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Year 2001 Archive News
News Archives
28 November 2001
An engineering run at the 90-inch was used to test the new autoguider. The guide camera, a 512 x 512 (1024 x 512 unmasked) frame transfer CCD camera, was mounted at the erfle eyepiece port. The autoguiding software combines Tcl/Tk, LabVIEW, and C routines to provide a robust user friendly interface. We successfully closed the loop between the autoguider and the telescope. The system will be used at several Steward telescopes. Additional photos of the run are available on the Pictures page.

Autoguider GUI GuideCamera
2 November 2001
Steward Observatory Internal Symposium - The 90prime presentation gives and overview and status report for the instrument. Many of the photos used for the presentation are available on the Pictures page.

90prime Internal Symposium Presentation Title Slide
07 October 2001
The second 90prime engineering run was conducted during the weekend of October 5, 2001. All the engineering goals were achieved. The ring changing and dewar mounting procedures went smoothly. The dewar was filled using the new LN2 system. The next engineering run is planned for early February 2002. Additional photos of the run are available on the Pictures page.

90Prime October Engineering
18 September 2001
The optics can has been assembled, without the optics, for use during the upcoming engineering run (Oct 5-7, 2001). Additional photos of the optics can are available on the Pictures page.

90Prime Optics Can
2 August 2001
The first 90prime engineering run was conducted during the week of July 31, 2001. The run was a deemed a success. Additional photos taken during the engineering run are available on the Pictures page.

90Prime Instrument - Engineering Run
3 June 2001
A 90prime poster was presented at the 198th Meeting of the American Astronomical Society in Pasadena, CA on June 5, 2001. The poster is available in several formats on the Documentation page.

90Prime 198th AAS Poster - June 2001
30 May 2001
The "lens can" or "optics can" was delivered to Steward on May 30th. Additional photos of the lens can are available on the Pictures page.

90Prime Lens Can - Delivered to Steward
15 February 2001
An engineering run was performed at the 90" with a wooden mock-up of the prime focus instrument to check the dome clearance. It appears there will be tight clearance throughout the dome. Additional photos of the mock instrument are available on the Pictures page.

90Prime Instrument - Wooden Mock-up
25 January 2001
The "big steel" or "new top ring" was delivered to Kitt Peak on Jan 25th. Additional photos of the big steel are available on the Pictures page.

90Prime Big Steel - Unloading at Kitt Peak
19 January 2001
The Infrared Laboratories dewar was delivered to the Imaging Technology Laboratory (ITL) on Jan 19th. Additional photos of the dewar are available on the Pictures page.

90Prime Dewar