Editing Jodrell Bank Observatory (section)

== Other single dishes ==
<!-- Please note: "42ft" and "7m" are names, not units of size. User:Mike Peel -->
[[File:7m telescope, Jodrell Bank Observatory 2016 001.jpg|thumb|upright=1.2|The 7 m telescope for undergraduate teaching, with the Lovell telescope directly behind]]
A 50&nbsp;ft (15&nbsp;m) alt-azimuth dish was constructed in 1964 for astronomical research and to track the [[Zond 1]], [[Zond 2]], [[Ranger 6]] and [[Ranger 7]] space probes<ref name="earlyprobetracking">{{cite web | url=http://www.jodrellbank.manchester.ac.uk/history/tracking/ | title=Jodrell Bank's role in early space tracking activities | publisher=Jodrell Bank Observatory | access-date=2007-06-10 | url-status=dead | archive-url=https://web.archive.org/web/20081027221051/http://www.jodrellbank.manchester.ac.uk/history/tracking/ | archive-date=27 October 2008}}</ref> and [[Apollo 11]].<ref>{{cite web | url=http://www.open2.net/historyandthearts/history/three_transcript_p.html | title=The other space race: Transcript | publisher=[[BBC]]/[[Open University]] | access-date=2007-06-14}}</ref> After an accident that irreparably damaged the 50&nbsp;ft telescope's surface, it was demolished in 1982 and replaced with a more accurate telescope, the "42&nbsp;ft". The 42&nbsp;ft (12.8&nbsp;m) dish is mainly used to observe pulsars, and continually monitors the [[Crab Pulsar]].<ref>{{cite web | url=http://www.jb.man.ac.uk/booklet/Pulsars.html | title=Jodrell Bank—Pulsars | publisher=Jodrell Bank Observatory|access-date=2007-06-10}}</ref>

When the 42&nbsp;ft was installed, a smaller dish, the "7&nbsp;m" (actually 6.4 m, or 21&nbsp;ft, in diameter) was installed and is used for undergraduate teaching. The 42&nbsp;ft and 7&nbsp;m telescopes were originally used at the [[RAAF Woomera Range Complex|Woomera Rocket Testing Range]] in [[South Australia]].<ref>{{cite web | url=http://www.jodrellbank.manchester.ac.uk/tour/lobs.html | title=JBO—Lovell Observing Room | access-date=2007-06-10 | publisher=Jodrell Bank Observatory | url-status=dead | archive-url=https://web.archive.org/web/20110720151959/http://www.jodrellbank.manchester.ac.uk/tour/lobs.html | archive-date=20 July 2011}}</ref> The 7&nbsp;m was originally constructed in 1970 by the [[Marconi Company]].<ref name="7m">{{cite web | url=http://www.jb.man.ac.uk/tech/7m/7m_telescope.html | title=NRAL—7&nbsp;m Telescope | access-date=2008-05-08|publisher=Jodrell Bank Observatory}}</ref>

A Polar Axis telescope was built in 1962. It had a circular 50&nbsp;ft (15.2&nbsp;m) dish on a [[polar mount]],<ref name="jbtelescopes_232">Lovell, ''Jodrell Bank Telescopes'', p. 232</ref> and was mostly used for moon radar experiments. It has been decommissioned. An {{convert|18|in|mm|adj=on}} reflecting optical telescope was donated to the observatory in 1951<ref name="history_manuni_37">Pullan, ''A history of the University of Manchester 1951–73'', p. 37</ref> but was not used much, and was donated to the Salford Astronomical Society around 1971.<ref name="salford_astro_society">{{cite web | url=http://www.salfordastro.org.uk/salford-observatory/ | title=Salford Astronomical Society—Observatory | access-date=2007-04-23 | publisher=Salford Observatory | url-status=dead | archive-url=https://web.archive.org/web/20101202234118/http://www.salfordastro.org.uk/salford-observatory/ | archive-date=2 December 2010}}</ref>