Department of Chemistry, Natural Sciences Complex, University of Buffalo, State University of New York, Buffalo, New York, U.S.A. Current printing (last digit): 10 9 8 7 6 5 4 3 2 1 PRINTED IN THE UNITED STATES OF AMERICA Neither this book nor any part may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, microfilming, and recording, or by any information storage and retrieval system, without permission in writing from the publisher. For more information, write to Special Sales/Professional Marketing at the headquarters address above. 270 Madison Avenue, New York, NY 10016 tel: 21 fax: 21 Eastern Hemisphere Distribution Marcel Dekker AG Hutgasse 4, Postfach 812, CH-4001 Basel, Switzerland tel: 41-6 fax: 41-6 World Wide Web http:/ /The publisher offers discounts on this book when ordered in bulk quantities. ISBN: 0-8247-0950-0 This book is printed on acid-free paper. Library of Congress Cataloging-in-Publication Data A catalog record for this book is available from the Library of Congress. HEBREW UNNERSITY OF JERUSALEM JERUSALEM, ISRAEL TTYPE54 = 'LUM_0.2_12.UNNERSI7Y OF RHODE ISLAND KINGSTON*RHODE ISLAND TUNIT53 = 'erg/s/cm2' / units for column 53 TUNIT52 = 'erg/s/cm2' / units for column 52 TUNIT51 = 'erg/s/cm2' / units for column 51 TUNIT50 = 'erg/s/cm2' / units for column 50 TUNIT49 = 'erg/s/cm2' / units for column 49 TUNIT48 = 'erg/s/cm2' / units for column 48 TUNIT47 = 'arcsec ' / units for column 47 TTYPE47 = 'SDSS2ROSAT_SEP' / label for column 47 TTYPE46 = 'RASS_COUNTS_SNR' / label for column 46 TUNIT45 = 'counts/s' / units for column 45 TTYPE45 = 'RASS_COUNTS' / label for column 45 TTYPE44 = 'GAL_EXT ' / label for column 44 TTYPE42 = 'ERR_PSFMAG' / label for column 42 TTYPE41 = 'PSFMAG ' / label for column 41 TTYPE40 = 'IVAR_PSFFLUX' / label for column 40 TUNIT39 = 'nanomaggies' / units for column 39 TTYPE39 = 'PSFFLUX ' / label for column 39 TTYPE38 = 'OBJ_ID ' / label for column 38 TTYPE37 = 'FIELD_NUMBER' / label for column 37 TTYPE36 = 'COL_NUMBER' / label for column 36 TTYPE35 = 'RERUN_NUMBER' / label for column 35 TTYPE34 = 'RUN_NUMBER' / label for column 34 TTYPE33 = 'ERR_BI_CIV' / label for column 33 TTYPE32 = 'BI_CIV ' / label for column 32 TDIM31 = '(1,51) ' / dimensions for column 31 TTYPE31 = 'SPECTRO_DUPLICATE' / label for column 31 TTYPE30 = 'FIBERID_DUPLICATE' / label for column 30 TTYPE29 = 'MJD_DUPLICATE' / label for column 29 TTYPE28 = 'PLATE_DUPLICATE' / label for column 28 TTYPE27 = 'N_SPEC ' / label for column 27 TTYPE26 = 'N_SPEC_BOSS' / label for column 26 TTYPE25 = 'N_SPEC_SDSS' / label for column 25 TTYPE24 = 'EBOSS_TARGET2' / label for column 24 TTYPE23 = 'EBOSS_TARGET1' / label for column 23 TTYPE22 = 'EBOSS_TARGET0' / label for column 22 TTYPE21 = 'ANCILLARY_TARGET2' / label for column 21 TTYPE20 = 'ANCILLARY_TARGET1' / label for column 20 TTYPE19 = 'BOSS_TARGET1' / label for column 19 TTYPE18 = 'Z_MGII ' / label for column 18 TTYPE17 = 'Z_PCA_ER' / label for column 17 TTYPE15 = 'ZWARNING' / label for column 15 TTYPE14 = 'Z_PIPE_ERR' / label for column 14 TTYPE13 = 'Z_PIPE ' / label for column 13 TTYPE11 = 'SOURCE_Z' / label for column 11 TTYPE1 = 'SDSS_NAME' / label for column 1 NAXIS2 = 526356 / number of rows in table Now, I try to open the file to see the whole array of data and I am confused out of these data given: XTENSION= 'BINTABLE' / binary table extension Name Ver Type Cards Dimensions Formatġ DR14Q_v4_4 1 BinTableHDU 328 526356R x 105C I obtain the following output: Filename: /content/drive/MyDrive/RAD PRAC/SDSS.fits Where file_pth is the fits file location. When I opened this files header on Python, I obtain: hdu_list = fits.open(file_pth) The thing is that I need to analyse some Quasar light curves and hence I went to the DR14Q data release of the SDSS Survey here in order to obtain the information on the Quasar Files (Big file don't open on data). So, I am relatively comfortable with handling $\textit$ files and hence I choose Python for the following operation.