Summer 2007 W. M. Keck Observatory 


 In this Issue:
 50 by 50
 Finding Our Way in
  the Sky
 The Right to Starlight
 Keck Profile: Jerry Smith
 Philanthropy and
  Astronomy


By Linda Copman

Photo: Ben taking a break on the roof of the Keck Observatory, to watch the sunset before a night of interferometer engineering work, courtesy of Ben Berkey.
“To many people growing up in Hawai‘i, myself included, the summit observatories represented the idea that there was a bright economic future for Hawai‘i; and there was a reason to pay attention in school.” — Ben Berkey
The Akamai Internship Program offers participating college students an intensive “short course” science and communication curriculum and then places them with observatory mentors to apply their academic experience in the workplace. Ongoing support continues with weekly meetings via video-conferencing between the interns and support staff in Hawai‘i and Center for Adaptive Optics (CfAO) personnel in Santa Cruz. In return, the students enable the observatory staff, whether they are scientists, engineers, or technicians, to complete important projects which need more attention or time than staff has available. The students bring their enthusiasm, energy, and excitement to the workplace. The end products of their work, when completed, are integrated into the complex real-life systems at the various partner observatories.

Ben Berkey

Photo: Ben in the middle of the Keck interferometer, aligning the Nuller Breadboard. Photo by Andrew Cooper, electronics engineer at Keck Observatory.
Editor’s Note:
Ben Berkey was a student in the Akamai Internship pilot program in 2004. After graduation, Ben landed an internship at Keck Observatory on the interferometer, and he is still working on the interferometer as a Keck employee. In his spare time, Ben is a frequent volunteer at the Ellison Onizuka Visitor Information Station at Hale Pohaku on Mauna Kea.


In the summer of 2004 I was an Akamai intern at the Smithsonian Submillimeter Array (SMA), where I worked under Billie Chitwood. The SMA is a submillimeter observatory which uses eight 6-meter antennas to provide the world’s sharpest images of vibrating molecules. To produce these images, each antenna has to accurately point to the exact same point in the sky. The problem is that the antennae deform under their own weight. I looked at how the tilts and sags of the antenna structure affected precise pointing on the sky. Although I wasn’t able to find a better mathematical pointing model, I was able to show how certain features of the internal antenna structure contributed to some of the pointing errors.

Personally I felt the SMA internship was a great experience. It was a good job, a great way to meet people in the realm of astronomy, and it helped me to cement the idea in my mind that I wanted to work with telescopes and do astronomy in my future. I think the most valuable thing I got out of the internship was the part I was least excited about: the final presentation that I gave at the Center for Adaptive Optics (CfAO) in Santa Cruz. This was the biggest and most difficult presentation I had done up until that point in my life. I know this experience made me more confident about public speaking and preparing presentations.

In the summer of 2005 I started my second Mauna Kea internship; this one was sponsored by both the Michelson Science Center and the UH-Hilo Physics and Astronomy Department. In this internship I worked at Keck Observatory to build a software tool to analyze the performance of various sub-systems of the interferometer. This internship was successful enough that when I graduated in December of 2005, I was offered a job at Keck Observatory as an optics assistant.

The challenges facing young people growing up in Hawai‘i are the same challenges faced by people growing up anywhere else, except for one thing. When I was growing up, it was accepted knowledge that if you wanted to do something with your life, you had to leave the state. So for most young people, there is no obvious reason to study hard or pay attention in school, since they don’t want to leave home. I sincerely hope that more people get a chance to go through the Akamai Program and have some of the experiences I had.

David Luis

Photo: David at the Waiakoa Laboratory working on a level shifter circuit to be used for a solar telescope in Antarctica. Photo by Bill Giebink.
Editor’s Note:
David Luis was a member of the 2005 cohort and was at that time a junior in electrical engineering at UH Manoa. David interned at Keck Observatory with Craig Nance, assembling and installing a Web weather camera on the outside of the dome.


My Akamai Project stemmed from a problem that Keck Observatory was having with snow which was accumulating on the observatory dome, where it could fall into the dome and damage the primary mirror. Snow was also blocking the primary observatory access road. The snow problem was interfering with the tight schedules of the observatory staff, who are constantly working to accommodate the many astronomers who vie for viewing time on the Keck Telescopes.

My project was to design, build, install, and test a camera system that would withstand extreme weather conditions and allow the observatory staff to remotely view the summit day and night, via the internet, so that they could respond more quickly before snow accumulated on the dome and access road.

The main person I worked with was Craig Nance, facilities engineer at Keck Observatory. Mr. Nance was a great resource for the concepts and information I would need to successfully build the camera system. He also provided me with invaluable knowledge of how to work and interact in a technical work environment. He was my guide.

Photo: David on a ladder at Keck Observatory, considering the practical parameters for the weather camera system. Photo by Craig Nance.
Because I was used to learning theories in school, it was tough getting used to thinking practically about how I would actually build something. It was challenging for me to design an enclosure that both cameras would fit into and still have a view of both the Observatory dome and the access road. I couldn’t place the cameras too far away from the window, or their angle of view would be reduced so that they would not view both the dome and the road. There was hardware in the back of the enclosure, so there were limits on how far from or how close to the window the cameras could be placed.

This was the most valuable thing about the internship. It taught me the hands-on reality of working as an engineer, versus the theory that you learn in school. I had learned a lot of math and science, but I had hardly touched the reality of building something.

I brought all my engineering books from school, thinking that I would use the information they contained, but I never touched them throughout the entire internship. Instead I learned real strategies, like how and where to search online for needed information and electrical devices that met the system parameters, how to attach various connectors to connect circuits together, and how to interact with the people you work with in a technical environment.

“I think many young residents of Hawai‘i do not realize how many resources and opportunities are available to them to help them reach their dreams. Many students never have an experience or meet someone that instills the positive inspiration and the interest to discover and explore. The Akamai Internship Program allows students to obtain real, practical experience and skills they need to pursue technical or scientific careers.” - David Luis
Footnote:
When a position as lead electronics technician for the Haleakala observatories opened up in 2006, Akamai staff encouraged David to apply. Craig Nance was contacted as a reference. David got the job, and began working at Haleakala in January 2007. David works for the Institute for Astronomy in Kula, Maui, where he provides mechanical and electronics support for the observatories and for the astronomers who work there.


James Ah Heong

Photo: James looking for a way to mount the Iris AO deformable mirror in the Adaptive Optics work bench. In the picture, I'm thinking, "If I put this mirror here and I -- ahhh yes!" Photo by Sarah Anderson, caption by James Ah Heong.
Editor’s Note:
James Ah Heong was a member of the 2006 cohort. James, who is now a 23- year old student at UH Hilo, is now working at the Center for Adaptive Optics (CfAO) on the campus of the University of California at Santa Cruz, building and commissioning an adaptive optics work bench. Adaptive optics systems, which correct for distortions in images caused by the earth’s atmosphere, are advanced features on contemporary large telescopes like those at Keck Observatory, but education and training for this technology are still in development. The work bench is destined for the electronics technology department at Hawai‘i Community College (HCC), where it will be used as a teaching tool.


I worked in Hilo, Hawai‘i at the UHH Institute for Astronomy (IFA) for my Akamai internship. My project was to replicate the control electronics for the NSFCam2 Array. The NSFCam2 was taking “noisy” pictures, which means that there were too many misinterpreted pixels. My project was to build a copy of the electronics. The idea was that somewhere in analyzing the electronics we could get rid of the noise. The copy I built was matched to the original and then tested until we found the problem. All the while, the original could remain operable.

Darryl Watanabe was my direct supervisor during the project and mentored me through the design. Darryl is an electronics technician at the Infrared Telescope Facility (IRTF). Darryl has taught me a lot of what I know about working for the telescopes and about working on projects. Mark Chun, an astronomer at the IFA was my other mentor, and was always available to clarify those subjects I had difficulty wrapping my mind around. My mentors were located just across the hall. Darryl was literally next door, and Mark was a 30-second walk away. They came to check on me or I went to check with them regularly.

It would take too long to list everyone who helped me. I bugged them all to show me what they know, and they were all very willing. The day crew at IRTF was always popping in and giving me new insight on how and why things need to work a certain way.

The biggest challenge was how vast the project could be. I was working with hardware, but I had to use software to design the components, and then machine the parts. I was constantly washing parts and getting dirty again. I spent a lot of time inspecting the work afterwards and having to fix mistakes I’d made. Working linearly was the biggest challenge for me, because there were so many steps in the project that I got sidetracked from the main pursuit of keeping to the schedule.

The internship showed me that “applying” myself, while slightly painful, pays off ten-fold or more. I think the project has given me insight that other students won’t have until they experience this kind of work for themselves. It has taken me across the country and strengthened all my skills. I see now the skills I lack, as well as the avenues to remedy this situation. This internship opens your eyes to the world of professions…they are not majors, but much more.
Photo: James in summer 2006, during his Akamai internship. Photo by Sarah Anderson.
“On Hawai‘i Island there are a lot of kids who are interested in technology and science, yet it is easy to lose motivation. It’s not a matter of getting kids motivated, but more about keeping them motivated. When a kid asks in math class, ‘When are we ever gonna use this?’ the answer should be ‘all day every day.’ Instead they get something like ‘in engineering’ or in the ‘real world.’ That is not the time for a short answer, it’s an invitation to astound those who are listening and inspire the smart aleck who is tired of trudging with ill result. The kids should know why they are learning something. I hear stories about Archimedes in college; I should have learned them in kindergarten.” — James Ah Heong
I assume there are those of you reading this who enjoy seeing constructive results. The control electronics I worked on is being refitted to serve as the array control on NSFCam2. My project is going on the telescope. IRTF will be able to test and maintain a spare controller for the instrument, with little or no loss in viewing time. This means the project has reached its goals.

Having a summer intern around to get the ball rolling helps the entire industry. We interns come well armed, as the support we receive from the Akamai Program staff is excellent! Many of the projects that the interns tackle are ones that their mentors simply need help getting started. These projects are not busy work; they directly support astronomy and are a great investment for everyone involved.

Click here to see a video clip of James walking the viewer through the adaptive optics work bench that he is currently working on at CfAO in Santa Cruz (requires Flash 8 player).  

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