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Start Date:1956 End Date:1957 |
Creator:Records of the NRAO Series:Green Bank Operations Series Unit:140 Foot Telescope Unit Type:Text Subject:Instruments--140 Foot Telescope |
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Start Date:1957 End Date:1958 |
Creator:Records of the NRAO Series:Green Bank Operations Series Unit:140 Foot Telescope Unit Type:Text Subject:Instruments--140 Foot Telescope |
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Start Date:1966-01-21 Location:Green Bank, WV People:Behrens, George |
Creator:Records of the NRAO Series:Photographs Series Unit:140 Foot Telescope Unit Type:Still Image Subject:Instruments--140 Foot Telescope
Electronics |
Description:Installing feed for 140 Foot Telescope; George Behrens in corner
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Start Date:1966-01-21 Location:Green Bank, WV People:Logan, Don
Behrens, George |
Creator:Records of the NRAO Series:Photographs Series Unit:140 Foot Telescope Unit Type:Still Image Subject:Instruments--140 Foot Telescope
Electronics |
Description:Installing feed for 140 Foot Telescope. From left: Don Logan, George Behrens
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Start Date:1966-01-21 Location:Green Bank, WV |
Creator:Records of the NRAO Series:Photographs Series Unit:140 Foot Telescope Unit Type:Still Image Subject:Instruments--140 Foot Telescope
Electronics |
Description:Installing feed for 140 Foot Telescope
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Start Date:1966-01-21 Location:Green Bank, WV |
Creator:Records of the NRAO Series:Photographs Series Unit:140 Foot Telescope Unit Type:Still Image Subject:Instruments--140 Foot Telescope
Electronics |
Description:Installing feed for 140 Foot Telescope
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Start Date:1966-01-21 Location:Green Bank, WV People:Behrens, George |
Creator:Records of the NRAO Series:Photographs Series Unit:140 Foot Telescope Unit Type:Still Image Original Format of Digital Item:B&W negative Subject:Instruments--140 Foot Telescope
Electronics |
Description:Installing feed for 140 Foot Telescope.
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Start Date:1974-06-27 Location:Green Bank, WV People:Payne, John
Balister, Michael
Kellermann, Kenneth I. |
Creator:Records of the NRAO Series:Photographs Series Unit:140 Foot Telescope Unit Type:Still Image Original Format of Digital Item:B&W negative Subject:Electronics
Instruments--140 Foot Telescope |
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. [show more]
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Start Date:1974-06-27 Location:Green Bank, WV People:Payne, John
Balister, Michael
Kellermann, Kenneth I. |
Creator:Records of the NRAO Series:Photographs Series Unit:140 Foot Telescope Unit Type:Still Image Original Format of Digital Item:B&W negative Subject:Electronics
Instruments--140 Foot Telescope |
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. [show more]
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Start Date:1983-03-07 |
Creator:Papers of Kenneth I. Kellermann Series:Jansky 50th Anniversary Celebration Series Unit:Jansky Antenna Project Unit Type:Text Subject:Instruments--Jansky Antenna Replica |
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Start Date:1983-03-07 |
Creator:Records of the NRAO Series:Green Bank WV Operations Series Unit:Jansky Antenna Replica Unit Subunit:Jansky Antenna Project Subunit Type:Text Subject:Instruments--Jansky Antenna Replica |
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Start Date:1969 Location:Green Bank, WV People:Haynes, Herb |
Creator:Records of the NRAO Series:Photographs Series Unit:140 Foot Telescope Unit Type:Still Image Original Format of Digital Item:B&W negative Subject:Instruments--140 Foot Telescope
Employees
Equipment |
Description:Herb Haynes in middle.
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Start Date:1984 End Date:1985 |
Creator:Records of the NRAO Series:Green Bank Operations Series Unit:140 Foot Telescope Unit Type:Text Subject:Instruments--140 Foot Telescope |
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Start Date:1968-07 End Date:1968-08 |
Creator:Papers of David S. Heeschen Series:Scientific Research Series Unit:Elliptical Galaxies Research Unit Type:Text |
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Start Date:1957-12-17 |
Creator:Records of the NRAO Series:NRAO Founding and Organization Series Unit:Antenna Planning Unit Type:Text |
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Start Date:1957-12-23 |
Creator:Records of the NRAO Series:NRAO Founding and Organization Series Unit:Antenna Planning Unit Type:Text |
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Start Date:1960 End Date:1989 |
Creator:Records of the NRAO Series:Green Bank Operations Series Unit:140 Foot Telescope Unit Type:Text Subject:Instruments--140 Foot Telescope |
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Start Date:1963 End Date:1964 |
Creator:Records of the NRAO Series:Green Bank Operations Series Unit:140 Foot Telescope Unit Type:Text Subject:Instruments--140 Foot Telescope |
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Start Date:1965 |
Creator:Records of the NRAO Series:Green Bank Operations Series Unit:140 Foot Telescope Unit Type:Text Subject:Instruments--140 Foot Telescope |
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Start Date:1963 End Date:1964 |
Creator:Records of the NRAO Series:Green Bank Operations Series Unit:140 Foot Telescope Unit Type:Text Subject:Instruments--140 Foot Telescope |
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Start Date:1964-01-31 |
Creator:Records of the NRAO Series:Green Bank Operations Series Unit:140 Foot Telescope Unit Type:Text Subject:Instruments--140 Foot Telescope |
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Start Date:1957 |
Creator:Records of the NRAO Series:Green Bank Operations Series Unit:140 Foot Telescope Unit Type:Text Subject:Instruments--140 Foot Telescope |
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Start Date:1964 |
Creator:Records of the NRAO Series:Green Bank Operations Series Unit:140 Foot Telescope Unit Type:Text Subject:Instruments--140 Foot Telescope |
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Location:Green Bank, WV |
Creator:Records of the NRAO Series:Photographs Series Unit:140 Foot Telescope Unit Type:Still Image Original Format of Digital Item:Color print Subject:Instruments--140 Foot Telescope |
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Location:Green Bank, WV |
Creator:Records of the NRAO Series:Photographs Series Unit:140 Foot Telescope Unit Type:Still Image Subject:Instruments--140 Foot Telescope |
Description:The NRAO 140 Foot Telescope was completed in the spring of 1965. Located in Green Bank, West Virginia, the telescope had its last observation run during the second quarter of 1999.
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