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Start Date:1980-01-16 End Date:1980-07-08 |
Creator:Papers of Marshall H. Cohen Series:Very Long Baseline Array (VLBA) Series Type:Text Subject:Instruments--Very Long Baseline Array (VLBA) |
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Start Date:1980 |
Creator:Papers of Kenneth I. Kellermann Series:Very Long Baseline Array (VLBA) Series Unit:VLBA History and Development Unit Type:Text Subject:Instruments--Very Long Baseline Array (VLBA) |
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Start Date:1984 |
Creator:Papers of Kenneth I. Kellermann Series:Very Long Baseline Array (VLBA) Series Unit:VLBA History and Development Unit Type:Text Subject:Instruments--Very Long Baseline Array (VLBA) |
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Start Date:1985 |
Creator:Papers of Kenneth I. Kellermann Series:Very Long Baseline Array (VLBA) Series Unit:VLBA History and Development Unit Type:Text Subject:Instruments--Very Long Baseline Array (VLBA) |
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Start Date:1980-05-29 End Date:1981-10-29 |
Creator:Records of the NRAO Series:New Mexico Operations Series Unit:Very Long Baseline Array (VLBA) Unit Type:Text Subject:Instruments--Very Long Baseline Array (VLBA) |
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Start Date:1979 End Date:1982 |
Creator:Papers of Kenneth I. Kellermann Series:Very Long Baseline Array (VLBA) Series Unit:VLBA History and Development Unit Type:Text Subject:Instruments--Very Long Baseline Array (VLBA) |
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Start Date:1982 End Date:1983 |
Creator:Papers of Kenneth I. Kellermann Series:Very Long Baseline Array (VLBA) Series Unit:VLBA History and Development Unit Type:Text Subject:Instruments--Very Long Baseline Array (VLBA) |
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Start Date:1984 |
Creator:Papers of Kenneth I. Kellermann Series:Very Long Baseline Array (VLBA) Series Unit:VLBA History and Development Unit Type:Text Subject:Instruments--Very Long Baseline Array (VLBA) |
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Start Date:1985 |
Creator:Papers of Kenneth I. Kellermann Series:Very Long Baseline Array (VLBA) Series Unit:VLBA History and Development Unit Type:Text Subject:Instruments--Very Long Baseline Array (VLBA) |
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Start Date:1982-09 End Date:1982-11 |
Creator:Papers of Kenneth I. Kellermann Series:Very Long Baseline Array (VLBA) Series Unit:VLBA History and Development Unit Type:Text Subject:Instruments--Very Long Baseline Array (VLBA) |
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Start Date:1987-12-18 End Date:1992-06-04 |
Creator:Records of the NRAO Series:New Mexico Operations Series Unit:Very Long Baseline Array (VLBA) Unit Type:Text Subject:Instruments--Very Long Baseline Array (VLBA) |
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Start Date:1993-08-20 Location:Socorro, NM People:Goss, Miller
Cornwell, Tim
Brown, Robert L.
Napier, Peter
Finley, David
Sramek, Dick
Shaffer, David |
Creator:Records of the NRAO Series:Photographs Series Unit:VLBA Unit Type:Still Image Subject:Instruments--Very Long Baseline Array (VLBA)
Events--Dedications |
Description:Left to right: Miller Goss, Tim Cornwell, Bob Brown, Peter Napier, Dave Shaffer, Dave Finley (at podium), Dick Sramek. This ceremony was held in the VLBA Operations area of the Array Operations Center in Socorro. The map behind Peter Napier contains LEDs in the locations of the VLBA antennas. The table to the left of the podium holds a bar-code reader that was triggered by Sen. Pete Domenici, causing the VLBA antennas all to begin pointing at a specific source. Their azimuths and elevations began changing on the monitor behind Napier and, one by one, from East to West, the LEDs indicating the antennas lit up. [show more]
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Start Date:2015 End Date:2018 |
Creator:Records of the NRAO Series:New Mexico Operations Series Unit:Very Long Baseline Array (VLBA) Unit Type:Text Subject:Instruments--Very Long Baseline Array (VLBA) |
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Start Date:1965-11-22 End Date:1967-04-05 |
Creator:Papers of Marshall H. Cohen Series:Very Long Baseline Array (VLBA) Series Type:Text Subject:Instruments--Very Long Baseline Array (VLBA) |
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Start Date:1981-12-18 End Date:1988-11-16 |
Creator:Records of the NRAO Series:New Mexico Operations Series Unit:Very Long Baseline Array (VLBA) Unit Type:Text Subject:Instruments--Very Long Baseline Array (VLBA) |
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Start Date:1979 |
Creator:Papers of Kenneth I. Kellermann Series:Very Long Baseline Array (VLBA) Series Unit:VLBA History and Development Unit Type:Text Subject:Instruments--Very Long Baseline Array (VLBA) |
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Start Date:1984-06-29 |
Creator:Records of the NRAO Series:New Mexico Operations Series Unit:Very Long Baseline Array (VLBA) Unit Type:Text Subject:Instruments--Very Long Baseline Array (VLBA) |
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Start Date:1984-06-29 |
Creator:Records of the NRAO Series:New Mexico Operations Series Unit:Very Long Baseline Array (VLBA) Unit Type:Text Subject:Instruments--Very Long Baseline Array (VLBA) |
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Start Date:1984-06-29 |
Creator:Records of the NRAO Series:New Mexico Operations Series Unit:Very Long Baseline Array (VLBA) Unit Type:Text Subject:Instruments--Very Long Baseline Array (VLBA) |
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Start Date:1984-06-29 |
Creator:Records of the NRAO Series:New Mexico Operations Series Unit:Very Long Baseline Array (VLBA) Unit Type:Text Subject:Instruments--Very Long Baseline Array (VLBA) |
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Start Date:1984-06-29 |
Creator:Records of the NRAO Series:New Mexico Operations Series Unit:Very Long Baseline Array (VLBA) Unit Type:Text Subject:Instruments--Very Long Baseline Array (VLBA) |
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Creator:Papers of Marshall H. Cohen Series:Very Long Baseline Array (VLBA) Series Type:Text Subject:Instruments--Very Long Baseline Array (VLBA) |
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Start Date:1988-09 |
Creator:Records of the NRAO Series:New Mexico Operations Series Unit:Very Long Baseline Array (VLBA) Unit Type:Text Subject:Instruments--Very Long Baseline Array (VLBA) |
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Start Date:1992 Location:Fort Davis, TX |
Creator:Records of the NRAO Series:Photographs Series Unit:VLBA Unit Type:Still Image Subject:Instruments--Very Long Baseline Array (VLBA)
Facilities--VLBA--Fort Davis, Texas |
Description:The VLBA site in Fort Davis, Texas.
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Start Date:1974-06 Location:Green Bank, WV People:Balister, Michael
Payne, John
Kellermann, Kenneth I. |
Creator:Records of the NRAO Series:Photographs Series Unit:140 Foot Telescope Unit Type:Still Image Original Format of Digital Item:Slide Subject:Electronics
Instruments--Very Large Array (VLA)
Instruments--Very Long Baseline Array (VLBA) |
Description:In June 1974, John Payne (back to camera), Mike Balister, and Ken Kellermann consider the four frequency Cassegrain receiver and feed assembly, with optics designed by Peter Napier, that was the prototype system for the VLA and was also used for the VLBA. It was a new and innovative concept, first developed by the Jet Propulsion Laboratory for use on their Deep Space Network antennas, where the four feeds were offset from the electrical axis and could be illuminated by rotating the asymmetric subreflector. Here it is being installed for testing on the 140ft antenna in Green Bank. Mike says, "Judging by the way I was clutching my head [Ken] must have been giving us a hard time." Ken says he was the project scientist "assigned to hassle the Electronics Division." He adds, "Note I was comfortably sitting down and seem to be the only one that didn’t look puzzled, as appropriate for an advisor." After installation of the Cassegrain cabin on the 140 ft telescope the system was integrated and evaluated by Chuck Brockaway and Tom Dunbrack. [show more]
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