<SEC-DOCUMENT>0000950157-14-001245-index.html : 20141118
<SEC-HEADER>0000950157-14-001245.hdr.sgml : 20141118
<ACCEPTANCE-DATETIME>20141117183010
ACCESSION NUMBER:		0000950157-14-001245
CONFORMED SUBMISSION TYPE:	425
PUBLIC DOCUMENT COUNT:		4
FILED AS OF DATE:		20141118
DATE AS OF CHANGE:		20141117

SUBJECT COMPANY:	

	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

	FILING VALUES:
		FORM TYPE:		425
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-14279
		FILM NUMBER:		141229093

	BUSINESS ADDRESS:	
		STREET 1:		45101 WARP DRIVE
		CITY:			DULLES
		STATE:			VA
		ZIP:			20166
		BUSINESS PHONE:		703 406 5524

	MAIL ADDRESS:	
		STREET 1:		45101 WARP DRIVE
		STREET 2:		45101 WARP DRIVE
		CITY:			DULLES
		STATE:			VA
		ZIP:			20166

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ORBITAL SCIENCES CORP II
		DATE OF NAME CHANGE:	19900212

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ALLIANT TECHSYSTEMS INC
		CENTRAL INDEX KEY:			0000866121
		STANDARD INDUSTRIAL CLASSIFICATION:	GUIDED MISSILES & SPACE VEHICLES & PARTS [3760]
		IRS NUMBER:				411672694
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0331

	FILING VALUES:
		FORM TYPE:		425

	BUSINESS ADDRESS:	
		STREET 1:		1300 WILSON BOULEVARD
		STREET 2:		SUITE 400
		CITY:			ARLINGTON
		STATE:			VA
		ZIP:			22209
		BUSINESS PHONE:		7034125960

	MAIL ADDRESS:	
		STREET 1:		1300 WILSON BOULEVARD
		STREET 2:		SUITE 400
		CITY:			ARLINGTON
		STATE:			VA
		ZIP:			22209
</SEC-HEADER>
<DOCUMENT>
<TYPE>425
<SEQUENCE>1
<FILENAME>form8k.htm
<DESCRIPTION>CURRENT REPORT
<TEXT>
Document 1 - file: form8k.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>ex99-1.htm
<DESCRIPTION>PRESS RELEASE
<TEXT>
Document 2 - file: ex99-1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>atk-logo.jpg
<TEXT>
Document 3 - file: atk-logo.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>orbital.jpg
<TEXT>
Document 4 - file: orbital.jpg

</DOCUMENT>
</SEC-DOCUMENT>