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Start Date:1999-11 Location:Chile People:Sakamoto, Seiichi
Yun, Min
Giovanelli, Riccardo
Radford, Simon
Otarola, Angel
Nyman, Lars Ake
Brooks, Kate |
Creator:Records of the NRAO Series:Photographs Series Unit:MMA/ALMA Unit Type:Still Image Subject:Instruments--Atacama Large Millimeter/submillimeter Array (ALMA) |
Description:As part of ALMA site testing, weather balloons, or radiosondes, were launched to measure the vertical profiles of temperature, pressure, and humidity. Balloons were launched about 1 km west of the present location of the ALMA AOS building, and the equipment, including the tanks of helium for the balloons, was stored in a container. Inside the container in November 1999, l-r: Seichi Sakamoto, Min Yun, Riccardo Giovanelli, Simon Radford, Angel Otarola, Lars Ake Nyman, and Kate Brooks. [show more]
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Start Date:1995-12 Location:Chile People:Otarola, Angel |
Creator:Papers of Paul A. Vanden Bout Series:Millimeter Array (MMA) Series Type:Still Image Original Format of Digital Item:Slide Subject:Instruments--Millimeter Array (MMA) |
Description:Angel Otarola inside NRAO container
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Start Date:1995-12 Location:Chile People:Otarola, Angel |
Creator:Papers of Paul A. Vanden Bout Series:Millimeter Array (MMA) Series Type:Still Image Original Format of Digital Item:Slide Subject:Instruments--Millimeter Array (MMA) |
Description:Angel Otarola
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Start Date:1994-05 Location:Chile People:Quintana, Hernan
Otarola, Angel
Vanden Bout, Paul
Brown, Robert L. |
Creator:Papers of Robert L. Brown Series:Photographs Series Type:Still Image Subject:Instruments--Millimeter Array (MMA) |
Description:Left to right: Hernan Quintana, Angel Otarola, Paul Vanden Bout, Bob Brown - Auconquilcha - site 19 identified by Smithsonian Astrophysical Observatory as possible MMA site
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Start Date:1994-05 Location:Chile People:Giovanelli, Riccardo
Quintana, Hernan
Otarola, Angel |
Creator:Papers of Robert L. Brown Series:Photographs Series Type:Still Image Subject:Instruments--Millimeter Array (MMA) |
Description:Riccardo Giovanelli at far right, Hernan Quintana, Angel Otarola in center - Auconquilcha - site 19 identified by Smithsonian Astrophysical Observatory as possible MMA site
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Start Date:1994-05 Location:Ollague, Chile People:Quintana, Hernan
Otarola, Angel
Giovanelli, Riccardo |
Creator:Papers of Robert L. Brown Series:Photographs Series Type:Still Image Subject:Instruments--Millimeter Array (MMA) |
Description:Hernan Quintana, Angel Otarola, Riccardo Giovanelli in Ollague, Chile
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Start Date:1997-11 Location:Chile People:Readhead, Anthony
Hofstadt, Daniel
Otarola, Angel |
Creator:Papers of Robert L. Brown Series:Photographs Series Type:Still Image Original Format of Digital Item:Slide Subject:Instruments--Millimeter Array (MMA) |
Description:Tony Readhead, Daniel Hofstadt, Angel Otarola
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Start Date:1997-11 Location:Chile People:Padin, Steve
Hofstadt, Daniel
Otarola, Angel
Readhead, Anthony |
Creator:Papers of Robert L. Brown Series:Photographs Series Type:Still Image Original Format of Digital Item:Slide Subject:Instruments--Millimeter Array (MMA) |
Description:Steve Padin, Daniel Hofstadt, Angel Otarola, Tony Readhead
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Start Date:1997-11 Location:Chile People:Hofstadt, Daniel
Otarola, Angel
Readhead, Anthony |
Creator:Papers of Robert L. Brown Series:Photographs Series Type:Still Image Original Format of Digital Item:Slide Subject:Instruments--Millimeter Array (MMA) |
Description:Daniel Hofstadt, Angel Otarola, Tony Readhead
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Start Date:1994-05 Location:Chile People:Otarola, Angel
Brown, Robert L.
Vanden Bout, Paul
Quintana, Hernan |
Creator:Records of the NRAO Series:Photographs Series Unit:MMA/ALMA Unit Subunit:MMA Chile Site Subunit Type:Still Image |
Description:In this photo, taken by Riccardo Gionvanelli on the way from Calama to Ollague during a May 1994 trip to Chile to scout potential MMA sites, Angel Otarola (left) watches as Bob Brown (red and white jacket) uses a Sun radiometer to measure precipitable water vapor, while Paul Vanden Bout (navy shirt) and Hernan Quintana (navy jacket) survey the surroundings. The pipeline carries water from the mountains to Calama and then to Antofagasta. In the distance between the mountains there is a plume indicating industrial activity, probably from the Chuquicamata/Calama area, so the group is north from there along Route 21. Angel notes that the photo was taken on the way to Ollague, because "on the way back the radiometer got damaged crashing in the roof of the truck due to a bump in the road." Paul says, "The wretched meter, borrowed from Tucson, was not up to the rigors of our adventure. We tried changing the batteries with no effect. Gave it a few whacks and it died altogether." Thanks to Riccardo Giovanelli for the photo and to Angel Otarola and Paul Vanden Bout for caption information. [show more]
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Start Date:1995-05 Location:Chile People:Shillue, Bill
Otarola, Angel
Radford, Simon |
Creator:Records of the NRAO Series:Photographs Series Unit:MMA/ALMA Unit Type:Still Image Subject:Instruments--Millimeter Array (MMA)
Instruments--Atacama Large Millimeter/submillimeter Array (ALMA) |
Description:L-r: Bill Shillue, Angel Otarola, and Simon Radford at 5500 m on Cerro Sairecabur with Volcan Licancabur (5900 m) in the background.
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Start Date:1995-05 Location:Chile People:Shillue, Bill
Otarola, Angel
Radford, Simon |
Creator:Records of the NRAO Series:Photographs Series Unit:MMA/ALMA Unit Type:Still Image Subject:Instruments--Millimeter Array (MMA)
Instruments--Atacama Large Millimeter/submillimeter Array (ALMA) |
Description:L-r: Bill Shillue, X, Angel Otarola, X, X, and Simon Radford by the NRAO container on the Chajnantor Plateau (5000 m). Members of the Chilean police (carabineros) from the San Pedro post were invited for a goodwill visit.
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Start Date:1994-11 Location:Chile People:Napier, Peter
Owen, Frazer
Otarola, Angel |
Creator:Records of the NRAO Series:Photographs Series Unit:MMA/ALMA Unit Type:Still Image Subject:Instruments--Millimeter Array (MMA)
Instruments--Atacama Large Millimeter/submillimeter Array (ALMA) |
Description:In late October and early November 1994, Peter Napier, Frazer Owen, Angel Otarola, and Simon Radford visited a possible site for the Millimeter Array on the Chilean Chajnantor plateau, the eventual site for ALMA. This photo shows (clockwise) Peter Napier (standing), with Frazer Owen and Angel Otarola working on equipment sheltered behind a large rock, with small wind break walls built to each side. Solar panels (blue) on the ground and batteries in the cardboard box power a 225 GHz tipping radiometer, the gray box visible in the door of the tent. The team made the first measurements of millimeter wavelength (225 GHz) atmospheric transparency on the Chajnantor plateau. These measurements gave the first indication the plateau enjoys excellent observing conditions for submm astronomy, much better than any sites previously considered for the MMA. More extensive measurements, which began in April 1995, confirmed the initial indications. The tent site is about 4 km north of the ALMA AOS building. [show more]
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Start Date:1994-11 Location:Chile People:Napier, Peter
Owen, Frazer
Otarola, Angel |
Creator:Records of the NRAO Series:Photographs Series Unit:MMA/ALMA Unit Type:Still Image Subject:Instruments--Millimeter Array (MMA)
Instruments--Atacama Large Millimeter/submillimeter Array (ALMA) |
Description:In late October and early November 1994, Peter Napier (standing), Frazer Owen, Angel Otarola, and Simon Radford (taking the photo) visited a possible site for the Millimeter Array on the Chilean Chajnantor plateau, the eventual site for ALMA. This photo shows equipment sheltered behind a large rock, with small wind break walls built to each side. Solar panels (blue) on the ground and batteries in the cardboard box power a 225 GHz tipping radiometer, the gray box visible between Owen and Otarola in the door of the tent. The team made the first measurements of millimeter wavelength (225 GHz) atmospheric transparency on the Chajnantor plateau. These measurements gave the first indication the plateau enjoys excellent observing conditions for submm astronomy, much better than any sites previously considered for the MMA. More extensive measurements, which began in April 1995, confirmed the initial indications. The tent site is about 4 km north of the ALMA AOS building. [show more]
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Start Date:1994-11 Location:Chile People:Napier, Peter
Owen, Frazer
Otarola, Angel |
Creator:Records of the NRAO Series:Photographs Series Unit:MMA/ALMA Unit Type:Still Image Subject:Instruments--Millimeter Array (MMA)
Instruments--Atacama Large Millimeter/submillimeter Array (ALMA) |
Description:In late October and early November 1994, Peter Napier (standing), Angel Otarola (back to camera), Frazer Owen (wool hat), and Simon Radford (taking the photo) visited a possible site for the Millimeter Array on the Chilean Chajnantor plateau, the eventual site for ALMA. This photo, looking to the west and into the prevailing wind, shows equipment sheltered behind a large rock, with small wind break walls built to each side. Solar panels on the ground and batteries in the cardboard box power a 225 GHz tipping radiometer, the gray box with a handle sitting in the door of the tent. The team, here troubleshooting some difficulty with the tipping radiometer, made the first measurements of millimeter wavelength (225 GHz) atmospheric transparency on the Chajnantor plateau. These measurements gave the first indication the plateau enjoys excellent observing conditions for submm astronomy, much better than any sites previously considered for the MMA. More extensive measurements, which began in April 1995, confirmed the initial indications. The tent site is about 4 km north of the ALMA AOS building. [show more]
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Start Date:1994-11 Location:Chile People:Radford, Simon
Otarola, Angel
Owen, Frazer
Napier, Peter |
Creator:Records of the NRAO Series:Photographs Series Unit:MMA/ALMA Unit Type:Still Image Subject:Instruments--Millimeter Array (MMA)
Instruments--Atacama Large Millimeter/submillimeter Array (ALMA) |
Description:L-r: Simon Radford, Angel Otarola, Frazer Owen, and Peter Napier, at a possible site for the Millimeter Array on the Chajnantor Plateau in Chile
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