The original ISOCAM Observer's Manual was intended to give as complete
an overview of the instrument as possible. After 7 months of
operation, it is still found to be quite complete and relatively
up-to-date with the actual performance of the instrument in
flight. Yet, however hard we tried, some issues were only partially
covered in the first issue of the manual. Furthermore, flying ISOCAM
has broadened and deepened our knowledge of its performance. It is
therefore necessary to gather all these new informations in a single
place, hence this addendum.
We stress that this is only an addendum to the observer's manual and
that we assume that the reader is already familiar with ISOCAM's
concepts. If this is not the case, one should obtain and read first a
copy of the original ISOCAM Observer's Manual.
The addendum is structured as follows: Chapter 2 addresses issues
already known before launch but which could not be included before the
print date of the ISOCAM Observer's Manual, while Chapter 3 discuss
topics unknown before launch and so not addressed in the ISOCAM
Observer's Manual. Most of those topics appear especially important by
seeing the in-orbit performance of the instrument. In Chapter 4 we
describe the changes of the observing strategy caused by the potential
saturation effect while arriving in the ISOCAM parallel mode and those
caused by the missing column 24. In Chapter 5 the general topic of
observing times estimates is touched. A page by page correction of the
ISOCAM Observer's Manual is given in Chapter 6. Detailed examples on
how to set up observations of bright targets which have an LW2 flux of
more than 0.6 Jy are given for each AOT in Chapter 7.