-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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<SEC-DOCUMENT>0001209191-04-013922.txt : 20040303
<SEC-HEADER>0001209191-04-013922.hdr.sgml : 20040303
<ACCEPTANCE-DATETIME>20040303122953
ACCESSION NUMBER:		0001209191-04-013922
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20040227
FILED AS OF DATE:		20040303

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GRABE RONALD J/VA
		CENTRAL INDEX KEY:			0001229430
		STANDARD INDUSTRIAL CLASSIFICATION:	SEARCH, DETECTION, NAVIGATION, GUIDANCE, AERONAUTICAL SYS [3812]
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-14279
		FILM NUMBER:		04645221

	BUSINESS ADDRESS:	
		STREET 1:		21839 ATLANTIC BLVD
		CITY:			DULLES
		STATE:			VA
		ZIP:			20166
		BUSINESS PHONE:		703406 5524

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ORBITAL SCIENCES CORP /DE/
		CENTRAL INDEX KEY:			0000820736
		STANDARD INDUSTRIAL CLASSIFICATION:	RADIO & TV BROADCASTING & COMMUNICATIONS EQUIPMENT [3663]
		IRS NUMBER:				061209561
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		21839 ATLANTIC BLVD
		CITY:			DULLES
		STATE:			VA
		ZIP:			20166
		BUSINESS PHONE:		703406 5524

	MAIL ADDRESS:	
		STREET 1:		21700 ATLANTIC BLVD
		STREET 2:		21700 ATLANTIC BLVD
		CITY:			DULLES
		STATE:			VA
		ZIP:			20166

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ORBITAL SCIENCES CORP II
		DATE OF NAME CHANGE:	19900212
</SEC-HEADER>
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    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option</value>
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                <value>3.4500</value>
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                <value>2004-02-27</value>
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                    <value>D</value>
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            <exerciseDate>
                <value>2002-12-04</value>
                <footnoteId id="F1"/>
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            <expirationDate>
                <value>2011-12-04</value>
            </expirationDate>
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    <footnotes>
        <footnote id="F1">The option vested in two equal installments on December 4, 2002 and December 4, 2003.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Ronald Grabe by Susan Herlick, Attorney-in-Fact</signatureName>
        <signatureDate>2004-03-02</signatureDate>
    </ownerSignature>
</ownershipDocument>

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-----END PRIVACY-ENHANCED MESSAGE-----