[http://igscb.jpl.nasa.gov/igscb/station/log/amc29909.log]
AMC2 Site Information Form
International GPS Service for Geodynamics
0. Form
Prepared by (full name) : Bill Bollwerk (USNO)
Date Prepared : 17-JUN-1999
Report Type : UPDATE
Prepared Using :
0.1 Form
Prepared by (full name) : Linda Nussear
Date Prepared : 02-SEP-1999
Report Type : UPDATE
Prepared Using :
1. Site Identification of the GPS 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
Date Installed : 15-OCT-1998
:eologic Characteristic : on roof of 5-story building
Bedrock Type :
Bedrock Condition :
Fracture Spacing :
Notes :
Additional Information : 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
X coordinate (m) : -1248596.241
Y coordinate (m) : -4819429.589
Z coordinate (m) : 3976506.987
Latitude (deg) : 38.803114 N
Longitude (deg) : 255.475405 E
Elevation (m) : 1911.087
Additional Information : (multiple lines)
: Schriever Air Force Base
3. GPS Receiver Information
3.1 Receiver Type : ROGUE SNR12
Serial Number : T247
Firmware Version : 3.2.32.4
Date Installed : 24-MAR-1998
Date Removed : 15-OCT-1998 22:01 UT
Additional Information :
3.2 Receiver Type : ROGUE SNR12
Serial Number : T245
Firmware Version : 3.2.32.4
Date Installed : 15-OCT-1998 22:01 UT
Date Removed : 08-MAR-1999 18:54 UT
Additional Information :
3.3 Receiver Type : AOA SNR-12 ACT
Serial Number : 247-U
Firmware Version : 3.3.32.2
Date Installed : 09-MAR-1999 00:00 UT
Date Removed : 10-MAY-1999 17:48 UT
Additional Information :
3.4 Receiver Type : AOA SNR-12 ACT
Serial Number : 245-U
Firmware Version : 3.3.32.2
Date Installed : 11-MAY-1999 00:00 UT
Date Removed : 01-SEP-1999 15:09 UT
Additional Information :
3.5 Receiver Type : AOA SNR-12 ACT
Serial Number : 247-U
Firmware Version : 3.3.32.3
Date Installed : 01-SEP-1999 15:43 UT
Date Removed : (dd-MMM-yyyy hh:mm UT)
Additional Information : (multiple lines)
4. GPS Antenna Information
4.1 Antenna Type : AOAD/M_T
Serial Number : 308
Antenna Height (m) : 0.0
Antenna Reference Point : ARP
Degree Offset from North : oriented North but not measured
Antenna Radome Type : none
Date Installed : 24-MAR-1998
Date Removed : (dd-MMM-yyyy hh:mm UT)
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
: following results:
: 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.
Additional Information : Antenna cable 25-AUG-1999 to present:
: 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
: specifications:
: 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
: Electrical Length Change versus Temperature:
: 400 PPM over (-40 to 30 C) or 5.7 PPM/C
: => 0.02 ps/m/C
4.x Antenna Type :
Serial Number :
Antenna Height (m) : (m)
Antenna Reference Point : (ARP/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
5.1 Monument Name : none
Site Ref CDP Number : none
Site Ref Domes Number : none
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 : (multiple lines)
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 : (multiple lines)
6. Frequency Standard
6.1 Standard Type : steered H-MASER
Frequency : 5 MHz
Effective Dates : 24-MAR-1998
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 : (H-MASER/CESIUM/QUARTZ/INTERNAL/RUBIDIUM)
Frequency :
Effective Dates : (dd-MMM-yyyy - dd-MMM-yyyy)
Notes : (multiple lines)
7. Collocation Information
7.1 Instrumentation Type : none
Status :
Effective Dates :
Notes :
7.x Instrumentation Type : (DORIS/GLONASS/PRARE/SLR/VLBI)
Status : (PERMANENT/MOBILE)
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) :
Effective Dates : (dd-MMM-yyyy - dd-MMM-yyyy)
Notes : (multiple lines)
8.2 Pressure Sensor Model :
Manufacturer :
Data Frequency :
Accuracy (mbar) :
Height Diff to GPS (m) :
Effective Dates : (dd-MMM-yyyy - dd-MMM-yyyy)
Notes : (multiple lines)
8.3 Temperature Sensor Model :
Manufacturer :
Data Frequency :
Accuracy (deg C) :
Effective Dates : (dd-MMM-yyyy - dd-MMM-yyyy)
Notes : (multiple lines)
8.4 Water Vapor Radiometer : none
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 : The USNO Alternate Master Clock is located in
: the same building as this GPS receiver. The
: differential time offset between the Alternate
: Master Clock and the GPS antenna will be
: monitored and may be used to calibrate the
: receiver clock time directly to UTC(AMC).
9. On-Site, Point of Contact Agency Information
Agency : U.S. Naval Observatory, Alternate Master Clock
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 : Paul Wheeler (USNO)
Telephone (primary) : 202-762-1581
Telephone (secondary) :
Fax :
E-mail : paul@tsee2.usno.navy.mil
Additional Information : Regional Data Center is NOAA GODC
Regional Data Center Contact
Contact Name : Linda Nussear (NOAA)
Telephone (primary) : 301-713-2845
Telephone (secondary) :
Fax : 301-713-4475
E-mail : linda@gracie.grdl.noaa.gov
10. Responsible Agency (if different from 9.)
Agency : (same as above in 9.)
Mailing Address : (multiple lines)
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)
11. More Information
URL for More Information :
Hardcopy on File
Site Map : N
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