
		CENTRAL INDEX KEY:			0001310519

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34426
		FILM NUMBER:		181118351

	MAIL ADDRESS:	
		STREET 1:		12130 HIGHWAY 3, BLDG. 1
		CITY:			WEBSTER
		STATE:			TX
		ZIP:			77598

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ASTROTECH Corp
		CENTRAL INDEX KEY:			0001001907
		STANDARD INDUSTRIAL CLASSIFICATION:	LABORATORY ANALYTICAL INSTRUMENTS [3826]
		IRS NUMBER:				911273737
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0630

	BUSINESS ADDRESS:	
		STREET 1:		201 W. 5TH STREET
		STREET 2:		SUITE 1275
		CITY:			AUSTIN
		STATE:			TX
		ZIP:			78701
		BUSINESS PHONE:		5124859530

	MAIL ADDRESS:	
		STREET 1:		201 W. 5TH STREET
		STREET 2:		SUITE 1275
		CITY:			AUSTIN
		STATE:			TX
		ZIP:			78701

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ASTROTECH Corp \WA\
		DATE OF NAME CHANGE:	20090310

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SPACEHAB INC \WA\
		DATE OF NAME CHANGE:	19951006
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2018-10-09</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001001907</issuerCik>
        <issuerName>ASTROTECH Corp</issuerName>
        <issuerTradingSymbol>ASTC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001310519</rptOwnerCik>
            <rptOwnerName>Pickens Thomas Boone III</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>201 W. 5TH STREET</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 1275</rptOwnerStreet2>
            <rptOwnerCity>AUSTIN</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>78701</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Executive Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Series B Preferred Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>2.35</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2018-10-09</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>866950</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>2.35</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>866950</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>866950</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The Reporting Person purchased Series B Preferred Stock from the Company on October 9, 2018. The Series B Preferred Stock has no expiration date and will be automatically convertible into an aggregate of 866,950 shares of common stock upon receipt of shareholder approval in accordance with Listing Rule 5635(b).</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Thomas B. Pickens III</signatureName>
        <signatureDate>2018-10-11</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
