SIMPLE = T / file does conform to FITS standard BITPIX = 16 / number of bits per data pixel NAXIS = 0 / number of data axes EXTEND = T / FITS dataset may contain extensions COMMENT FITS (Flexible Image Transport System) format is defined in 'AstronomyCOMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H HDUNAME = 'PRIMARY ' LONGSTRN= 'OGIP 1.0' / The HEASARC Long String Convention may be used.COMMENT This FITS file may contain long string keyword values that are COMMENT continued over multiple keywords. The HEASARC convention uses the & COMMENT character at the end of each substring which is then continued COMMENT on the next keyword which has the name CONTINUE. DATE = '2010-12-03T23:31:51' / Date and time of file creation DATE-OBS= '2001-01-06T11:36:05' / Observation start date DATE-END= '2001-01-07T08:19:38' / Observation end date TIMESYS = 'TT ' / Time system MJDREF = 5.0814000000000E+04 / MJD zero point for times TIMEZERO= 0.0000000000000E+00 / Clock correction TIMEUNIT= 's ' / Time unit CLOCKAPP= T / default TSTART = 9.5168165481932E+07 / Observation start time TSTOP = 9.5242778309793E+07 / Observation end time MISSION = 'AXAF ' / Mission TELESCOP= 'CHANDRA ' / Telescope INSTRUME= 'ACIS ' / Instrument OBS_ID = '2252 ' / Observation id SEQ_NUM = '900079 ' / Sequence number ORIGIN = 'ASC ' / Source of FITS file CREATOR = 'mkwarf - Version CIAO 4.2' / tool that created this output MJD_OBS = 5.1915483396782E+04 / Modified Julian date of observation DS_IDENT= 'ADS/Sa.CXO#obs/02252' / dataset identifier CHECKSUM= 'ibT8jZQ7iaQ7iYQ7' / HDU checksum updated 2010-12-03T23:31:51 DATASUM = ' ' / data unit checksum updated 2010-12-03T23:31:49 END XTENSION= 'BINTABLE' / binary table extension BITPIX = 8 / 8-bit bytes NAXIS = 2 / 2-dimensional binary table NAXIS1 = 12 / width of table in bytes NAXIS2 = 1070 / number of rows in table PCOUNT = 0 / size of special data area GCOUNT = 1 / one data group (required keyword) TFIELDS = 3 / number of fields in each row EXTNAME = 'SPECRESP' / name of this binary table extension HDUNAME = 'SPECRESP' / ASCDM block name TTYPE1 = 'ENERG_LO' / Min Energy TFORM1 = '1E ' / format of field TUNIT1 = 'keV ' TTYPE2 = 'ENERG_HI' / Max Energy TFORM2 = '1E ' / format of field TUNIT2 = 'keV ' TTYPE3 = 'SPECRESP' / Effective Area TFORM3 = '1E ' / format of field TUNIT3 = 'cm**2 ' EQUINOX = 2.0000000000000E+03 / default LONGSTRN= 'OGIP 1.0' / The HEASARC Long String Convention may be used.COMMENT This FITS file may contain long string keyword values that are COMMENT continued over multiple keywords. The HEASARC convention uses the & COMMENT character at the end of each substring which is then continued COMMENT on the next keyword which has the name CONTINUE. DATE = '2010-12-03T23:31:51' / Date and time of file creation DATE-OBS= '2001-01-06T11:36:05' / Observation start date OBS_MODE= 'POINTING' / Observation mode DATE-END= '2001-01-07T08:19:38' / Observation end date TIMESYS = 'TT ' / Time system MJDREF = 5.0814000000000E+04 / MJD zero point for times TIMEZERO= 0.0000000000000E+00 / Clock correction TIMEUNIT= 's ' / Time unit BTIMNULL= 9.3020229724591E+07 / Basic Time offset (s) DATACLAS= 'OBSERVED' / default RADECSYS= 'ICRS ' / default BTIMRATE= 2.5625000981725E-01 / Basic Time clock rate (s / VCDUcount) BTIMDRFT= 2.6765367292105E-18 / Basic Time clock drift (s / VCDUcount^2) BTIMCORR= 0.0000000000000E+00 / Correction applied to Basic Time rate (s) TIMEREF = 'LOCAL ' / Time reference (barycenter/local) TASSIGN = 'SATELLITE' / Time assigned by clock CLOCKAPP= T / default SIM_X = -7.8090834371673E-01 / SIM focus pos (mm) SIM_Y = 0.0000000000000E+00 / SIM orthogonal axis pos (mm) SIM_Z = -2.3358743446083E+02 / SIM translation stage pos (mm) FOC_LEN = 1.0070000000000E+04 / HRMA focal length (mm) TIERRELA= 1.0000000000000E-09 / default TIERABSO= 5.0000000000000E-05 / default TIMVERSN= 'ASC-FITS-2' / Timing system definition TSTART = 9.5168165481932E+07 / Observation start time GRATING = 'NONE ' / Grating DETNAM = 'ACIS-012367' / Detector RA_PNT = 5.6387628697435E+00 / Pointing RA DEC_PNT = 3.4380380308817E-01 / Pointing Dec ROLL_PNT= 2.9322039050309E+02 / Pointing Roll RA_TARG = 5.6387500000000E+00 / Observer's specified target RA DEC_TARG= 3.4861100000000E-01 / Observer's specified target Dec DEFOCUS = 1.4398718632593E-03 / SIM defocus (mm) RA_NOM = 5.6387628697435E+00 / Nominal RA DEC_NOM = 3.4380380308817E-01 / Nominal Dec ROLL_NOM= 2.9322039050309E+02 / Nominal Roll TSTOP = 9.5242778309793E+07 / Observation end time STARTOBT= 0.0000000000000E+00 / On-Board MET close to STARTMJF and STARTMNF TIMEPIXR= 5.0000000000000E-01 / default TIMEDEL = 3.2410400000000E+00 / timedel Lev1 (in seconds) CTI_CORR= T MISSION = 'AXAF ' / Mission TELESCOP= 'CHANDRA ' / Telescope INSTRUME= 'ACIS ' / Instrument READMODE= 'TIMED ' / Read mode DATAMODE= 'VFAINT ' / Data mode FLSHTIME= 0.0000000000000E+00 / Inferred duration of each flush. (s) CYCLE = 'P ' / events from which exps? Prim/Second/Both OBSERVER= 'PROFESSOR TOM SHANKS' / Principal investigator OBJECT = 'WHDF ' / Source name OBS_ID = '2252 ' / Observation id SEQ_NUM = '900079 ' / Sequence number ONTIME = 7.2127791184083E+04 / [s] Sum of GTIs LIVETIME= 7.1214465661968E+04 / [s] Livetime EXPOSURE= 7.1214465661968E+04 / [s] Exposure time DTCOR = 9.8733739787229E-01 / Dead time correction ASPTYPE = 'KALMAN ' FP_TEMP = 1.5344601440000E+02 / [K] Focal Plane Temperature ORIGIN = 'ASC ' / Source of FITS file CREATOR = 'mkwarf - Version CIAO 4.2' / tool that created this output ASCDSVER= 'CIAO 4.2' / ASCDS version number MJD_OBS = 5.1915483396782E+04 / Modified Julian date of observation DS_IDENT= 'ADS/Sa.CXO#obs/02252' / dataset identifier REVISION= 2 / Processing version of data CHECKSUM= '8O6eAN3e1N3e8N3e' / HDU checksum updated 2010-12-03T23:31:51 DATASUM = '1721827724' / data unit checksum updated 2010-12-03T23:31:51 RAND_SKY= 5.0000000000000E-01 RAND_PI = 1.0000000000000E+00 TITLE = 'THE ORIGIN OF THE X-RAY BACKGROUND: A CHANDRA OBSERVATION OF THE HE&'CONTINUE 'RSCHEL DEEP FIELD.' / Proposal title HDUCLASS= 'OGIP ' HDUCLAS1= 'RESPONSE' HDUCLAS2= 'SPECRESP' HDUVERS = '1.1.0 ' / HDU version HDUVERS1= '1.0.0 ' / HDU version HDUVERS2= '1.1.0 ' / HDU version CHANTYPE= 'PI ' / Channel Type DETCHANS= 1070 / Number of detector channels ARFVERSN= '1992a ' / RMF version number CONTENT = 'SPECRESP' THRSHLD = 0.0000000000000E+00 / FEF contrib percentage cutoff HISTNUM = 71 HISTORY TOOL :mkwarf 2010-12-03T23:31:51 ASC00001HISTORY PARM :infile=../../acisf02252/products/spectra/fullrun_ccd0_acASC00002HISTORY CONT :isf02252_pi14-548_pass1_cl_src10.pi[WMAP] ASC00003HISTORY PARM :outfile=../../acisf02252/products/spectra/fullrun_ccd0_aASC00004HISTORY CONT :cisf02252_pi14-548_pass1_cl_src10.warf ASC00005HISTORY PARM :weightfile=../../acisf02252/products/spectra/fullrun_ccdASC00006HISTORY CONT :0_acisf02252_pi14-548_pass1_cl_src10.wfef ASC00007HISTORY PARM :spectrumfile= ASC00008HISTORY PARM :egridspec=0.3:11.0:0.01 ASC00009HISTORY PARM :pbkfile=../../acisf02252/data/aux/acisf095169021N002_pbkASC00010HISTORY CONT :0.fits.gz ASC00011HISTORY PARM :threshold=0 ASC00012HISTORY PARM :feffile=CALDB ASC00013HISTORY PARM :mskfile= ASC00014HISTORY PARM :asolfile= ASC00015HISTORY PARM :mirror=HRMA ASC00016HISTORY PARM :detsubsysmod= ASC00017HISTORY PARM :dafile=CALDB ASC00018HISTORY PARM :ardlibpar=ardlib ASC00019HISTORY PARM :geompar=geom ASC00020HISTORY PARM :clobber=yes ASC00021HISTORY PARM :verbose=0 ASC00022FEFFILE = '/opt/ciao-4.2/CALDB/data/chandra/acis/fef_pha/acisD2000-01-29fef_ph&'CONTINUE 'aN0005.fits' / FITS Embedded function file HISTORY PARM :ARDLIB Version: 0.8.4 ASC00023HISTORY PARM :File used for CALDB info: ../../acisf02252/products/specASC00024HISTORY CONT :tra/fullrun_ccd0_acisf02252_pi14-548_pass1_cl_src10.pi[WASC00025HISTORY CONT :MAP] ASC00026HISTORY PARM :Parameter file: /home/xassist/cxcds_param4/ardlib.par ASC00027HISTORY PARM :Vignetting File: /opt/ciao-4.2/CALDB/data/chandra/defaulASC00028HISTORY CONT :t/vignet/hrmaD1996-12-20vignetN0003.fits[1] ASC00029HISTORY PARM :Onaxis Area File: /opt/ciao-4.2/CALDB/data/chandra/defauASC00030HISTORY CONT :lt/axeffa/hrmaD1996-12-20axeffaN0008.fits[1] ASC00031HISTORY PARM :ACIS QE File: /opt/ciao-4.2/CALDB/data/chandra/acis/qe/aASC00032HISTORY CONT :cisD1997-04-17qeN0006.fits[1] ASC00033HISTORY PARM :ACIS Uniformity File: /opt/ciao-4.2/CALDB/data/chandra/aASC00034HISTORY CONT :cis/qeu/acisD2000-01-29qeuN0006.fits[1] ASC00035HISTORY PARM :ACIS Contamination File: /opt/ciao-4.2/CALDB/data/chandrASC00036HISTORY CONT :a/acis/contam/acisD1999-08-13contamN0005.fits[1] ASC00037HISTORY PARM :ACIS 0 Badpix File: /opt/ciao-4.2/CALDB/data/chandra/aciASC00038HISTORY CONT :s/badpix/acisD2000-11-28badpixN0003.fits[1] ASC00039HISTORY PARM :File used for CALDB info: ../../acisf02252/products/specASC00040HISTORY CONT :tra/fullrun_ccd0_acisf02252_pi14-548_pass1_cl_src10.pi[WASC00041HISTORY CONT :MAP] ASC00042HISTORY PARM :File used for CALDB info: ../../acisf02252/products/specASC00043HISTORY CONT :tra/fullrun_ccd0_acisf02252_pi14-548_pass1_cl_src10.pi[WASC00044HISTORY CONT :MAP] ASC00045HISTORY PARM :PIXLIB Version: 4.0.0 ASC00046HISTORY PARM :****** PIXLIB Parameter File ***** ASC00047HISTORY PARM :/opt/ciao-4.2/param/geom.par: ASC00048HISTORY PARM :instruments = /opt/ciao-4.2/CALDB/data/chandra/default/ASC00049HISTORY CONT :geom/telD1999-07-23geomN0005.fits(CALDB) ASC00050HISTORY PARM :aimpoints = /opt/ciao-4.2/CALDB/data/chandra/default/ASC00051HISTORY CONT :aimpts/telD1999-07-23aimptsN0002.fits(CALDB) ASC00052HISTORY PARM :tdet = /opt/ciao-4.2/CALDB/data/chandra/default/ASC00053HISTORY CONT :tdet/telD1999-07-23tdetN0001.fits(CALDB) ASC00054HISTORY PARM :sky = /opt/ciao-4.2/CALDB/data/chandra/default/ASC00055HISTORY CONT :sky/telD1999-07-23skyN0001.fits(CALDB) ASC00056HISTORY PARM :shell = /opt/ciao-4.2/CALDB/data/chandra/default/ASC00057HISTORY CONT :sgeom/telD1999-07-23sgeomN0001.fits(CALDB) ASC00058HISTORY PARM :obsfile = nowT00:00:00() ASC00059HISTORY PARM :****** PIXLIB System Configuration ****** ASC00060HISTORY PARM :Telescope = Chandra ASC00061HISTORY PARM :Focal Length (mm) = 10070.000 ASC00062HISTORY PARM :Detector = ACIS ASC00063HISTORY PARM :Focal Plane Sys. = FP-1.1 ASC00064HISTORY PARM :Tiled Detector Plane Sys. = ACIS-2.2 ASC00065HISTORY PARM :SIM Offset (mm) = (0.684 0.75 236.552) ASC00066HISTORY PARM :Aim Point(NONE) (mm) = (-0.780908 0 -233.587) ASC00067HISTORY PARM :Grating Arm = HEG ASC00068HISTORY PARM :Grating Order = 1 ASC00069HISTORY PARM :Dispersion Plane Sys. = ASC-GDP-1.1 ASC00070HISTORY PARM :Rowland Circle (mm) = 8632.48 ASC00071END >>R>%>R> ?> >?}}>>{?ȞL>{>33@>33>Q@I >Q>p@>p>\@U>\>Ǯ@X>Ǯ>AC>>A K">> =A6> =>(AlJ>(>GA_w>G>ffA>ff>A>>A^=>>B F>>HBPL>H?B45??\BL~l?\?BhF??BϮ?? =qB.+? =q? Ax? ?\)A?\)?A6??zB![?z? =B:=:? =?BLa??(BX?(?RBe?R?!GB?!G?# B?# ?&ffBOj?&ff?(BT?(?+Bf?+?.{B;?.{?0BR0?0?333B+?333?5BS&?5?8QB?8Q?:HBwM?:H?=pC?=p?@C x?@?B\CR?B\?EC6?E?GC$N9?G?J=qC,4?J=q?LC5-?L?O\)C=J?O\)?QCF1]?Q?TzCN?Tz?W =CW?W =?YC_?Y?\(Cg?\(?^RCpY~?^R?aGCx^?aG?c C{C@>{@>RC9h@>R@?\)Cu@?\)@@C@@@@C@@@AGC@AG@AC"]@A@B\C@B\@C33C!@C33@C CS@C @DzC@Dz@ECs@E@EC?@E@FffC#@Fff@G =C@G =@GCVK@G@HQC;@HQ@HC~@H@ICe@I@J=qCp@J=q@JHC&@JH@KC@K@L(Ci@L(@LCl@L@MpC@Mp@N{C,@N{@NRC@NR@O\)C@O\)@PC@P@PCG@P@QGCì@QG@QC?@Q@R\CA@R\@S33C @S33@S CXG@S @TzC@Tz@UC@U@UC1@U@VffC8@Vff@W =Cu@W =@WC@W@XQC@XQ@XC'2@X@YCV@Y@Z=qC@Z=q@ZHC@ZH@[C>@[@\(CYu@\(@\Ct@\@]pC@]p@^{C@^{@^RC@^R@_\)CRN@_\)@`C)@`@`C@`@aGC@aG@aCD8@a@b\Co@b\@c33C@c33@c C@c @dzC@dz@eC*3@e@eCL@e@fffCm@fff@g =C:@g =@gC@g@hQC@hQ@hC @h@iCB @i@j=qCb@j=q@jHCw@jH@kC;@k@l(C@l(@lC@l@mpC @mp@n{C@n{@nRC @nR@o\)C*2@o\)@pC3@p@pCA@p@qGCQ@qG@qCb@q@r\Cv@r\@s33CY@s33@s CN@s @tzCt@tz@uC@u@uC@u@vffCv@vff@w =C#@w =@wC@w@xQC3@xQ@xC~@x@yC@y@z=qC@z=q@zHC@zH@{C.@{@|(C9@|(@|CZ@|@}pC{@}p@~{C(@~{@~RC@~R@\)C@\)@Cg@@QCn@Q@C#@@CA@@GC%m@G@C K@@CP@@=qC@=q@\C@\@HCЗ@H@33Cz@33@C@@ C}@ @(C@(@zCzS@z@C`@@CIf@@pC5@p@C @@{C 0@{@ffC@ff@RCچ@R@ =C@ =@\)C@\)@CP@@Ch@@QCK3@Q@C.@@C-@@GC@G@C@@C@@=qCu @=q@\CF@\@HC"@H@33C0@33@CW@@ Cv@ @(CM@(@zC&~@z@Cj@@C@@pC}@p@CP5@@{C @{@ffC@ff@RC@R@ =Cs@ =@\)C/Z@\)@C2@@C @@QC@Q@CMJ@@C @@GC}@G@Cv@@CG:@@=qC@=q@\CT@\@HCM@H@33C@33@C@@ C\@ @(C#@(@zC@z@Cg@@C @@pC6@p@C;z@@{C@{@ffCx@ff@RCH@R@ =C@ =@\)C@\)@C*@@C@@QCo6@Q@C @@CQ@@GCG]@G@Cw@@C.@@=qC @=q@\C@\@HC>@H@33C&@33@C|W@@ C@ @(C@(@zC,@z@Cȸ@@CZ@@pCJ@p@CY@@{Cb@{@ffCc@ff@RC@R@ =Ck@ =@\)Cq@\)@Cm@@C@@QCe@Q@C.@@CV@@GCB@G@CM@@Cz@@=qC?@=q@\C@\@HC(@H@33CF@33@C@@ C@ @(C R@(@zC@z@Cd@@Cq@@pC@p@CL@@{C\@{@ffC5u@ff@RC@R@ =Cb@ =@\)Ch@\)@Cl@@CM@@QC@Q@C @@C@@GC@G@CW@@C@@=qC*@=q@\Ce@\@HC%@H@33Cb@33@C@@ C0@ @(CC@(@zC@z@CL@@C@@pC@p@C@@{C@{@ffCe@ff@RC@R@ =C0"@ =@\)CD@\)@C@@Cp[@@QC"@Q@C4@@C?@@GC @G@C@@CS@@=qC~3@=q@\C}@\@HC|[@H@33C{8p@33@Cz@@ Cx5@ @(Cwm@(@zCv@z@CuU@@Ct@@pCs~;@p@CrsP@@{Cqf@{@ffCpZ@ff@RCoV@R@ =CnY@ =@\)CmQ@\)@Cl=@@Ck)@@QCj+@Q@Ci6@@Ch@@GCf@G@Ce@@Cd҈@@=qCcˢ@=q@\CbM@\@HCa6@H@33C`@33@C_%@@ C^k@ @(C];@(@zC\^@z@C[~@@CZF@@pCY@p@CX@@{CWK@{@ffCV{@ff@RCUur@R@ =CTg@ =@\)CSYf@\)@CR?@@CQ&E@@QCP@Q@CO @@CN@@GCL@G@CKK@@CJ@@=qCIT@=q@\CH@\@HCGu@H@33CF@33@ÅCE6@Å@ CD@ @(CCR@(@zCB@z@CAx@@C@nI@@pC?t@p@C>{@@{C=_9@{@ffC@@ B-@ @(BU@(@zB@z@B@@BI@@pBV@p@B@@{BJ@{@ffB@ff@RBf@R@ =B@ =@\)BH=@\)@B@@B@@QBy@Q@BZc@@B;@@GB @G@B@@Bˋ@@=qB@=q@\B}2@\@HB{@H@33Bxc@33@Bu@@ Bs*@ @(Bq֝@(@zBo@z@Bm}@@Bk@@pBi@p@Bgx@@{Bes@{@ffBcN@ff@RBa@R@ =B_X@ =@\)B]&@\)@B\H@@BZ6@@QBXb@Q@BV@@BT6@@GBR=@G@BP@@BO@@=qBMiN@=q@\BKB@\@HBJ @H@33BHv@33@BF"@@ BE @ @(BCR@(@zBAB@z@B@[@@B>@@pB=Q8@p@B;ȵ@@{B:MG@{@ffB8@ff@RB7g@R@ =B6@ =@\)B4^@\)@B32u@AB1AA(B0X!A(AQB/AQAzB-AzAB,hAAB+AAB)ߛAAB(xAAGB'AGApB&Y-ApAB%AAB#_AAB"1AA{B!tA{A=qB UA=qAffB6AffA\B"A\ARBARAHBpAHA =B A =A33B}A33A\)BIA\)ABNAABWAA B|A AB~AA(BA(AQBZAQAzBAzABAABAABAAB AAGB 8AGApB :ApAB A GA pAȸA pA A4eA A AŷA A AIA A{AkA{A=qA{A=qAffAjAffA\AtA\ARAARAHA\AHA =AA =A33A:A33A\)A(6A\)AAAAA1AA AA AAAA(APA(AQAAQAzA)AzAARAAAbAAAAAAAAGAgAGApAApAAY;AAAڬAAAc"AA{AA{A=qA&A=qAffAXA\ARApARAHAnEFAHA =AkcA =A33AigA33A\)AfA\)AAd~HAAAb VAA A_A AA]YAA(A[A(AQAXFAQAzAVSAzAASAAAQ~AAAO%AAAL-AAGAJzAGApAH%ApAAE AAACiAAAA%+AA{A>A{A=qA<:A=qAffA:nAffA\A8dA\ARA6EARAHA35AHA =A1A =A33A/gA33A\)A-+A\)AA*AAA(AA A&A AA$^"AA(A"(jA(AQAAQAzA/AzAA__AAA&AAAoAAA~AAGAϾAGApAApAAAAA ;AAA wAA{AcA{A=qAJA=qAffA4oAffA\A9A\ARAYARAH@AHA =@PA =A33@A33A\)@kA\)A@*>AA@b^AA @6A A @,A A (@ߏ:A (A Q@zA QA z@QA zA @ԜA A @A A @HA A!@ɥPA!A!G@&A!GA!p@;A!pA!@v A!A!@2A!A!@%A!A"{@.A"{A"=q@A"=qA"ff@\A"ffA"\@ A"\A"R@bfA"RA"H@KA"HA# =@~A# =A#33@A#33A#\)@A#\)A#@ A#A#@A#A# @A# A$@nA$A$(@e:A$(A$Q@n~A$QA$z@zA$zA$@|A$A$@vA$A$@pA$A%@kG^A%A%G@eǫA%GA%p@_A%pA%@YbA%A%@SA%A%@M˲A%A&{@G*A&{A&=q@B\A&=qA&ff@>4A&ffA&\@9kA&\A&R@4A&RA&H@/A&HA' =@*HA' =A'33@%fA'33A'\)@ A'\)A'@\A'A'@A'A' @SA' A(@ ۴A(A((@ YA((A(Q@;A(QA(z@FA(zA(?AA(A(?A(A(?A(A)?!A)A)G?֯fA)GA)p?:3A)pA)?A)A)?=A)A)?q A)A*{?_A*{A*=q?bA*=qA*ff?lA*ffA*\?A*\A*R?UnA*RA*H?A*HA+ =?U8A+ =A+33?A+33A+\)?\A+\)A+?=A+A+?"A+A+ ?x\#A+ A,?pzA,A,(?i]A,(A,Q?czjA,QA,z?]uA,zA,?WR A,A,?Q4A,A,?KP8A,A-?EA-A-G??A-GA-p?:JA-pA-?5bA-A-?0.A-A-?+hA-A.{?&A.{A.=q?"*A.=qA.ff?A.ffA.\?0A.\A.R?A.RA.H?A.HA/ =? A/ =A/33?A/33A/\)?n%A/\)A/?OA/A/>kA/A/ >[A/ A0>S