[NRAO logo]
NRAO logo  


[NRAO dedication, 1957]
NRAO dedication, 1957. NRAO/AUI image


[Dedication of the 85 foot Tatel telescope]
85 foot Tatel Telescope dedication, 1958. NRAO/AUI image


[85 foot Tatel telescope]
85 foot Tatel Telescope. NRAO/AUI image


[Struve at groundbreaking for 300 foot telescope]
Struve at 300 foot ground breaking, 1961. NRAO/AUI image


[300 foot telescope]
300 foot telescope. NRAO/AUI image


[140 Foot telescope ground breaking]
140 foot telescope ground breaking, 1958. NRAO/AUI image


[NRAO 140 Foot telescope]
NRAO 140 Foot telescope. NRAO/AUI image


[Green Bank Interferometer]
Green Bank Interferometer. NRAO/AUI image


[VLA dedication]
VLA dedication, 1980. NRAO/AUI image


[VLA]
VLA. NRAO/AUI image


[AIPS logo]
AIPS logo. NRAO/AUI image


[VLBA Pie Town antenna]
VLBA Pie Town antenna. NRAO/AUI image


[300 foot telescope after 1988 collapse]
300 foot after collapse, 1988. NRAO/AUI image


[GBT ground breaking]
GBT ground breaking, 1991. NRAO/AUI image


[Green Bank Telescope]
Green Bank Telescope. NRAO/AUI image


[Christening block at ALMA Camp ground breaking]
Alma Camp ground breaking. NRAO/AUI image


[ALMA]
ALMA. NRAO/AUI image


[4 NRAO Directors]
Lo, Vanden Bout, Roberts, Heeschen - 4 NRAO Directors at 50th anniversary. NRAO/AUI image


NATIONAL RADIO ASTRONOMY OBSERVATORY ARCHIVES

Records of the National Radio Astronomy Observatory: Item Listing

300 Foot Time Capsule Subunit


ItemTypeReport
AuthorTroy Henderson
Title3 K Helium Refrigerator
Start Date4/1985
Link to PhotoView Photo
Photo Description3 K helium refrigerator
Photo Dateca. 1985
NotesTelescope Services Division Report no. 12. With three accompanying 3 K helium refrigerator photographs
PDF FileView PDF
 [Range 3A Box 1]

ItemTypeReport
AuthorDwayne R. Schiebel
Title300 Foot Inductosyn Readout System
Start Date5/1979
NotesElectronics Division Internal Report No. 198. 4 drawings filed with report are pre-AutoCad. Note written on front of report: "Aug. 1987 - 300' inductosyns were built in Green Bank, plates for inductosyn were bought from Farrand. This readout system is in use today."
External LinkEDIR 198
 [Range 3A Box 1]

ItemTypePhotograph
TitleMod-comp Data Analysis Computer
Start Date9/19/1977
Photo CreditNRAO/AUI
Link to PhotoView Photo
Photo Description300 foot operator Ed Burke shows equipment to visiting observer Dave Shaffer
Photo Date9/19/1977
NotesIn 300 foot control room
 [Range 3A Box 1]

ItemTypePhotograph
TitleControl Console used until Mass-Comp computer came on line in 1986
Start Date9/19/1977
Photo CreditNRAO/AUI
Link to PhotoView Photo
Photo Description300 foot control console used until Mass-Comp came on line in 1986. Operator Ed Burke at console
Photo Date9/19/1977
NotesIn 300 foot control room
 [Range 3A Box 1]

ItemTypePhotograph
TitleDDP 116 Data Recording and Control Computer
Start Date9/19/1977
Photo CreditNRAO/AUI
Link to PhotoView Photo
Photo Description300 foot operator Ed Burke adjusting DDP 116 data recording and control computer
Photo Date9/19/1977
NotesIn 300 foot control room
 [Range 3A Box 1]

ItemTypePhotograph
TitleHoneywell 316 Telescope Control Computer
Start Date2/2/1978
Photo CreditNRAO/AUI
Link to PhotoView Photo
Photo DescriptionHoneywell 316 telescope control computer for 300 foot
Photo Date2/2/1978
NotesIn 300 foot control room
 [Range 3A Box 1]

ItemTypeReport
AuthorRichard J. Lacasse; J. Richard Fisher
TitleAn FFT Spectrometer with Pulsar Dedispersion Capabilities
Start Date1/1987
NotesURSI Meeting Paper for U.S. National Committee, National Radio Science Meeting, 12-15 January 1987. Note on envelope: "8/16/87 - The spectral processor is under development at this time"
PDF FileView PDF
 [Range 3A Box 1]

ItemTypeReport
AuthorRichard J. Lacasse
TitleSpectral Processor for the 300 Foot Telescope - Overview and Progress Report
Start Date3/10/1987
NotesNote on envelope: "8/16/87 - The spectral processor is under development at this time"
PDF FileView PDF
 [Range 3A Box 1]

ItemTypeReport
TitleProgrammers Reference Manual for the DDP-116 General Purpose Computer
Start Date2/1966
NotesComputer Control Inc Document No. 71-281A
 [Range 3A Box 1]

ItemTypeObject
TitleTwo Software Packages in use in 1987: Word Perfect word processor and Lotus spread sheet
NotesNote on envelope: "Two software packages used today stored on 5 1/4" floppy disks. If you can load them , the operating system for an IBM PC is stored on each disk. To load the word processor, type WP. To load the spreadsheet, type Lotus"
 [Range 3A Box 1]

ItemTypePublication
TitleScience News
Start Date9/5/1987
NotesIssue dated September 5, 1987, Vol 132, No 10
 [Range 3A Box 1]

ItemTypeReport
TitleSilver Anniversary of 300 Foot Telescope, Open House, National Radio Astronomy Observatory, Green Bank, WV, September 23, 1987, 10 AM to 4 PM
Start Date9/23/1987
NotesPoster sent to colleges, universities, and others
PDF FileView PDF
 [Range 3A Box 1]

ItemTypeReport
AuthorR.D. Norrod; R.J. Simon
TitleLow-Noise, 4.8 GHz, Cooled GaAs FET Amplifier
Start Date2/1986
NotesElectronic Division Internal Report No. 259. Notes, calculations, and test data filed with report. Note on front of folder signed by Norrod and Simon: "13 Aug 87 We could not get this amp to work. See if you can."
External LinkEDIR 259
 [Range 3A Box 1]

ItemTypeDrawings
TitleDrawings generated by AutoCad Software package
Start Date7/1987
NotesTwo drawings of 21 cm offset feed, 300 foot telescope, concept #4
 [Range 3A Box 1]

ItemTypeReport
TitleInterferometer materials related to U.S. Naval Observatory operation of interferometer
Start Date1979
End Date1987
PDF FileView PDF
 [Range 3A Box 1]

ItemTypePublication
TitlePC Magazine, Vol 6, No 13, July 21, 1987
Start Date7/21/1987
NotesIssue dated July 21, 1987, Vol 6, no 13
 [Range 3A Box 1]

ItemTypeReport
TitleFirst 300' Telescope Control Program from the Digital Lab
Start Date1968
NotesNote on first sheet: "First 300 foot telescope drive program, entered by hand then stored on mag tape. By R. Weimer."
PDF FileView PDF
 [Range 3A Box 1]

ItemTypePhotograph
TitleDigital Lab
Start Date8/1987
Photo CreditDwayne Schiebel Family
Link to PhotoView Photo
Photo DescriptionDigital lab in Green Bank
Photo Date8/1987
NotesPhoto from Dwayne Schiebel's family
 [Range 3A Box 1]

ItemTypePhotograph
TitleInterferometer Lab
Start Date8/1987
Photo CreditDwayne Schiebel Family
Link to PhotoView Photo
Photo DescriptionInterferometer lab in Green Bank
Photo Date8/1987
NotesPhoto from Dwayne Schiebel's family
 [Range 3A Box 1]

ItemTypePhotograph
TitleFET Amplifier Lab
Photo CreditDwayne Schiebel Family
Link to PhotoView Photo
Photo DescriptionFET amplifier lab in Green Bank, ca. 1987
NotesPhoto from Dwayne Schiebel's family; undated - probably 1987
 [Range 3A Box 1]

ItemTypePhotograph
Title300 foot Lab
Photo CreditDwayne Schiebel Family
Link to PhotoView Photo
Photo Description300 foot lab in Green Bank, ca. 1987
NotesPhoto from Dwayne Schiebel's family; undated - probably 1987
 [Range 3A Box 1]

ItemTypePhotograph
Title300 foot control room computers and racks
Start Date8/1987
Photo CreditDwayne Schiebel Family
Link to PhotoView Photo
Photo Description300 foot control room. L to R: 1 - Operators TV, H316 computer CRT; 2 - H316 computer rack; 3 - Mass Comp interface rack; 4 - Mass Comp computer; 5 and 6 - IDT tape drive racks; 7 - Digital continuum receiver rack. Photo from Dwayne Schiebel's family
Photo Date8/1987
NotesL to R: 1 - Operators TV, H316 computer CRT; 2 - H316 computer rack; 3 - Mass Comp interface rack; 4 - Mass Comp computer; 5 and 6 - IDT tape drive racks; 7 - Digital continuum receiver rack. Photo from Dwayne Schiebel's family
 [Range 3A Box 1]

ItemTypePhotograph
TitleChart recorder at 300 foot
Start Date8/1987
Photo CreditDwayne Schiebel Family
Link to PhotoView Photo
Photo Description300 foot chart recorder
Photo Date8/1987
NotesPhoto from Dwayne Schiebel's family
 [Range 3A Box 1]

ItemTypePhotograph
Title300 foot as viewed from 140 foot
Photo CreditDwayne Schiebel Family
Link to PhotoView Photo
Photo Description300 foot viewed from the 140 foot, ca. 1987
NotesPhoto from Dwayne Schiebel's family; undated - probably 1987
 [Range 3A Box 1]

ItemTypePhotograph
TitleDDP 116 computer at Interferometer
Start Date8/1987
Photo CreditDwayne Schiebel Family
Link to PhotoView Photo
Photo DescriptionDDP 116 computer at Interferometer
Photo Date8/1987
NotesPhoto from Dwayne Schiebel's family
 [Range 3A Box 1]

ItemTypePhotograph
TitleChart recorder at Interferometer
Start Date8/1987
Photo CreditDwayne Schiebel Family
Link to PhotoView Photo
Photo DescriptionChart recorder at interferometer
Photo Date8/1997
NotesPhoto from Dwayne Schiebel'd family
 [Range 3A Box 1]

ItemTypePhotograph
TitleInterferometer console
Start Date8/1987
Photo CreditDwayne Schiebel Family
Link to PhotoView Photo
Photo DescriptionInterferometer console
Photo Date8/1997
NotesPhoto from Dwayne Schiebel's family
 [Range 3A Box 1]

ItemTypeReport
TitleInvitation to the 25th anniversary celebration for the 300 foot telescope, September 26, 1987
NotesDwayne Schiebel's invitation to 300 foot 25th anniversary celebration, Saturday September 25, 1987
 [Range 3A Box 1]

ItemTypeObject
TitleUpconverter
Start Date1982
End Date1987
NotesNote on envelope: "7/23/87 Upconverter used 1982-1987 in 300-1000 MHz receiver at 300 foot." In envelope with upconverter: Albert Wu, Designs of 300-1000 MHz Upper Sideband Converters, July 1981, Electronics Division Internal Report No. 216; diagrams and notes on spec for upconverter
PDF FileView PDF
External LinkEDIR 216
 [Range 1 Box 2]

ItemTypeObjectReport
TitleTransistors 2N404 and 2N1301 used in DDP 116 computer, typical of switching transistors used in 50s and 60s. Manufacturer descriptions and specs for integrated circuits AM29516 16x16 multiplier and 74F374 octal D type flip-flop; SE 555 timer; AD 741 op-amp
Start Date9/28/1987
NotesManufacturer specs for integrated circuits, timer, and op-amp all noted on envelope as "Being used today"
 [Range 1 Box 2]

ItemTypeReport
AuthorSander Weinreb
TitleLow-Noise Cooled GASFET Amplifiers
Start Date4/1980
NotesElectronics Divison Internal Report No. 202. Included in GASFET Amplifier packet. Original manilla envelope missing
External LinkEDIR 202
 [Range 1 Box 2]

ItemTypeReport
AuthorSander Weinreb
TitleTests of cooled 5-GHz parametric amplifiers
Start Date4/1980
NotesElectronics Division Internal Report No. 203. Included in GASFET Amplifier packet. Original manilla envelope missing
External LinkEDIR 203
 [Range 1 Box 2]

ItemTypeReport
TitleAmplifier Gain and Noise Temperature vs Frequency
Start Date1/29/1980
NotesIncluded in GASFET Amplifier packet. Original manilla envelope missing. Note on sheet: "For NRAO 2 stage GASFET amplifier contained in this envelope
PDF FileView PDF
 [Range 1 Box 2]

ItemTypeReport
AuthorC.L. Bennett; C.R. Lawrence; B.F. Burke
Title5 GHz Source Variability and the Gain of the 300 Foot Telescope
Start Date1983
NotesPreprint: MIT Radio Astronomy Contributions 1983 No. 2. Included in GASFET Amplifier packet. Original manilla envelope missing. Note on first sheet: "GASFET amp was used for this survey"
PDF FileView PDF
 [Range 1 Box 2]

ItemTypeObject
Title2 stage GASFET amplifier
NotesIncluded in GASFET Amplifier packet. Original manilla envelope missing
 [Range 1 Box 2]

ItemTypeVideo
TitleTapes made during 300 foot 25 year celebration
Start Date9/23/1987
End Date9/26/1987
NotesVHS tape from Malissa Weimer. Tape has been digitized, DVDs filed with the Green Bank Unit of the Moving Images Series. Contact Archivist for further information
PDF FileView PDF
 [Range 1 Box 2]

ItemTypeObject
TitleThermoelectric cooler
Start Date9/17/1987
NotesNote on envelope: "Typical of thermoelectric coolers used today"
 [Range 1 Box 2]

ItemTypeObjectReport
TitleParts from 11 cm 3 Feed receiver
NotesNote on envelope: "Paramp was replaced with transistor amp in 1982" In envelope with parts: Richard Fleming, 11 cm 3-feed receiver, October 1971, Electronics Division Internal Report No. 108
External LinkEDIR 108
 [Range 1 Box 2]

ItemTypeObject
TitleGasFet amplifier used at 300 foot, 1980-1987
Start Date7/23/1987
NotesAmplifier type still in use in 1987. Packed in same envelope with a Comtech paramp which the Gasfet amplifier replaced.
 [Range 1 Box 2]

ItemTypeObject
TitleComtech paramp, replaced by GasFet
Start Date7/23/1987
NotesPacked in same envelope with a GasFet amplifier which replaced the Comtech paramp
 [Range 1 Box 2]

ItemTypeObject
TitleNoise tube used for calibration
NotesNote on envelope: "Quit using these ca. 1972." In envelope with noise tube: Instruction Handbook for AIL Type 7012 Coaxial Noise Generator, March 1965. Note written on manual: "Discontinued using this type of noise generator mid 70s"
 [Range 1 Box 2]

ItemTypeObject
TitleTypical observing deck used with DDP 116 at 300 foot
NotesDeck of punched cards for observing program B401, 0200-1300 LST, R. Brown, proposed November 1980, observed April-August 1983
 [Range 1 Box 2]

ItemTypePhotograph
TitleKeypunch Machine at 140 foot
Start Date8/1987
Photo CreditDwayne Schiebel Family
Link to PhotoView Photo
Photo DescriptionKeypunch machine at 140 foot
Photo Date8/1997
NotesPhoto from Dwayne Schiebel's family. Returned for inclusion in 140 foot time capsule buried in 2015
 []

ItemTypePhotograph
TitleConsole at 140 foot
Start Date8/1987
Photo CreditDwayne Schiebel Family
Link to PhotoView Photo
Photo Description140 foot console
Photo Date8/1997
NotesPhoto from Dwayne Schiebel's family. Returned for inclusion in 140 foot time capsule buried in 2015
 []

ItemTypePhotograph
TitleModComp Computers at 140 foot
Start Date8/1987
Photo CreditDwayne Schiebel Family
Link to PhotoView Photo
Photo Description140 foot ModComps
Photo Date8/1997
Notesl-r: ModComp for telescope control, ModComp for data analysis. Photo from Dwayne Schiebel's family. Returned for inclusion in 140 foot time capsule buried in 2015
 []

ItemTypePhotograph
TitleTerminal racks at 140 foot
Start Date8/1987
Photo CreditDwayne Schiebel Family
Link to PhotoView Photo
Photo Description140 foot terminal racks
Photo Date8/1997
Notesl-r: Model IV autocorrelator CRT terminal; analog rack (top to bottom): timing generator, analog buffers, A/D converter, deformable subreflector controler; H316 computer rack. Photo from Dwayne Schiebel's family. Returned for inclusion in 140 foot time capsule buried in 2015
 []

ItemTypeObject
Title1987 Uncirculated Coin Set, with D and P Mint Marks
Start Date1987
NotesDonated by Carolyn Dunkle, secretary for GB electronics. Returned for inclusion in 140 foot time capsule buried in 2015
 []

ItemTypeReport
TitleNRAO Front End Box Status
Start Date10/1987
NotesTechnical data sheet no. 12, October 1987, applicable to both 300 ft and 140 ft. Returned for inclusion in 140 foot time capsule buried in 2015
PDF FileView PDF
 []

ItemTypePhotograph
TitleGroup Photo - Green Bank staff, with pdf identification guide
Start Date9/14/1987
Photo CreditNRAO/AUI
Link to PhotoView Photo
NotesReturned for inclusion in 140 foot time capsule buried in 2015
PDF FileView PDF
 []

ItemTypeNewspaper
TitlePocahontas Times
Start Date9/17/1987
NotesIssue includes article on 300 foot 25th birthday celebration. Returned for inclusion in 140 foot time capsule buried in 2015
 []

ItemTypePhotograph
Title300 foot control room
Start Date1/24/1972
Photo CreditNRAO/AUI
Link to PhotoView Photo
Photo Description300 foot control room
Photo Date1/24/1972
NotesReturned for inclusion in 140 foot time capsule buried in 2015
 []

ItemTypePhotograph
Title300 foot control room
Photo CreditNRAO/AUI
Link to PhotoView Photo
Photo Description300 foot control room
NotesControl Room photo2, unnumbered and undated NRAO photo (not part of 1/24/72 set of photos). Returned for inclusion in 140 foot time capsule buried in 2015
 []

ItemTypeReport
TitleList of 300 foot operators, 1962-1987
Start Date1962
End Date1987
NotesReturned for inclusion in 140 foot time capsule buried in 2015
PDF FileView PDF
 []

ItemTypeReport
Title140-ft Cassegrain Receiving System
Start Date2/1987
Link to PhotoView Photo
NotesTechnical Data Sheet no. 17, February 1987. "In use at present (8/11/87)" With two 1981 color photos of 140 ft cassegrain receiver. Returned for inclusion in 140 foot time capsule buried in 2015
PDF FileView PDF
 []

ItemTypeReport
TitleTechnological Developments Fostered by Radio Astronomy
Start Date4/1987
NotesReturned for inclusion in 140 foot time capsule buried in 2015
 []

ItemTypeReport
Title25 Years at the Research Frontier with the 300 foot Telescope
Start Date9/1987
NotesFree Handout for 25th Birthday of 300 foot. Returned for inclusion in 140 foot time capsule buried in 2015
 []

ItemTypeReport
AuthorSivasankaran Srikanth
TitleEllipsoidal Reflector for the C-Band Feeds on the 140 ft Telescope (with Polarization Splitter)
Start Date8/2/1984
NotesElectronics Division Technical Note no. 122. Returned for inclusion in 140 foot time capsule buried in 2015
External LinkEDTN 122
 []

ItemTypeReport
AuthorSivasankaran Srikanth
TitleSmall-Aperture Scalar Horn as a Feed for the 7-feed 6-cm Receiver on the 300-ft Telescope
Start Date1/22/1986
NotesElectronics Division Technical Note no. 134. Returned for inclusion in 140 foot time capsule buried in 2015
External LinkEDTN 134
 []

ItemTypeReport
AuthorSivasankaran Srikanth
TitleClear Aperture Feed on the 300-foot Telescope
Start Date9/22/1987
NotesReturned for inclusion in 140 foot time capsule buried in 2015
PDF FileView PDF
 []

ItemTypeObject
TitlePlaque marking location of 300 ft time capsule
PhotographerJeff Hellerman
Photo CreditNRAO/AUI
Link to PhotoView Photo
NotesText on plaque: Sept. 1987. On this date a time capsule was buried beneath this plaque. Please uncover it in 2012 for the 300 ft. telescope's golden anniversary. Returned for inclusion in 140 foot time capsule buried in 2015
 []

ItemTypePhotograph
TitlePhotograph - Opening time capsule
Start Date10/2015
PhotographerMike Holstine
Photo CreditNRAO/AUI
Link to PhotoView Photo
Photo DescriptionDaryl Shinaberry and Rusty Taylor remove the time capsule from its burial place outside the 300 foot control building.
NotesDigital photograph only
 []

ItemTypePhotograph
TitlePhotograph - Opening time capsule
Start Date10/13/2015
PhotographerGene Runion
Link to PhotoView Photo
Photo DescriptionDaryl Shinaberry and Rusty Taylor remove the lid; an audible "whoosh" was heard when the seal was broken.
NotesDigital photograph only
 []

ItemTypePhotograph
TitlePhotograph - Opening time capsule
Start Date10/13/2015
PhotographerMike Holstine
Photo CreditNRAO/AUI
Link to PhotoView Photo
Photo DescriptionThe contents of the time capsule - in pristine condition
NotesDigital photograph only
 []

ItemTypePhotograph
TitlePhotograph - Opening time capsule
Start Date10/13/2015
PhotographerBill Saxton
Photo CreditNRAO/AUI
Link to PhotoView Photo
Photo DescriptionBob Vance, Bob Simon, and Rich Lacasse peer into the time capsule at its contents
NotesDigital photograph only
 []

ItemTypePhotograph
TitlePhotograph - Opening time capsule
Start Date10/13/2015
PhotographerGene Runion
Link to PhotoView Photo
Photo DescriptionBob Vance removes an item from the capsule.
NotesDigital photograph only
 []

ItemTypePhotograph
TitlePhotograph - Opening time capsule
Start Date10/13/2015
PhotographerGene Runion
Link to PhotoView Photo
Photo DescriptionRich Lacasse shows off the pack of punched cards containing a 300 foot observing program.
NotesDigital photograph only
 []

ItemTypePhotograph
TitlePhotograph - Opening time capsule
Start Date10/13/2015
PhotographerBill Saxton
Photo CreditNRAO/AUI
Link to PhotoView Photo
Photo DescriptionBob Simon, Rich Lacasse, and Bob Vance (and attendees in the background) examine time capsule treasures
NotesDigital photograph only
 []

ItemTypePhotograph
TitlePhotograph - Opening time capsule
Start Date10/13/2015
PhotographerBill Saxton
Photo CreditNRAO/AUI
Link to PhotoView Photo
Photo DescriptionSome items from the time capsule
NotesDigital photograph only
 []

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