Monday, July 14, 2008

Work Continues

A week or so ago, I mentioned setting up a weather monitor at the site (click here to view its output).  This is a photo of the station itself.  
Several days ago, the major shipment which I had been alluding to arrived in San Pedro.  It contained the MBAC receiver and the associated electronics to make it work.  Here is the shipment itself on the back of the truck stopped at ALMA while the driver took a quick medical exam.  The drive up the mountain took several hours, between the medical clearances and the fact that the truck couldn't go very fast up the steep slope.  

Its worth noting that, in general, trucks have a terrible time with the mountains here.  On the Paso Jama road, which leads from San Pedro to Argentina, we have observed the same truck broken down at the side of the road for two or three days.  In another instance, a truck trailer was parked in the middle of the road, sans truck, for the entire weekend.  
Here is Dan working on some soldering in the mid-evening a few nights ago.  Note the computer giving the weather station readout.  We've typically been on the mountain from around 10:30 until about 7.  

Update: At around 11PM tonight, Lyman Page (Princeton), the principle investigator of ACT, arrived in San Pedro.  

Thursday, July 10, 2008

Waiting, and ALMA

As I may have mentioned previously, ALMA (Atacama Large Millimeter Array) is a billion-dollar astronomy project taking place just a few miles from ACT.  For the past several days now, we have been waiting for a shipment, carrying MBAC, to arrive here in San Pedro.  In the meantime, we have been tidying up around the site, installing the weather monitor, etc.  

When the shipment finally arrives, we will have to escort it up the so-called "ALMA road" (our own road is too rough for a large truck).  This process involves navigating the behemoth ALMA safety scheme, including providing advance notification of our use of the road, having the truck drivers undergo a brief physical and radio to "la seguridad" every 10km.  

Monday, July 7, 2008

Lots of Salt

Since Dan and Danica arrived last week, we have worked on a number of odds and ends up at the site (we are waiting for MBAC, the telescope's "camera" to arrive in a few days). Reed and I have continued to paint the inside of the telescope (with the paint continuing to not dry). We've also tried to fix a weather monitoring system we have and have worked on bringing the cryogenic compressors into operation.

We went out to diner last night at the so-called "meat place", known for its enormous skillet of meat, served at the table. There was also Lomo "a lo pobre" (meat of some sort with egg on top) and a very green mint liqueur for dessert.

We took today off and went to two popular sites in the area. In the morning we drove to the "Los Flamencos" reserve, via the town of Toconao. In the evening, we revisited the Valle de la Luna, which was found to be much more impressive at sunset.

Tomorrow, we are going to practice taking the ALMA road up to the site in preparation for escorting the MBAC delivery later in the week.

Here are some photos from today:
Here, Danica and Dan gaze at nearby Flamingos from an observation deck in the "Los Flamencos" reserve.  Note all of the white stuff, it is salt.  
An Andean Flamingo taking flight with the Altiplano and its volcanic peaks in the background.  
Part of the village of Toconao, about 40km south of San Pedro and on the road to the Salar and Flamingo reserve.  The towns copious water supply flows through the pit in the foreground.  
In the evening now, this is me atop the so-called "Great Dune" in the Valle de la Luna.  I wouldn't really call it a dune, since it is rather rocky.
The Great Dune itself.  After climbing it for the sunset, we picked up a pair of college-student bicyclists in the foreground parking lot and drove them back to San Pedro.  

Wednesday, July 2, 2008

Valle de la Luna (Second Day Off)


Dan and Danica should be arriving at around eleven tonight.  In the meantime, Reed and I went on an epic, 19.5 mi round-trip bike ride to and through the Valle de la Luna (Valley of the Moon). The area is supposed to have lunar character.  To me, it looked like a long valley with a lot of salt. Nonetheless, it was a very striking, interesting place.  
This is a sand dune that we encountered at the end of our ride.  What was particularly striking about the place was, despite its status as a tourist destination, the total lack of people.  Here's Reed studying the map on a completely deserted stretch of road.  We were in the actual park for about 90 minutes, and only saw two cars.  
You can see a the route we took on Google Maps (its the blue line, yesterday's ride is the red line) by clicking here.

Tuesday, July 1, 2008

Day Off

Dr. Devlin left early this morning to return to the United States.  Until Dan and Danica (graduate students) arrive tomorrow night, Reed and I have time off to "tour".  

Today we walked into downtown San Pedro for lunch (at a Chilean pizzeria, it was nice to have some food that doesn't taste quite the same as everything else) and some trinket shopping.  Then, we went for an 8 mi bike ride on the road that leads south from our complex.  We followed it through the middle of nowhere until we came to the San Pedro-Toconao road.  Along the way back we saw a man and his flock of sheep moving across the semi-desert.  

Tonight, we are going to act as super-tourists and go on an "Astronomy Tour".