[IGSSTATION-2479]: OPMT: Nominal data on line again.
Pierre Uhrich
Pierre.Uhrich at obspm.fr
Thu Sep 4 06:31:05 PDT 2008
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IGS Station Mail 04 Sep 06:31:12 PDT 2008 Message Number 2479
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Author: Pierre Uhrich (LNE-SYRTE, Observatoire de Paris)
Dear Colleagues,
This message is an update on the problems having affected OPMT station
after the unexpected cut of electrical power in Observatoire de Paris
which took place on August 28 at 10:22 UTC (DOY 241, MJD 54706).
We consider that OPMT data are nominal again since Tuesday September 2
after 13:00 UTC (DOY 246, MJD 54711).
We have not interrupted the data collection during the period from DOY
241 to 246, but we advise potential users that those data are corrupted,
and do include phase and frequency steps or other abnormal behavior
affecting the external clock which will not be documented further.
Therefore, even if the H-Maser used as external clock remains the same,
it should be considered as a new clock since DOY 246. You will find here
joined a new site log for OPMT station, which shows in section 6 the
lack of external clock during a few days.
We hope that no further update for this incident will be needed.
Best regards.
P. Uhrich
--
===============================================================
Dr Pierre Uhrich Pierre.Uhrich at obspm.fr
Inginieur-chercheur LNE
Equipe Mitrologie du temps
LNE-SYRTE, Phone: + 33 (0)1 40 51 22 17
UMR CNRS 8630, Fax: + 33 (0)1 43 25 55 42
Observatoire de Paris,
61 avenue de l'Observatoire, F-75014 Paris, France.
===============================================================
OPMT Site Information Form (site log)
International GNSS Service
0. Form
Prepared by (full name) : Dr Pierre Uhrich
Date Prepared : 2008-09-04
Report Type : UPDATE
If Update:
Previous Site Log : OPMT_20080526.log
Modified/Added Sections : 6
1. Site Identification of the GNSS Monument
Site Name : Observatoire de Paris
Four Character ID : OPMT
Monument Inscription : None
IERS DOMES Number : 10001S006
CDP Number : (A4)
Monument Description : Concrete balk and pillar
Height of the Monument : 2.30
Monument Foundation : ROOF
Foundation Depth : 14.73
Marker Description : (CHISELLED CROSS/DIVOT/BRASS NAIL/etc)
Date Installed : 2001-07-01T00:00Z
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)
2. Site Location Information
City or Town : Paris
State or Province : Ile-de-France
Country : France
Tectonic Plate : Eurasian
Approximate Position (ITRF)
X coordinate (m) : 4202777.3831
Y coordinate (m) : 171367.9881
Z coordinate (m) : 4778660.1844
Latitude (N is +) : +485009.17
Longitude (E is +) : +0022005.58
Elevation (m,ellips.) : 124.2
Additional Information : Antenna phase coordinates as computed in July
: 2004 from the IGS daily determination with the
: help of Jim Ray
3. GNSS Receiver Information
3.1 Receiver Type : ASHTECH Z-XII3T
Satellite System : GPS
Serial Number : 02942
Firmware Version : 1L01-1D04
Elevation Cutoff Setting : 5
Date Installed : 2001-07-01T00:00Z
Date Removed : CCYY-MM-DDThh:mmZ
Temperature Stabiliz. : Between 19.5 0C and 23.5 0C
Additional Information : ASHTECH Z-XII3 Time Transfer P/N 700845-1(E)
3.x Receiver Type : (A20, from rcvr_ant.tab; see instructions)
Satellite System : (GPS/GLONASS/GPS+GLONASS)
Serial Number : (A20, but note the first A5 is used in SINEX)
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 : 3S-02-TSADM NONE
Serial Number : 00019
Antenna Reference Point : TOP
Marker->ARP Up Ecc. (m) : 000.0000
Marker->ARP North Ecc(m) : 000.0000
Marker->ARP East Ecc(m) : 000.0000
Alignment from True N : Not required
Antenna Radome Type : NONE
Radome Serial Number :
Antenna Cable Type : Andrew HELIAX LDF2RN-50
Antenna Cable Length : 30
Date Installed : 2001-07-01T00:00Z
Date Removed : CCYY-MM-DDThh:mmZ
Additional Information : The antenna is temperature stabilized
4.x Antenna Type : (A20 from rcvr_ant.tab; see instructions)
Serial Number : (A20, 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) : (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 : EXTERNAL H-MASER
Input Frequency : 20 MHz
Effective Dates : 2001-07-01/2002-10-11
Notes : Sigma Tau active H-MASER 205
: The required 1 pps signal is coming
: from the same standard through a
: cable labelled '403' from the output
: 'B' of a distribution amplifier TST
: 6460 labelled 'Maser 0205'.
6.2 Standard Type : EXTERNAL CESIUM
Input Frequency : 20 MHz
Effective Dates : 2002-10-11/2002-10-31
Notes : UTC(OP) issued from an HP 5071A Cesium clock
6.3 Standard Type : EXTERNAL H-MASER
Input Frequency : 20 MHz
Effective Dates : 2002-10-31/2003-04-30
Notes : Sigma Tau active H-MASER 016
: The required 1 pps signal is coming
: from the same standard through a
: cable labelled '403' from the front output
: of a distribution amplifier TST
: 6460 labelled 'Maser 0016'.
6.4 Standard Type : EXTERNAL H-MASER
Input Frequency : 20 MHz
Effective Dates : 2003-04-30/2004-10-20
Notes : Sigma Tau active H-MASER 205
: The required 1 pps signal is coming
: from the same standard through a
: cable labelled '403' from the output 'B'
: of a distribution amplifier TST
: 6460 labelled 'Maser 0205'.
6.5 Standard Type : EXTERNAL H-MASER
Input Frequency : 20 MHz
Effective Dates : 2004-10-20/2004-11-25
Notes : Sigma Tau active H-MASER 016
: The required 1 pps signal is coming
: from the same standard through a
: cable labelled '403' from the front output
: of a distribution amplifier TST
: 6460 labelled 'Maser 0016'.
6.6 Standard Type : EXTERNAL H-MASER
Input Frequency : 20 MHz
Effective Dates : 2004-11-25/2007-04-23
Notes : Sigma Tau active H-MASER 205
: The required 1 pps signal is coming
: from the same standard through a
: cable labelled '403' from the output 'B'
: of a distribution amplifier TST
: 6460 labelled 'Maser 0205'.
6.7 Standard Type : EXTERNAL H-MASER
Input Frequency : 20 MHz
Effective Dates : 2007-04-24/2008-03-11
Notes : Kvarz active H-MASER 890
: The required 1 pps signal is coming
: from the standard through a
: cable labelled '403' from the output '1'
: of a TimeTech Pulse Distribution Unit
: feeded by the signal from a Quartzlock
: A6 Frequency Convertor labelled
: 'Maser 1400890'.
6.8 Standard Type : EXTERNAL H-MASER
Input Frequency : 20 MHz
Effective Dates : 2008-03-11/2008-05-15
Notes : Sigma Tau active H-MASER 016
: The required 1 pps signal is coming
: from the standard through a
: cable labelled '403' from the output
: of a PTF 1204 Pulse Distribution Unit
: labelled 'Maser 1400816'
: feeded by a 1 pps coming from
: a distribution amplifier TST
: 6460 labelled 'Maser 016'.
6.7 Standard Type : EXTERNAL H-MASER
Input Frequency : 20 MHz
Effective Dates : 2008-05-15/2008-08-28
Notes : Kvarz active H-MASER 890
: The required 1 pps signal is coming
: from the standard through a
: cable labelled '403' from the output '2'
: of a PTF 1204 Pulse Distribution Unit
: labelled 'Maser 1400890'
: feeded by the 1 pps from a Quartzlock
: A6 Frequency Convertor labelled
: 'Maser 1400890'.
: Interruption of external clock signal
: on 2008-08-28 at 10:22 UTC
: due to failure of power supply.
6.8 Standard Type : EXTERNAL H-MASER
Input Frequency : 20 MHz
Effective Dates : 2008-09-02/CCYY-MM-DD
Notes : Kvarz active H-MASER 890
: To be considered as a "new" clock
: with respect to before power failure,
: put into operation after 13:00 UTC.
: The required 1 pps signal is coming
: from the standard through a
: cable labelled '403' from the output '2'
: of a PTF 1204 Pulse Distribution Unit
: labelled 'Maser 1400890'
: feeded by the 1 pps from a Quartzlock
: A6 Frequency Convertor labelled
: 'Maser 1400890'.
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 : GPS TIME
Status : PERMANENT
Effective Dates : 2001-07-01/CCYY-MM-DD
Notes : NBS TTR5 and AOA TTR6
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 :
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)
8.1.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 :
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)
8.2.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 :
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)
8.3.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)
8.4.1 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)
8.4.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 : (multiple lines)
8.5.x Other Instrumentation : (multiple lines)
9. Local Ongoing Conditions Possibly Affecting Computed Position
9.1.1 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)
9.1.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)
9.2.1 Multipath Sources : (METAL ROOF/DOME/VLBI ANTENNA/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)
9.3.1 Signal Obstructions : BUILDINGS
Effective Dates : 2001-07-01/CCYY-MM-DD
Additional Information : The horizon profile is clear above an elevation
: of 10 0 except between the azimuth 240 0 E and
: 330 0 E where the buildings' mask can reach an
: elevation of 45 0 with an average walue of 23 0
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
10.1 Date : (CCYY-MM-DDThh:mmZ)
Event : (TREE CLEARING/CONSTRUCTION/etc)
10.x Date : (CCYY-MM-DDThh:mmZ)
Event : (TREE CLEARING/CONSTRUCTION/etc)
11. On-Site, Point of Contact Agency Information
Agency : LNE-SYRTE
: UMR 8630
: Observatoire de Paris
Preferred Abbreviation : OP
Mailing Address : LNE-SYRTE
: Observatoire de Paris
: 61 avenue de l'Observatoire
: F-75014 Paris
: France
Primary Contact
Contact Name : Pierre Uhrich
Telephone (primary) : +33 (0)1 40512217
Telephone (secondary) : +33 (0)1 40512216
Fax : +33 (0)1 43255542
E-mail : Pierre.Uhrich at obspm.fr
Secondary Contact
Contact Name : David Valat
Telephone (primary) : +33 (0)1 40512215
Telephone (secondary) : +33 (0)1 40512130
Fax : +33 (0)1 43255542
E-mail : David.Valat at obspm.fr
Additional Information : The name of the Agency was formerly BNM-LPTF
: then BNM-SYRTE.
12. Responsible Agency (if different from 11.)
Agency : (multiple lines)
Preferred Abbreviation : (A10)
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)
13. More Information
Primary Data Center :IGN
Secondary Data Center :BKG
URL for More Information :
Hardcopy on File
Site Map : (Y or URL)
Site Diagram : (Y or URL)
Horizon Mask : (Y or URL)
Monument Description : (Y or URL)
Site Pictures : (Y or URL)
Additional Information : (multiple lines)
Antenna Graphics with Dimensions
3S-02-TSADM
-----
/ + \ <-- 0.2916 L2
| + | <-- 0.2725 L1
+--------------------------------------------------+
| |
| |
| |
| |
+-+--------------------------------------------------+-+ <-- 0.208 TGP
+-------------------+-------------+--------------------+
+----------------------| |------------------------------
| =| | ------
| +------x------+ ------
| ------
| <-- 0.381 --> ------
| ------
| ------
| ------
| ------
| ------
| ------
| ------
| ------
| ------
| ------
| ------
+-------------------------------------------------------------------
| |
--------------x-------------- <-- ARP=TOP
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
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