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: http://xmm.vilspa.esa.es/sas/7.1.0/doc/esky2det/node4.html
Дата изменения: Mon Jul 9 03:47:47 2007 Дата индексирования: Sat Dec 22 09:46:04 2007 Кодировка: Поисковые слова: п п п п п п п п п п п п п п |
The sky position of a single source may be entered via the parameters ra, dec and (optionally) errorradius. These are parameters of type angle and can therefore be provided in a variety of formats. Eg:
ra=32h06m19.6s dec=-07d44m56.7s errorradius=00d00m01.0s
See the task param documentation for further details.
In this mode, the output positions are printed to a single line of standard output. The format of this output line is given in the following examples.
esky2det datastyle=user ra=03h47m40.2s dec=24d21m54.62s outunit=raw
gives the output
# Instrument: EPN # Coord sytem of output is RAWXY (PIXCOORD1). # Source RA = 56.917500 deg. # Source dec = 24.365171 deg. # # rawX rawY ccd On chip? 32.05 188.69 8 T
32.05 188.69 8 T
This style is suitable for batch running of esky2det from scripts.
esky2det datastyle=user ra=03h46m25.3s dec=24d18m30.3s outunit=det witherrorradius=yes errorradius=00d00m05.0s
which gives the output
# Instrument: EPN # Coord sytem of output is DETXY (CAMCOORD2 but in units of 0.05 arcsec). # Source RA = 56.605415 deg. # Source dec = 24.308416 deg. # # detX detY det err -15043.9 -2111.8 100.0
# Instrument: EPN # Coord sytem of output is RAWXY (PIXCOORD1). # Source RA = 56.605415 deg. # Source dec = 24.308416 deg. # # rawX rawY ccd On chip? X err Y err 40.11 189.72 12 T 0.455E-01 0.455E-01
For the convenience of script authors, I give below the number fields for all four combinations of outunit and witherrorradius:
# Instrument: <inst> # Coord sytem of output is RAWXY (PIXCOORD1). # Source RA = <ra> deg. # Source dec = <dec> deg. # # rawX rawY ccd On chip? +xxx.xx +xxx.xx xx x 123456789 123456789 12345678
# Instrument: <inst> # Coord sytem of output is RAWXY (PIXCOORD1). # Source RA = <ra> deg. # Source dec = <dec> deg. # # rawX rawY ccd On chip? X err Y err +xxx.xx +xxx.xx xx x x.xxxE+xx x.xxxE+xx 123456789 123456789 123456789 123456789 123456789 123456
# Instrument: <inst> # Coord sytem of output is DETXY (CAMCOORD2 but in units of 0.05 arcsec). # Source RA = <ra> deg. # Source dec = <dec> deg. # # detX detY +xxxxx.x +xxxxx.x 123456789 12345678
# Instrument: <inst> # Coord sytem of output is DETXY (CAMCOORD2 but in units of 0.05 arcsec). # Source RA = <ra> deg. # Source dec = <dec> deg. # # detX detY det err +xxxxx.x +xxxxx.x xxxxx.x 123456789 123456789 123456789
If outunit=`det', and the source is outside the field of view of the instrument, the task halts with an error. If outunit=`raw' and the source is not found to lie within the bounds of any CCD, a warning message is issued; however the task still prints a RAWX/Y position, this being the position of the source in the RAWX/Y coordinate system of the nearest CCD. In this case the value of the `On chip?' column is `F' rather than `T'.
XMM-Newton SOC/SSC -- 2007-07-08