Magellan Telescopes Observatory Report

• Personnel

• Accomplishments

• Observing Statistics

• Common Problems

• Work in Progress

Personnel

• Jorge Bravo has been hired as a new Instrument Specialist

• Victor Meriño Has been promoted to Instrument Specialist. He will begin working in the new position as soon as the new telescope Operator is trained

• Mauricio Martinez has been hired as a new Telescope Operator and will begin working on September 27

• Jorge Araya has been hired as a new Telescope operator and is now in training

•Felipe Sanchez has been promoted to Programmer and will begin in his new position after training the new telescope operator

Accomplishments

• Three M1 cell Hard-Points in Clay were removed and serviced

• Work continues on the actuator air cylinder repairs• Complete service of Enclosure Trucks and Drives Both

Enclosures• Designed, built and installed the LDSS-3 cable wrap and

designed and install the Guider cable wrap• Installed IRMA, U of A 225 GHz and Ohio State PWV

sensors

The new LDSS-3 and guider wraps

Accomplishments (cont.)

• Iodine cell for MIKE installed on retractable arm (Dec)

•Software control was implemented in July

• S-H tests carried out at NASE and NASW ports to characterize collimation of M1, M2, and M3 (Dec, Jan, Mar)

• Adjustments of M3 tilt made in March and later have significantly decreased focal plane tilt

•Testing continues as weather and time permit

Accomplishments (cont.)

• Plan developed for long-term systems administration

• Internet access will be through CTIO (instead of the Chilean telephone company)

• The transition to CTIO system administration is underway

• El Pino and LCO network and fiber backbone upgrades are underway

•All new computer installations are being done by CTIO

Baade Telescope Instrumentation Usage:

21 Sep 2004-

12 Apr 2005

12 Apr 2005

14 Sep 2005

IMACS 63% 63%

PANIC 37% 37%

Observing Statistics

Clay Telescope Instrumentation Usage:

21 Sep 2004-

12 Apr 2005

12 Apr 2005-

14 Sep 2005

MIKE 51% 60%

MIKE fibers 7% 3%

LDSS-2 14% --

LDSS-3 13% 23%

MagIC + CCD 7% 9%

B&C 8% --

Other 5%

Observing Statistics

Baade + Clay Telescopes Instrumentation Usage:21 Sep 2004-

12 Apr 2005

12 Apr 2005

14 Sep 2005

IMACS 31% 32%

MIKE 26% 29%

MIKE fibers 3% 1%

PANIC 18% 19%

LDSS-2 7% --

LDSS-3 7% 12%

B&C 4% --

MagIC 4% 4%

Other -- 3%

Observing Statistics

May 2001 through Apr 2005

Long-Term Trends: Instrument Usage

May 01-Oct 01

Nov 01- Apr 02

May 02-Oct 02

Nov 02-Apr 03

May 03-Oct 03

Nov 03-Apr 04

Apr 04-Sep 04

Sep 04-Apr 05

Apr 05-Sep 05

MagIC+CCD 20% 31% 13% 18% 15% 8% 8% 4% 4%

B&C 44% 17% 34% 18% 20% 6% 9% 4% --

LDSS-2 28% 40% 31% 19% 10% 6% 2% 7% --

LDSS-3 -- -- -- -- -- -- -- 7% 12%

MIRAC 8% 3% 13% 4% -- -- -- -- --

Classic Cam -- 9% 9% 8% -- -- -- -- --

MIKE -- -- -- 31% 34% 30% 30% 26% 29%

MIKE fibers -- -- -- -- -- -- -- 3% 1%

PANIC -- -- -- 2% 17% 21% 15% 18% 19%

IMACS -- -- -- 4% 29% 36% 31% 32%

Other -- 3%

12 Apr-14 Sep 2005:

Observing Statistics

Baade Clay

% Open 66.8% 70.0%

% Lost to Weather 31.1% 28.7%

% Lost to Telescope 1.1% 0.6%

% Lost to Instrument 0.9% 0.1%

% Lost to Computer 0.1% 0.6%

% Total Downtime 2.1% 1.3%

Instrument Downtime:

21 Sep 2004-

12 Apr 2005

12 Apr 2005-

14 Sep 2005

MIKE 0.2% 0.2%

MIKE fibers 4.6%* 0.0%

MagIC 0.0% 0.1%

LDSS-2 0.5% --

LDSS-3 0.0% 0.0%

B&C 0.0% --

IMACS 0.5% 1.4%

PANIC 1.1% 0.2%

Other -- 0.0%

Observing Statistics

Long-Term Trends

Baade May 01-Oct 01

Nov 01- Apr 02

May 02-Oct 02

Nov 02-Apr 03

May 03-Oct 03

Nov 03-Apr 04

Apr 04-Sep 04

Sep 04-Apr 05

Apr 05-Sep 05

% Open 74.8 85.6 67.1 94.4 71.4 92.7 69.9 88.4 66.8%

% Lost to Weather 20.6 9.7 31.1 3.1 23.7 4.3 27.4 9.6 31.1%

% Lost to Telescope 1.3 3.6 1.1 1.4 2.7 1.4 1.8 0.9 1.1%

% Lost to Instrument 2.5 1.0 0.7 0.6 2.1 1.5 1.0 0.7 0.9%

% Lost to Computer 0.4 0.2 0.1 0.5 0.1 0.2 0.0 0.4 0.1%

% Total Downtime 4.2 4.8 1.9 2.5 4.9 3.1 2.8 2.0 2.1%

Clay May 01-Oct 01

Nov 01- Apr 02

May 02-Oct 02

Nov 02-Apr 03

May 03-Oct 03

Nov 03-Apr 04

Apr 04-Sep 04

Sep 04-Apr 05

Apr 05-Sep 05

% Open -- -- 76.6 89.2 81.3 93.1 69.8 88.6 70.0%

% Lost to Weather -- -- 13.6 4.3 16.1 4.3 26.9 9.4 28.7%

% Lost to Telescope -- -- 7.5 4.4 2.1 1.6 2.8 1.3 0.6%

% Lost to Instrument -- -- 1.5 1.9 0.4 0.8 0.1 0.5 0.1%

% Lost to Computer -- -- 0.9 0.2 0.1 0.1 0.4 0.3 0.6%

% Total Downtime -- -- 9.9 6.5 2.6 2.5 3.3 2.1 1.3%

Most Common Problems: Telescopes

• Primary mirror support (mirror panics, faulty actuators, hard point actuators)

• Campaign underway to seal air cylinders in actuators; redesign of actuator electronics cards in progress; ~50% of all time lost on both telescopes is due to these problems (but improvement is being seen)

•Leaking hard point breakaway seals cause primary mirror crashes

•Faulty connector on Hard Point #2 LVDT sensor

Hard Point #6 in Clay cell

Hard-point Breakaway AssemblyHard Point Breakaway Cylinder

Problems and Failures Enclosures

• Shutter structure on Clay is scheduled for the October and November Engineering runs

• Enclosure Truck Bearing failures

• Louver seals

• Wind Screen & Moon Roof drives

• Rotating interface seal

Bearing failure on Baade enclosure truck

Work in Progress

• Telescopes– Actuator leak repair– Hard-point breakaway leak repairs– New actuator control cards– New PWM amps on rotators (on hold)– M1 thermal control mixing valves

Work in Progress

• Enclosures– Louver seals– Enclosure Truck bearing failures– Rotating interface seals– Windscreen & Moon roof drives– Rotating seal (Baade)

Work In Progress

• Software– M3 Tip-Tilt automation– Code normalization, ini files– Translate Fortran to C++ (enclosure)– Windscreen & Moon roof automation– EDS query tools– PWM Amps, Rotator guiding, servos– M1 thermo control servo

Gemini Silver and Aluminum Coatings

LLNL Protected Silver