GODE Site Information Form International GPS Service for Geodynamics 0. Form Prepared by (full name) : David A. Stowers Date Prepared : 05-JUN-2002 Report Type : UPDATE Prepared Using : vi 1. Site Identification of the GPS Monument Site Name : GGAO (Greenbelt) Four Character ID : GODE Monument Inscription : JPL 4006 IERS DOMES Number : 40451M123 CDP Number : (none) Date Installed : 02-APR-1993 hh:mm UT Geologic Characteristic : (BEDROCK/CLAY/CONGLOMERATE/GRAVEL/SAND/etc) Bedrock Type : (IGNEOUS/METAMORPHIC/SEDIMENTARY) Bedrock Condition : (FRESH/JOINTED/WEATHERED) Fracture Spacing : (1-10 cm/10-50 cm/50-200 cm/over 200 cm) Notes : (multiple lines) Additional Information : See Question #5 : There appears to be an error in Question #5, : Table "GORF 1993 HAVAGO ADJUSTMENT", the first : line indicates that CDP 7102 corresponds to : IERS-40451-DOMES# M123. According to "IERS : Technical Note 20, Results and Analysis of the : ITRF94" March 1996, Table T2 "Directory of IERS : Stations" pT21, CDP 7102 corresponds to : 40451M102. GODE, 40451M123, does not have a CDP : number. 2. Site Location Information City or Town : Greenbelt State or Province : Maryland Country : USA Tectonic Plate : NOAM Approximate Position X coordinate (m) : 1130773.9017 Y coordinate (m) : -4831253.5821 Z coordinate (m) : 3994200.3971 Latitude (deg) : 39.02172715 Longitude (deg) : -76.82682789 Elevation (m) : 14.5082 Additional Information : Goddard Space Flight Center : Latitude, Longitude and Elevation derived from : "IERS Technical Note 20, Results and Analysis : of the ITRF94" March 1996; Table 5 "ITRF94 : Class A Station Coordinates at Epoch 1993.0", : pT64. 3. GPS Receiver Information 3.1 Receiver Type : ROGUE SNR-8000 Serial Number : 129 Firmware Version : 93.06.08 Date Installed : 17-APR-1993 hh:mm UT Date Removed : (dd-MMM-yyyy hh:mm UT) Additional Information : (multiple lines) 3.2 Receiver Type : ROGUE SNR-8000 Serial Number : R148 Firmware Version : 3.2 Date Installed : 12-DEC-1994 hh:mm UT Date Removed : (dd-MMM-yyyy hh:mm UT) Additional Information : (multiple lines) 3.3 Receiver Type : AOA SNR-12 ACT Serial Number : R253-U Firmware Version : 3.3.32.2 Date Installed : 18-MAY-1999 14:45 UT Date Removed : (dd-MMM-yyyy hh:mm UT) Additional Information : operated at 1s samprate : converted to 30s data at JPL : using do_npt with lfit_2 option 3.4 Receiver Type : AOA SNR-12 ACT Serial Number : R253-U Firmware Version : 3.3.32.5 Date Installed : 16-APR-2002 18:00 UT Date Removed : 03-MAY-2002 19:00 UT Additional Information : firmware update, : now run at 30s samprate 3.5 Receiver Type : AOA SNR-8000 ACT Serial Number : T341-U Firmware Version : 3.3.32.5 Date Installed : 03-MAY-2002 19:10 UT Date Removed : (dd-MMM-yyyy hh:mm UT) Additional Information : failed receiver replacement 3.x Receiver Type : Serial Number : Firmware Version : Date Installed : (dd-MMM-yyyy hh:mm UT) Date Removed : (dd-MMM-yyyy hh:mm UT) Additional Information : (multiple lines) 4. GPS Antenna Information 4.1 Antenna Type : AOAD/M_T JPLA Serial Number : 129 Antenna Height (m) : 0.0614 Antenna Reference Point : BPA Degree Offset from North : Antenna Radome Type : JPLA Date Installed : 17-APR-1993 hh:mm UT Date Removed : 01-JUN-2001 17:00 UT Additional Information : (multiple lines) 4.2 Antenna Type : AOAD/M_T JPLA Serial Number : 129 Antenna Height (m) : 0.0614 Antenna Reference Point : BPA Degree Offset from North : Antenna Radome Type : JPLA Date Installed : 01-JUN-2001 19:00 UT Date Removed : (dd-MMM-yyyy hh:mm UT) Additional Information : antenna electronics modified internally; : LNA replaced with lower NF unit, : bandpass element relocated from between : antenna element and LNA, to after LNA. : : Note radome changes (on/off) in 2002 - : (local survey/testing) : DAY Dome Removed Dome Replaced : 135 13:30 UTC 21:30 UTC : 136 15:30 UTC 20:30 UTC : 141 14:00 UTC 19:00 UTC : 144 13:30 UTC 21:00 UTC : 148 13:30 UTC 21:00 UTC : 150 14:00 UTC 21:00 UTC : 151 13:30 UTC 21:00 UTC 4.x Antenna Type : Serial Number : Antenna Height (m) : (m) Antenna Reference Point : (BCR/BPA) Degree Offset from North : Antenna Radome Type : Date Installed : (dd-MMM-yyyy hh:mm UT) Date Removed : (dd-MMM-yyyy hh:mm UT) Additional Information : (multiple lines) 5. Local Site Ties 5.x Monument Name : Site Ref CDP Number : (XXXX) Site Ref Domes Number : (XXXXXXXXX) Differential Components from GPS Mark to Site Reference (ITRS) dx (m) : (m) dy (m) : (m) dz (m) : (m) Accuracy (mm) : (mm) Date Measured : (dd-MMM-yyyy hh:mm UT) Additional Information : see IGSMAIL #233 6. Frequency Standard 6.1 Standard Type : H-MASER Frequency : 5 MHz Effective Dates : 01-AUG-1993 hh:mm UT Notes : clock steering disabled 6.2 Standard Type : INTERNAL Frequency : 5 MHz Effective Dates : 03-NOV-1999 17:00 UT Notes : clock steering enabled 6.3 Standard Type : H-MASER Frequency : 5 MHz Effective Dates : 05-NOV-1999 17:30 UT Notes : clock steering disabled 6.4 Standard Type : INTERNAL Frequency : 5 MHz Effective Dates : 03-JUN-2002 hh:mm UT Notes : clock steering disabled 6.x Standard Type : (H-MASER/CESIUM/QUARTZ/INTERNAL/RUBIDIUM) Frequency : Effective Dates : (dd-MMM-yyyy - dd-MMM-yyyy) Notes : (multiple lines) 7. Collocation Information 7.x Instrumentation Type : SLR/VLBI Status : PERMANENT Effective Dates : (dd-MMM-yyyy - dd-MMM-yyyy) Notes : (multiple lines) 8. Meteorological Instrumentation 8.1 Humidity Sensor Model : Manufacturer : Data Frequency : Accuracy (% rel h) : (% rel h) Effective Dates : (dd-MMM-yyyy - dd-MMM-yyyy) Notes : (multiple lines) 8.2 Pressure Sensor Model : Manufacturer : Data Frequency : Accuracy (mbar) : (mbar) Height Diff to GPS (m) : (m) Effective Dates : (dd-MMM-yyyy - dd-MMM-yyyy) Notes : (multiple lines) 8.3 Temperature Sensor Model : Manufacturer : Data Frequency : Accuracy (deg C) : (deg C) Effective Dates : (dd-MMM-yyyy - dd-MMM-yyyy) Notes : (multiple lines) 8.4 Water Vapor Radiometer : Manufacturer : Distance to GPS (m) : (m) Elev Diff to GPS (m) : (m) Effective Dates : (dd-MMM-yyyy - dd-MMM-yyyy) Notes : (multiple lines) 8.5 Other Instrumentation : (multiple lines) 9. On-Site, Point of Contact Agency Information Agency : NASA Goddard Space Flight Center Mailing Address : Space Geodesy Branch, Code 926.9 : NASA/GSFC : Greenbelt, MD 20771 USA Primary Contact Contact Name : Chuck Kodak Telephone (primary) : 301-286-0811 Telephone (secondary) : Fax : 301-286-4943 E-mail : Charles.Kodak@Honeywell-tsi.com Secondary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Additional Information : (multiple lines) 10. Responsible Agency (if different from 9.) Agency : JPL Mailing Address : 4800 Oak Grove Drive : Pasadena, CA 91109 USA Primary Contact Contact Name : David A. Stowers Telephone (primary) : 1-818-354-7055 Telephone (secondary) : Fax : 1-818-393-4965 E-mail : dstowers@jpl.nasa.gov Secondary Contact Contact Name : Network Engineer/UNAVCO Telephone (primary) : 303-497-8000 Telephone (secondary) : Fax : 303-497-8028 E-mail : ruud or kfeaux @unavco.ucar.edu Additional Information : Oivind Ruud (x8030) or Karl Feaux (x8037) 11. More Information URL for More Information : Hardcopy on File Site Map : Site Diagram : Horizon Mask : Monument Description : Site Pictures : Additional Information : (multiple lines) Antenna Graphics with Dimensions TURBOROGUE: AOA/M_T ----- / + \ <-- 0.128 L2 | + | <-- 0.110 L1 +--------------------------------------------------+ <-- 0.102 TCR | | | | | | | | +-+--------------------------------------------------+-+ <-- 0.038 +-------------------+-------------+--------------------+ <-- 0.035 BCR | | =| | +----+-x-+----+ ------------ <-- 0.000 BPA=ARP | | | | | | | | "Spike" | | 6.14 cm \ / | \ / | V | Stainless-steel =====================X======================== plate in concrete pier. "X" is survey reference point. <-- 0.381 --> ARP: Antenna Reference Point BPA: Bottom of Preamplifier L1 : L1 Phase Center L2 : L2 Phase Center TCR: Top of Chokering BCR: Bottom of Chokering