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100   $a19970213j196906    ua             0
101 0 $aeng
135   $aur|||||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aGravity model comparison using GEOS I long-arc orbital solutions /$fby Francis J. Learch, James G. Marsh, and Brian O'Neill
210  1$aWashington, D.C. :$cNational Aeronautics and Space Administration,$dJune 1969.
215   $a1 online resource (various pagings) $cillustrations
225 1 $aNASA technical note ;$vNASA TN D-5035
300   $a"June 1969."
320   $aIncludes bibliographical references.
606   $aGeodetic satellites
606   $aGravitational fields$xMathematical models
606   $aArtificial satellites$xOrbits
606   $aArtificial satellites$xOrbits$2fast
606   $aGeodetic satellites$2fast
606   $aGravitational fields$xMathematical models$2fast
615  0$aGeodetic satellites.
615  0$aGravitational fields$xMathematical models.
615  0$aArtificial satellites$xOrbits.
615  7$aArtificial satellites$xOrbits.
615  7$aGeodetic satellites.
615  7$aGravitational fields$xMathematical models.
700   $aLerch$b F. J$g(Francis J.),$01396702
702   $aMarsh$b James G.
702   $aO'Neill$b Brian
712 02$aUnited States.$bNational Aeronautics and Space Administration,
801  0$bSCA
801  1$bSCA
801  2$bOCL
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801  2$bAD#
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801  2$bGPO
906   $aBOOK
912   $a9910713937203321
996   $aGravity model comparison using GEOS I long-arc orbital solutions$93487162
997   $aUNINA