In this task, you will be given a passage to read. A fill in the blank question will be given to you. Your answer should fit the blank appropriately.

WASP @-@ 44 was observed between July and November 2009 by the WASP @-@ South , a station of the SuperWASP planet @-@ searching program based at the South African Astronomical Observatory . Observations of the star revealed a periodic decrease in its brightness . WASP @-@ South , along with the SuperWASP @-@ North station at the Roque de los Muchachos Observatory on the Canary Islands , collected 15 @,@ 755 photometric observations , allowing scientists to produce a more accurate light curve . Another set of observations yielded a 6 @,@ 000 point photometric data set , but the light curve was prepared late and was not considered in the discovery paper . In 2010 , a European science team investigated the star using the CORALIE spectrograph and collected seventeen spectra of WASP @-@ 44 . From the spectra , radial velocity measurements were extrapolated . Analysis of collected CORALIE data ruled out the possibility that the detected radial velocity was caused by the blended spectrum of a spectroscopic binary star , supporting the possibility that the body orbiting WASP @-@ 44 was indeed a planet , designated WASP @-@ 44b . The Leonhard Euler Telescope at La Silla Observatory in Chile was used to follow up on the discovery circling WASP @-@ 44 , searching for a point at which the planet transited , or crossed in front of , its host star . One transit was detected . WASP @-@ 44 , its recently discovered planet , the planets orbiting WASP @-@ 45 and WASP @-@ 46 , and a discussion exploring the validity of the common assumption amongst scientists that closely orbiting Hot Jupiter planets have highly circular orbits unless proven otherwise , were reported in a single discovery paper that was published on May 17 , 2011 by the Royal Astronomical Society . The paper was submitted to the Monthly Notices of the Royal Astronomical Society on May 16 , 2011 . fill in the blank : WASP @-@ 44 was observed between July and November 2009 by the WASP @-@ South , a station of the SuperWASP planet @-@ searching __________________ based at the South African Astronomical Observatory .
program

Mint records indicate the first gold dollars were produced on May 7 , 1849 ; Longacre 's diary notes state instead that the first were struck on May 8 . A few coins in proof condition were struck on the first day , along with about 1 @,@ 000 for circulation . There are five major varieties of the 1849 gold dollar from Philadelphia , made as Longacre continued to fine @-@ tune the design . Mintmarked dies were sent by Longacre 's Engraving Department at the Philadelphia Mint to the branch mints at Charlotte , Dahlonega ( in Georgia ) , and New Orleans ; coins struck at the branches resemble some of the types issued from Philadelphia , depending on when the dies were produced . Of the coins struck at the branch mints in 1849 , only pieces struck at Charlotte ( 1849 @-@ C ) exist in multiple varieties ; most are of what is dubbed the Closed Wreath variety . Approximately five of the 1849 @-@ C Open Wreath are known ; one , believed the finest surviving specimen , sold at auction for $ 690 @,@ 000 in 2004 , remaining a record for the gold dollar series as of 2013 . One of the changes made during production was the inclusion of Longacre 's initial L on the truncation of Liberty 's neck , the first time a U.S. coin intended for full @-@ scale production had borne the initial of its designer . All issues beginning in 1850 bear the Closed Wreath . fill in the blank : Mint records indicate the first gold dollars were produced on May __________________ , 1849 ; Longacre 's diary notes state instead that the first were struck on May 8 .
7

Most aerodromes used for public transport operations are required to be licensed by the CAA . To be granted a licence an aerodrome operator must satisfy the CAA that : the physical conditions at the aerodrome , and its environs , are acceptable ; the scale of equipment , and facilities provided , are adequate for the flying activities which are expected to take place ; an effective safety management system is in place ; and that staff are competent and , where necessary , suitably qualified . Aerodromes classified as developed GA airfields or larger by the GASAR study are , with few exceptions , licensed . Only two basic GA airfields , Silverstone and Duxford , are licensed , and all airstrips are unlicensed . The Light Aviation Airports Study Group , a joint CAA @-@ industry initiative , was established in 2005 to review the regulation of light aviation aerodromes . A particular focus of this group was a review of the restrictions placed on unlicensed aerodromes . The group concluded that the requirement for public transport operations to be conducted only from licensed aerodromes should be further reviewed in the context of corresponding international and European requirements . It also recommended that restrictions on flight training at unlicensed aerodromes should be lifted , and this was permitted from April 2010 .fill in the blank :Most aerodromes used for public transport operations are required to be licensed by the __________________ .
CAA