
None.
| Total Times | Time Observed | Time Engineering | Time lost technical | Time lost weather | Time lost other | Total Program Time |
|---|---|---|---|---|---|---|
| 2021-09-23 | 5.25 | 4.0 | 0.0 | 0.0 | 0.0 | 9.25 |
Links
[1] mailto:alistair.walker@noirlab.edu
[2] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/39766/delete?destination=print/content/enr-ctio-blanco-4-m-2021-09-23
[3] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/39766/edit?destination=print/content/enr-ctio-blanco-4-m-2021-09-23
[4] mailto:ssheppard@carnegiescience.edu
[5] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/39767/delete?destination=print/content/enr-ctio-blanco-4-m-2021-09-23
[6] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/39767/edit?destination=print/content/enr-ctio-blanco-4-m-2021-09-23
[7] mailto:alfredo.zenteno@noirlab.edu
[8] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/39768/delete?destination=print/content/enr-ctio-blanco-4-m-2021-09-23
[9] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/39768/edit?destination=print/content/enr-ctio-blanco-4-m-2021-09-23
[10] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/add/node/18163?destination=print/content/enr-ctio-blanco-4-m-2021-09-23
Engineering during first half. Tests of the new narrow band filter N419. Images look great with the new filter. We recommend to use 1200ms in the guider when using this filter. Star flats for N419, g and i were done under photometric conditions. Also, sequence of 2 spectrophotometric standards were taken in each CCD of the camera. Unfortunately there was not enough time to do a DECal scan of the new filter. It will need to be done either on an upcoming cloudy night or during the October eng.
The level "observer" cannot make changes in the exposure time of the guider yet (this was a feature to be tested today).
Evening twilight was used to follow up an interesting object by S. Sheppard.