Micro-g LaCoste g Processing Report
File Created: 03/30/23, 09:52:49

Project Name: SH02338.DDT_sl
g Acquisition Version: 0.066600
g Processing Version: 9.120423

Company/Institution: EOST
Operator: Bernard

Station Data
Name: Shom Brest
Site Code: 1
Lat:  48.40927 Long:   -4.50757 Elev:   47.70 m
Setup Height: 14.05 cm
Transfer Height: 130.50 cm
Actual Height: 130.50 cm
Gradient: -2.776 µGal/cm
Nominal Air Pressure: 1007.53 mBar
Barometric Admittance Factor:  0.30
Polar Motion Coord: -0.0085 " 0.1431 "
Earth Tide (ETGTAB) Selected
Potential Filename: C:\gData\gWavefiles\ETCPOT.dat
Delta Factor Filename: C:\gData\Brest\Brest_observe.dff.txt
Delta Factors
     Start   Stop     Amplitude    Phase Term
  0.000000  0.000001   1.00000    0.0000 DC     
  0.000147  0.501369   1.16000    0.0000 Long   
  0.501370  0.911390   1.189      0.0200 Q1     
  0.911391  0.947991   1.125     -0.2800 O1     
  0.947992  0.981854   1.231      1.9000 M1     
  0.981855  0.998631   1.132      1.0200 P1     
  0.998632  1.001369   1.653     -1.2400 S1     
  1.001370  1.004107   1.129      1.1300 K1     
  1.004108  1.006845   1.652     -15.800 PSI1   
  1.006846  1.023622   1.257     -8.5800 PHI1   
  1.023623  1.057485   1.213     -0.5600 J1     
  1.057486  1.470243   1.213     -2.2700 OO1    
  1.470244  1.880264   1.151      15.700 2N2    
  1.880265  1.914128   1.205      20.800 N2     
  1.914129  1.950419   1.314      15.210 M2     
  1.950420  1.984282   1.189      7.8300 L2     
  1.984283  2.002736   1.372      5.7300 S2     
  2.002737  2.451943   1.411      7.4400 K2     
  2.451944  3.381478   1.070     -6.5200 M3     

Instrument Data
Meter Type: FG5
Meter S/N: 206
Factory Height: 116.45 cm
Rubidium Frequency:  10000000.00000 Hz
Laser: L-Series (AL1 n°118)
Blue Lock: 632.99101620 nm
Red Lock: 632.99181660 nm

Processing Results
Date: 12/05/02
Time: 03:14:37
DOY: 339
Year: 2002
Time Offset (D h:m:s): 0 0:0:0
Gravity:   980929170.65 µGal
Set Scatter:  8.06 µGal 
Measurement Precision:  1.38 µGal
Total Uncertainty:  2.35 µGal
Red/Blue Separation:      0.49 µGal
Number of Sets Collected:   44
Number of Sets Processed:   34
Set #s Processed: 5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,29,30,31,32,33,34,35,36,37,38,41,42
Number of Sets NOT Processed:   10
Set #s NOT Processed: 1,2,3,4,27,28,39,40,43,44
Number of Drops/Set:   60
Total Drops Accepted:    1970
Total Drops Rejected:      70
Total Fringes Acquired:     700
Fringe Start:   30
Processed Fringes:    640
GuideCard Multiplex:    4
GuideCard Scale Factor:    250

Acquisition Settings
Set Interval: 30 min
Drop Interval: 10 sec
Number of Sets: 44
Number of Drops: 60

Gravity Corrections
Earth Tide (ETGTAB): 18.48 µGal
Polar Motion: -0.05 µGal
Barometric Pressure:  3.85 µGal
Transfer Height:  0.00 µGal
Reference Xo: -0.00 µGal

Uncertainties
Sigma Reject:  3.00
Earth Tide Factor: 0.005 
Average Earth Tide Uncertainty:  0.09 µGal
Ocean Load Factor:  0.20 
Average Ocean Load Uncertainty:  0.00 µGal
Barometric:  1.00 µGal
Polar Motion:  0.05 µGal
Laser:  0.05 µGal
Clock:  0.50 µGal
System Type:  1.10 µGal
Tidal Swell:  0.00 µGal
Water Table:  0.00 µGal
Unmodeled:  0.00 µGal
System Setup:  1.00 µGal
Gradient: 0.000 µGal (0.030 µGal/cm)


Comments

Mesures decembre 2002   Tres fort bruit (130 sd sur Scintrex) 
Longueur d'onde laser apres étalonnage 2002  Traitement le 8 octobre 2003  Martine et bernard   Pole:5/12/2002
 Sets 1+2, 3+4, 27+28, 39+40, 43+44 supprimés
Franges 30/640
