Network Station Configuration File International VLBI Service Refer to the instructions in the file ftp://ivscc.gsfc.nasa.gov/config/instructions.txt for how to fill out and submit this form. 990624 nrv Form version 0.5 990702 nrv Form version 0.6 990713 nrv Form version 0.7 991020 nrv Form version 0.8 0. Form Prepared by (full name) : Charles (Chuck) Kodak Date prepared : 2000-Apr-19 Report type : new Prepared by (full name) : Charles (Chuck) Kodak Date prepared : 2001-Apr-09 Report type : update Updated sections : 2.2,3, 4, 6.3, 7.5(new), 13, 14 1. Site identification Site name : GREENBELT Site 8-letter code : GGAO7108 Site 2-letter code(s) : Gg IERS DOMES number : 40451M125 CDP occupation code : 71085301 CDP monument number : 7108 Surveyed into national network? : yes IGS station code : GODE ILRS station name : GODL Additional information : 2. Site information 2.1 Site location information City or Town : Greenbelt State or Province : Maryland Country : United States of America Tectonic plate : North American Approximate position X coordinate (m) : 1130794.76936 Y coordinate (m) : -4831233.80170 Z coordinate (m) : 3994217.03883 Latitude (deg) : 39.0219 N Longitude (deg) : 76.8265 W Elevation (m) : 15.0 Source of position : local survey Additional information : 2.2 Site local survey network information Number of reference markers : 3 Type of marker : pillar with imbedded disk Frequency of surveying : Annual Surveying method : directions, distances, leveling, GPS, etc. Survey instruments used : theodolite, GPS,EDMI Accuracy : (+/- 2 mm) Survey performed by : Honeywell Techonlogy Solutions, Inc. formerly AlliedSignal Technical Services Corp. Survey documentation : Report of Survey and HAVAGO adjustment Most recent survey date : 1996-Jan-05 Results provided to IERS: yes Results provided to CDDIS: yes Person responsible : James L. Long, Honeywell-TSI,Inc Additional information : 2.3 Site descriptive information Electronic file available at IVSCC: (Please upload these files to ftp://ivscc.gsfc.nasa.gov/incoming and send e-mail to ivscc@ivscc.gsfc.nasa.gov telling the names.) ns is for Network Stations (don't change) Xy is station 2-letter code sm, sd, hm, md, sp indicate the type of file (don't change) NN are numbers, 01 is the first such file, 02 the second, etc. .type is the file type, .ps for PostScript, .jpg for JPEG, etc. Site map : nsGgsmNN.type Site diagram : nsGgsmNN.type Horizon mask diagram : nsGgsmNN.type Monument description : nsGgsmNN.type Site photographs : nsGgsmNN.type URLs for reference Site map : Site diagram : Horizon mask : Monument description : Site photographs : Additional information : 3. Antenna information Diameter (m) : 5 Axis type : AZEL Axis offset (m) : 0.0 Slew rate first axis : 3o/s Slew rate second axis : 3o/s Limit stops first axis : -270o, +270o Limit stops second axis : 90o, 6.8o Horizon mask data : Occupation dates : (yyyy-mmm-dd to Present) Additional information : 4. Receiver information Feed location : S-Band prime focus, X-Band cassegrain focus Feed type : dichroic X 1st-stage amplifier : cooled HEMT X bandwidth (MHz) : 800MHz, -2dB X Tsys at zenith (K) : 55 K X SEFD (Jy) : 24,000 X aperture efficiency : 45 % X LO frequencies (MHz) : 8080MHz S 1st-stage amplifier : uncooled HEMT S bandwidth (MHz) : 240MHz, -2dB S Tsys at zenith (K) : 45 K S SEFD (Jy) : 26,500 S aperture efficiency : 42 % S LO frequencies (MHz) : 2020MHz Phase calibrator type : NASA/CDP with 5 MHz input and temperature controller Additional information : 5. Cables between receiver and back end Length of cable run : 111 m X band cable type : RG214 X band freq. bandpass : 900MHz S band cable type : RG214 S band freq. bandpass : 300MHz LO ref signal cable type: RG214 LO ref signal freq. : 5MHz Phase cal ref signal cable type: RG214 Phase cal ref signal freq. : 5MHz Cable meas. system type : MarkIII cable cal Additional information : 6. Data acquisition system information 6.1 Video/baseband converter set (group each set of up to 16 mixers with similar characteristics) Type of converters : MarkIV Number of mixers : MarkIII type has 1 mixer per converter Sidebands available : U&L Number of mixers with the following filters in all sideband outputs: 2 MHz : 15 4 MHz : 15 8 MHz : 15 16 MHz : 15 32 MHz : 0 Additional information : 6.1.x (add sections for each additional video/baseband converter set) 6.2 Formatter Formatter type : MarkIV Serial number or rack ID: Formatter - Haystack 02 Additional information : 6.2.x (add sections for each additional formatter) 6.3 Decoder Decode type : MarkIV Additional information : 6.3.x (add sections for each additional decoder) 6.4 IF distribution IF distributor type : MarkIII/IV+IF3 Additional information : 6.4.x (add sections for each additional IF distribution) 6.5 Up/down converters X up/down converter freq.: S up/down converter freq.: Additional information : 6.5.x (add sections for each additional converter) 6.6 Other rack equipment : Additional information : 6.6.x (add lines or sections for other types of rack equipment) 6.7 Recorders Recorder type : MarkIV Number of recorders : 1 Tape type : thin Additional information : 6.7.x (add sections for each recorder type) 6.8 Data Acquisition System Configuration Types Supported (list only those that are actually usable) 6.8.1 Configuration 1 : (list elements from section 6 that : make a usable configuration) : Example: : 6.1.1 MKIV VCs : 6.2 MKIV formatter : 6.3 MKIII Decoder : 6.4 MKIII IFD+IF3 distribution : 6.5 None : 6.7 MKIV recorder 6.8.x (list additional configurations) 7 Meteorological instrumentation 7.1 Humidity sensor Manufacturer : WeatherMeasures Model : 5124D Accuracy : +/-0.5% 0-15%RH, +/-3% 15-80%RH, +/-6% 80-100%RH Effective dates : 1982 to present Additional information : 7.2 Pressure sensor Manufacturer : Setra Model : B245 Accuracy : 650 to 1100mbar Effective dates : 1982 to present Height relative to VLBI : 3.8m Additional information : 7.3 Temperature sensor Manufacturer : WeatherMeasure Model : HUP14U Accuracy : +/- 1o Effective dates : 1982 to present Additional information : 7.4 Meteorological instrumentation (Future / Under development) Manufacturer : Paroscientific,Inc. Model : MET3A Accuracy : +/-0.08 hPa FS, +/-0.1 deg C FS, +/-2% RH @25C Effective dates : Current Production Height relative to VLBI : TDB Additional information : 8. Time and frequency standards 8.1 Standard type : H-maser Installed dates : 1993 to present Manufacturer : NASA / APL Model number or ID : NR-12 Additional information : 8.x (add more sections for each standard) 9. Auxilliary equipment information Type of equipment : Installed dates : Manufacturer : Model number or ID : Additional information : 9.x (add sections for additional auxilliary equipment) 10. Co-location information 10.1 Instrument type : Doris Instrument name : Status : Permanent Effective dates : NEW May, 2000 Included in local survey: yes Additional information : 10.2 Instrument type : Glonass Instrument name : 3S Navigation (gone) Ashtech Z-18 (present) Status : Permanent Effective dates : 1995 to present Included in local survey: yes Additional information : 10.3 Instrument type : Prare Instrument name : Dorier Status : Permanent Effective dates : 1997 to present Included in local survey: yes Additional information : INOPERATIVE 10.4 Instrument type : SLR Instrument name : Moblas-7 Status : Permanent Effective dates : 1981 to present Included in local survey: yes Additional information : 10.5 Instrument type : GPS Instrument name : GODE (AO ACT) and GODZ (Ashtec Z-12) Status : Permanent Effective dates : 1993 to present Included in local survey: yes Additional information : 10.x (add sections for each type) 11. Field System computer information System vendor : SWT CPU : PII CPU speed : 200MHz Memory : 64Mbytes Disk : 1.4Gb Linux release : 6.x Internet connection : direct Antenna interface type : serial Spare FS computer? : no 12. Known RFI sources 12.1 Center frequency : (MHz) Approximate bandwidth : Approximate az/el range : (give range affected by RFI) Additional informaiton : (multiple lines allowed, give estimate of strength of interference) 12.x (add sections for multiple RFI sources and frequencies) 13. On-site contact information Agency : Honeywell-TSI, Inc. Shipping address : 7515 Mission Drive SLR/VLBI Lanham, MD 20706 Postal address : (if different, multiple lines) URL of site web page : On-site Friend of VLBI Name : Jay Redmond Telephone (primary) : 301.805.3972 Telephone (alternate) : 301.805.3997 Fax : 301.805.3974 E-mail : jay.readmond@honeywell-tsi.com On-site VLBI operations room Telephone (primary) : 301.286.3877 Telephone (alternate) : 301.286.0811 Fax : 301.286.4075 E-mail : mv3@cddis.gsfc.nasa.gov Other on-site contact Name : Charles A. Kodak Telephone (primary) : 301.805.3968 Telephone (alternate) : 301.805.3997 Fax : 301.805.3974 E-mail : Charles.Kodak@honeywell-tsi.com Additional information : (multiple lines allowed) 14. Responsible agency (if different from on-site information) Agency : Goddard Space Flight Center Code 920.3 Shipping address : NASA/GSFC, Greenbelt MD 20771 Postal address : URL of agency web page : Lupus.gsfc.nasa.gov Primary administrative agency contact Contact person : Dr. Thomas Clark Telephone (primary) : 301.614.5866 Telephone (alternate) : Fax : 301.614.6015 E-mail : clark@tomcat.gsfc.nasa.gov Thomas.A.Clark.1@gsfc.nasa.gov Alternate agency contact Contact person : Bill Wildes Telephone (primary) : 301.614.5967 Telephone (alternate) : Fax : 301.614.5866 E-mail : wtw@gemini.gsfc.nasa.gov Additional information : (multiple lines allowed) 15. More information Additional information : (multiple lines allowed)