Abstract
We report on the upgraded One Degree Imager (ODI) at the WIYN 3.5 meter telescope at the Kitt Peak Observatory after the focal plane was expanded by an additional seventeen detectors in spring 2015. The now thirty Orthogonal Transfer Array CCD detectors provide a total field of view of 40' x 48' on the sky. The newly added detectors underwent a design revision to mitigate reduced charge transfer efficiency under low light conditions. We discuss the performance of the focal plane and challenges in the photometric calibration of the wide field of view, helped by the addition of telescope baffles. In a parallel project, we upgraded the instrument's three filter arm mechanisms, where a degrading worm-gear mechanism was replaced by a chain drive that is operating faster and with high reliability. Three more filters, a u' band and two narrow band filters were added to the instrument's complement, with two additional narrow band filters currently in procurement (including an Hα filter). We review the lessons learned during nearly three years of operating the instrument in the observatory environment and discuss infrastructure upgrades that were driven by ODI's needs.
| Original language | English (US) |
|---|---|
| Title of host publication | Ground-based and Airborne Instrumentation for Astronomy VII |
| Editors | Luc Simard, Luc Simard, Christopher J. Evans, Hideki Takami |
| Publisher | SPIE |
| Volume | 10702 |
| ISBN (Print) | 9781510619579 |
| DOIs | |
| State | Published - Jan 1 2018 |
| Event | Ground-based and Airborne Instrumentation for Astronomy VII 2018 - Austin, United States Duration: Jun 10 2018 → Jun 14 2018 |
Other
| Other | Ground-based and Airborne Instrumentation for Astronomy VII 2018 |
|---|---|
| Country | United States |
| City | Austin |
| Period | 6/10/18 → 6/14/18 |
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Keywords
- CCD
- Ground based instrumentation
- Observatory Operations
- Orthogonal Transfer Array
- wide field imaging
- WIYN Observatory
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering
Cite this
The WIYN one degree imager in 2018 : An extended 30-detector focal plane. / Harbeck, Daniel R.; Lesser, Michael P; Liu, Wilson; Stupak, Bob; George, Ron; Harris, Ron; Poczulp, Gary; Rajagopal, Jayadev; Kotulla, Ralf; Ouellete, David; Hooper, Eric J.; Smith, Michael; Mason, Dustin; Onaka, Peter; Chin, Greg; Hunting, Emily; Christensen, Robert.
Ground-based and Airborne Instrumentation for Astronomy VII. ed. / Luc Simard; Luc Simard; Christopher J. Evans; Hideki Takami. Vol. 10702 SPIE, 2018. 1070229.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - The WIYN one degree imager in 2018
T2 - An extended 30-detector focal plane
AU - Harbeck, Daniel R.
AU - Lesser, Michael P
AU - Liu, Wilson
AU - Stupak, Bob
AU - George, Ron
AU - Harris, Ron
AU - Poczulp, Gary
AU - Rajagopal, Jayadev
AU - Kotulla, Ralf
AU - Ouellete, David
AU - Hooper, Eric J.
AU - Smith, Michael
AU - Mason, Dustin
AU - Onaka, Peter
AU - Chin, Greg
AU - Hunting, Emily
AU - Christensen, Robert
PY - 2018/1/1
Y1 - 2018/1/1
N2 - We report on the upgraded One Degree Imager (ODI) at the WIYN 3.5 meter telescope at the Kitt Peak Observatory after the focal plane was expanded by an additional seventeen detectors in spring 2015. The now thirty Orthogonal Transfer Array CCD detectors provide a total field of view of 40' x 48' on the sky. The newly added detectors underwent a design revision to mitigate reduced charge transfer efficiency under low light conditions. We discuss the performance of the focal plane and challenges in the photometric calibration of the wide field of view, helped by the addition of telescope baffles. In a parallel project, we upgraded the instrument's three filter arm mechanisms, where a degrading worm-gear mechanism was replaced by a chain drive that is operating faster and with high reliability. Three more filters, a u' band and two narrow band filters were added to the instrument's complement, with two additional narrow band filters currently in procurement (including an Hα filter). We review the lessons learned during nearly three years of operating the instrument in the observatory environment and discuss infrastructure upgrades that were driven by ODI's needs.
AB - We report on the upgraded One Degree Imager (ODI) at the WIYN 3.5 meter telescope at the Kitt Peak Observatory after the focal plane was expanded by an additional seventeen detectors in spring 2015. The now thirty Orthogonal Transfer Array CCD detectors provide a total field of view of 40' x 48' on the sky. The newly added detectors underwent a design revision to mitigate reduced charge transfer efficiency under low light conditions. We discuss the performance of the focal plane and challenges in the photometric calibration of the wide field of view, helped by the addition of telescope baffles. In a parallel project, we upgraded the instrument's three filter arm mechanisms, where a degrading worm-gear mechanism was replaced by a chain drive that is operating faster and with high reliability. Three more filters, a u' band and two narrow band filters were added to the instrument's complement, with two additional narrow band filters currently in procurement (including an Hα filter). We review the lessons learned during nearly three years of operating the instrument in the observatory environment and discuss infrastructure upgrades that were driven by ODI's needs.
KW - CCD
KW - Ground based instrumentation
KW - Observatory Operations
KW - Orthogonal Transfer Array
KW - wide field imaging
KW - WIYN Observatory
UR - http://www.scopus.com/inward/record.url?scp=85052614997&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85052614997&partnerID=8YFLogxK
U2 - 10.1117/12.2311528
DO - 10.1117/12.2311528
M3 - Conference contribution
AN - SCOPUS:85052614997
SN - 9781510619579
VL - 10702
BT - Ground-based and Airborne Instrumentation for Astronomy VII
A2 - Simard, Luc
A2 - Simard, Luc
A2 - Evans, Christopher J.
A2 - Takami, Hideki
PB - SPIE
ER -