********************************** SITE INFORMATION FORM ********************************** 0. Form Prepared by (full name): Jeff Behr Date : May 1, 1996 Report type : UPDATE (NEW or UPDATE) 1. Site Identification of the GPS monument Site Name : China Lake (SCIGN/PGGA) 4 char ID : COSO Monument Inscription : None 3/4" diameter, vertical stainless steel rod embedded in outcrop of granitic basement. Antenna height measured from top of 1" diameter ring welded to 3/4" rod. IERS DOMES Number : 40469M001 CDP Number : Not assigned Date : Additional information : SCIGN - Southern California Integrated GPS Network PGGA - Permanent GPS Geodetic Array 2. Site Location City : North of Ridgecrest,Inyo County, California Country : USA Tectonic Plate : North American plate Additional information : ITRF93 coordinates (m) -- SOPAC GLOBK processing X -2411148.2270 Y -4571430.4858 Z 3727461.5568 Epoch 1995.60 3. GPS Receiver a) Type : Ashtech Z-XII3 (Z12) Model 700570-6 Serial Number : 03233 (Loaner II-93) Firmware Version : NAV 1E00, CHN 1C50 Date : August 16, 1995 Note : First measurements 4. GPS Antenna a) Type : Ashtech L1/L2 P Model 700228-B (Rev. B) Serial Number : B1163 Cable : 30 m Vertical Antenna Height: 0.0663 m Antenna Reference Point: BPA (Bottom of Preamplifier) Date : August 16, 1995 b) Type : Ashtech Choke Ring Model 700936 (Rev. D) Serial Number : 12660 Cable : 30 m Vertical Antenna Height: 0.0625 m Antenna Reference Point: BPA (Bottom of Preamplifier) Date : April 29, 1996 Additional Information : Direct height measurement from top of SS collar on threaded rod to pre-amp base. 5. Local Site Ties -- In progress 6. Frequency standard H-maser / / Cesium / / Quartz / / Internal / X / Other (specify) : Internal Date : August 16, 1995 7. Collocation -- None 8. On-site, Point of Contact Agency Information Agency : Geothermal Program Office Naval Air Weapons Station - China Lake Contact : Steven Bjornstad Address : Geothermal Program Office (8236000) Naval Air Weapons Station China Lake, CA 93555 Telephone : (619) 939-4048 E-mail : Steven_Bjornstad@imdgw.ChinaLake.Navy.MIL Fax : (619) 939-2449 9. Responsible Operations Agency (if different from item 8) Agency : Scripps Institution of Oceanography Contact : Jeff Behr / Yehuda Bock Address : IGPP 0225, Scripps Institution of Oceanography 9500 Gilman Drive, La Jolla, CA 92093-0225 Telephone : (619) 534-7692 (8487/5292) E-mail : behr@pgga.ucsd.edu, bock@pgga.ucsd.edu Fax : (619) 534-9873 10. Please insert here the character graphics corresponding to the antenna type. Check, complete or change if necessary the antenna dimensions. a) Ashtech: GEODETIC L1/L2 L ^ +-------------------+ +--+ +-------+-----------+-----------+--------+ +--+ <-- 0.064 TGP=L1=L2 +-+--+ +------------+-------------+-------------+ +--+-+ <-- 0.060 BGP |-------------| |-------------| |-------------| |-------------| +------x------+ <-- 0.000 ARP=BPA <-- 0.080 --> <-- 0.220 --> <-- 0.286 --> b) Ashtech w/Dorne-Margolin Choke Ring (& Radome) ----- / + \ <-- 0.128 L2 | + | <-- 0.110 L1 +--------------------------------------------------+ <-- 0.102 TCR | | | | | | | | +-+--------------------------------------------------+-+ <-- 0.038 BCR +-------------------+-------------+--------------------+ <-- 0.035 BGP | | =| | +------x------+ <-- 0.000 m ARP <-- 0.381 --> NOTE: Dimensions and Offsets Presumed to be same as for TurboRogue DM-T (tests pending) ARP: Antenna Reference Point L1 : L1 Phase Center L2 : L2 Phase Center TCR: Top of Chokering BCR: Bottom of Chokering TGP: Top of Ground Plane BGP: Bottom of Ground Plane TPA: Top of Preamplifier BPA: Bottom of Preamplifier 11. Hard copy information The next items should be compiled and sent to the Central Bureau (see original IGS Station Information Report, or contact the CB for forms). Please mark 'X' if on file or date expected to be available. Site Map : Site Diagram : Horizon Mask : Monument description : Site pictures :