                File:    NrecxLrec    Unix        Z  Explanation
             IV/1/f1:      44x80         6b       4b 4001-transit tables
             IV/1/f2:     396x80        29b       9b 4001-NGC 129
             IV/1/f3:     386x80        46b      11b 4001-NGC 457
             IV/1/f4:     194x80        26b       8b 4001-NGC 581
             IV/1/f5:     264x80        40b       7b 4001-NGC 654
             IV/1/f6:     762x80        76b      18b 4001-NGC 663
             IV/1/f7:     411x80        20b       9b 4001-NGC 752
             IV/1/f8:     545x80        30b      10b 4001-NGC 1039
             IV/1/f9:     542x80        16b       7b 4001-NGC 1245
            IV/1/f10:     104x80         8b       4b 4001-NGC 1502
            IV/1/f11:     457x80        18b       8b 4001-NGC 1647
            IV/1/f12:      98x80         5b       3b 4001-NGC 1662
            IV/1/f13:     156x80         7b       4b 4001-NGC 1778
            IV/1/f14:     397x80        16b       7b 4001-NGC 1817
            IV/1/f15:     793x80        74b      22b 4001-NGC 2168
            IV/1/f16:      74x80         5b       3b 4001-NGC 2169
            IV/1/f17:     186x80         8b       4b 4001-NGC 2244
            IV/1/f18:     234x80        24b       5b 4001-NGC 2281
            IV/1/f19:     186x80         8b       4b 4001-NGC 2287
            IV/1/f20:     175x80        10b       5b 4001-NGC 2301
            IV/1/f21:     323x80        23b       8b 4001-NGC 2324
            IV/1/f22:     344x80        40b       8b 4001-NGC 2420
            IV/1/f23:     228x80        18b       6b 4001-NGC 2422
            IV/1/f24:     199x80         7b       4b 4001-NGC 2483
            IV/1/f25:     224x80         9b       4b 4001-NGC 2516
            IV/1/f26:     131x80         5b       3b 4001-NGC 2571
            IV/1/f27:     315x80        33b       9b 4001-NGC 2682
            IV/1/f28:     299x80        10b       5b 4001-NGC 3114
            IV/1/f29:     125x80         6b       3b 4001-NGC 6383
            IV/1/f30:     217x80        16b       5b 4001-NGC 6405
            IV/1/f31:     168x80         8b       4b 4001-NGC 6475
            IV/1/f32:     715x80        79b      16b 4001-NGC 6633
            IV/1/f33:     289x80        12b       6b 4001-NGC 6694
            IV/1/f34:     262x80         9b       5b 4001-NGC 6811
            IV/1/f35:     212x80        27b       5b 4001-NGC 6830
            IV/1/f36:     243x80        38b       6b 4001-NGC 6834
            IV/1/f37:     243x80        13b       5b 4001-NGC 6871
            IV/1/f38:     395x80        15b       6b 4001-NGC 6940
            IV/1/f39:     391x80        14b       6b 4001-NGC 7062
            IV/1/f40:     144x80         8b       4b 4001-NGC 7067
            IV/1/f41:     174x80         7b       4b 4001-NGC 7086
            IV/1/f42:     160x80         9b       5b 4001-NGC 7092
            IV/1/f43:     216x80        17b       6b 4001-NGC 7209
            IV/1/f44:     155x80        23b       5b 4001-NGC 7235
            IV/1/f45:     166x80         7b       4b 4001-NGC 7261
            IV/1/f46:     177x80         8b       4b 4001-IC 2602
            IV/1/f47:     289x80        18b       6b 4001-IC 4665
            IV/1/f48:     281x80        34b       7b 4001-IC 4725
            IV/1/f49:     338x80        18b       7b 4001-IC 4756
            IV/1/f50:     157x80         9b       4b 4001-IC 4996
            IV/1/f51:     395x80        43b      10b 4001-MEL 111
IV/1          =====>:   14379x80      1055b     332b Total

                File:    NrecxLrec    Unix        Z  Explanation
             IV/2/f1:    7196x40       466b     141b 4002-Identifications
             IV/2/f2:    3483x24       151b      53b 4002-Corresp DM
             IV/2/f3:    3739x24       140b      53b 4002-Corresp HD
             IV/2/f4:     297x80        36b      15b 4002-References
IV/2          =====> obsolete <===8-Oct-1991 by Francois Ochsenbein Replaced by IV/17

                File:    NrecxLrec    Unix        Z  Explanation
    IV/4/catalog.ori:  258997x30     15619b    4550b 4004-Corresp SAO/HD
IV/4          =====> obsolete <=== 13-May-1996: See IV/12

                File:    NrecxLrec    Unix        Z  Explanation
             IV/6/f1:   45135x40      3280b    1014b 4006-CSI/ADS/IDS
IV/6          =====>:   45135x40      3280b    1014b Total

                File:    NrecxLrec    Unix        Z  Explanation
             IV/8/f1:   48781x60      5813b    1166b 4008-Bonnet Stars
             IV/8/f2:    4740x54       511b      76b 4008-Bonnet Remarq
IV/8          =====>:   53521x60      6324b    1242b Total

                File:    NrecxLrec    Unix        Z  Explanation
             IV/9/f1:  234000x160    50963b   16043b 4009-CSI
             IV/9/f2:  217886x160    46351b   15254b 4009-
IV/9          =====>:  451886x160    97314b   31297b Total

                File:    NrecxLrec    Unix        Z  Explanation
        IV/12/ReadMe:      94x80        12b       7b SAO-HD-GC-DM Cross Index
       IV/12/adc.doc:     440x80        43b      20b ADC Documentation
       IV/12/adc.sty:      68x78         7b       5b ADC Style File
       IV/12/adc.tex:     407x80        41b      21b ADC Documentation
         IV/12/index:  258944x44     19148b    7532b The Cross-Index
IV/12         =====>:  259953x80     19251b    7585b Total

                File:    NrecxLrec    Unix        Z  Explanation
        IV/13/ReadMe:      41x80         6b       3b HD-DO Cross-Index
     IV/13/do_hd.dat:    5764x15       182b       0b DO->HD
IV/13         =====>:    5805x80       188b       3b Total

                File:    NrecxLrec    Unix        Z  Explanation
        IV/16/ReadMe:      82x80        10b       6b SB from Toulouse
       IV/16/catalog:    1207x54       100b      31b The catalogue
IV/16         =====>:    1289x80       110b      37b Total

                File:    NrecxLrec    Unix        Z  Explanation
       IV/17A/ReadMe:     411x80        44b      18b Xid in Open Cl.
      IV/17A/adc.doc:     575x83        54b      22b ADC Document
      IV/17A/adc.sty:      68x78         7b       5b LaTeX style
      IV/17A/adc.tex:     541x106       51b      23b ADC Document (Latex)
   IV/17A/adsidx.dat:     449x26        24b       9b ADS table
    IV/17A/dmidx.dat:    7892x26       418b     116b DM table
  IV/17A/gcvsidx.dat:     847x26        45b      14b GCVS table
    IV/17A/hdidx.dat:    4237x26       217b      62b HD table
    IV/17A/hridx.dat:     295x26        16b       7b HR table
   IV/17A/idsidx.dat:    1023x26        53b      23b IDS table
    IV/17A/lsidx.dat:     299x26        17b       7b LS table
   IV/17A/lssidx.dat:     435x26        24b       0b LSS table
  IV/17A/miscidx.dat:    1106x26        58b       0b Miscellaneous ids
 IV/17A/openclus.dat:    9543x128     1171b     240b Main Catalog
     IV/17A/refs.dat:     328x78        39b      16b References to clusters
   IV/17A/saoidx.dat:    2773x26       142b      41b SAO ids
   IV/17A/selidx.dat:     223x26        13b       0b SA ids
IV/17A        =====>:   31045x128     2393b     603b Total

                File:    NrecxLrec    Unix        Z  Explanation
        IV/18/ReadMe:     402x80        47b      20b WDS-DM-HD-ADS Cross Index
   IV/18/adssort.dat:   18503x40      1357b     519b Sorted by ADS number
    IV/18/dmsort.dat:   45053x40      3176b    1192b Sorted by DM number
    IV/18/hdsort.dat:   25800x40      1898b     745b Sorted by HD number
   IV/18/namedup.dat:    4167x54       170b      66b Systems with multiple names
  IV/18/namesort.dat:   65467x40      3971b    1557b Sorted by discoverer name
  IV/18/position.dat:   65467x50      5209b    1990b Index by 1900 position
IV/18         =====>:  224859x80     15828b    6089b Total

                File:    NrecxLrec    Unix        Z  Explanation
        IV/20/ReadMe:     132x80        16b       8b Metal-Deficient F-M Stars (Bartkevicius 1986)
  IV/20/crossids.dat:    8542x20       324b       0b Cross-identifications
      IV/20/data.dat:    1555x263      459b       0b Catalog
     IV/20/notes.dat:     184x73        15b       0b Notes
    IV/20/numsys.txt:      89x73         6b       0b Numerical system used for numbers
   IV/20/srccats.txt:     214x80        27b       0b Source catalogues
IV/20         =====>:   10716x263      847b       8b Total

                File:    NrecxLrec    Unix        Z  Explanation
            IV/21/f1:   82018x130     6226b    1877b 4021 - INFRARED SOURCE CROSS INDEX
IV/21         =====>:   82018x130     6226b    1877b Total

                File:    NrecxLrec    Unix        Z  Explanation
        IV/22/ReadMe:      84x80        10b       6b FK5-SAO-HD-Common Cross Index (Smith 1996)
     IV/22/index.dat:    1535x123      304b     138b The catalog
IV/22         =====>:    1619x123      314b     144b Total

                File:    NrecxLrec    Unix        Z  Explanation
        IV/23/ReadMe:     136x80        15b       6b Sonneberg variables on MVS 246-301 (Kinnunen+, 2000)
     IV/23/notes.dat:     712x80        62b       0b Individual notes
    IV/23/table1.dat:     839x67        97b       0b Variables on MVS 246-275 (AN name)
    IV/23/table2.dat:    2469x68       264b       0b Variables on MVS 275-301 (S name)
IV/23         =====>:    4156x80       438b       6b Total

                File:    NrecxLrec    Unix        Z  Explanation
        IV/24/ReadMe:     285x80        35b       0b Identifications of Galactic Planetary Nebulae (Kohoutek, 2001)
      IV/24/images/*:      30x.     352834b       0b Finding charts and figures
    IV/24/notes1.dat:     823x80        98b      28b Notes to table1
    IV/24/notes2.dat:     294x80        32b      10b Notes to table2
    IV/24/notes4.dat:     552x80        69b      16b Notes to table4
    IV/24/notes8.dat:     370x80        49b      12b Notes to table8
      IV/24/refs.dat:     386x197       48b      17b References
    IV/24/table1.dat:    1759x91       261b      62b General List of PNe
    IV/24/table2.dat:    1510x80       233b      72b List of PNe
    IV/24/table3.dat:     249x72        31b      11b Misclassified PNe
    IV/24/table4.dat:    6576x104     1350b     235b Accurate Coordinates
    IV/24/table5.dat:     746x93       117b      26b Possible pre-PNe
    IV/24/table6.dat:     154x91        25b       7b Possible post-PNe
    IV/24/table7.dat:     322x74        23b       9b Index of Discovery Lists
    IV/24/table8.dat:     655x80       102b      28b List of Finding Charts
      IV/24/text.tex:    1819x1208     235b      68b LaTeX version of the catalog
IV/24         =====>:   16530x1208  355542b     601b Total

                File:    NrecxLrec    Unix        Z  Explanation
        IV/25/ReadMe:      67x80         9b       5b HD identifications for Tycho-2 stars (Fabricius+, 2002)
     IV/25/notes.dat:     123x123       20b       9b Individual notes
   IV/25/tyc2_hd.dat:  353527x34     24168b       0b Catalog
IV/25         =====>:  353717x123    24197b      14b Total

                File:    NrecxLrec    Unix        Z  Explanation
        IV/26/ReadMe:     111x80        14b       7b Ludendorff Catalog of stars in M13
   IV/26/catalog.dat:    1136x90       179b       0b The catalog of stars in M13
     IV/26/notes.dat:     706x80        84b       0b Notes on individual stars
    IV/26/notes2.dat:     234x80        29b       0b Remarks on Scheiner's
IV/26         =====>:    2187x90       306b       7b Total

                File:    NrecxLrec    Unix        Z  Explanation
       IV/27A/ReadMe:     203x80        25b       0b HD-DM-GC-HR-HIP-Bayer-Flamsteed Cross Index (Kostjuk, 2002)
 IV/27A/addendum.dat:     277x77        44b       0b Addendum (see the "History" section below)
  IV/27A/catalog.dat:    3690x77       564b     242b HD-DM-GC-HR-HIP-Bayer-Flamsteed Cross Index
     IV/27A/refs.dat:      26x143        6b       5b List of sources catalogs and atlases
   IV/27A/table1.dat:    1210x64        81b       0b List of alternative names for 454 stars
   IV/27A/table1.ori:    1224x64       157b       0b 
   IV/27A/table2.dat:      58x99        13b       5b List of alternative HD number or DM number
   IV/27A/table3.dat:     807x100      161b      35b List of proper names for 345 stars from the
IV/27A        =====>:    7495x143     1051b     287b Total

                File:    NrecxLrec    Unix        Z  Explanation
       IV/28A/ReadMe:     140x80        17b       8b Catalog of high PM stars (Ivanov, 2002)
     IV/28A/gcvs.dat:    2399x43        92b       0b Cross-ids for variables
      IV/28A/ids.dat:  265696x17      9342b    2510b Other identifications
     IV/28A/ncat.dat:      68x166       12b       0b Catalog numbers
    IV/28A/stars.dat:  230099x51     20517b    6277b Stars with FONAK1, AC2000, GSC numbers
IV/28A        =====> obsolete <=== 04-Jun-2007: (by Francois Ochsenbein) See I/306

                File:    NrecxLrec    Unix        Z  Explanation
        IV/29/ReadMe:      72x80         9b       4b Identification of Dahlmark variables (Skiff+, 1997)
     IV/29/notes.dat:      55x80         8b       4b Individual notes
    IV/29/tables.dat:     213x73        32b      11b Dahlmark Variables LD 8 - LD 220
IV/29         =====>:     340x80        49b      19b Total

                File:    NrecxLrec    Unix        Z  Explanation
        IV/30/ReadMe:     134x80        17b       0b Cross-id. of stars with high-proper motions. V2. (Ivanov, 2008)
      IV/30/gcvs.dat:    2494x43       104b      26b Cross-identification for variable stars
       IV/30/ids.dat:  313282x20     12851b    3095b Other identifications of stars
      IV/30/ncat.dat:      66x166       11b       5b Catalog numbers
     IV/30/stars.dat:  493180x64     52903b   14011b Stars with Cross-identifications
     IV/30/types.dat:      18x73         3b       2b Codes for types
IV/30         =====>:  809174x166    65889b   17139b Total

                File:    NrecxLrec    Unix        Z  Explanation
        IV/32/ReadMe:     153x80        18b       0b Cross-id. of stars with high-proper motions. V3. (Ivanov, 2011)
     IV/32/gcvs3.dat:    3451x43       134b      32b Cross-identification for variable stars
      IV/32/ids3.dat:  222667x21      9569b    2223b Other identifications of stars
     IV/32/ncat3.dat:      75x166       12b       5b Catalog numbers
   IV/32/stars3.dat: 4198061x78     458711b  101279b Stars with AC2000, UCAC2/UCAC3, GSC numbers
IV/32         =====>: 4424407x166 8  468444b  103539b Total

                File:    NrecxLrec    Unix        Z  Explanation
        IV/33/ReadMe:     101x80        13b       0b Master Catalogue towards the Magellanic Clouds (MC2) (Delmotte+ 2002)
       IV/33/mc2.sam:    1003x243      478b      74b The MC2
IV/33         =====>:    1104x243      491b      74b Total

                File:    NrecxLrec    Unix        Z  Explanation
        IV/34/ReadMe:     187x80        23b       0b K2 Ecliptic Plane Input Catalog (EPIC) (Huber+, 2017)
      IV/34/epic.sam:    1000x528     1035b     103b *Sample output of the K2 EPIC catalog
IV/34         =====>:    1187x528     1058b     103b Total

                File:    NrecxLrec    Unix        Z  Explanation
        IV/35/ReadMe:     121x80        16b       0b Gaia DR2-WISE Galactic Plane Matches (Wilson+, 2018)
 IV/35/wn18_b10.dat: 118964029x283207 65987861b 24154998b IDs, positions, magnitudes and probabilities
 IV/35/wn18_b10.fit: 7435257x2880 60 41823322b 25646389b 
IV/35         =====>: 126399407x2870047 107811199b 49801387b Total

                File:    NrecxLrec    Unix        Z  Explanation
IV/36/GaiaIPHAS_full.fits: 817503x408640 4598456b 3706003b 
IV/36/GaiaIPHAS_light.fits: 311673618240 1753162b 1290155b 
IV/36/GaiaKIS_full.fits: 78568x28840 441946b 330578b 
IV/36/GaiaKIS_light.fits: 31160x2800 175276b 121166b 
        IV/36/ReadMe:     143x80        18b       0b Gaia-IPHAS/KIS Value-Added Catalogues (Scaringi+, 2018)
 IV/36/giphasl.dat: 7479991x181  1 2658905b  943357b Light version of the Gaia-IPHAS value-added
    IV/36/gkisl.dat:  773464x180    273433b   91206b Light version of the Gaia-KIS value-added
IV/36         =====>: 9492502x288051 9901196b 6482465b Total

                File:    NrecxLrec    Unix        Z  Explanation
        IV/38/ReadMe:     416x80        52b       0b TESS Input Catalog - v8.0 (TIC-8) (Stassun+, 2019)
       IV/38/tic.sam:    1000x1190    2328b     488b Transiting Exoplanet Survey Satellite (TESS)
IV/38         =====>:    1416x1190    2380b     488b Total

                File:    NrecxLrec    Unix        Z  Explanation
        IV/39/ReadMe:     531x80        67b       0b TESS Input Catalog version 8.2 (TIC v8.2) (Paegert+, 2021)
     IV/39/tic82.sam:    1000x1180    2308b     486b Transiting Exoplanet Survey Satellite (TESS)
IV/39         =====>:    1531x1180    2375b     486b Total

