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) : Kazuhiro Takashima Date prepared : 2000-Apr-4 Report type : new Prepared by (full name) : Kensuke Kokado Date of update : 2008-Aug-1 Report type : Update Update sections : 2, 3, 6, 8, 11 1. Site identification Site name : Geographical Survey Institute Tsukuba 32m Antenna Site 8-letter code : TSUKUB32 Site 2-letter code(s) : Ts IERS DOMES number : 21730S007 CDP occupation code : TSUKUB32 CDP monument number : 7345 Surveyed into national network? : Yes IGS station code : TSKB ILRS station name : Additional information : 2. Site information 2.1 Site location information City or Town : Tsukuba State or Province : Ibaraki Country : Japan Tectonic plate : North American Plate Approximate position X coordinate (m) : -3957408.779 Y coordinate (m) : 3310229.403 Z coordinate (m) : 3737494.800 Latitude (deg) : 36.1031N Longitude (deg) : 140.0887E Elevation (m) : 44.6 Source of position : GSI-VLBI Additional information : moved 43.7mm upward in April 1999 because of Az rail replacement 2.2 Site local survey network information Number of reference markers :13 Type of marker : pillar and ground marker Frequency of surveying : planning Surveying method : TS (directions and distances), levelling, GPS Survey instruments used : Accuracy : Survey performed by : Geographical Survey Institute Survey documentation : Most recent survey date : 2008-Feb-22 Results provided to IERS: Results provided to CDDIS: Person responsible : Additional information : GSI implemented local survey twice at Tsukuba site. 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 : Site diagram : nsTssm02.pdf Horizon mask diagram : Monument description : Site photographs : nsTssm01.jpg URLs for reference Site map : Site diagram : Horizon mask : Monument description : Site photographs : http://vldb.gsi.go.jp/sokuchi/vlbi/en/facilities/tsukub32.html Additional information : (multiple lines allowed) 3. Antenna information Diameter (m) : 32m Axis type : AZEL Axis offset (m) : 0.62m Slew rate first axis : 180 (deg/min) Slew rate second axis : 180 (deg/min) Limit stops first axis : 710, 10(upper, lower deg) Limit stops second axis : 88, 5(upper, lower deg) Horizon mask data : 0 5/360 5 Occupation dates : 1998-Jun-06 to Present Additional information : 4. Receiver information Feed location : cassegrain focus Feed type : X 1st-stage amplifier : cooled HEMT X bandwidth (MHz) : 1200 X Tsys at zenith (K) : 50 X SEFD (Jy) : 300 X aperture efficiency : (optional) X LO frequencies (MHz) : 7280 7680 8080 S 1st-stage amplifier : FET(room temperature) S bandwidth (MHz) : 400(260) S Tsys at zenith (K) : 75 S SEFD (Jy) : 360 S aperture efficiency : (optional) S LO frequencies (MHz) : 1600 K 1st-stage amplifier : cooled HEMT K bandwidth (MHz) : 5000 K Tsys at zenith (K) : 75 K SEFD (Jy) : 805 K aperture efficiency : (optional) K LO frequencies (MHz) : Phase calibrator type : Modified from Haystack design with 5 MHz input and temperature controlled (Interferometrics Inc.) Additional information : BPF (2100 - 2360MHz) is installed in S band. 5. Cables between receiver and back end Length of cable run : 150m X band cable type : optical fiber X band freq. bandpass : 7780-8980(MHz) S band cable type : optical fiber S band freq. bandpass : 2100-2500(2360)(MHz) K band cable type : optical fiber K band freq. bandpass : 20.5-25.5(GHz) LO ref signal cable type: coaxial LO ref signal freq. : 5(MHz) Phase cal ref signal cable type: coaxial Phase cal ref signal freq. : 5(MHz) Cable meas. system type : Interferometrics Inc. cable cal; 5 MHz round trip measured with vector voltmeter Additional information : BPF (2100 - 2360MHz) is installed in S band. 6. Data acquisition system information 6.1 Video/baseband converter set (group each set of up to 16 mixers with similar characteristics) 6.1.1 Type of converters : K4-2 (Type2) Number of mixers : 16 Sidebands available : USB, LSB Number of mixers with the following filters in all sideband outputs: 2 MHz : 0 4 MHz : 0 8 MHz : 16 16 MHz : 16 32 MHz : 0 Additional information : Mainly used at present. IF signals are up-converted to 500-1000MHz frequency range. 6.1.2 Type of converters : K4-2 (Type1) Number of mixers : 16 Sidebands available : USB Number of mixers with the following filters in all sideband outputs: 2 MHz : 16 4 MHz : 0 8 MHz : 0 16 MHz : 16 32 MHz : 0 Additional information : IF signals are up-converted to 500-1000MHz frequency range. 6.2 Formatter Formatter type : K5 Serial number or rack ID: Additional information : Function of the formatter is included in the K5 system. 6.3 Decoder Decode type : K5 Additional information : Function of the decorder is included in the K5 system. 6.4 IF distribution IF distributor type : K4-2 Additional information : Used with K4-2 Video Converters. Distributes 4 IF signals. 8 output signals for each IF. 6.5 Up/down converters X up/down converter freq.: S up/down converter freq.: Additional information : 6.6 Other rack equipment : Additional information : 6.7 Recorder Recorder type : K5 Number of recorders : 1 Tape type : Disk Additional information : 6.8 Data Acquisition System Configuration Types Supported (list only those that are actually usable) 6.8.1 Configuration 1 : 6.1.1 K4-2 Video Converters (Type2) : 6.4 K4-2 IF Distributor : 6.2 K5 Formatter : 6.7 K5 Recorder 7 Meteorological instrumentation 7.1 Humidity sensor Manufacturer : OGASAWARA KEIKI CO., LTD. Model : Accuracy : 3 % relative humidity Effective dates : 1998-Jun-06 to present Additional information : Relative humidity is calculated from ambient temperature and dew point temperature. 7.2 Pressure sensor Manufacturer : OGASAWARA KEIKI CO., LTD. Model : Accuracy : 0.2 hPa Effective dates : 1998-Jun-06 to present Height relative to VLBI : -10m Additional information : 7.3 Temperature sensor Manufacturer : OGASAWARA KEIKI CO., LTD. Model : Accuracy : 0.1 degree Effective dates : 1998-Jun-06 to present Additional information : 8. Time and frequency standards 8.1 Standard type : H-maser Installed dates : 1997-Jan-01 to present Manufacturer : Anritsu Model number or ID : RH401A Additional information : (multiple lines allowed) 8.2 Standard type : GPS timing receiver Installed dates : 2008-Mar-15 to present Manufacturer : Nihon Tsushinki Model number or ID : 7651B Additional information : Mainly used at present 8.3 Standard type : GPS timing receiver Installed dates : 1998-Apr-01 to present Manufacturer : TAPR Model number or ID : TAC-2 Additional information : (multiple lines allowed) 8.4 Standard type : GPS timing receiver Installed dates : 1999-Feb-01 to present Manufacturer : Trimble Model number or ID : Thunderbolt Additional information : (multiple lines allowed) 9. Auxilliary equipment information Type of equipment : (WVR, etc.) Installed dates : (yyyy-mmm-dd to yyyy-mmm-dd) Manufacturer : Model number or ID : Additional information : (multiple lines allowed) 9.x (add sections for additional auxilliary equipment) 10. Co-location information 10.1 Instrument type : GPS Instrument name : TSKB Status : Permanent Effective dates : 1993-Dec-15 to present Included in local survey: Yes Additional information : IGS station 10.2 Instrument type : GPS Instrument name : VLBI-GPS Status : Permanent Effective dates : 1998-Jun-6 to present Included in local survey: Yes Additional information : attached the top of VLBI antenna 11. Field System computer information System vendor : AuthenticAMD CPU : AMD Athlon CPU speed : 2.0 GHz Memory : 1.0 Gbytes Disk : 128 Gbytes Linux release : 3.0 Internet connection : via firewall Antenna interface type : GPIB/serial Spare FS computer? : Yes 12. Known RFI sources 12.1 Center frequency : (MHz) Approximate bandwidth : Approximate az/el range : (give range affected by RFI) Additional informaiton : There are some RFI in S band. We are investigating it in detail. 12.x (add sections for multiple RFI sources and frequencies) 13. On-site contact information Agency : Geographical Survey Institute Shipping address : Kitasato 1, Tsukuba Ibaraki 305-0811 JAPAN Postal address : URL of site web page : http://vldb.gsi.go.jp/sokuchi/vlbi/en/facilities/tsukub32.html On-site Friend of VLBI Name : Shinobu Kurihara Telephone (primary) : +81-298-64-4812 Telephone (alternate) : Fax : +81-298-64-1802 E-mail : skuri@gsi.go.jp On-site VLBI operations room Telephone (primary) : +81-298-64-4565 Telephone (alternate) : +81-298-64-1111 (ex. 4565) Fax : None E-mail : gsi32m@garnet.gsi.go.jp Other on-site contact Name : Kensuke Kokado Telephone (primary) : +81-298-64-4812 Telephone (alternate) : Fax : +81-298-64-1802 E-mail : kokado@gsi.go.jp Additional information : GSI VLBI group email address vlbi@gsi.go.jp 14. Responsible agency (if different from on-site information) Same with information in 13. 15. More information Additional information : (multiple lines allowed)