LEEP Site Information Form (site log) International GPS Service See Instructions at: ftp://igscb.jpl.nasa.gov/pub/station/general/sitelog_instr.txt 0. Form Prepared by (full name) : David Maggert Date Prepared : 2008-05-14 Report Type : UPDATE If Update: Previous Site Log : leep_20070215.log Modified/Added Sections : 2,11 1. Site Identification of the GNSS Monument Site Name : Mt. Lee Four Character ID : LEEP Monument Inscription : IERS DOMES Number : 49902M001 CDP Number : Monument Description : shallow rod/braced antenna mount Height of the Monument : (m) Monument Foundation : (STEEL RODS/CONCRETE BLOCK/ROOF/etc) Foundation Depth : (m) Marker Description : Filled notch in vertical rod Date Installed : 1995-04-06 Geologic Characteristic : Topanga Fm: conglomerate (poorly indurated : matrix with coarse cobbles) Bedrock Type : (IGNEOUS/METAMORPHIC/SEDIMENTARY) Bedrock Condition : (FRESH/JOINTED/WEATHERED) Fracture Spacing : (1-10 cm/10-50 cm/50-200 cm/over 200 cm) Fault zones nearby : (YES/NO/Name of the zone) Distance/activity : (multiple lines) Additional Information : SCIGN - Southern California Integrated GPS : Network. Monument is driven-rod braced type with : 3/4" stainless rods driven to refusal with a : Whacker drill to varied depths, then welded : together. 2. Site Location Information City or Town : Hollywood State or Province : California Country : USA Tectonic Plate : North American Approximate Position (ITRF) X coordinate (m) : -2507463.3769 Y coordinate (m) : -4652631.9932 Z coordinate (m) : 3559086.80534 Latitude (N is +) : +340804.56 Longitude (E is +) : -1181918.32 Elevation (m,ellips.) : 485.0517 Additional Information : Los Angeles County. Reference frame used is : (ITRF2000). Coordinate system used is (WGS84). 3. GNSS Receiver Information 3.1 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : 04374 Firmware Version : NAV 1E24 CHN 1C70 Elevation Cutoff Setting : deg Date Installed : 1995-04-06 Date Removed : 1996-09-23 Temperature Stabiliz. : none Additional Information : First measurements; (USGS Property #G-615681) 3.2 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : 04374 Firmware Version : NAV 1E95 CHN 1D01 Elevation Cutoff Setting : deg Date Installed : 1996-09-23 Date Removed : 1998-02-10 Temperature Stabiliz. : none Additional Information : firmware upgrade; (USGS Property #G-615681) 3.3 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : 04374 Firmware Version : 1F50 Elevation Cutoff Setting : deg Date Installed : 1998-02-10 Date Removed : 1999-06-30 Temperature Stabiliz. : none Additional Information : PJ added here 08-JAN-1999 based on rinex : headers; USGS Property #G-615681 3.4 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : LP03196 Firmware Version : CC00 Elevation Cutoff Setting : 10 deg Date Installed : 1999-06-30 Date Removed : 2007-01-30 Temperature Stabiliz. : none Additional Information : Rx powered off at 18:49 gmt. 3.5 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : LP00221 Firmware Version : CD00 Elevation Cutoff Setting : deg Date Installed : 2007-01-30 Date Removed : (CCYY-MM-DDThh:mmZ) Temperature Stabiliz. : none Additional Information : (multiple lines) 3.x Receiver Type : (A20, from rcvr_ant.tab; see instructions) Satellite System : (GPS/GLONASS/GPS+GLONASS) Serial Number : (A5) Firmware Version : (A11) Elevation Cutoff Setting : (deg) Date Installed : (CCYY-MM-DDThh:mmZ) Date Removed : (CCYY-MM-DDThh:mmZ) Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 4. GNSS Antenna Information 4.1 Antenna Type : ASH700718A NONE Serial Number : 870 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.1620 Marker->ARP North Ecc(m) : Marker->ARP East Ecc(m) : Alignment from True N : deg Antenna Radome Type : NONE Radome Serial Number : Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : 1995-04-06 Date Removed : 1995-05-19 Additional Information : Vertical datum is filed notch in vertical rod. 4.2 Antenna Type : ASH700936A_M SCPL Serial Number : 11475 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.1620 Marker->ARP North Ecc(m) : Marker->ARP East Ecc(m) : Alignment from True N : deg Antenna Radome Type : SCPL Radome Serial Number : Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : 1995-05-19 Date Removed : 2000-10-21 Additional Information : same filed notch used as vertical datum. DM type : antenna installed, old LGP antenna removed. : ANTENNA HEIGHT CONFIRMED TO BE 0.162m ON : 03DEC96. (PREVIOUSLY NOTED AS 0.163 m) 4.3 Antenna Type : ASH700936A_M SCPL Serial Number : 11475 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.1620 Marker->ARP North Ecc(m) : Marker->ARP East Ecc(m) : Alignment from True N : deg Antenna Radome Type : SCPL Radome Serial Number : Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : 2000-10-21 Date Removed : (CCYY-MM-DDThh:mmZ) Additional Information : Shrub overgrowth was trimmed, an action that may : affect the station time series. 4.x Antenna Type : (A20, from rcvr_ant.tab; see instructions) Serial Number : (A*, but note the first A5 is used in SINEX) Antenna Reference Point : (BPA/BCR/XXX from "antenna.gra"; see instr.) Marker->ARP Up Ecc. (m) : (F8.4) Marker->ARP North Ecc(m): (F8.4) Marker->ARP East Ecc(m) : (F8.4) Alignment from True N : (deg; + is clockwise/east) Antenna Radome Type : (A4 from rcvr_ant.tab; see instructions) Radome Serial Number : Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : (CCYY-MM-DDThh:mmZ) Date Removed : (CCYY-MM-DDThh:mmZ) Additional Information : (multiple lines) 5. Surveyed Local Ties 5.1 Tied Marker Name : NONE Tied Marker Usage : (SLR/VLBI/LOCAL CONTROL/FOOTPRINT/etc) Tied Marker CDP Number : (A4) Tied Marker DOMES Number : (A9) Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : (m) dy (m) : (m) dz (m) : (m) Accuracy (mm) : (mm) Survey method : (GPS CAMPAIGN/TRILATERATION/TRIANGULATION/etc) Date Measured : (CCYY-MM-DDThh:mmZ) Additional Information : (multiple lines) 5.x Tied Marker Name : Tied Marker Usage : (SLR/VLBI/LOCAL CONTROL/FOOTPRINT/etc) Tied Marker CDP Number : (A4) Tied Marker DOMES Number : (A9) Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : (m) dy (m) : (m) dz (m) : (m) Accuracy (mm) : (mm) Survey method : (GPS CAMPAIGN/TRILATERATION/TRIANGULATION/etc) Date Measured : (CCYY-MM-DDThh:mmZ) Additional Information : (multiple lines) 6. Frequency Standard 6.1 Standard Type : INTERNAL Input Frequency : Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 6.x Standard Type : (INTERNAL or EXTERNAL H-MASER/CESIUM/etc) Input Frequency : (if external) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 7. Collocation Information 7.x Instrumentation Type : (GPS/GLONASS/DORIS/PRARE/SLR/VLBI/TIME/etc) Status : (PERMANENT/MOBILE) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 8. Meteorological Instrumentation 8.1.x Humidity Sensor Model : Manufacturer : Serial Number : Data Sampling Interval : (sec) Accuracy (% rel h) : (% rel h) Aspiration : (UNASPIRATED/NATURAL/FAN/etc) Height Diff to Ant : (m) Calibration date : (CCYY-MM-DD) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 8.2.x Pressure Sensor Model : Manufacturer : Serial Number : Data Sampling Interval : (sec) Accuracy : (hPa) Height Diff to Ant : (m) Calibration date : (CCYY-MM-DD) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 8.3.x Temp. Sensor Model : Manufacturer : Serial Number : Data Sampling Interval : (sec) Accuracy : (deg C) Aspiration : (UNASPIRATED/NATURAL/FAN/etc) Height Diff to Ant : (m) Calibration date : (CCYY-MM-DD) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 8.4.x Water Vapor Radiometer : Manufacturer : Serial Number : Distance to Antenna : (m) Height Diff to Ant : (m) Calibration date : (CCYY-MM-DD) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 8.5.x Other Instrumentation : (multiple lines) 9. Local Ongoing Conditions Possibly Affecting Computed Position 9.1.x Radio Interferences : (TV/CELL PHONE ANTENNA/RADAR/etc) Observed Degradations : (SN RATIO/DATA GAPS/etc) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Additional Information : (multiple lines) 9.2.x Multipath Sources : (METAL ROOF/DOME/VLBI ANTENNA/etc) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Additional Information : (multiple lines) 9.3.x Signal Obstructions : (TREES/BUILDINGS/etc) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Additional Information : (multiple lines) 10. Local Episodic Effects Possibly Affecting Data Quality 10.x Date : (CCYY-MM-DD/CCYY-MM-DD) Event : (TREE CLEARING/CONSTRUCTION/etc) 11. On-Site, Point of Contact Agency Information Agency : USGS Preferred Abbreviation : USGS Mailing Address : Primary Contact Contact Name : Nancy King Telephone (primary) : 626-583-7815 Telephone (secondary) : Fax : 626-583-7827 E-mail : nking@usgs.gov Secondary Contact Contact Name : Keith Stark Telephone (primary) : 818-438-6224 Telephone (secondary) : Fax : E-mail : stark@dukester.com Additional Information : (multiple lines) 12. Responsible Agency (if different from 11.) Agency : Preferred Abbreviation : (A10) Mailing Address : Primary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Secondary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Additional Information : (multiple lines) 13. More Information Primary Data Center : UNAVCO Boulder Facility Archive Secondary Data Center : Scripps Orbit and Permanent Array Center URL for More Information : http://www.unavco.org Hardcopy on File Site Map : Y Site Diagram : Y Horizon Mask : Y Monument Description : Y Site Pictures : Y Additional Information : (multiple lines) Antenna Graphics with Dimensions ASH700936A_M ASH700936B_M ASH700936C_M ASH700936D_M ----- / + \ <-- 0.128 L2 | + | <-- 0.110 L1 +--------------------------------------------------+ <-- 0.102 TCR | | | | | | | | +-+--------------------------------------------------+-+ <-- 0.038 +-------------------+-------------+--------------------+ <-- 0.035 BCR | | =| | +------x------+ <-- 0.000 BPA=ARP <-- 0.381 --> 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 TOP: Top of Pole