From ngc@metronet.com Sun Jul 3 16:23:06 1994 X-VM-Message-Order: (1 2) X-VM-Summary-Format: "%n %*%a %-17.17F %-3.3m %2d %4l/%-5c %I\"%s\"\n" X-VM-Labels: nil X-VM-VHeader: ("Resent-" "From:" "Sender:" "To:" "Apparently-To:" "Cc:" "Subject:" "Date:") nil X-VM-Bookmark: 2 Status: RO X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["1664" "Tue" "28" "June" "1994" "21:02:20" "GMT" "Nick Chart-Geoscene" "ngc@metronet.com" "" "40" "Re: Anyone know what SEGY is?" "^From:" nil nil "6" "1994062821:02:20" "Anyone know what SEGY is?" (number " " mark " Nick Chart-Geosce Jun 28 40/1664 " thread-indent "\"Re: Anyone know what SEGY is?\"\n") "<2uc41p$au4@news.tamu.edu>"] nil) Newsgroups: sci.data.formats Path: saips.cv.nrao.edu!hearst.acc.Virginia.EDU!darwin.sura.net!europa.eng.gtefsd.com!news.umbc.edu!eff!usenet.ins.cwru.edu!news.ecn.bgu.edu!feenix.metronet.com!ngc Message-ID: References: <1994Jun21.171346.35925@Lehigh.EDU> <2uc41p$au4@news.tamu.edu> Organization: Texas Metronet, Internet for the Individual 214-705-2901 (info) Lines: 40 From: ngc@metronet.com (Nick Chart-Geoscene) Subject: Re: Anyone know what SEGY is? Date: Tue, 28 Jun 1994 21:02:20 GMT Re: Anyone know what SEGY is? SEG = Society of Exploration Geophysicists >From "Recommended Standards for Digital Tape Formats" by Barry, Cavers, and Kneale, Oct 1974... In 1973 a subcomittee of the SEG committee on technical standards was organised to gather information and develop a nine-track, half-inch tape, demultiplexed format for industry acceptance. The SEG Y format was developed from the previous SEG Exchange Tape Format, known as the SEG "Ex" format. A SEG Y tape basically contains several blocks of data. The first is 3200 bytes of EBCDIC text, the second is a 400 byte binary header and the rest are all the same size, each containing the data from one trace and each beginning with a 240 byte trace header. In general the information in the binary and trace headers cannot be relied upon. The trace data itself is most often in 4 byte IBM floating point numbers, but the byte ordering is not always the same on different SEG Y tapes. Regards, Nick. ---------------------------------------------------------------------------- Nicholas G Chart EMAIL : ngc@metronet.com GeoScene Systems Inc PHONE : 214 934 6702 14001 Dallas Parkway, Suite 1200 FAX : 214 934 6792 Dallas, Texas 75240, USA COMPUSERVE : 74103,2125 ---------------------------------------------------------------------------- -- ---------------------------------------------------------------------------- Nicholas G Chart EMAIL : ngc@metronet.com GeoScene Systems Inc PHONE : 214 934 6702 14001 Dallas Parkway, Suite 1200 FAX : 214 934 6792 From Charles G. James,james@unca.edu Mon Jul 11 13:25:30 1994 Status: RO X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["720" "" " 8" "July" "1994" "17:28:48" "GMT" "Charles G. James" "Charles G. James" "<2vk2cg$7og@balsam.unca.edu>" "15" "Re: JCAMP data format" "^From:" nil nil "7" "1994070817:28:48" "JCAMP data format" (number " " mark " Charles G. James Jul 8 15/720 " thread-indent "\"Re: JCAMP data format\"\n") "<1994Jun29.163948.9280@galileo.cc.rochester.edu>"] nil) Xref: saips.cv.nrao.edu sci.data.formats:513 sci.techniques.spectroscopy:498 sci.chem:20037 Path: saips.cv.nrao.edu!hearst.acc.Virginia.EDU!concert!balsam!mac09.at.unca.edu!james Newsgroups: sci.data.formats,sci.techniques.spectroscopy,sci.chem Organization: University of North Carolina at Asheville Lines: 15 Distribution: world Message-ID: <2vk2cg$7og@balsam.unca.edu> References: <1994Jun29.163948.9280@galileo.cc.rochester.edu> NNTP-Posting-Host: mac09.at.unca.edu X-UserAgent: X-XXMessage-ID: X-XXDate: Fri, 8 Jul 94 13:32:42 GMT From: Charles G. James, Jr. Subject: Re: JCAMP data format Date: 8 Jul 1994 17:28:48 GMT In article <1994Jun29.163948.9280@galileo.cc.rochester.edu> D. Joe Anderson, adrs@uhura.cc.rochester.edu writes: > I'm looking for information on the jcamp data format. I understand that it > is not completely standardized... The earliest reference I found was R.S. McDonald and P.A. Wilks, Applied Spectroscopy, Vol 42, p151-162 (1988). I have not worked with it for a while, but I was having trouble with different companies implimentation of the standard format. Charles G. James, Jr. Assoc. Professor of Chemistry Dept. of Chemistry, University of North Carolina at Asheville Asheville, NC 28804-3299, USA, Phone: (704)251-6443 FAX: (704)251-6041 E-mail: james@unca.edu