AMC2 Site Information Form International GPS Service See Instructions at: ftp://igscb.jpl.nasa.gov/pub/station/general/sitelog_instr.txt 0. Form Prepared by (full name) : Jim Ray Date Prepared : 2002-03-13 Report Type : UPDATE -- met package installed If Update: Previous Site Log : amc20203.log Modified/Added Sections : (n.n,n.n,...) 1. Site Identification of the GNSS Monument Site Name : Alternate Master Clock (timing test) Four Character ID : AMC2 Monument Inscription : no monument, GPS antenna ARP IERS DOMES Number : 40472S004 CDP Number : none Monument Description : (PILLAR/BRASS PLATE/STEEL MAST/etc) Height of the Monument : (m) Monument Foundation : (STEEL RODS, CONCRETE BLOCK, ROOF, etc) Foundation Depth : (m) Marker Description : (CHISELLED CROSS/DIVOT/BRASS NAIL/etc) Date Installed : 1998-10-15 Geologic Characteristic : (BEDROCK/CLAY/CONGLOMERATE/GRAVEL/SAND/etc) Bedrock Type : (IGNEOUS/METAMORPHIC/SEDIMENTARY) Bedrock Condition : (FRESH/JOINTED/WEATHERED) Fracture Spacing : (1-10 cm/11-50 cm/51-200 cm/over 200 cm) Fault zones nearby : (YES/NO/Name of the zone) Distance/activity : (multiple lines) Additional Information : (multiple lines) : The antenna is mounted on top of the roof : (flat) of Building 400 (5 stories) at Schriever : Air Force Base, outside of Colorado Springs, : Colorado. There are no nearby geodetic markers : or control points. 2. Site Location Information City or Town : Colorado Springs State or Province : Colorado Country : U.S.A. Tectonic Plate : North American Approximate Position (ITRF) X coordinate (m) : -1248596.241 Y coordinate (m) : -4819429.589 Z coordinate (m) : 3976506.987 Latitude (N is +) : +384811.21 Longitude (E is +) : -1043128.54 Elevation (m,ellips.) : 1911.087 Additional Information : (multiple lines) : Schriever Air Force Base 3. GNSS Receiver Information 3.1 Receiver Type : ROGUE SNR-12 RM Satellite System : (GPS/GLONASS/GPS+GLONASS) Serial Number : T247 Firmware Version : 3.2.32.4 Elevation Cutoff Setting : (deg) Date Installed : 1998-03-24 Date Removed : 1998-10-15T22:01Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : 3.2 Receiver Type : ROGUE SNR-12 RM Satellite System : (GPS/GLONASS/GPS+GLONASS) Serial Number : T245 Firmware Version : 3.2.32.4 Elevation Cutoff Setting : (deg) Date Installed : 1998-10-15T22:01Z Date Removed : 1999-03-08T18:54Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : 3.3 Receiver Type : AOA SNR-12 ACT Satellite System : (GPS/GLONASS/GPS+GLONASS) Serial Number : 247-U Firmware Version : 3.3.32.2 Elevation Cutoff Setting : (deg) Date Installed : 1999-03-09T00:00Z Date Removed : 1999-05-10T17:48Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : 3.4 Receiver Type : AOA SNR-12 ACT Satellite System : (GPS/GLONASS/GPS+GLONASS) Serial Number : 245-U Firmware Version : 3.3.32.2 Elevation Cutoff Setting : (deg) Date Installed : 1999-05-11T00:00Z Date Removed : 1999-09-01T15:09Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : 3.5 Receiver Type : AOA SNR-12 ACT Satellite System : (GPS/GLONASS/GPS+GLONASS) Serial Number : 247-U Firmware Version : 3.3.32.3 Elevation Cutoff Setting : (deg) Date Installed : 1999-09-01T15:43Z Date Removed : 2000-07-10T20:39Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : 3.6 Receiver Type : AOA SNR-12 ACT Satellite System : (GPS/GLONASS/GPS+GLONASS) Serial Number : 247-U Firmware Version : 3.3.32.4 Elevation Cutoff Setting : (deg) Date Installed : 2000-07-10T20:50Z Date Removed : (CCYY-MM-DDThh:mmZ) Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : firmware update only; no other change 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 : AOAD/M_T Serial Number : 308 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.0 Marker->ARP North Ecc(m) : (F8.4) Marker->ARP East Ecc(m) : (F8.4) Alignment from True N : oriented North but not measured Antenna Radome Type : NONE Radome Serial Number : Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : 1998-03-24 Date Removed : (CCYY-MM-DDThh:mmZ) Additional Information : This antenna is located 28.5 inches nearly : directly north of the antenna for a TTR-4P : timing receiver. NIMA surveyed the TTR-4P : antenna location in August 1996 with the : : 38 Degrees 48.2 N ( 38.803107222 N) : 255 Degrees 28.5 W (255.475404583 E) : 1911.087 m Ellipsoid Height : with a stated accuracy of +/- 30 cm (1 sigma) : in each component. The TurboRogue antenna : is mounted on a tripod platform. : : Andrew FSJ1-50A (35422-33 phase stabilized) : 1/4 inch Superflexible Foam Dielectric : Heliax -- physical length 120 feet : (36.57 m), mostly run in ceiling and : floor of Bldg 400; measured electrical : length is 146.9 ns +/- 30 ps : : Velocity factor 0.84 : DC resistance 2 to 3 ohms per 1000 foot : Capacitance, 24.2 pF/foot : Inductance, .061 uH/foot : Loss at 1250 MHz 6.77 dB/100 foot : Loss at 1500 MHz 7.47 dB/100 foot : : 400 PPM over (-40 to 30 C) or 5.7 PPM/C : => 0.02 ps/m/C 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.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) : dy (m) : dz (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 : steered H-MASER Input Frequency : 5 MHz Effective Dates : 1998-03-24/CCYY-MM-DD Notes : reference signal from USNO Alternate Master : Clock #1, the back-up realization of UTC(USNO) : via two-way satellite time transfer; : calibration of clock offset to be established : later 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 7.1 Instrumentation Type : none Status : Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : 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 8.1.1 Humidity Sensor Model : HUMICA H-sensor (pn 16663) Manufacturer : Vaisala Serial Number : Data Sampling Interval : 15 seconds Accuracy (% rel h) : +/-1%(0...90%RH) Aspiration : (UNASPIRATED/NATURAL/FAN/etc) Height Diff to Ant : (m) Calibration date : (CCYY-MM-DD) Effective Dates : 2002-02-28/CCYY-MM-DD Notes : NOAA GSOS # 064 : Horizontal offset from GPS 527 m : Vertical offset from GPS ~29 m 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) 8.2.1 Pressure Sensor Model : PTB220 Manufacturer : Vaisala Serial Number : Data Sampling Interval : 15 seconds Accuracy : +/-0.1 Height Diff to Ant : ~29 m Calibration date : (CCYY-MM-DD) Effective Dates : 2002-02-28/CCYY-MM-DD Notes : NOAA GSOS # 064 : Horizontal offset from GPS ~527 m : Vertical offset from GPS ~29 m 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) 8.3.1 Temp. Sensor Model : PT100 RTD 1/s DIN 43760B Manufacturer : Vaisala Serial Number : Data Sampling Interval : 15 seconds Accuracy : +/-0.1 @ 20.0C Aspiration : (UNASPIRATED/NATURAL/FAN/etc) Height Diff to Ant : (m) Calibration date : (CCYY-MM-DD) Effective Dates : 2002-02-28/CCYY-MM-DD Notes : NOAA GSOS # 064 : Horizontal offset from GPS ~527 m : Vertical offset from GPS ~29 m 8.3.x Temp. Sensor Model : Manufacturer : Serial Number : Data Sampling Interval : (sec) Accuracy : (hPa) 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) 8.4.1 Water Vapor Radiometer : none 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) 8.4.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) 8.5.1 Other Instrumentation : The USNO Alternate Master Clock is located in 8.5.x Other Instrumentation : 9. Local Ongoing Conditions Possibly Affecting Computed Position 9.1.x Radio Interferences : (TV/CELL PHONE ANTENNA/RADAR/etc) Observed Degredations : (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/BUILDLINGS/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 : U.S. Naval Observatory, Alternate Master Clock Preferred Abbreviation : (A10) Mailing Address : USNO/AMC : 400 O'Malley Ave, Suite 44 : Schriever AFB, CO 80912-4044 Primary Contact Contact Name : Bill Bollwerk Telephone (primary) : 719-567-6740 Telephone (secondary) : 719-567-6763 Fax : E-mail : bill@tycho.usnogps.navy.mil Secondary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Additional Information : Regional Data Center is NOAA GODC : : Linda Nussear (NOAA) : 301-713-2845 : : 301-713-4475 : linda@gracie.grdl.noaa.gov 12. Responsible Agency (if different from 11.) Agency : U.S. Naval Observatory, Alternate Master Clock Preferred Abbreviation : (A10) Mailing Address : TS Dept. : 3450 Massachusetts Ave., NW : Wasington, D.C. 20392-5420 Primary Contact Contact Name : Ed Powers (USNO) Telephone (primary) : 202-762-1451 Telephone (secondary) : Fax : 202-762-1511 E-mail : powers.edward@usno.navy.mil Secondary Contact Contact Name : Demetrios Matsakis (USNO) Telephone (primary) : 202-762-1587 Telephone (secondary) : Fax : E-mail : matsakis.demetrios@usno.navy.mil Additional Information : (multiple lines) 13. More Information URL for More Information : Hardcopy on File Site Map : (Y or URL) Site Diagram : N Horizon Mask : N Monument Description : no monument Site Pictures : N Additional Information : (multiple lines) Antenna Graphics with Dimensions TurboRogue: DORNE MARGOLIN T ----- / + \ <-- 0.128 L2 | + | <-- 0.110 L1 +--------------------------------------------------+ <-- 0.102 TCR | | | | | | | | +-+--------------------------------------------------+-+ <-- 0.038 +-------------------+-------------+--------------------+ <-- 0.035 BCR | | =| | +------x------+ <-- 0.000 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