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 ' / ASCDM block name 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. ORIGIN = 'ASC ' / Source of FITS file CREATOR = 'mkarf v0.6.2-0' / Program creating this file MJD_OBS = 5.4144753597041E+04 / Modified Julian date of observation DS_IDENT= 'ADS/Sa.CXO#obs/06720' / dataset identifier CHECKSUM= 'eiZIhgW9egWGegW9' / HDU checksum updated 2011-06-17T15:31:10 DATASUM = ' ' / data unit checksum updated 2011-03-24T06:46:16 DATE = '2011-06-17T15:31:10' / Date and time of file creation DATE-OBS= '2007-02-13T18:05:10' / Observation start date DATE-END= '2007-02-13T23:48:20' / 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 DETNAM = 'ACIS-0 ' / ACIS-I0 FILTER = ' ' GRATING = 'NONE ' CYCLE = 'P ' / events from which exps? Prim/Second/Both SIM_X = -7.8090834371673E-01 / [mm] SIM offset SIM_Y = 0.0000000000000E+00 / [mm] SIM offset SIM_Z = -2.3358743446083E+02 / [mm] SIM offset TSTART = 2.8777711078435E+08 / Observation start time TSTOP = 2.8779770098531E+08 / Observation end time MISSION = 'AXAF ' / Mission TELESCOP= 'CHANDRA ' / Telescope Used INSTRUME= 'ACIS ' / Instrument OBS_ID = '6720 ' / Observation id SEQ_NUM = '500667 ' / Sequence number 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' / Imaging ARF HDUNAME = 'SPECRESP' / ASCDM block name CONTENT = 'SPECRESP' HDUVERS = '1.1.0 ' HDUCLASS= 'OGIP ' HDUCLAS1= 'RESPONSE' HDUCLAS2= 'SPECRESP' HDUVERS1= '1.0.0 ' / Obsolete Keyword HDUVERS2= '1.1.0 ' / Obsolete Keyword ARFVERSN= '1992a ' / Obsolete Keyword TTYPE1 = 'ENERG_LO' / Energy TFORM1 = '1E ' / format of field TUNIT1 = 'keV ' TLMIN1 = 0.0000000E+00 TLMAX1 = 2.0000000E+01 TTYPE2 = 'ENERG_HI' / Effective Area TFORM2 = '1E ' / format of field TUNIT2 = 'keV ' TLMIN2 = 0.0000000E+00 TLMAX2 = 2.0000000E+01 TTYPE3 = 'SPECRESP' / Effective Area TFORM3 = '1E ' / format of field TUNIT3 = 'cm**2 ' 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. ORIGIN = 'ASC ' / Source of FITS file CREATOR = 'mkarf v0.6.2-0' / Program creating this file ASCDSVER= 'CIAO 4.3' / ASCDS version number MJD_OBS = 5.4144753597041E+04 / Modified Julian date of observation DS_IDENT= 'ADS/Sa.CXO#obs/06720' / dataset identifier REVISION= 2 / Processing version of data CHECKSUM= 'G6HAG4F6G4FAG4F5' / HDU checksum updated 2011-06-17T15:31:10 DATASUM = '338434526' / data unit checksum updated 2011-06-17T15:31:10 RAND_SKY= 5.0000000000000E-01 RAND_PI = 1.0000000000000E+00 EQUINOX = 2.0000000000000E+03 / default DATE = '2011-06-17T15:31:10' / Date and time of file creation DATE-OBS= '2007-02-13T18:05:10' / Observation start date OBS_MODE= 'POINTING' / Observation mode DATE-END= '2007-02-13T23:48:20' / 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= 2.8218334829471E+08 / Basic Time offset (s) DATACLAS= 'OBSERVED' / default BTIMRATE= 2.5625001206865E-01 / Basic Time clock rate (s / VCDUcount) BTIMDRFT= 4.9904962345109E-18 / Basic Time clock drift (s / VCDUcount^2) FILTER = 'NONE ' / QE includes all filters RESPFILE= '0.3:11.0:0.01' / RMF File ASPFILE = '../../acisf06720/products/aux/asphist_0.fits.gz' / Aspect Histogram FBTIMCORR= 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 / [mm] SIM offset SIM_Y = 0.0000000000000E+00 / [mm] SIM offset SIM_Z = -2.3358743446083E+02 / [mm] SIM offset 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 = 2.8777711078435E+08 / Observation start time GRATING = 'NONE ' / Grating DETNAM = 'ACIS-0 ' / ACIS-I0 RA_PNT = 2.7256040387334E+02 / Pointing RA DEC_PNT = -1.9364404867523E+01 / Pointing Dec ROLL_PNT= 8.8045787970818E+01 / Pointing Roll RA_TARG = 2.7255833300000E+02 / Observer's specified target RA DEC_TARG= -1.9368611000000E+01 / Observer's specified target Dec DEFOCUS = 1.4398718632593E-03 / SIM defocus (mm) RA_NOM = 2.7256040387334E+02 / Nominal RA DEC_NOM = -1.9364404867523E+01 / Nominal Dec ROLL_NOM= 8.8045787970818E+01 / Nominal Roll TSTOP = 2.8779770098531E+08 / 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 CTI_APP = 'PPPPPBPBPP' MISSION = 'AXAF ' / Mission TELESCOP= 'CHANDRA ' / Telescope Used INSTRUME= 'ACIS ' / Instrument FRACEXPO= 9.6923027142872E-01 / Effective fractional exposure 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 TITLE = 'Using Chandra to reveal the nature of Galactic VHE particle acceler&'CONTINUE 'ation sites discovered by H.E.S.S.' / Proposal title OBSERVER= 'Dr. Gerd Puehlhofer' / Principal investigator OBJECT = 'HESS J1809-193' / Source name OBS_ID = '6720 ' / Observation id SEQ_NUM = '500667 ' / Sequence number ONTIME = 1.9139184274673E+04 / [s] Sum of GTIs ONTIME0 = 1.9139184274673E+04 / [s] Sum of GTIs LIVETIME= 1.8896832399154E+04 / [s] Livetime LIVTIME0= 1.8896832399154E+04 / [s] Livetime EXPOSURE= 1.8896823991984E+04 / [secs] Total exposure time EXPOSUR0= 1.8896832399154E+04 / [s] Exposure time DTCOR = 9.8733739787229E-01 / Dead time correction ASPTYPE = 'KALMAN ' FP_TEMP = 1.5344601440000E+02 / [K] Focal Plane Temperature RADESYS = 'ICRS ' / default HISTORY ----------------------------------------------------------------- HISTORY MKARF Processing History HISTORY ----------------------------------------------------------------- HISTORY Startup Directory: /xassist/data/pipeline4/chandra/6720/acisf06720/produHISTORY cts HISTORY Cmd Line: mkarf @@/tmp/tmp3qZ1zj.par mode=hl HISTORY Parameter file used: /tmp/tmp3qZ1zj.par HISTORY Detector Mask File: ../../acisf06720/data/aux/acisf06720_000N002_msk1.fiHISTORY ts.gz HISTORY Source SKY position: (3838.27,4661.96) HISTORY ---------------------------------------------------------------------- HISTORY ARDLIB History Records HISTORY ---------------------------------------------------------------------- HISTORY ARDLIB Version: 0.8.5 HISTORY File used for CALDB info: ../../acisf06720/products/events/fullrun_ccd0_HISTORY acisf06720_pi14-548_pass1_cl_src1_src.evt.gz HISTORY Parameter file: /opt/ciao-4.3/param/ardlib.par HISTORY ACIS QE File: /opt/ciao-4.3/CALDB/data/chandra/acis/qe/acisD1997-04-17qeHISTORY N0006.fits[1] HISTORY ACIS Uniformity File: /opt/ciao-4.3/CALDB/data/chandra/acis/qeu/acisD200HISTORY 0-01-29qeuN0006.fits[1] HISTORY ACIS Contamination File: /opt/ciao-4.3/CALDB/data/chandra/acis/contam/acHISTORY isD1999-08-13contamN0006.fits[1] HISTORY ACIS 0 Badpix File: /opt/ciao-4.3/CALDB/data/chandra/acis/badpix/acisD20HISTORY 00-11-28badpixN0003.fits[1] HISTORY Vignetting File: /opt/ciao-4.3/CALDB/data/chandra/default/vignet/hrmaD19HISTNUM = 22 HISTORY 96-12-20vignetN0003.fits[1] HISTORY Onaxis Area File: /opt/ciao-4.3/CALDB/data/chandra/default/axeffa/hrmaD1HISTORY 996-12-20axeffaN0008.fits[1] HISTORY ---------------------------------------------------------------------- HISTORY ---------------------------------------------------------------------- HISTORY PIXLIB History Records HISTORY ---------------------------------------------------------------------- HISTORY PIXLIB Version: 4.0.0 HISTORY ****** PIXLIB Parameter File ***** HISTORY /opt/ciao-4.3/param/geom.par: HISTORY instruments = /opt/ciao-4.3/CALDB/data/chandra/default/geom/telD1999-07HISTORY -23geomN0006.fits(CALDB) HISTORY aimpoints = /opt/ciao-4.3/CALDB/data/chandra/default/aimpts/telD1999-HISTORY 07-23aimptsN0002.fits(CALDB) HISTORY tdet = /opt/ciao-4.3/CALDB/data/chandra/default/tdet/telD1999-07HISTORY -23tdetN0001.fits(CALDB) HISTORY sky = /opt/ciao-4.3/CALDB/data/chandra/default/sky/telD1999-07-HISTORY 23skyN0002.fits(CALDB) HISTORY shell = /opt/ciao-4.3/CALDB/data/chandra/default/sgeom/telD1999-0HISTORY 7-23sgeomN0001.fits(CALDB) HISTORY obsfile = nowT00:00:00() HISTORY ****** PIXLIB System Configuration ****** HISTORY Telescope = AXAF HISTORY Focal Length (mm) = 10070.000 HISTORY Detector = ACIS HISTORY Focal Plane Sys. = FP-1.1 HISTORY Tiled Detector Plane Sys. = ACIS-2.2 HISTORY SIM Offset (mm) = (0.684 0.75 236.552) HISTORY Aim Point(NONE) (mm) = (-0.780908 0 -233.587) HISTORY Grating Arm = HEG HISTORY Grating Order = 1 HISTORY Dispersion Plane Sys. = ASC-GDP-1.1 HISTORY Rowland Circle (mm) = 8632.48 HISTORY ---------------------------------------------------------------------- HISTORY TOOL :mkarf 2011-06-17T15:31:10 ASC00001HISTORY PARM :asphistfile=../../acisf06720/products/aux/asphist_0.fitsASC00002HISTORY CONT :.gz ASC00003HISTORY PARM :outfile=../../acisf06720/products/spectra/fullrun_ccd0_aASC00004HISTORY CONT :cisf06720_pi14-548_pass1_cl_src1.arf ASC00005HISTORY PARM :sourcepixelx=3838.2677 ASC00006HISTORY PARM :sourcepixely=4661.9577 ASC00007HISTORY PARM :engrid=0.3:11.0:0.01 ASC00008HISTORY PARM :obsfile=../../acisf06720/products/events/fullrun_ccd0_acASC00009HISTORY CONT :isf06720_pi14-548_pass1_cl_src1_src.evt.gz ASC00010HISTORY PARM :pbkfile=../../acisf06720/data/aux/acisf287777846N001_pbkASC00011HISTORY CONT :0.fits.gz ASC00012HISTORY PARM :dafile=CALDB ASC00013HISTORY PARM :mirror=HRMA ASC00014HISTORY PARM :detsubsys=ACIS-I0 ASC00015HISTORY PARM :grating=NONE ASC00016HISTORY PARM :maskfile=../../acisf06720/data/aux/acisf06720_000N002_msASC00017HISTORY CONT :k1.fits.gz ASC00018HISTORY PARM :ardlibparfile=ardlib.par ASC00019HISTORY PARM :geompar=geom ASC00020HISTORY PARM :verbose=0 ASC00021HISTORY PARM :clobber=yes ASC00022END >>RR> =֕4> >>M>>{>GR>{>33? >33>Q?K*;>Q>p?>p>\?>\>Ǯ@>Ǯ>@0K9>>@2&>> =@w{> =>(@P>(>G@6>G>ffA >>ff>A(v>>AK=>>AsG>>HA>H?A*??\A?\?A??33CG?33?zCc?z?C%?? =CnY? =?QD{k?Q?D:??HD?H?(D?(?pDX?p?RD?R?D??GD[?G?\D/?\? D}? ?D4??ffD?ff?ǮCp?Ǯ?C׊??=qC?=q?˅C F?˅?C??{Cl3?{?\)CS?\)?УCC?У?C??33C0S?33?zC?z?Cl#?? =CG@333@3 C{@3 @4zC@4z@5C;U@5@5C @5@6ffCrE@6ff@7 =C?@7 =@7C7!@7@8QC,@8Q@8Cʰ@8@9C@9@:=qC;x@:=q@:HC@:H@;C[@;@<(Cw(@<(@{CN@>{@>RC @>R@?\)CK~@?\)@@Co@@@@C|J@@@AGC@AG@AC|U@A@B\C@B\@C33CC&@C33@C C@C @DzC@Dz@ECJ@E@EC;@E@FffCv@Fff@G =CO@G =@GC@G@HQC@HQ@HC@H@IC @I@J=qC$@J=q@JHC. @JH@KCq@K@L(CF@L(@LC@33@C.@@ C!\@ @(C@(@zC@z@C.@@C @@pC@p@C@@{C@{@ffCs@ff@RCZ@R@ =C>@ =@\)C#@\)@C\@@C@@QC:@Q@C5@@C(@@GCn@@G@CGP@@C"F@@=qC@=q@\C˰@\@HC@H@33C@33@CR.@@ C@ @(Cӊ@(@zCi@z@CK@@CR`@@pC@p@C@@{C@{@ffCt@ff@RC:'@R@ =C@ =@\)C@\)@C|9@@CG\@@QC @Q@C@@C@@GCL@G@C @@C@@=qClp@=q@\C@\@HCȫ@H@33C{@33@C*@@ Cղ@ @(Cz#@(@zC+@z@C݈@@C@@pC@p@CQ@@{C`@{@ffC@ff@RCo@R@ =CW@ =@\)C@\)@C@@C=@@QC@Q@Cw@@C@@GCs@G@CS@@C"@@=qCu@=q@\C@\@HC@H@33CK@33@C@@ Cl@ @(C@(@zC@z@C,@@C@@pC>@p@C@@{C?n@{@ffCm@ff@RCGB@R@ =C@ =@\)CN@\)@Cˀ@@CH@@@QCZ@Q@C9@@C@@GC,@G@C@@Cm@@=qC1@=q@\C *@\@HC~@H@33C@33@Ch@@ C;@ @(Cb@(@zC@z@CW@@C:@@pC:@p@C@@{C @{@ffC,@ff@RC@R@ =Cv@ =@\)C@\)@CO@@Ci@@QC!@Q@C@@CG@@GCdU@G@C̟@@C7@@=qC@=q@\C@\@HC}@H@33Ck@33@CQ@@ CW@ @(C'@(@zC@z@C7@@CK(@@pCK@p@C)@@{C@{@ffC@ff@RC+@R@ =C@ =@\)CGL@\)@Cw2@@C~`7@@QC}6@Q@C{@@Czg@@GCyj@G@Cx@@Cw@@=qCvq@=q@\CuIo@\@HCt.@H@33Cs@33@Cq@@ Cp޼@ @(Co@(@zCn@z@Cm@@Cl@@pCk{@p@Cjp@@{Ci}@{@ffChw@ff@RCgx9@R@ =Cf}@ =@\)CezW@\)@Cdj0@@CcZ@@QCbS@Q@CaUA@@C`Wc@@GC_?@G@C^(@@C]k@@=qC\$@=q@\C[ }@\@HCY@H@33CXM@33@CW@@ CV @ @(CU@(@zCT(@z@CS@@CR֧@@pCQ@p@CQ)t@@{CO@{@ffCNH@ff@RCM@R@ =CL@ =@\)CK@\)@CJk@@CIPC@@QCH;e@Q@CG-@@CF@@GCEd@G@CD@@CB@@=qCA@=q@\C@@\@HC?@H@33C>@33@ÅC=@Å@ C<@ @(C;6@(@zC:k @z@C9I@@C89@@pC78h@p@C68@@{C5'@{@ffC3@ff@ƸRC2V@ƸR@ =C1@ =@\)C0@\)@ǮC/Ԅ@Ǯ@C.@@QC-@Q@ȣC,@ȣ@C+k@@GC*_@G@əC)T@ə@C(L@@=qC'E^@=q@ʏ\C&?@ʏ\@HC%3R@H@33C$(@33@˅C#@˅@ C!@ @(C Ժ@(@zCQ@z@C@@C@@pC[@p@Cŗ@@{CF@{@ffC@ff@θRC3@θR@ =Cr@ =@\)Cby@\)@ϮCG;@Ϯ@C-@@QC!Q@Q@УC#-@У@C%@@GC @G@љC/@љ@C @@=qC @=q@ҏ\C @ҏ\@HC @H@33C @33@ӅC@Ӆ@ C_@ @(C@(@zC@z@C@@C@@pC@p@CP@@{CH@{@ffB.@ff@ָRB(@ָR@ =B7@ =@\)BHT@\)@׮BD@׮@BC@@QBK@Q@أBc@أ@B}^@@GBk@G@ٙB\C@ٙ@B^@@=qBw@=q@ڏ\B@ڏ\@HB㷖@H@33B@33@ۅB@ۅ@ Bp@ @(B3@(@zBD@z@BX@@Bր@@pBԹ@p@B@@{B,2@{@ffBg@ff@޸RBͨ@޸R@ =B@ =@\)B;f@\)@߮Bȑ1@߮@B@@QB,@Q@B]@@B@@GB@G@ᙚB4X@ᙚ@B@@=qB@=q@\BO@\@HBf@H@33BH@33@Bc @@ B@ @(B$%@(@zB@z@B@@Ba'@@pBm@p@B@@{B@{@ffB@w@ff@RBf@R@ =Bqo@ =@\)B@\)@B@@B*@@QB@Q@BY@@Bk@@GB{@G@陚B@陚@B;@@=qB;@=q@\B(@\@HB@H@33B+ @33@B*@@ BlT@ @(B @(@zBǂ@z@Bo@@B;8@@pB@p@B;@@{B@{@ffBe0@ff@RB=@R@ =B Z@ =@\)Bڣ@\)@BI]@@B|r@@QBz@Q@Bx@@Bv@@GBti@G@Br@@@BpQ@@=qBn@=q@\BlU@\@HBjk @H@33Bg@33@Be @@ Bc@ @(Bbi@(@zB`/@z@B^KV@@B\~@@pBZɸ@p@BY@@{BWC%@{@ffBUq@ff@RBS@R@ =BQ@ =@\)BPA`@\)@BN@@BM@@QBKpv@Q@BIȊ@@BH @@GBFe@G@BD"@@BC@@=qBA@=q@\B@+m@\@HB>?@H@33B=*@33@B;&@@ B:@ @(B8q@(@zB7.@z@B5@@B4y@@pB3@p@B1@@{B0K#@{@ffB.a@ff@RB-@R@ =B,_@ =@\)B+O@\)@B)@AB(iAA(B'A(AQB%߅AQAzB$AzAB#cAAB"&1AAB AABAAGBAGApB~ApABxAABK&AABAA{B A{A=qBA=qAffBAffA\B7A\ARBARAHBFAHA =BHA =A33BA33A\)BA\)ABJAABAA B A AB AA(B A(AQB )AQAzB ~AzAB_AABAABARAHAgAHA =AA =A33AA33A\)AzA\)AA:AAA/AA AqA AAAA(AMA(AQAmAQAzAW[AzAA AAAHjAAAA{A=qAVlA=qAffAqAffA\AzA\ARAv2ARAHAuAHA =AA =A33AtA33A\)A A\)AA ZAAA ޤAA AA AAHAA(AoA(AQAfAQAzAAzA@AA@AA@SAA@4AAG@2AGAp@MApA@AA@夝AA@JAA{@jA{A=q@ۘHA=qAff@@0AffA\@#A\AR@?ARAH@^9AHA =@̍}A =A33@ɾA33A\)@ݔA\)A@AA@\AA @(A A @[A A (@tA (A Q@vA QA z@|A zA @lA A @f A A @bzA A!@bA!A!G@dA!GA!p@DA!pA!@(kA!A!@@A!A!@ /A!A"{@'A"{A"=q@/A"=qA"ff@:A"ffA"\@RA"\A"R@yA"RA"H@NA"HA# =@A# =A#33@rA#33A#\)@z4A#\)A#@txA#A#@nA#A# @iA# A$@dzzA$A$(@_wA$(A$Q@ZA$QA$z@U[A$zA$@P A$A$@K*A$A$@FA$A%@B+A%A%G@=DA%GA%p@8A%pA%@35A%A%@.rA%A%@)KA%A&{@$˻A&{A&=q@ A&=qA&ff@VA&ffA&\@A&\A&R@2A&RA&H@A&HA' =@ A' =A'33@A'33A'\)@A'\)A'@A'A'?QA'A' ?HA' A(?,A(A((?9A((A(Q?;TA(QA(z?²A(zA(?A(A(?gA(A(?.A(A)?-A)A)G?5TA)GA)p? A)pA)?A)A)?A)A)? A)A*{?=A*{A*=q?LA*=qA*ff?aA*ffA*\?SA*\A*R?9A*RA*H?wA*HA+ =?oA+ =A+33?hW&A+33A+\)?a#;A+\)A+?ZUA+A+?SA+A+ ?M=A+ A,?F4A,A,(?@A,(A,Q?;;A,QA,z?6A,zA,?1zA,A,?,zA,A,?'{A,A-?#+QA-A-G?A-GA-p?9A-pA-?A-A-?^A-A-? A-A.{? oA.{A.=q?A.=qA.ff?!A.ffA.\>DA.\A.R>A.RA.H>wA.HA/ =>A/ =A/33>iA/33A/\)>گKA/\)A/>QA/A/>A/A/ >tA/ A0>