B/int Isaac Newton Telescope Wide Field Survey (CASU 2002)
Isaac Newton Telescope Wide Field Survey
Cambridge Astronomical Survey Unit
<Cambridge Astronomical Survey Unit (Cambridge UK)>
ADC_Keywords: Surveys
Keywords: Observatory log
Description:
The INT Wide Field Survey (WFS) is using the Wide Field Camera (∼0.3
square degrees) on the 2.5m Isaac Newton Telescope (INT). The project
was initiated in August 1998 and is expected to have a duration of up
to five years. Multicolour data will be obtained over 200+ square
degrees to a typical depth of ∼25 mag (u' through z'). The data is
publically accessible via the Cambridge Astronomical Survey Unit to UK
and NL communities from day one, with access to the rest of the world
after one year.
This observation log lists all observations older than the one year
proprietary period.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
obs.dat 114 8173 Observation log
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See also:
http://www.ast.cam.ac.uk/~wfcsur : Home page of INT Wide Field Survey
Byte-by-byte Description of file: obs.dat
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Bytes Format Units Label Explanations
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1- 18 A18 --- Target Target name
20- 29 I10 mas RAmas RA (J2000) decimal milliarcseconds (1)
30- 39 I10 mas DEmas DEC (J2000) decimal milliarcseconds (1)
41- 49 A9 --- Epoch Epoch of observation (1)
50- 53 I4 yr Obs.Y Observation date year
54- 55 I2 "month" Obs.M Observation date month
56- 57 I2 d Obs.D Observation date day
59- 65 F7.1 s Obs.s Start time (UT seconds)
67- 73 F7.2 s Exp Exposure time (seconds)
75- 85 A11 --- FiltSys Filter system (2)
87- 97 A11 --- FiltName Filter name (2)
99-104 I6 --- RunNo Run number
106-109 I4 0.1nm lambda Central wavelength (2)
111-114 I4 0.1nm width ? Filter width (2)
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Note (1): the position was converted to J2000 according to the original
equinox specified in the 'Epoch' column. However, non-understandable
values in the 'Epoch' column were assumed to be J2000.
Note (2): Filter name and system are described at
http://www.ast.cam.ac.uk/~wfcsur/filters.html
The values of lambda and width were derived from the ING filter database
at http://www.ing.iac.es/~quality/filter/filt4.html;
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Acknowledgements: We kindly thank Jim Lewis
for help in the preparation of this document.
(End) Mark Allen [CDS] 11-Apr-2002