| HDU_1: | Structure SIMPLE: "T / FITS file: MLSO Mark-4 K-coronameter" BITPIX: "16 / 2-byte signed integers" NAXIS: "2 / number of dimensions" NAXIS1: "720 / size of Position Angle dimension" NAXIS2: "384 / size of Radius dimension" EXTEND: "T / extension(s) possible" ORIGIN: "'HAO' / High Altitude Observatory (HAO)" TELESCOP: "'Mk4' / Mark-4 K-Coronameter (Mk4)" INSTRUME: "'Dalsa' / rotating 2048-element Dalsa linear array" DATE-OBS: "'2006-03-08' / observation date: CCYY-MM-DD [2006 DOY 067]" TIME-OBS: "'17:28:59' / observation time: HH:MM:SS" OBJECT: "'corona' / white light [700-1080 nanometers]" TYPE-OBS: "'pB' / polarization Brightness" VIGNET: "'N' / image vignetted: [Y or N]" NIMAVG: "1 / number of images averaged" DATAFORM: "'Polar' / Mk4 data form" COORDNAM: "'Heliocentric' / coordinate system" CTYPE1: "'Position Angle' / axis 1 type: Position Angle [CCW]" CRPIX1: "0.00 / Position Angle Solar North [pixel]" CRVAL1: "0.00 / Position Angle Solar North [degrees]" CDELT1: "0.5 / Position Angle coord increment [degrees/pixel]" CROTA1: "0.00 / Position Angle rotation [deg.] from reference" CTYPE2: "'Radius' / axis 2 type Radius" CRPIX2: "-178.28 / Radius Sun Center [PIXEL]" CRVAL2: "0.00 / Radius Sun Center [arcsec]" CDELT2: "5.05416 / Radius coord increment [arcsec/pixel]" CROTA2: "0.00 / Radius rotation [deg.] from reference" ROLLADJ: "0.00 / image rotated 0.00 deg CCW" CRRADIUS: "191.29 / solar radius [pixels]" RSUN: "966.82 / solar radius [arcsec]" SOLAR_P0: "-23.25 / solar P-angle [degrees]" SOLAR_B0: "-7.24 / solar B-angle [degrees]" SOLAR_L0: "77.83 / Solar L-angle [degrees]: Carr. Longitude" CARR_ROT: "2040 / Carrington Rotation number" BUNIT: "'Bsun' / magnitude units" BSCALE: "1.000000e-10 / physical = data * BSCALE + BZERO" BZERO: "-1.000000e-07 / " DATAMIN: "-3.377e-06 / minimum data value (-3.277e+04)" DATAMAX: "3.177e-06 / maximum data value ( 3.277e+04)" DISPMIN: "-5.000e-08 / min. display value ( 500)" DISPMAX: "5.000e-07 / max. display value ( 6000)" DIRAXIS1: "'RIGHT' / display direction for axis 1 [X]" DIRAXIS2: "'UP' / display direction for axis 2 [Y]" TMIN: "0.00 / START BARREL ANGLE [DEGREES]" TMAX: "359.50 / STOP BARREL ANGLE [DEGREES]" RMIN: "1.10 / inner field-of-view limit [Rsun]" RMAX: "2.85 / outer field-of-view limit [Rsun]" TSCPFILE: "'06d067.18_22.mk4.tscpinv' / TSCP file" REFFILE: "'06d067.18_16.mk4.q' / reference file" CVERSION: "'Version 2.1' / calibration version" DATE-CAL: "'2006-03-09' / Mk4 calibration date : CCYY-MM-DD" DATE: "'2006-03-09' / date of FITS file creation : CCYY-MM-DD" VERSION: "'Mk4 v2.12' / mk4fits software version" key_54: " / ----------------------------------------------------------------------" COMMENT: " / For images, pixels are displayed with the origin at the lower left", " / corner ; i.e., horizontal scans (left to right), with the first scan", " / at the bottom of the image, & the last scan at the top.", " / Axis 1 is the azimuthal axis and axis 2 is the radial axis.", " / TMIN & TMAX indicate the start/stop angles for the azimuthal axis.", " / Calibrated brightness measurements in the Mark-4 data are specified", " / in units of Bsun, which is a ratio of brightness of the corona to the", " / mean brightness of the solar disk. To convert integer pixel values", " / to Bsun units, multiply each pixel value by BSCALE & add BZERO.", " / Intensity data is *QUANTITATIVELY* useful only when BUNIT='Bsun'.", " / The Mark-4 K-coronameter (Mk4) observes the lower corona [700-950 nm]", " / from ~1.10 to ~2.85 solar radii [Rsun], using a 2048-element linear", " / Dalsa array (sampled to 384 pixels) aligned along a radial direction", " / outward from the center of the sun. The detector is rotated over a", " / 3-minute period to accumulate a set of radial rays, which may be", " / converted from polar to Cartesian (i.e., rectangular) coordinates.", " / The Mauna Loa Solar Observatory (MLSO) is located on the island of", " / Hawaii, and is operated by the High Altitude Observatory (HAO),", " / a division of the National Center for Atmospheric Research (NCAR),", " / under sponsorship of the National Science Foundataion(NSF)." key_60: " / ----------------------------------------------------------------------" key_66: " / ----------------------------------------------------------------------"
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| HDU_2: | Structure XTENSION: "'IMAGE ' / FITS EXTENSION" BITPIX: "8 / MIXTURE OF CHAR[C], INT[I], FLOAT[F] VARIABLES" NAXIS: "1 / NUMBER OF DIMENSIONS" NAXIS1: "1024 / SIZE OF DIMENSION # 1" PCOUNT: "0 / EXTENSION PCOUNT" GCOUNT: "1 / EXTENSION GCOUNT" EXTNAME: "'MK4_HSKP' / MLSO/MK4 BINARY HEADER EXTENSION" COMMENT: " / KEYWORDS & PARAMETERS BELOW DESCRIBE THE MK4 BINARY HEADER CONTENTS:", " / / BYTES 884-1023 [C]: FILL BYTES" I_YEAR: "2006 / BYTES 0- 3 [I]: IMAGE YEAR: CCYY" I_MONTH: "3 / BYTES 4- 7 [I]: IMAGE MONTH: 1-12" I_DAY: "8 / BYTES 8- 11 [I]: IMAGE DAY: 1-31" I_HOUR: "17 / BYTES 12- 15 [I]: IMAGE HOUR: 0-23" I_MINUTE: "28 / BYTES 16- 19 [I]: IMAGE MINUTE: 0-59" I_CENSEC: "5900 / BYTES 20- 23 [I]: IMAGE CENTISEC: seconds*100" I_JULD: "38782 / BYTES 24- 27 [I]: IMAGE JULIAN DATE" I_DOY: "67 / BYTES 28- 31 [I]: IMAGE DAY-OF-YEAR: 1-366" I_TIME: "3776340 / BYTES 32- 35 [I]: IMAGE TIME: HERTZ UNITS" XDIM: "720 / BYTES 36- 39 [I]: X-AXIS DIMENSION" YDIM: "384 / BYTES 40- 43 [I]: Y-AXIS DIMENSION" DURATION: "9805 / BYTES 44- 47 [I]: SCAN DURATION [HZ]" JULDREF: "2415021 / BYTES 48- 51 [I]: Julian Ref: 1 Jan 1900" IMGDTYPE: "16 / BYTES 48- 51 [I]: bits/pixel" FILL1_0: "0 / BYTES 52- 55 [I]: FILL BYTES" FILL1_1: "0 / BYTES 56- 59 [I]: FILL BYTES" PANGLE: "-23.25 / BYTES 64- 67 [F]: SOLAR P-ANGLE [DEGREES]" BANGLE: "-7.24 / BYTES 68- 71 [F]: SOLAR B-ANGLE [DEGREES]" LANGLE: "77.59 / BYTES 72- 75 [F]: SOLAR L-ANGLE [DEGREES]" RA: "348.97 / BYTES 76- 79 [F]: RIGHT ASCENSION" DEC: "-4.74 / BYTES 80- 83 [F]: DECLINATION" HA: "-76.02 / BYTES 84- 87 [F]: SOLAR HOUR-ANGLE [DEGREES]" ELEV: "11.49 / BYTES 88- 91 [F]: SOLAR ELEVATION" AZIMUTH: "99.30 / BYTES 92- 95 [F]: SOLAR AZIMUTH" AMASS: "5.02 / BYTES 96- 99 [F]: AIR MASS" RADIUS: "966.82 / BYTES 100-103 [F]: SOLAR RADIUS [ARCSEC]" SKYTX: "4090.00 / BYTES 104-107 [F]: SKY TRANSMISSION MAX VALUE." MK4PHASE: "-6.31 / BYTES 108-111 [F]: MK4 COORD FRAME PHASE [DEG]" SKYTXUSE: "320.79 / BYTES 116-119 [F]: SKY TRANSMISSION USED." DATASCL: "1.000000e+10 / BYTES 120-123 [F]: DATA SCALE" DATAOFF: "1.000000e+03 / BYTES 124-127 [F]: DATA OFFSET" SPARE2: "0.00 / BYTES 128-131 [F]: SPARE 2" ORGHAIR0: "110.40 / BYTES 132-135 [F]: ORIGINAL HAIRLINE LOC [0]" ORGHAIR1: "275.97 / BYTES 136-139 [F]: ORIGINAL HAIRLINE LOC [1]" HAIR0: "103.63 / BYTES 140-143 [F]: HAIRLINE LOCATION [0]" HAIR1: "275.68 / BYTES 144-147 [F]: HAIRLINE LOCATION [1]" XCEN: "-9999.00 / BYTES 112-115 [F]: X-AXIS SUN CENTER [PIXELS]" YCEN: "-9999.00 / BYTES 148-151 [F]: Y-AXIS SUN CENTER [PIXELS]" PIXSCL: "-9999.00 / BYTES 152-155 [F]: SCALE [CARTESIAN:PIX/RSUN]" R0: "0.931973 / BYTES 156-159 [F]: RADIUS LOWEST PIXEL [RSUN]" DR: "0.00522762 / BYTES 160-163 [F]: RADIAL PIXEL INC. [RSUN]" RMAXD: "2.93415 / BYTES 164-167 [F]: RADIUS OF HIGHEST PIXEL" TH_MIN: "0.00 / BYTES 168-171 [F]: MINIMUM SCAN ANGLE [DEGREES]" TH_MAX: "359.50 / BYTES 172-175 [F]: MAXIMUM SCAN ANGLE [DEGREES]" RAW_TMIN: "-183.00 / BYTES 176-179 [F]: RAW MIN.SCAN ANGLE [DEGREES]" RAW_TMAX: "183.00 / BYTES 180-183 [F]: RAW MAX.SCAN ANGLE [DEGREES]" BACKLASH: "0.50 / BYTES 184-187 [F]: BACKLASH ADJ APPLIED [DEG]" PHASE: "30.00 / BYTES 188-191 [F]: PHASE OFFSET [DEGREES]" OBSTYPE: "1000 / BYTES 192-195 [I]: OBS: CAL0,CAL15,DARK,CORONA" DATA_TYP: "1 / BYTES 196-199 [I]: DATA TYPE: I, Q, U" PROCSTEP: "13 / BYTES 200-203 [I]: DP: RAW,CAL,AVG,RECT,SLIT" BAR_DIR: "1 / BYTES 204-207 [I]: SCAN DIRECTION:-1=REV +1=FWD" NRAY: "981 / BYTES 208-211 [I]: NUMBER OF RADIAL RAYS" PIXELS: "384 / BYTES 212-215 [I]: NUMBER OF PIXELS" FILL2: "0 / BYTES 216-219 [I]: FILL BYTES" C_YEAR: "2006 / BYTES 220-223 [I]: CAL YEAR: CCYY" C_MONTH: "3 / BYTES 224-227 [I]: CAL MONTH: 1-12" C_DAY: "9 / BYTES 228-231 [I]: CAL DAY: 1-31" C_HOUR: "10 / BYTES 232-235 [I]: CAL HOUR: 0-23" C_MINUTE: "31 / BYTES 236-239 [I]: CAL MINUTE: 0-59" C_CENSEC: "2300 / BYTES 240-243 [I]: CAL CENTISEC: seconds * 10" C_JULD: "38783 / BYTES 244-247 [I]: CAL JULIAN DATE" C_DOY: "67 / BYTES 248-251 [I]: CAL DAY-OF-YEAR: 1-366" C_TIME: "2272980 / BYTES 252-255 [I]: CAL TIME: HERTZ UNITS" TSCPFILE: "'06d067.18_22.mk4.tscpinv' / BYTES 256-319 [C]: TSCP FILE" REFFILE: "'06d067.18_16.mk4.q' / BYTES 320-383 [C]: REFERENCE FILE" CVERSION: "'Version 2.1' / BYTES 384-447 [C]: VERSION" AVGTIME1: "' ' / BYTES 448-467 [C]: IMAGE TIMES FOR AVERAGE" AVGTIME2: "' ' / BYTES 468-487 [C]: IMAGE TIMES FOR AVERAGE" AVGTIME3: "' ' / BYTES 488-507 [C]: IMAGE TIMES FOR AVERAGE" AVGTIME4: "' ' / BYTES 508-527 [C]: IMAGE TIMES FOR AVERAGE" AVGTIME5: "' ' / BYTES 528-547 [C]: IMAGE TIMES FOR AVERAGE" AVGTIME6: "' ' / BYTES 548-567 [C]: IMAGE TIMES FOR AVERAGE" AVGTIME7: "' ' / BYTES 568-587 [C]: IMAGE TIMES FOR AVERAGE" AVGTIME8: "' ' / BYTES 588-607 [C]: IMAGE TIMES FOR AVERAGE" JULDATE0: "37864.885400 / BYTES 608-615 [D]: START DATE FOR INST. PARAM." JULDATE1: "40000.000000 / BYTES 616-623 [D]: END DATE FOR INST. PARAM." BOPAL: "1.38e-05 / BYTES 624-627 [F]: OPAL TRANSMISSION" TRT: "0.847389 / BYTES 628-631 [F]: TILTPLATE TRANSMISSION" FPT: "0.01641 / BYTES 632-635 [F]: TILTPLATE POLARIZATION" IDSPARE: "-9999 / BYTES 636-639 [F]: SPARE" KAPPA: "1.000000 / BYTES 640-643 [F]: B=KAPPA*(I^(KAPPA-1)" BAROFF: "2.85 / BYTES 644-647 [F]: BARREL OFFSET [DEG]." HAIRSPT0: "103.66 / BYTES 648-651 [F]: HAIR SPOT 0." HAIRSPT1: "275.67 / BYTES 652-655 [F]: HAIR SPOT 1." R0_ID: "0.938592 / BYTES 656-659 [F]: R0 [RSUN] 960 ARCSEC/RSUN." DR_ID: "0.00526475 / BYTES 660-663 [F]: PIXEL INCREMENT [RSUN]." GOODRMIN: "1.10 / BYTES 664-667 [F]: MINIMUM HEIGHT [RSUN]." GOODRMAX: "2.85 / BYTES 668-671 [F]: MAXIMUM HEIGHT [RSUN]." BIASSPT0: "0.00 / BYTES 672-675 [F]: LOWEST PIXEL FOR BIAS [RSUN" BIASSPT1: "9.00 / BYTES 676-679 [F]: HIGHEST PIXEL FOR BIAS [RSUN" ZEROSKY: "376.00 / BYTES 680-683 [F]: SKY TRANSMISSION MAXIUMUM." VENUSFAC: "1.00 / BYTES 684-687 [F]: VENUS CALIBRATION FACTOR." EXTRAFAC: "1.00 / BYTES 688-691 [F]: VENUS CALIBRATION FACTOR." DIFF_FAC: "2.50 / BYTES 692-695 [F]: DIFFRACTION CAL. FACTOR." DIFF_PIX: "40 / BYTES 696-699 [I]: HIGHEST PIXEL FOR DIFFRACTIO" PHIPIX: "192 / BYTES 700-703 [I]: HIGHEST PIXEL FOR DIFFRACTIO" POLCKPIX: "40 / BYTES 704-707 [I]: REV. POLARITY PIXEL OFFSET." NEGPIX0: "35 / BYTES 708-711 [I]: LOWEST PIXEL FOR NEG. FIX." NEGPIX1: "365 / BYTES 712-715 [I]: HIGHEST PIXEL FOR NEG. FIX." WRAPPIX0: "20 / BYTES 716-719 [I]: LOWEST PIXEL FOR NEG. WRAP." WRAPPIX1: "34 / BYTES 720-723 [I]: HIGHEST PIXEL FOR NEG. WRAP." RINGPIX0: "340 / BYTES 724-727 [I]: LOWEST PIXEL FOR RING SEARC" RINGPIX1: "370 / BYTES 728-731 [I]: HIGHEST PIXEL FOR RING SEARC" RINGPIXR: "300 / BYTES 732-735 [I]: RING REFERENCE HEIGHT." CORRECT0: "'gain_0.200309022115' / BYTES 736-799 [C]: CORRECT #0 FILE." CORRECT1: "'gain_1.200309022115' / BYTES 800-863 [C]: CORRECT #1 FILE." QUXFORM: "7.27 / BYTES 864-867 [F]: quXform ANGLE [DEGREES]." DEPOLAMP: "0.00 / BYTES 868-871 [F]: depol AMPLITUDE." DEPOLPHI: "-40.17 / BYTES 872-875 [F]: depol ANGLE [DEGREES]." DSCANAMP: "0.00 / BYTES 876-879 [F]: depolscan AMPLITUDE." DSCANPHI: "28.71 / BYTES 880-883 [F]: depolscan ANGLE [DEGREES]."
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