MDM Observatory's 8K CCD array project based at Columbia Astrophysics Laboratory:
RESCUE PROCEDURES IN CASE OF FAILING EXPOSURES
Arlin Crotts e-mail: (arlinastro.columbia.edu) Telephone: (212) 854-7899 |
IN THE UNLIKELY EVENT THAT EXPOSURES PERSIST IN FAILING,
try the following procedures (in increasing
order of severity):
1) power the instrument off and on i.e.
"pof",
turn off SLAVE,
turn off MASTER,
wait 60 seconds,
turn on MASTER,
turn on SLAVE,
and "pon".
If that doesn't work after three attempts,
2) turn off the instrument as in (1),
exit DetCom using "detach",
turn the instrument back on as in (1),
then restart DetCom.
If (2) doesn't work,
3) turn off the instrument as in (1),
exit DetCom as in (2),
then press the reset button (the white button next to the green LED) on the
back of each of the two fiber optic communications cards on the back of the
computer ("etna" or "vesuvius")
bring up the power on the instrument,
then start DetCom.
If (3) doesn't work,
4) turn off the instrument as in (1),
exit DetCom as in (2 or 3),
then turn off the acquisition computer (etna or vesuvius) by terminating all
disk processes and pressing the "a"
and "Stop" keys together then flipping the power switch at the boot prompt.
After 10 seconds, turn the computer back on by flipping the switch,
log in as "obs24m" or "obs13m",
bring up the power on the instrument,
then start DetCom.
IF ALL FOUR OF THESE PROCEDURES FAIL, GET HELP.
If any of these procedures become necessary, successful or not, please contact
Arlin Crotts (arlinastro.columbia.edu) to let him know the details.