Subject: [IGSREPORT-6431] Wk 1025 NOAA NGS Analysis Report
From: NOAA/NGS GPS Analysis Center
Date: Fri, 10 Sep 1999 7:32:38 PDT

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IGS Electronic Report    Fri Sep 10  7:32:38 PDT 1999      Message Number 6431
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Author: NOAA/NGS GPS Analysis Center                                            
Subject: Wk 1025 NOAA NGS Analysis Report

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NGS ANALYSIS REPORT GPS WEEK 1025 (Dates: 99 Aug 29 - 99 Sep 04)                
******************************************************************************* 
National Oceanic and Atmospheric Administration (NOAA)                          
National Geodetic Survey (NGS), SSMC-3, N/NGS2                                  
1315 East-West Highway                                                          
Silver Spring, MD, USA  20910                                                   
                                                                                
contacts: William Kass    301-713-3209 ext.164   [email-masked]             
          Robert Dulaney  301-713-3209 ext.168   [email-masked]              
fax:                      301-713-4322                                          

PRODUCTS SENT TO CDDIS:                                                         
------------------------------------------------------------------------------  
 NGS10257.SUM         this text file                                            
 NGS10257.ERP         Earth rotation parameters for GPS Week 1025               
 NGS10257.SNX         weekly GPS coordinate solutions for GPS Wk 1025           
 NGS1025n.SP3         GPS ephemerides for GPS Week 1025, SP3 format (n=0..6)    
------------------------------------------------------------------------------  
                                                                                
SOLUTION CHARACTERISTICS:                                                       
------------------------------------------------------------------------------  
 Software             page5 developed at NOAA                                   
 Terr. Ref. Frame     nominally, ITRF96 at current epoch                        
 Observables          double-differenced carrier phase at 30-sec. intervals     
 Arc Length           24 hours                                                  
 Elevation Cutoff     15 degrees                                                
 Reference            file://igscb.jpl.nasa.gov/igscb/center/analysis/noaa.acn  
------------------------------------------------------------------------------  
                                                                                
STATISTICAL SUMMARY OF DAILY SOLUTIONS:                                         
------------------------------------------------------------------------        
          NUMBER      POST-FIT                                                  
 DOY   OBSERVATIONS   RMS (MM)   NO. SAT.   NO. SITES   NO. CONST. SITES        
------------------------------------------------------------------------        
 241     517392         11.0       27          50               30              
 242     491011         11.2       26          50               31              
 243     609024         11.1       26          59               37              
 244     622694         11.5       27          59               36              
 245     590896         11.7       27          54               36              
 246     661725         10.9       27          59               39              
 247     657904         11.4       27          60               37              
------------------------------------------------------------------------        
                                                                                
NUMBER OF OBSERVATIONS BY SATELLITE AND DOY:                                    
----------------------------------------------------------------------          
 PRN        241      242      243      244      245      246      247           
----------------------------------------------------------------------          
  01      19701    21234    24998    24093    24102    28153    26593           
  02      20343     -999     -999    23740    22455    26046    25676           
  03      18059    16881    21506    20991    18052    22672    21535           
  04      22007    19600    29551E   28277E   26797E   28907E   29351E          
  05      19109    20679    23415    21003    18538    22365    21268           
  06      17112    16301    22117    22235    19729    22229    22397           
  07      17838    16968    18860    20757    21078    20295    20605           
  08      20738    20320    25741    25339    22860    25511    26409           
  09      37418    17338    20532    48086    41646    46938    51118           
  10      40556    39690    51082    45624    39264    42018    43010           
  13      42612    38564    49812    46322    45606    51070    50246           
  14      45254    43318    48334    47266    48794    53582    45502           
  15      33896    30198    40452    42796    34162    44998E   52914E          
  16      37246    38946    47986    46992    40892    46602    52764           
  17      38148    38696    47806    45994    47600    48122    48610           
  18      41450    41202    49270    46860    41840    50334    45966           
  19      20996    20968    30028    25606    32278    28776    26870           
  21      35660    38150    47262    45058    46204    52948    50876           
  22      35262    35914    43828    43070    44672    49620    47416           
  23      41354    43058    52782    52770    45404    51888    53534           
  24      39268    42176    45034    46422E   55834E   58982E   60142E          
  25      39818    39354    49836    47034    46620    50978    51454           
  26      36828    35886    46878    45120    41646    50968    48852           
  27      43758    39596    50074    53960    44220    50624    52836           
  29      40748    43524    49470    48518    48200    53086    49252           
  30      38482    38738    50120    50428    46112    52098    52980           
  31      36216    35402    44554    44592    43576    47462    43798           
----------------------------------------------------------------------          
NOTE: E = satellite eclipsing during day                                        
                                                                                
GLOBAL LIST OF SITES USED DURING WEEK:                                          
-----------------------------------------------------------------------------   
global: ALGO AREQ ASC1 AUCK BAHR BAKO BOGT BRMU CHAT COCO DGAR DRAO EISL FAIR   
global: FORT GODE GOLD GOUG GRAZ HARK HOB2 IISC IRKT KELY KERG KOKB KOSG KOUR   
global: KWJ1 MAC1 MAG0 MALI MASP MATE MDO1 METS MKEA NLIB NOUM NYAL ONSA PERT   
global: PETP PIE1 POL2 POTS REYK RIOG SANT SEY1 STJO SUTH THU1 TIDB TIXI TROM   
global: TSKB VILL WES2 WHIT WTZR WUHN YAKZ YAR1 YELL                            
-----------------------------------------------------------------------------   
                                                                                
NUMBER OF OBSERVATIONS BY SITE AND DOY (AVERAGE PER BASELINE):                  
----------------------------------------------------------------------------    
       ION CODE$                                                                
 SITE   0123456    241      242      243      244      245      246      247    
----------------------------------------------------------------------------    
 ALGO*  2232212  13651    12621    11718    13286    13487    13672    13554    
 AREQ*  2323323   5959     5317     5499     4739     6521     7418     8229    
 ASC1   4444444   6721     5710     8687     9284     7457     8590     8762    
 AUCK*  2222222  12815    11850    11818    12707    10504    12826    12655    
 BAHR*    44444                     6581     6884     8545     7646     6969    
 BAKO   3333333  10871    10826     9965    10639     9682    11069    11369    
 BOGT   3444433   6622     5031     3640     5192     6360     5493     6171    
 BRMU*    2222                      7984     8207    10592    13545             
 CHAT*  2 22221  13134             12181    12926    12574    13059    12931    
 COCO   33 3 33   9206     9169              8656              8913     8608    
 DGAR   2222222   4318     3876     4445     2984              2263     4459    
 DRAO*  2222222  13238    12481    12606    13218    13199    13339    13486    
 EISL   2222222   5214     4889     4995     5315     5758     6044     6711    
 FAIR*  3334232  12487    11878    12640    12751    13365    13665    13511    
 FORT*  32  223   5591     4532                       6538     6805     6350    
 GODE   233222   14633    12371    12938    14636    13049    14223             
 GOLD*  2222222  11233    10481    10741    11376    11351    11517    12022    
 GOUG        22                                                9560     9473    
 GRAZ*  2222222  13870    13145    13463    13540    14071    13880    13907    
 HARK*  2222222   7959     8094     9324     9615    10503     9609     9577    
 HOB2*  2222 22  12666    11510    11847    12430             10277    12308    
 IISC   2232223   3621              4658     5107                       5391    
 IRKT*  2222222   9931    11510    11239    11485    11895    11856    11688    
 KELY     454 4                     9811     9646    11187             10355    
 KERG*  2233222   7448     7070     7244     8842     8639     8905     7398    
 KOKB*  4444444  10543    11554    10658    10262    12777    11593    11642    
 KOSG*  2222222  14894    11446    13792    14217    14111    14021    14177    
 KOUR*    22222                     3074     4211     5192     4974     4560    
 KWJ1*  4453433   3919     3885                                                 
 MAC1*  3556233  11399     9974    10732    11035     3907     6464    10812    
 MAG0   2222221  10910    10271    10745    11330    11712    11694    11696    
 MALI*    33333                     6167     5241     8234     4860     5928    
 MASP*   533433            8218    10766    11330    12908    11061    11222    
 MATE*  3322222  13359    12771    13103    13265    12074    11975    13613    
 MDO1*  2222222  11600     8923    10979    12100    12781    12276    12538    
 METS     22222                    12467    13264    12925    13361    13097    
 MKEA   3333333   9502     9846     9331     9090    11010    10136    10346    
 NLIB*  2233222  12139    10952    10019    10995    12054    11964    12195    
 NOUM   4333332   9471     8967    11198    12146     7648    12293    12160    
 NYAL*       54                                               15554    15746    
 ONSA*  2222222  14144    13575    13648    14019    13663    14055    13947    
 PERT*    22222                    10698    11136     9575    11283    11413    
 PETP   2222222  10857    10239    11179    11822    11989    11975    11645    
 PIE1*  2222222  11943    11468    11691    12852    12322    12727    13250    
 POL2     23  2                    10154    10659                      11259    
 POTS*  222 22   14834    14333    14281             14833    15021             
 REYK   2233222  12247    10813    10283    11518    11432    12128    11922    
 RIOG     22                        8254     8587                               
 SANT*  2222222   5915     4889     6566     6951     6135     7160     7605    
 SEY1   23   33   5678     4985                                         4373    
 STJO   2222112  12592    12498    12232    13093    13032    13112    12962    
 SUTH   2222222   9020    11656    11889    12143    12696    12446    12547    
 THU1*  4455444  12607    11746    10950    10929    11774    12968    12520    
 TIDB*  2222222  12178    11339    11260    12065     8675    12252    11441    
 TIXI   3344232  12216    11672    11486    11896    12208    13130    13043    
 TROM*  3344333  13027    12031    12054    12559    12388    14622    14567    
 TSKB*    22222                    10490    10960    11630    11594    11181    
 VILL*    22222                    12913    13381    13056    12860    13109    
 WES2*  2222212  11145    13233    12844    13312    13545    13762    13793    
 WHIT   2323222  13688    13072    12830    12697    13501    13233    13335    
 WTZR*   222222           13852    14010    14147    14558    14554    14347    
 WUHN   3233333  11683    11240    10488    10372    11563    11329    10742    
 YAKZ   2222121  12550    11993    12053    12460    11791    11783    12430    
 YAR1*  2222 22   9882     9572    11856    11118             11449    11538    
 YELL*  3455443  13404    12643    12266    12521    12990    13023    13022    
----------------------------------------------------------------------------    
NOTES: * Indicates sites with constrained coordinates.                          
       $ Ion codes given for each day with data. Values are an index of         
         (nominally) mean ionospheric variability with lower values denoting    
         less variation. > signifies values exceeding 9.499. Some types of      
         instrumental problems cause increases in this index unrelated to       
         ionospheric effects.                                                   
                                                                                
STATION GEODETIC STATISTICS FOR WEEK:                                           
--------------------------------------------------------------------------------
        AVERAGE          AVERAGE GEOCENTRIC COORDINATES        RMS RESIDUAL (MM)
 SITE    EPOCH         X (M)          Y (M)          Z (M)        N     E     U 
--------------------------------------------------------------------------------
 ALGO*  51422.5     918129.4636  -4346071.2487   4561977.8146     1     1     1 
 AREQ*  51422.5    1942826.7678  -5804070.2597  -1796893.9617     1     1     0 
 ASC1   51422.5    6118526.0853  -1572344.7020   -876451.1662     3     7    16 
 AUCK*  51422.5   -5105681.0688    461564.0462  -3782181.6991     2     3     5 
 BAHR*  51423.5    3633908.9813   4425275.5064   2799861.3231     3     3     3 
 BAKO   51422.5   -1836969.0036   6065617.1162   -716257.8164     4     9    19 
 BOGT   51422.5    1744399.0960  -6116037.7306    512731.6271     4    17    19 
 BRMU*  51423.0    2304703.5612  -4874817.1824   3395186.8959     1     1     0 
 CHAT*  51422.8   -4590670.9810   -275482.8869  -4404596.7455     2     3     4 
 COCO   51422.5    -741950.1211   6190961.6395  -1337768.4787     3     2     9 
 DGAR   51422.3    1916269.6439   6029977.3607   -801720.1129     6    16    40 
 DRAO*  51422.5   -2059164.7246  -3621108.4017   4814432.3482     1     1     1 
 EISL   51422.5   -1884951.5782  -5357595.8897  -2892890.5312    14    19    29 
 FAIR*  51422.5   -2281621.4917  -1453595.8020   5756961.8824     1     1     1 
 FORT*  51422.7    4985386.6390  -3954998.5960   -428426.4755     1     0     0 
 GODE   51422.0    1130773.8317  -4831253.5785   3994200.3986     3     2     9 
 GOLD*  51422.5   -2353614.2184  -4641385.3797   3676976.4230     1     1     0 
 GOUG   51425.0    4795578.5916   -835299.4820  -4107634.0433     1     5     9 
 GRAZ*  51422.5    4194423.9274   1162702.6041   4647245.3389     2     0     1 
 HARK*  51422.5    5084625.3163   2670366.2931  -2768494.5286     2     2     1 
 HOB2*  51422.3   -3950071.4653   2522415.2130  -4311638.2837     2     1     1 
 IISC   51422.2    1337936.7178   6070317.1071   1427876.5868     3    16    15 
 IRKT*  51422.5    -968332.2567   3794425.4225   5018167.7318     3     2     1 
 KELY   51423.2    1575559.2394  -1941827.9386   5848076.4984     4     1     9 
 KERG*  51422.5    1406337.3267   3918161.1229  -4816167.4022     3     3     3 
 KOKB*  51422.5   -5543838.1447  -2054587.0928   2387809.7674     1     1     0 
 KOSG*  51422.5    3899225.2231    396731.8580   5015078.3654     1     1     0 
 KOUR*  51423.5    3839591.4268  -5059567.5580    579956.9432     1     1     0 
 KWJ1*  51420.0   -6160880.9507   1339883.1373    960810.5060     3     1     2 
 MAC1*  51422.5   -3464038.5546   1334172.8148  -5169224.3100     2     1     1 
 MAG0   51422.5   -2825810.2127   1581232.9272   5477005.4979     2     6     6 
 MALI*  51423.5    4865366.4403   4110737.4833   -331121.6874     1     3     5 
 MASP*  51423.0    5439192.2587  -1522055.5830   2953454.7413     3     1     3 
 MATE*  51422.5    4641949.6730   1393045.3314   4133287.3638     2     1     0 
 MDO1*  51422.5   -1329998.7070  -5328393.3937   3236504.1666     1     1     1 
 METS   51423.5    2892570.8896   1311843.3771   5512634.0721     2     3     5 
 MKEA   51422.5   -5464105.1328  -2495166.7276   2148291.0012     3     6    11 
 NLIB*  51422.5    -130934.5147  -4762291.7345   4226854.6409     1     1     1 
 NOUM   51422.5   -5739971.5931   1387563.6272  -2402123.4645     3     4    11 
 NYAL*  51425.0    1202430.6090    252626.6717   6237767.5294     0     1     0 
 ONSA*  51422.5    3370658.6392    711877.0680   5349786.8897     1     1     0 
 PERT*  51423.5   -2368687.0956   4881316.5559  -3341796.0623     2     1     2 
 PETP   51422.5   -3576239.7819   1401003.4657   5075177.4780     3     3     8 
 PIE1*  51422.5   -1640916.8276  -5014781.2126   3575447.1056     1     1     1 
 POL2   51423.2    1239971.5232   4530790.0875   4302578.7717     0     4     2 
 POTS*  51421.9    3800689.7398    882077.3082   5028791.2566     1     0     1 
 REYK   51422.5    2587384.4404  -1043033.5042   5716563.9701     2     2     8 
 RIOG   51422.0    1429907.7556  -3495354.7652  -5122698.7037     3     7    28 
 SANT*  51422.5    1769693.4032  -5044574.1657  -3468321.0531     1     1     1 
 SEY1   51421.8    3602870.7115   5238174.4001   -516275.4992     3    12     3 
 STJO   51422.5    2612631.1885  -3426807.0288   4686757.8052     3     3     9 
 SUTH   51422.5    5041274.8382   1916054.0543  -3397076.0638     2     4     5 
 THU1*  51422.5     538981.3703  -1388714.8036   6181005.1279     2     1     1 
 TIDB*  51422.5   -4460996.2260   2682557.0843  -3674443.6025     2     1     1 
 TIXI   51422.5   -1264873.0908   1569455.8003   6031003.4478     3     3    15 
 TROM*  51422.5    2102940.2988    721569.4039   5958192.1192     4     2     1 
 TSKB*  51423.5   -3957199.2416   3310199.6862   3737711.6627     2     2     1 
 VILL*  51423.5    4849833.7757   -335049.1316   4116014.8547     1     1     0 
 WES2*  51422.5    1492233.3430  -4458089.4893   4296045.9956     1     0     1 
 WHIT   51422.5   -2218337.8646  -2201205.1130   5543057.5600     1     2     7 
 WTZR*  51423.0    4075580.6542    931853.7118   4801568.0620     1     1     1 
 WUHN   51422.5   -2267749.2340   5009154.2963   3221290.6976     6     5    13 
 YAKZ   51422.5   -1915023.3027   2308213.2275   5610224.9692     3     4     8 
 YAR1*  51422.3   -2389025.6582   5043316.9047  -3078530.6299     2     1     1 
 YELL*  51422.5   -1224452.5519  -2689216.1188   5633638.2646     1     1     1 
--------------------------------------------------------------------------------
NOTES: * Indicates sites with constrained coordinates.                          
                                                                                
WARNINGS:                                                                       
--------------------------------------------------------------------------------
 241: constrained site MASP not in data set                                     
    : constrained site WTZR not in data set                                     
    : constrained site BAHR not in data set                                     
    : constrained site BRMU not in data set                                     
    : constrained site KOUR not in data set                                     
    : constrained site MALI not in data set                                     
    : constrained site PERT not in data set                                     
    : constrained site TSKB not in data set                                     
    : constrained site VILL not in data set                                     
    : constrained site NYAL not in data set                                     
    : PRN 01    has < 2/3 as many obs as average                                
    : PRN 02    has < 2/3 as many obs as average                                
    : PRN 03    has < 2/3 as many obs as average                                
    : PRN 05    has < 2/3 as many obs as average                                
    : PRN 06    has < 2/3 as many obs as average                                
    : PRN 07    has < 2/3 as many obs as average                                
    : PRN 08    has < 2/3 as many obs as average                                
    : PRN 19    has < 2/3 as many obs as average                                
    : site DGAR has < 1/2 as many obs as average                                
    : site EISL has < 1/2 as many obs as average                                
    : site IISC has < 1/2 as many obs as average                                
    : site KWJ1 has < 1/2 as many obs as average                                
    : EISL residual dU > 2*RMS =      60 mm                                     
    : SANT residual dU > 2*RMS =       1 mm                                     
 242: constrained site CHAT not in data set                                     
    : constrained site BAHR not in data set                                     
    : constrained site BRMU not in data set                                     
    : constrained site KOUR not in data set                                     
    : constrained site MALI not in data set                                     
    : constrained site PERT not in data set                                     
    : constrained site TSKB not in data set                                     
    : constrained site VILL not in data set                                     
    : constrained site NYAL not in data set                                     
    : PRN 01    has < 2/3 as many obs as average                                
    : PRN 03    has < 2/3 as many obs as average                                
    : PRN 04    has < 2/3 as many obs as average                                
    : PRN 05    has < 2/3 as many obs as average                                
    : PRN 06    has < 2/3 as many obs as average                                
    : PRN 07    has < 2/3 as many obs as average                                
    : PRN 08    has < 2/3 as many obs as average                                
    : PRN 09    has < 2/3 as many obs as average                                
    : PRN 19    has < 2/3 as many obs as average                                
    : site BOGT has < 1/2 as many obs as average                                
    : site DGAR has < 1/2 as many obs as average                                
    : site EISL has < 1/2 as many obs as average                                
    : site FORT has < 1/2 as many obs as average                                
    : site KWJ1 has < 1/2 as many obs as average                                
    : site SANT has < 1/2 as many obs as average                                
    : site SEY1 has < 1/2 as many obs as average                                
    : PETP residual dE > 2*RMS =       6 mm                                     
 243: constrained site FORT not in data set                                     
    : constrained site KWJ1 not in data set                                     
    : constrained site NYAL not in data set                                     
    : PRN 01    has < 2/3 as many obs as average                                
    : PRN 03    has < 2/3 as many obs as average                                
    : PRN 05    has < 2/3 as many obs as average                                
    : PRN 06    has < 2/3 as many obs as average                                
    : PRN 07    has < 2/3 as many obs as average                                
    : PRN 08    has < 2/3 as many obs as average                                
    : PRN 09    has < 2/3 as many obs as average                                
    : site BOGT has < 1/2 as many obs as average                                
    : site DGAR has < 1/2 as many obs as average                                
    : site EISL has < 1/2 as many obs as average                                
    : site IISC has < 1/2 as many obs as average                                
    : site KOUR has < 1/2 as many obs as average                                
    : ASC1 residual dN > 2*RMS =       7 mm                                     
    : ASC1 residual dU > 2*RMS =      32 mm                                     
    : FAIR residual dN > 2*RMS =       3 mm                                     
    : MATE residual dE > 2*RMS =       2 mm                                     
 244: constrained site FORT not in data set                                     
    : constrained site KWJ1 not in data set                                     
    : constrained site POTS not in data set                                     
    : constrained site NYAL not in data set                                     
    : PRN 01    has < 2/3 as many obs as average                                
    : PRN 02    has < 2/3 as many obs as average                                
    : PRN 03    has < 2/3 as many obs as average                                
    : PRN 05    has < 2/3 as many obs as average                                
    : PRN 06    has < 2/3 as many obs as average                                
    : PRN 07    has < 2/3 as many obs as average                                
    : PRN 08    has < 2/3 as many obs as average                                
    : PRN 19    has < 2/3 as many obs as average                                
    : site AREQ has < 1/2 as many obs as average                                
    : site BOGT has < 1/2 as many obs as average                                
    : site DGAR has < 1/2 as many obs as average                                
    : site EISL has < 1/2 as many obs as average                                
    : site IISC has < 1/2 as many obs as average                                
    : site KOUR has < 1/2 as many obs as average                                
    : site MALI has < 1/2 as many obs as average                                
    : AREQ residual dN > 2*RMS =       2 mm                                     
    : GRAZ residual dN > 2*RMS =       4 mm                                     
    : HARK residual dU > 2*RMS =       2 mm                                     
    : KERG residual dN > 2*RMS =       6 mm                                     
    : MASP residual dU > 2*RMS =       6 mm                                     
 245: constrained site HOB2 not in data set                                     
    : constrained site KWJ1 not in data set                                     
    : constrained site YAR1 not in data set                                     
    : constrained site NYAL not in data set                                     
    : PRN 01    has < 2/3 as many obs as average                                
    : PRN 02    has < 2/3 as many obs as average                                
    : PRN 03    has < 2/3 as many obs as average                                
    : PRN 05    has < 2/3 as many obs as average                                
    : PRN 06    has < 2/3 as many obs as average                                
    : PRN 07    has < 2/3 as many obs as average                                
    : PRN 08    has < 2/3 as many obs as average                                
    : site KOUR has < 1/2 as many obs as average                                
    : site MAC1 has < 1/2 as many obs as average                                
    : GOLD residual dE > 2*RMS =       2 mm                                     
 246: constrained site KWJ1 not in data set                                     
    : PRN 02    has < 2/3 as many obs as average                                
    : PRN 03    has < 2/3 as many obs as average                                
    : PRN 05    has < 2/3 as many obs as average                                
    : PRN 06    has < 2/3 as many obs as average                                
    : PRN 07    has < 2/3 as many obs as average                                
    : PRN 08    has < 2/3 as many obs as average                                
    : site BOGT has < 1/2 as many obs as average                                
    : site DGAR has < 1/2 as many obs as average                                
    : site KOUR has < 1/2 as many obs as average                                
    : site MALI has < 1/2 as many obs as average                                
    : KOSG residual dE > 2*RMS =       2 mm                                     
    : TIDB residual dU > 2*RMS =       1 mm                                     
 247: constrained site KWJ1 not in data set                                     
    : constrained site POTS not in data set                                     
    : constrained site BRMU not in data set                                     
    : PRN 01    has < 2/3 as many obs as average                                
    : PRN 02    has < 2/3 as many obs as average                                
    : PRN 03    has < 2/3 as many obs as average                                
    : PRN 05    has < 2/3 as many obs as average                                
    : PRN 06    has < 2/3 as many obs as average                                
    : PRN 07    has < 2/3 as many obs as average                                
    : PRN 08    has < 2/3 as many obs as average                                
    : PRN 19    has < 2/3 as many obs as average                                
    : site DGAR has < 1/2 as many obs as average                                
    : site IISC has < 1/2 as many obs as average                                
    : site KOUR has < 1/2 as many obs as average                                
    : site SEY1 has < 1/2 as many obs as average                                
    : TROM residual dU > 2*RMS =       3 mm                                     
--------------------------------------------------------------------------------

[Mailed From: kass <[email-masked]>]