67D0372B.html


Last update of this page: Thu Apr 24 17:45:02 2003
Last update of the USG file: Jul 17 09:42:34 2002

Major Instrument Modes: ISAAC SW LR spectroscopy

RA Range: 18.2 (single object)

Constraint set (Typical seeing, Transparency,Airmass, FLI, Moon distance): 0.9 2CLR 1.2 1 30


Pre-imaging run? No! Chilean run? No! Special calibrations? No!
Time critical? No! ToO? No! Carry-over run? No!


Special Remarks:


 
 
  Low resolution spectroscopy of a binary system containing a millisecond 
pulsar  over its orbital period. The only OB supplied lasts for two hours,
but this has to be accepted as the observations should be continuous for
this period. Low airmass required to minimize changes in telluric features
during the execution of the observation.

  Original seeing constraint of 0"6 rather strong for a B-class program, 
even more so taking into account that it has to be maintained for two whole 
hours. User thus increased it to 0"9.

  User supplies a visible finding chart, and has no infrared chart.
Beware of the probably very different appearance of the field, of low
galactic latitude, in the infrared.

  Flat field and wavelength calibration attached at the end of the
template. Not clear that is really needed, but anyway user is willing to
pay time for it.

  Acquisition on the slit relies on the two stars marked as "A" and "B"
on the finding chart by the click-on-two-stars procedure; no position
angle is predefined. Coupled with the wavelength of the finding chart
pointed out before, acquisition may be difficult. 

  Part C of this program is a follow-up based on the outcome of the
execution of the present part B.


 


Information about the progress of this run:

Run status page 67.D-0372B

README of this run:

67.D-0372B.README