Editing Digitized Sky Survey (section)

== Versions and source material ==
The term Digitized Sky Survey originally referred to the publication in 1994 of a digital version of an all-sky photographic atlas used to produce the first version of the [[Guide Star Catalog]].<ref>B. Lasker, "Digitized Optical Surveys at STScI", [http://www.stsci.edu/files/live/sites/www/files/home/news/newsletters/_documents/1994-volume011-issue02.pdf ''STScI Newsletter'' '''11''' No. 2], 39 (1994)</ref><ref>{{Cite journal |last1=Lasker |first1=Barry M. |last2=Sturch |first2=Conrad R. |last3=McLean |first3=Brian J. |last4=Russell |first4=Jane L. |last5=Jenkner |first5=Helmut |last6=Shara |first6=Michael M. |date=June 1990 |title=The Guide Star Catalog. I. Astronomical Foundations and Image Processing |url=https://ui.adsabs.harvard.edu/abs/1990AJ.....99.2019L |journal=The Astronomical Journal |volume=99 |pages=2019 |doi=10.1086/115483 |bibcode=1990AJ.....99.2019L |issn=0004-6256}}</ref> For the northern sky, the [[National Geographic Society – Palomar Observatory Sky Survey]] E-band (red, named after the [[Eastman Kodak]] IIIa-E [[Photographic emulsion|emulsion]] used), provided almost all of the source data (plate code "XE" in the survey).<ref>{{Cite web|url=https://archive.stsci.edu/dss/booklet_n.pdf|title=The Digitized Sky Survey: Discs 62–102 The Northern Hemisphere|website=archive.stsci.edu|access-date=2018-06-09}}</ref> For the southern sky, the J-band (blue, Eastman Kodak IIIa-J) of the [[European Southern Observatory|ESO]]/[[Science and Engineering Research Council|SERC]] Southern Sky Atlas (known as the SERC-J, code "S")<ref>R. M. West, "The Southern Sky Surveys—A review of the ESO Sky Survey Project", [https://www.eso.org/public/unitedkingdom/products/bulletins/bulletin_0010/ ESO Bulletin '''10'''], 25 (1974)</ref><ref name="cannon1984">{{Cite book |last=Cannon |first=Russell D. |title=Astronomy with Schmidt-Type Telescopes |chapter=Sky Surveys with the UK 1.2m Schmidt Telescope |date=1984 |editor-last=Capaccioli |editor-first=Massimo |chapter-url=https://link.springer.com/chapter/10.1007/978-94-009-6387-0_3 |series=Astrophysics and Space Science Library |volume=110 |language=en |location=Dordrecht |publisher=Springer Netherlands |pages=25–35 |doi=10.1007/978-94-009-6387-0_3 |isbn=978-94-009-6387-0|s2cid=197456149 }}</ref><ref name="roe">{{Cite web|url=http://www.roe.ac.uk/ifa/wfau/ukstu/platelib.html|title=The Plate Library at the Royal Observatory, Edinburgh|website=www.roe.ac.uk|access-date=2018-08-12}}</ref> and the "quick" V-band (blue or V in the [[UBV photometric system|Johnson–Kron–Cousins system]], Eastman Kodak IIa-D) SERC-J Equatorial Extension (SERC-QV, code "XV"), from the [[UK Schmidt Telescope]] at the Australian [[Siding Spring Observatory]], were used.<ref>{{Cite web|url=https://archive.stsci.edu/dss/booklet_s.pdf|title=The Digitized Sky Survey: Discs 1–61 The Southern Hemisphere|website=archive.stsci.edu|access-date=2018-08-12}}</ref> Three supplemental plates in the V-band from the SERC and Palomar surveys are included (code "XX"), with shorter exposure times for the fields containing the [[Andromeda Galaxy]], the [[Large Magellanic Cloud|Large]] and the [[Small Magellanic Cloud]].<ref>{{Cite web|url=https://archive.stsci.edu/dss/faq.html|title=MAST DSS FAQ|website=archive.stsci.edu|access-date=2018-08-16}}</ref> The publication of a digital version of these photographic collections has subsequently become known as the First Generation DSS or DSS1.

After the original 1994 publication, more digitizations were made using recently completed photographic surveys, and released as the Second Generation DSS or DSS2. Second Generation DSS consists of three spectra bands, blue, red, and [[near infrared]]. The red part was first to complete,<ref>{{Cite web|url=https://www.eso.org/sci/facilities/paranal/instruments/sinfoni/inst/faq.html|title=Frequently Asked Questions|website=www.eso.org|access-date=2018-08-16}}</ref> and includes the F-band (red, Eastman Kodak IIIa-F) plates from the [[Palomar Observatory Sky Survey II]], made with the [[Oschin Schmidt Telescope]] at [[Palomar Observatory]] for the northern sky.<ref>{{Cite journal |last1=Djorgovski |first1=S. G. |url=https://ui.adsabs.harvard.edu/abs/1998wfsc.conf...89D |title=The Palomar Digital Sky Survey (DPOSS) |last2=Gal |first2=R. R. |last3=Odewahn |first3=S. C. |last4=de Carvalho |first4=R. R. |last5=Brunner |first5=R. |last6=Longo |first6=G. |last7=Scaramella |first7=R. |journal=Wide Field Surveys in Cosmology |date=1998 |volume=14 |page=89 |location=eprint: arXiv:astro-ph/9809187|arxiv=astro-ph/9809187 |bibcode=1998wfsc.conf...89D }}</ref><ref>{{Cite journal |last1=Gal |first1=R. R. |last2=Carvalho |first2=R. R. de |last3=Odewahn |first3=S. C. |last4=Djorgovski |first4=S. G. |last5=Mahabal |first5=A. |last6=Brunner |first6=R. J. |last7=Lopes |first7=P. a. A. |date=December 2004 |title=The Digitized Second Palomar Observatory Sky Survey (DPOSS). II. Photometric Calibration |journal=The Astronomical Journal |language=en |volume=128 |issue=6 |pages=3082 |doi=10.1086/344941 |bibcode=2004AJ....128.3082G |s2cid=14464066 |issn=1538-3881|doi-access=free |arxiv=astro-ph/0210298 }}</ref><ref>{{Cite journal |last1=Odewahn |first1=S. C. |last2=de Carvalho |first2=R. R. |last3=Gal |first3=R. R. |last4=Djorgovski |first4=S. G. |last5=Brunner |first5=R. |last6=Mahabal |first6=A. |last7=Lopes |first7=P. A. A. |last8=Moreira |first8=J. L. Kohl |last9=Stalder |first9=B. |date=December 2004 |title=The Digitized Second Palomar Observatory Sky Survey (DPOSS). III. Star-Galaxy Separation |journal=The Astronomical Journal |language=en |volume=128 |issue=6 |pages=3092–3107 |doi=10.1086/425525 |bibcode=2004AJ....128.3092O |s2cid=17114755 |issn=0004-6256|doi-access=free }}</ref> Red band sources for the southern sky include the short red (SR) plates of the SERC I/SR Survey and Atlas of the Milky Way and Magellanic Clouds (referred to as AAO-SR in DSS2),<ref>{{Cite journal |last1=Hartley |first1=M. |last2=Dawe |first2=J. A. |date=1981 |title=The SRC Near-Infrared Survey of the Galactic Plane |url=https://www.cambridge.org/core/journals/publications-of-the-astronomical-society-of-australia/article/abs/src-nearinfrared-survey-of-the-galactic-plane/9B0B59DB5AF37253CCFE6179B02DEA3B |journal=Publications of the Astronomical Society of Australia |language=en |volume=4 |issue=2 |pages=251–254 |doi=10.1017/S1323358000016532 |bibcode=1981PASA....4..251H |s2cid=115232835 |issn=1323-3580|url-access=subscription }}</ref> the Equatorial Red (SERC-ER),<ref name="cannon1984"/> and the F-band Second Epoch Survey (referred to as AAO-SES in DSS2, AAO-R in the original literature),<ref>{{Cite book |last1=Morgan |first1=D. H. |last2=Tritton |first2=S. B. |last3=Savage |first3=A. |last4=Hartley |first4=M. |last5=Cannon |first5=R. D. |title=Digitised Optical Sky Surveys |chapter=Current and Future Programmes with the UK Schmidt Telescope |date=1992 |editor-last=MacGillivray |editor-first=H. T. |editor2-last=Thomson |editor2-first=E. B. |chapter-url=https://link.springer.com/chapter/10.1007/978-94-011-2472-0_3 |series=Astrophysics and Space Science Library |volume=174 |language=en |location=Dordrecht |publisher=Springer Netherlands |pages=11–22 |doi=10.1007/978-94-011-2472-0_3 |bibcode=1992ASSL..174...11M |isbn=978-94-011-2472-0}}</ref> all made with the UK Schmidt Telescope at Anglo-Australian Observatory.<ref>{{Cite web|url=http://archive.eso.org/dss/dss|title=ESO Online Digitized Sky Survey|website=archive.eso.org|access-date=2018-06-09}}</ref>