FILE = region.fits HDU 1 IMAGE Image Int4(128x128) SIMPLE = T / file does conform to FITS standard BITPIX = 32 / number of bits per data pixel NAXIS = 2 / number of data axes NAXIS1 = 128 / length of data axis 1 NAXIS2 = 128 / length of data axis 2 EXTEND = T / FITS dataset may contain extensions COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H HDUCLASS= 'ogip ' / Format conforms to OGIP/GSFC conventions HDUCLAS1= 'IMAGE ' / Extension contains an image HDUCLAS2= 'ALL ' ORIGIN = 'NASA/GSFC' / origin of fits file CREATOR = 'extractor v4.84' / Extractor REVISION= 2 ASCDSVER= 'R4CU5UPD12.1' / ASCDS version number DATE = '2008-06-20T16:49:07' / file creation date (YYYY-MM-DDThh:mm:ss UT) DATE-OBS= '2000-03-26T00:20:55' / Start date of observations DATE-END= '2000-03-27T04:40:34' / End date of observations TIMESYS = 'TT ' / time measured from MJDREF = 5.081400000000000E+04 / MJD reference day TIMEZERO= 0.0000000000000E+00 / Clock correction TIMEUNIT= 's ' / unit for time keywords TIMEREF = 'LOCAL ' / reference time TASSIGN = 'SATELLITE' / Time assigned by clock CLOCKAPP= T / default TIERRELA= 1.0000000000000E-09 / default TIERABSO= 1.0000000000000E-03 / default TIMVERSN= 'ASC-FITS-2' / Timing system definition TSTART = 7.041840145661506E+07 / time start TSTOP = 7.051835985670815E+07 / time stop TIMEPIXR= 5.0000000000000E-01 / default TIMEDEL = 3.2410400000000E+00 / Time resolution of data (in seconds) MISSION = 'AXAF ' / Mission TELESCOP= 'CHANDRA ' / Telescope (mission) name INSTRUME= 'ACIS ' / Instrument name DETNAM = 'ACIS-235678' / Detector GRATING = 'NONE ' / Grating OBJECT = 'M101 ' / Name of observed object TITLE = 'M101: DIFFUSE EMISSION, EXTENDED OBJECTS AND POINT SOURCES' / Proposa OBSERVER= 'DR. STEVEN SNOWDEN' / Principal investigator OBS_ID = '934 ' / Observation id SEQ_NUM = '600111 ' / Sequence number SIM_X = -6.8282252473119E-01 / SIM focus pos (mm) SIM_Y = 0.0000000000000E+00 / SIM orthogonal axis pos (mm) SIM_Z = -1.9014006604987E+02 / SIM translation stage pos (mm) DEFOCUS = 1.4449365687057E-03 / SIM defocus (mm) FOC_LEN = 1.0061620000000E+04 / HRMA focal length (mm) OBS_MODE= 'POINTING' / Observation mode DATAMODE= 'FAINT ' / Datamode READMODE= 'TIMED ' / Read mode CYCLE = 'P ' / events from which exps? Prim/Second/Both RA_NOM = 2.107801525309000E+02 / Right Ascension of target (deci. deg) DEC_NOM = 5.436679130448800E+01 / Declination of target (deci. deg) ROLL_NOM= 1.5041516845240E+02 / Nominal Roll RA_TARG = 2.1079375000000E+02 / Observer's specified target RA DEC_TARG= 5.4359667000000E+01 / Observer's specified target Dec EQUINOX = 2.000E+03 / Equinox of celestial coord system RADECSYS= 'ICRS ' / celestial coord system DATACLAS= 'OBSERVED' / default STARTMJF= 97308 / Major frame ctr value at start of data STARTMNF= 38 / Start minor frame ctr at start of data STOPMJF = 100399 / Major frame ctr value at stop of data STOPMNF = 95 / Stop minor frame ctr at end of data ACSYS1 = 'CHIP:AXAF-ACIS-1.0' / reference for chip coord system ACSYS2 = 'TDET:AXAF-ACIS-2.2' / reference for tiled detector coord system ACSYS3 = 'DET:ASC-FP-1.1' / reference for focal plane coord system ACSYS4 = 'SKY:ASC-FP-1.1' / reference for sky coord system GAINFILE= '/data/CALDB/data/chandra/acis/bcf/gain/acisD2000-01-29gainN0001.fits' GRD_FILE= '/home/ascds/DS.rap/data/asca_grades.fits' CORNERS = 2 / num adjacent side pix > threshold to include co GRADESYS= 'ASCA ' / grade system: ASCA, ACIS, or USER FIRSTROW= 1 / Index of first row of CCD (sub)array readout NROWS = 1023 / Number of rows in (sub)array readout EXPTIME = 3.2000000000000E+00 / [s] commanded exposure time (s) ONTIME2 = 9.9506561785817E+04 / [s] [s] Sum of GTIs LIVTIME2= 9.8246549784827E+04 / [s] [s] Ontime multiplied by DTCOR EXPOSUR2= 9.8246549784827E+04 / [s] [s] Total exposure time, with all known cor ONTIME3 = 9.9507665705368E+04 / [s] [s] Sum of GTIs LIVTIME3= 9.8247639725884E+04 / [s] [s] Ontime multiplied by DTCOR EXPOSUR3= 9.8247639725884E+04 / [s] [s] Total exposure time, with all known cor ONTIME5 = 9.9510742186502E+04 / [s] [s] Sum of GTIs LIVTIME5= 9.8250677250761E+04 / [s] [s] Ontime multiplied by DTCOR EXPOSUR5= 9.8250677250761E+04 / [s] [s] Total exposure time, with all known cor ONTIME6 = 9.9510947276801E+04 / [s] [s] Sum of GTIs LIVTIME6= 9.8250879744083E+04 / [s] [s] Ontime multiplied by DTCOR EXPOSUR6= 9.8250879744083E+04 / [s] [s] Total exposure time, with all known cor ONTIME7 = 9.9504219465375E+04 / [s] [s] Sum of GTIs LIVTIME7= 9.8244237124257E+04 / [s] [s] Ontime multiplied by DTCOR EXPOSUR7= 9.8244237124257E+04 / [s] [s] Total exposure time, with all known cor ONTIME8 = 9.9503977395833E+04 / [s] [s] Sum of GTIs LIVTIME8= 9.8243998119944E+04 / [s] [s] Ontime multiplied by DTCOR EXPOSUR8= 9.8243998119944E+04 / [s] [s] Total exposure time, with all known cor ONTIME = 9.951455727793276E+04 / On-source time LIVETIME= 9.825444528487051E+04 / Deadtime corrected on-source time EXPOSURE= 9.825444528487051E+04 / Exposure time DTCOR = 9.8733739787229E-01 / Dead time correction CALDBVER= ' 1.8.1 ' CONTENT = 'IMAGE ' / image file HDUCLAS3= ' ' DSTYP1 = 'CCD_ID ' / Data subspace descriptor: name DSVAL1 = '3:3 ' / Data subspace descriptor: value DSFORM1 = 'I ' / Data subspace descriptor: datatype 2DSVAL1 = '5:5 ' / Data subspace descriptor: value 3DSVAL1 = '6:6 ' / Data subspace descriptor: value 4DSVAL1 = '8:8 ' / Data subspace descriptor: value DSTYP2 = 'GRADE ' / Data subspace descriptor: name DSVAL2 = '0:0,2:2,3:3,4:4,6:6' / Data subspace descriptor: value DSFORM2 = 'I ' / Data subspace descriptor: datatype 2DSVAL2 = '0:0,2:2,3:3,4:4,6:6' / Data subspace descriptor: value 3DSVAL2 = '0:0,2:2,3:3,4:4,6:6' / Data subspace descriptor: value 4DSVAL2 = '0:0,2:2,3:3,4:4,6:6' / Data subspace descriptor: value DSTYP3 = 'TIME ' / Data subspace descriptor: name DSVAL3 = 'TABLE ' / Data subspace descriptor: value DSFORM3 = 'D ' / Data subspace descriptor: datatype DSUNIT3 = 's ' / DM Keyword: Descriptor unit. DSREF3 = ':GTI3 ' / Data subspace descriptor: reference 2DSREF3 = ':GTI5 ' / Data subspace descriptor: reference 3DSREF3 = ':GTI6 ' / Data subspace descriptor: reference 4DSREF3 = ':GTI8 ' / Data subspace descriptor: reference DSTYP4 = 'PHAS ' / Data subspace descriptor: name DSVAL4 = '-4096:4095' / Data subspace descriptor: value DSFORM4 = 'I ' / Data subspace descriptor: datatype DSUNIT4 = 'adu ' / DM Keyword: Descriptor unit. 2DSVAL4 = '-4096:4095' / Data subspace descriptor: value 3DSVAL4 = '-4096:4095' / Data subspace descriptor: value 4DSVAL4 = '-4096:4095' / Data subspace descriptor: value HDUNAME = 'IMAGE ' DEADC = 9.87337410E-01 / Deadtime correction DEADAPP = F / Has DEADC been applied to data TELAPSE = 9.995840009309351E+04 / elapsed time MJD-OBS = 5.162902779463675E+04 / MJD of data start time USER = 'pence ' / User name of creator FILIN001= 'acisf00934N002_evt2.fits' / Input file name DROLLANG= 0.000000000000000E+00 / Mean roll angle (deci. deg) IMGBIN = 64 / Image binning factor MTYPE1 = 'sky ' / DM Keyword: Descriptor name. MFORM1 = 'x,y ' / DM Keyword: Descriptor value. MTYPE2 = 'EQPOS ' / DM Keyword: Descriptor name. MFORM2 = 'RA,DEC ' / DM Keyword: Descriptor value. DSTYP5 = 'POS(X,Y)' / Data subspace descriptor: name DSREF5 = ':REG00101' / Data subspace descriptor: reference DSVAL5 = 'TABLE ' / Data subspace descriptor: value CTYPE1 = 'RA---TAN' CRPIX1 = 6.450000000000000E+01 / X axis reference pixel DRPIX1 = 4.096500000000000E+03 / original X axis reference pixel CRVAL1 = 2.107801525309000E+02 / Coord of X ref pixel CDELT1 = -8.746666666666880E-03 / X axis increment DDELT1 = -1.366666666666700E-04 / original X axis increment CTYPE2 = 'DEC--TAN' / projection CRPIX2 = 6.450000000000000E+01 / Y axis reference pixel DRPIX2 = 4.096500000000000E+03 / original Y axis reference pixel CRVAL2 = 5.436679130448800E+01 / Coord of Y ref pixel CDELT2 = 8.746666666666880E-03 / Y axis increment DDELT2 = 1.366666666666700E-04 / original Y axis increment CROTA2 = 0.000000000000000E+00 / Sky coord rotation angle WCSNAMEP= 'PHYSICAL' WCSTY1P = 'PHYSICAL' LTV1 = 4.921875000000000E-01 / offset for logical to physical pixel LTM1_1 = 1.562500000000000E-02 / slope for logical to physical pixel CTYPE1P = 'X ' / Source of X-axis CRPIX1P = 1.000000000000000E+00 / X axis reference pixel CRVAL1P = 3.250000000000000E+01 / coord of X ref pixel in original image CDELT1P = 6.400000000000000E+01 / X axis increment WCSTY2P = 'PHYSICAL' LTV2 = 4.921875000000000E-01 / offset for logical to physical pixel LTM2_2 = 1.562500000000000E-02 / slope for logical to physical pixel CTYPE2P = 'Y ' / Source of Y-axis CRPIX2P = 1.000000000000000E+00 / Y axis reference pixel CRVAL2P = 3.250000000000000E+01 / coord of Y ref pixel in original image CDELT2P = 6.400000000000000E+01 / Y axis increment TOTCTS = 328246 / Total pixel count CHANMIN = 1 / Low PI channel CHANMAX = 1024 / High PI channel CHANTYPE= 'PI ' / Energy channel name END ----------------------------------------------------------------------- HDU 2 REGION BinTable 6 cols x 3 rows XTENSION= 'BINTABLE' / binary table extension BITPIX = 8 / 8-bit bytes NAXIS = 2 / 2-dimensional binary table NAXIS1 = 58 / width of table in bytes NAXIS2 = 3 / number of rows in table PCOUNT = 0 / size of special data area GCOUNT = 1 / one data group (required keyword) TFIELDS = 6 / number of fields in each row TTYPE1 = 'X ' / label for field 1 TFORM1 = '1D ' / data format of field: 8-byte DOUBLE TUNIT1 = 'pixel ' / physical unit of field TTYPE2 = 'Y ' / label for field 2 TFORM2 = '1D ' / data format of field: 8-byte DOUBLE TUNIT2 = 'pixel ' / physical unit of field TTYPE3 = 'SHAPE ' / label for field 3 TFORM3 = '16A ' / data format of field: ASCII Character TTYPE4 = 'R ' / label for field 4 TFORM4 = '2D ' / data format of field: 8-byte DOUBLE TUNIT4 = 'pixel ' / physical unit of field TTYPE5 = 'ROTANG ' / label for field 5 TFORM5 = '1D ' / data format of field: 8-byte DOUBLE TUNIT5 = 'deg ' / physical unit of field TTYPE6 = 'COMPONENT' / label for field 6 TFORM6 = '1I ' / data format of field: 2-byte INTEGER EXTNAME = 'REGION ' / name of this binary table extension EXTVER = 1 EXTLEVEL= 1 / Level i DB hierarchy: Data table HDUNAME = 'REGION ' / ASCDM block name HDUCLASS= 'ASC ' / Region extension HDUCLAS1= 'REGION ' / Region extension HDUCLAS2= 'STANDARD' / Region extension HDUVERS = '1.2.0 ' HDUDOC = 'ASC-FITS-REGION-1.2: Rots, McDowell: FITS REGION Binary Table Design' CONTENT = 'REGION ' / CXC Content Key TELESCOP= 'CHANDRA ' / Telescope (mission) name DATAMODE= 'FAINT ' / Datamode INSTRUME= 'ACIS ' / Instrument name OBJECT = 'M101 ' / Name of observed object ONTIME = 9.951455727793276E+04 / On-source time DEADC = 9.87337410E-01 / Deadtime correction DEADAPP = F / Has DEADC been applied to data EXPOSURE= 9.825444528487051E+04 / Exposure time LIVETIME= 9.825444528487051E+04 / Deadtime corrected on-source time DATE-OBS= '2000-03-26T00:20:55' / Start date of observations DATE-END= '2000-03-27T04:40:34' / End date of observations TSTART = 7.041840145661506E+07 / time start TSTOP = 7.051835985670815E+07 / time stop TELAPSE = 9.995840009309351E+04 / elapsed time MJD-OBS = 5.162902779463675E+04 / MJD of data start time MJDREF = 5.081400000000000E+04 / MJD reference day TIMEREF = 'LOCAL ' / reference time TIMESYS = 'TT ' / time measured from TIMEUNIT= 's ' / unit for time keywords EQUINOX = 2.000E+03 / Equinox of celestial coord system RADECSYS= 'ICRS ' / celestial coord system USER = 'pence ' / User name of creator FILIN001= 'acisf00934N002_evt2.fits' / Input file name CREATOR = 'extractor v4.84' / Extractor DATE = '2008-06-20T16:49:07' / file creation date (YYYY-MM-DDThh:mm:ss UT) ORIGIN = 'NASA/GSFC' / origin of fits file MTYPE1 = 'sky ' / DM Keyword: Descriptor name. MFORM1 = 'x,y ' / DM Keyword: Descriptor value. MTYPE2 = 'EQPOS ' / DM Keyword: Descriptor name. MFORM2 = 'RA,DEC ' / DM Keyword: Descriptor value. TCTYP1 = 'RA---TAN' TCRPX1 = 4.096500000000000E+03 / X axis reference pixel TDRPX1 = 4.096500000000000E+03 / original X axis reference pixel TCRVL1 = 2.107801525309000E+02 / Coord of X ref pixel TCDLT1 = -1.366666666666700E-04 / X axis increment TDDLT1 = -1.366666666666700E-04 / original X axis increment TCTYP2 = 'DEC--TAN' / projection TCRPX2 = 4.096500000000000E+03 / Y axis reference pixel TDRPX2 = 4.096500000000000E+03 / original Y axis reference pixel TCRVL2 = 5.436679130448800E+01 / Coord of Y ref pixel TCDLT2 = 1.366666666666700E-04 / Y axis increment TDDLT2 = 1.366666666666700E-04 / original Y axis increment TCROT2 = 0.000000000000000E+00 / Sky coord rotation angle CHECKSUM= 'ZmaGdkTDZkYDdkYD' / HDU checksum updated 2008-06-20T16:49:07 DATASUM = '3203022982' / data unit checksum updated 2008-06-20T16:49:07 END ----------------------------------------------------------------------- X Y SHAPE R ROTANG COMPONENT Row pixel pixel pixel deg 1 2896.500 5056.500 CIRCLE 381.971 0.000 1 0.000 2 5282.054 4854.569 BOX 1303.459 28.395 2 655.094 3 2944.500 3472.500 ELLIPSE 288.000 337.404 3 512.000 -----------------------------------------------------------------------