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VI/90               Wide-Field Plate Database   (Tsvetkov+ 1997)

Wide-Field Plate Database Tsvetkov M.K., Stavrev K.Y., Tsvetkova K.P., Mutafov A.S., Semkov E.H. <Institute of Astronomy, Bulgarian Academy of Sciences (1997)>
ADC_Keywords: Atlases ; Plate data ; Observatory log ; Photographic catalog Description: The Wide-Field Plate Database (WFPDB) contains the descriptive information for the astronomical wide-field (~>1deg.) photographic observations stored in numerous archives all over the world. When finished it will provide an on-line access to the information for about 2 million observations from nearly 300 archives, obtained since the end of last century. Presently the WFPDB includes data for about 330 000 observations from 57 plate catalogues. About 120 000 observations more from 32 plate catalogs are in preparation to be included in the database. The WFPDB provides for each observation information for the corresponding archive, the parameters of the observational instrument, the observation parameters (position on sky, observation time, object name, method, exposure time, emulsion type, filter type, spectral band, plate size), as well as data on the plate quality, comments, and observers. Data on the plate availability and digitization will be supplemented in the WFPDB in the future. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file maindata 104 323635 Main data file archives 212 294 List of plate archives quality 80 51549 Plate quality data notes 80 53217 Notes observer 57 35993 Observers' names
Byte-by-byte Description of file: archives
Bytes Format Units Label Explanations
1- 3 A3 --- IDobs *WFPDB observatory identifier 4- 6 I3 cm IDins *Instrument aperture 7 A1 --- IDsuf1 *[A-Z ] Suffix to the instrument identifier 9- 25 A17 --- LOCs Location of the plate archive, town (site) 27- 40 A14 --- LOCc Location of the plate archive, country 42- 64 A23 --- OBSn Observatory, name 66- 83 A18 --- OBSs Observatory, site 85- 95 A11 --- OBSc Observatory, country 97- 99 I3 --- MNo ? Marsden's number 101 A1 --- TZ- Time zone, sign 102-103 I2 h TZ ? Time zone 105 A1 --- LON- ? Observatory longitude, sign 106-108 I3 deg LONd ? Observatory longitude, deg 110-113 F4.1 arcmin LONm ? Observatory longitude, arcmin 115 A1 --- LAT- ? Observatory latitude, sign 116-117 I2 deg LATd ? Observatory latitude, deg 119-122 F4.1 arcmin LATm ? Observatory latitude, arcmin 124-127 I4 m ALT ? Observatory altitude 129-130 I2 --- MULT ? Multiplicity of telescope cameras 131 A1 --- --- [x] Sign 'x' 132-135 F4.2 m APR ? Clear aperture of the telescope 137-140 F4.2 m MD ? Diameter of telescope mirror 142-146 F5.2 m FL ? Focal length of the telescope 148-151 I4 arcsec/mm SCL ? Plate scale 153-155 A3 --- ITYPE *Instrument type 157-161 F5.1 deg FIELD ? Field angular dimension 163-166 I4 yr YEAR1 ? Year of beginning of telescope operation 168-171 I4 yr YEAR2 ? Year of end of telescope operation 173 A1 --- PF [F ] Indication 'F' for 'film' 175-180 I6 --- NPd ? Number of direct plates 181 A1 --- NPUNd [: ] Uncertainty of the number of plates 183-184 A2 --- CFORMd *Plate catalog form (direct plates) 186-190 I5 --- NPs ?Number of objective prism plates 191 A1 --- NPUNs [: ] Uncertainty of the number of plates 193-194 A2 --- CFORMs *Plate catalog form (obj. prism plates) 196-197 A2 --- QUAL *[ABD ] Code for quality of the plate archive 199-212 A14 --- ANAME Astronomer in charge
Note on IDobs, IDins, IDsuf1: Fields from byte 1 to byte 7, taken together, constitute the WFPDB instrument identifier. Note on ITYPE: Ast - astrograph, Cam - camera, FEC - fish eye camera, Men - meniscus, RCr - Ritchey-Chretien, Rfl - reflector, Rfr - refractor, Sch - Schmidt Note on CFORMd, CFORMs: C - computer-readable form, T - printed table form, TC - computer-readable form in preparation Note on QUAL: A - very good, B - good, D - distributed
Byte-by-byte Description of file: maindata
Bytes Format Units Label Explanations
1- 3 A3 --- IDobs *WFPDB observatory identifier 4- 6 I3 cm IDins *Instrument aperture 7 A1 --- IDsuf1 *[A-Z] Suffix to the instrument identifier 8- 13 I6 --- IDno *Original plate number 14 A1 --- IDsuf2 *[A-Z] Suffix to the original plate number 15- 16 I2 h RAh ? Right ascension (hours) (J2000.0) 17- 18 I2 min RAm ? Right ascension (minutes) 19- 20 I2 s RAs ? Right ascension (seconds) 21 A1 --- DE- ? Declination sign (J2000.0) 22- 23 I2 deg DEd ? Declination, degrees 24- 25 I2 arcmin DEm ? Declination, arcminutes 26- 27 I2 arcsec DEs ? Declination, arcseconds 28 A1 --- CCOD [EMU] Code for Error, Missing data, or Uncertainty of coordinates 29- 32 I4 yr DATEy ? Date of observation, year (UT) 33- 34 I2 month DATEm ? Date of observation, month 35- 36 I2 d DATEd ? Date of observation, day 37- 38 I2 h UTh ? Observation time (hour) (UT) 39- 40 I2 min UTm ? Observation time (min) 41- 42 I2 s UTs ? Observation time (sec) 43 A1 --- TCOD [EMU] Code for Error, Missing data, or Uncertainty of observation time 44- 63 A20 --- OBJNAM Object or field designation 64- 65 A2 --- OBJTYP *Object type code 66- 67 I2 --- METHOD *? Method of observation code 68- 69 I2 --- MULTEX ? Multiplicity of exposure 70- 75 F6.1 min EXP *? Exposure time 76- 86 A11 --- EMULS Emulsion type 87- 93 A7 --- FILT Filter type 94- 95 A2 --- SPEC Spectral band 96- 97 I2 cm DIMx ? X dimension of plate 98- 99 I2 cm DIMy ? Y dimension of plate 100 I1 --- PQUAL [0,1] Pointer to file 'quality' 101 I1 --- PNOT [0,1] Pointer to file 'notes' 102 I1 --- POBS [0,1] Pointer to file 'observer' 103 I1 --- PAVA *[0,9] Pointer to file 'availability' 104 I1 --- PDIG *[0,1] Pointer to file 'digitisation'
Note on IDobs, IDins, IDsuf1, IDno, IDsuf2: Fields from byte 1 to byte 14, taken together, constitute the WFPDB plate identifier. Fields from byte 1 to byte 7 constitute the WFPDB instrument identifier. Note on OBJTYP: Object type in WFPDB is coded as follows: A1 - planet A2 - moon A3 - sun A4 - asteroid A5 - comet S1 - star S2 - double star S3 - variable star S4 - star cluster S5 - HII region S6 - nebula S7 - planetary nebula S8 - supernova S9 - fundamental star SR - reference star around a radio source G1 - galaxy G2 - QSO G3 - group of galaxies G4 - cluster of galaxies G5 - supercluster G6 - void F - field Remark: Object type for most of the observations is not yet available in the WFPDB. Note on METHOD: Method of observation in WFPDB is coded as follows: 1 - direct photograph 2 - direct photograph, multiexposure 3 - stellar tracks 4 - objective prism 5 - objective prism, multiexposure 6 - Metcalf's method 7 - proper motions 8 - no guiding 9 - out of focus 10 - test plate 11 - Hartmann test 12 - with mask 14 - sub-beam (Pickering) prism 24 - objective grating Note on EXP: For multiexposures with different duration of the separate exposures the 2nd, 3rd, ... exposures are given in file 'notes', if available in the original plate catalogs. Note on PAVA, PDIG: Files 'availability' and 'digitisation' are not available.
Byte-by-byte Description of file: quality
Bytes Format Units Label Explanations
1- 3 A3 --- IDobs *WFPDB observatory identifier 4- 6 I3 cm IDins *Instrument aperture 7 A1 --- IDsuf1 *[A-Z] Suffix to the instrument identifier 8- 13 I6 --- IDno *Original plate number 14 A1 --- IDsuf2 *[A-Z] Suffix to the original plate number 15 A1 --- CONT Continuation sign (1, 2, ...) or blank 16- 80 A65 --- QTEXT Text of quality information
Note on IDobs, IDins, IDsuf1, IDno, IDsuf2: See notes to description of file 'maindata'.
Byte-by-byte Description of file: notes
Bytes Format Units Label Explanations
1- 3 A3 --- IDobs *WFPDB observatory identifier 4- 6 I3 cm IDins *Instrument aperture 7 A1 --- IDsuf1 *[A-Z] Suffix to the instrument identifier 8- 13 I6 --- IDno *Original plate number 14 A1 --- IDsuf2 *[A-Z] Suffix to the original plate number 15 A1 --- CONT Continuation sign (1, 2, ...) or blank 16- 80 A65 --- NTEXT Text of note
Note on IDobs, IDins, IDsuf1, IDno, IDsuf2: See notes to the description of file 'maindata'.
Byte-by-byte Description of file: observer
Bytes Format Units Label Explanations
1- 3 A3 --- IDobs *WFPDB observatory identifier 4- 6 I3 cm IDins *Instrument aperture 7 A1 --- IDsuf1 *[A-Z] Suffix to the instrument identifier 8- 13 I6 --- IDno *Original plate number 14 A1 --- IDsuf2 *[A-Z] Suffix to the original plate number 15 A1 --- CONT Continuation sign (1, 2, ...) or blank 16- 57 A42 --- OBSNAM Observer's name(s)
Note on IDobs, IDins, IDsuf1, IDno, IDsuf2: See notes to the description of file 'maindata'.
Author's address: Dr. Milcho Tsvetkov E-mail, Internet: Project Manager Wide-Field Plates Database
(End) 15-May-1997
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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