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2008.07.24

Milky Way at the OSF

Tags: ALMA Topics

On a cloudless sunny day, I had a chance to see the famous Atacama beautiful star-filled skyEat the Operation Support Facility (OSF). At night, while a North A…

2008.07.23

Flaming Sunset Clouds

Tags: ALMA Topics

Today it was calm and windless in contrast to a sand storm with a wind velocity of 20m/s or higher on the previous day. Clouds were growing thick from the afte…

2008.05.29

Sheep Clouds across the Sky

Tags: ALMA Topics

The sky over the Operations Support Facility (OSF) was covered by sheep clouds (altocumulus cloud), as if small cotton pieces were placed in rows. Since there …

2008.05.09

Current Status of OSF

Tags: ALMA Topics

This picture was taken at the antenna assembly area of ALMA Operations Support Facility (OSF). These four antennas are ACA 12-m antennas designed by the Nation…

2008.02.27

Antenna Surface Adjustment

Tags: ALMA Discoveries

Surface adjustment of a 12-m antenna is conducted using a manlift. The smoothness of the surface is measured by radio holography to achieve a surface accuracy …

2008.02.21

Total Lunar Eclipse

Tags: ALMA Topics

A total lunar eclipse was observed during the nighttime in Chile (the daytime in Japan time). We successfully took clear images of the eclipse, though clouds c…

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