Subject: [IGSREPORT-6469] Wk 1027 NOAA NGS Analysis Report
From: NOAA/NGS GPS Analysis Center
Date: Fri, 24 Sep 1999 5:46:06 PDT

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IGS Electronic Report    Fri Sep 24  5:46:06 PDT 1999      Message Number 6469
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Author: NOAA/NGS GPS Analysis Center                                            
Subject: Wk 1027 NOAA NGS Analysis Report

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NGS ANALYSIS REPORT GPS WEEK 1027 (Dates: 99 Sep 12 - 99 Sep 18)                
******************************************************************************* 
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:                                                         
------------------------------------------------------------------------------  
 NGS10277.SUM         this text file                                            
 NGS10277.ERP         Earth rotation parameters for GPS Week 1027               
 NGS10277.SNX         weekly GPS coordinate solutions for GPS Wk 1027           
 NGS1027n.SP3         GPS ephemerides for GPS Week 1027, 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        
------------------------------------------------------------------------        
 255     701136         11.1       27          65               42              
 256     715423         11.5       27          66               44              
 257     715165         11.3       27          65               43              
 258     691377         11.3       27          64               44              
 259     676160         11.3       27          63               42              
 260     666160         11.2       27          63               41              
 261     671129         10.9       27          63               41              
------------------------------------------------------------------------        
                                                                                
NUMBER OF OBSERVATIONS BY SATELLITE AND DOY:                                    
----------------------------------------------------------------------          
 PRN        255      256      257      258      259      260      261           
----------------------------------------------------------------------          
  01      23522    25405    24197    25101    21424    21063    22546           
  02      22823    23149    22370    21934    20503    21252    20373           
  03      24710    25661    25693    23557    25654    23358    25178           
  04      30449E   30333E   30089E   30259E   29801E   30335E   28185E          
  05      16559    17349    16168    14655    15157    16537    16442           
  06      20680    21246    21452    21362    20409    21839    22830           
  07      21848    23083    23109    22834    22570    21902    22105           
  08      30903E   31018E   31094E   29068E   29691E   28956E   29714E          
  09      64946E   64448E   63788E   59020E   61098E   61440E   60212E          
  10      49134    50978    51364    48068    47132    46080    48014           
  13      47802    48154    49138    51178    51380    48356    47750           
  14      46570    50566    49294    45184    48220    45628    44066           
  15      60508E   60786E   59952E   62118E   59044E   52054E   52598E          
  16      53420    56266    57688    55194    53784    55330    55784           
  17      63916E   61180E   62452E   60722E   58164E   56220E   59086E          
  18      41048    46042    43692    40720    40706    42312    37532           
  19      61354E   62298E   63010E   60252E   57726E   57020E   60172E          
  21      48892    50010    48962    48490    42376    41560    43084           
  22      44588    42188    44078    43576    39544    36968    37088           
  23      50346    54958    54314    49154    50426    47340    50372           
  24      67016E   63504E   61862E   59500E   59130E   60390E   59652E          
  25      63464E   65738E   66426E   65380E   60984E   61830E   63302E          
  26      46944    45496    47332    45964    47634    45472    44886           
  27      60036E   63334E   63740E   60378E   62296E   58546E   57290E          
  29      51442    50724    52974    49794    48414    51304    51298           
  30      54224    55186    54302    53568    50476    53800    52784           
  31      43634    44502    47618    46954    43368    40186    42542           
----------------------------------------------------------------------          
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 GUAM HARK HOB2 IISC IRKT KELY KERG KIT3 KOKB   
global: KOSG KOUR KWJ1 LPGS MAC1 MAG0 MALI MASP MATE MCM4 MDO1 METS MKEA NLIB   
global: NOUM NYAL ONSA PERT PETP PIE1 POL2 POTS REYK RIOG SANT STJO SUTH THU1   
global: TIDB TIXI TROM TSKB VILL WES2 WHIT WTZR WUHN YAKZ YAR1 YELL ZWEN        
-----------------------------------------------------------------------------   
                                                                                
NUMBER OF OBSERVATIONS BY SITE AND DOY (AVERAGE PER BASELINE):                  
----------------------------------------------------------------------------    
       ION CODE$                                                                
 SITE   0123456    255      256      257      258      259      260      261    
----------------------------------------------------------------------------    
 ALGO*  2211222  13604    12068    11603    13716    11222    12271    12606    
 AREQ*  2223323   8361     7086     5471     6922     7064     5076     6137    
 ASC1   3333433   8225     7722     8211     7336     7463     6950     6237    
 AUCK*  1221212  10468    13030    12980    13052    13139    13128    12899    
 BAHR*  2333334   8809     8117     8550     7979     7901     8503     7980    
 BAKO   22 2333  11731    11718             11119     3055    10786    11979    
 BOGT   3333344   6845     4895     5871     5173     4935     5129     5221    
 BRMU*  2222222   9523    13158     8425     9498    12115     8303     7815    
 CHAT*  1211111  12995    12912    13018    13183    13052    10625    12849    
 COCO   2232233   9020     9463     7296     8803     9462     9917     9355    
 DGAR   2222 2    5450     3484     3300     3484              3216             
 DRAO*  2211111  13173    13079    13625    12846    13260    13467    13544    
 EISL   2232232   6846     5294     5507     6137     5890     5177     5573    
 FAIR*   433423           11732    13202    11561    11033    13435    12879    
 FORT*  2223333   6255     5443     6516     6488     5595     5373     6237    
 GODE   2121222  14072     9714     7752    14261             13747    13788    
 GOLD*  2111122  11477    11332    12309    12349    12027    11990    11916    
 GOUG       2                                         9730                      
 GRAZ*  2222222  14010    14186    14492    14033    12707    14423    14458    
 GUAM*  3222222   4528     5271     4613     5904     7387     6586     5805    
 HARK*  2222222   9001     9270    10467    10536    10315    10113     9963    
 HOB2*  2222212  12690    11664    12898    12762    12666     8373    11330    
 IISC   2222244   7038     6331     6311     6157     5896     5508     5860    
 IRKT*  2122212  12000    12027    12232    11782    12149    12401    10738    
 KELY   454   4   7248    10419    10227                               11111    
 KERG*  2222212   7668     8780     9035     9251     9209     8929     9118    
 KIT3*  2222222  12552    11002    12400    11860    11192    12675    12005    
 KOKB*  4434433  12385    11494    13575     7621    13614    14093    13141    
 KOSG*  2112222  12329    13882    13799    11692    13353    12777    13650    
 KOUR*  2222222   4964     4045     4005     5175     4091     3478     3104    
 KWJ1*  3333333   3955     4675              5215     6073     4972     4871    
 LPGS   233  33  10338     8785     8591                       7829     6430    
 MAC1*  5534524  10029    10342    10892     9991     9978     2996     9567    
 MAG0   2111111  11986    12151    11477    12183    12272    12187    12276    
 MALI*  3332222   7855     6544     6173     6009     7597     5401     6433    
 MASP*  3323443  10418    11109    12258    11987    10306    12124    11997    
 MATE*  222232   13877    13932    14507    13973    11618    12518             
 MCM4*  6545644   8589     9200     9730     8222     8399     8139     8693    
 MDO1*  2221122  12346    12704    13056    13036    12168    11604    12200    
 METS   2212221  13296    13351    13250    13400    13287    13345    13653    
 MKEA   3333333  10444     9866    11521     8585    11479    11767    10945    
 NLIB*  2111122  12112    12309    12418    12483     9354     9820    10811    
 NOUM   2322322   7258    12553    12788    12765    13043    12642    12855    
 NYAL*  5436643  15458    15696    15770    15335    15287    15998    15959    
 ONSA*  2212 21  14366    14365    13970    14440             14343    14550    
 PERT*  2222212   9723    10945    11308    11466    11566    10048    11613    
 PETP   2111111  12355    12112    10973    12580    12614    12428    12593    
 PIE1*  2111112  12775    12670    13662    13692    13354    13264    13433    
 POL2   2   2    13188                               11315                      
 POTS*   1122 2           15018    14333    11858    14203             12752    
 REYK   4322422  11275    10883    11617    12008    10992    12493    12806    
 RIOG   1211112  10704     9053     9402     9801     8868     8683     8377    
 SANT*  2222222   9327     7765     7715     7890     7432     7150     6858    
 STJO   2111222  12929    12493    12973    12688    11804    12355    12033    
 SUTH     22222                    13457    13267    13333    13746    13449    
 THU1*  5435644  10702    12282    12528    13288    13457    13586    12721    
 TIDB*  2222222  11754    12537    12174    12240    12433    12113    11968    
 TIXI   5533533  13394    13146    13552    12803    12403    13725    13664    
 TROM*  4443532  14460    14227    14049    14809    14052    14869    14960    
 TSKB*  2222112  10232    10447     9531    10371    11330    11121    10823    
 VILL*  2221 2    7786    13065    12251     5022              9386             
 WES2*  211122   13786    13311    13490    13605    12481    13467             
 WHIT   3322322  12070    11510    13022    11734    10849    13192    12440    
 WTZR*  2112222  14257    14652    14662    14226    14029    14385    14485    
 WUHN   2222323  11083    11498    11618    10820    11499    12144     7114    
 YAKZ   211 112  12183    12239    11957             12336    12229    12305    
 YAR1*  22222 2   9868    11678    11031    11548     9071             12039    
 YELL*  4534433  12049    12027    13031    11747    12329    13078    12899    
 ZWEN*  22122 2  12438    11946    12601    12339    12001             12457    
----------------------------------------------------------------------------    
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*  51436.5     918129.4627  -4346071.2488   4561977.8147     1     1     0 
 AREQ*  51436.5    1942826.7674  -5804070.2600  -1796893.9621     1     0     1 
 ASC1   51436.5    6118526.0731  -1572344.7069   -876451.1634     3    10    13 
 AUCK*  51436.5   -5105681.0742    461564.0444  -3782181.7014     2     4     3 
 BAHR*  51436.5    3633908.9777   4425275.5075   2799861.3261     2     2     2 
 BAKO   51436.7   -1836969.0093   6065617.0939   -716257.8078     4     5    24 
 BOGT   51436.5    1744399.0660  -6116037.7391    512731.6368     6    32    46 
 BRMU*  51436.5    2304703.5598  -4874817.1841   3395186.8963     1     1     0 
 CHAT*  51436.5   -4590670.9849   -275482.8860  -4404596.7465     2     2     2 
 COCO   51436.5    -741950.1248   6190961.6415  -1337768.4770     4    12    11 
 DGAR   51435.7    1916269.6504   6029977.3811   -801720.1046    11    20    37 
 DRAO*  51436.5   -2059164.7243  -3621108.4032   4814432.3484     1     2     1 
 EISL   51436.5   -1884951.5686  -5357595.9009  -2892890.5442     4     8    27 
 FAIR*  51437.0   -2281621.4926  -1453595.8029   5756961.8813     1     1     0 
 FORT*  51436.5    4985386.6384  -3954998.5968   -428426.4749     2     1     1 
 GODE   51436.3    1130773.8384  -4831253.5809   3994200.3982     3     3     6 
 GOLD*  51436.5   -2353614.2206  -4641385.3790   3676976.4220     1     1     1 
 GOUG   51437.5    4795578.5859   -835299.4601  -4107634.0458     0     0     0 
 GRAZ*  51436.5    4194423.9285   1162702.6059   4647245.3375     2     1     0 
 GUAM*  51436.5   -5071312.7932   3568363.5192   1488904.3017     2     2     1 
 HARK*  51436.5    5084625.3162   2670366.2965  -2768494.5264     2     2     1 
 HOB2*  51436.5   -3950071.4654   2522415.2157  -4311638.2815     1     1     1 
 IISC   51436.5    1337936.7080   6070317.1334   1427876.5978     3     9    17 
 IRKT*  51436.5    -968332.2565   3794425.4213   5018167.7320     1     2     2 
 KELY   51435.7    1575559.2376  -1941827.9330   5848076.4950     2     3     6 
 KERG*  51436.5    1406337.3283   3918161.1196  -4816167.3987     2     3     2 
 KIT3*  51436.5    1944945.2886   4556652.2309   4004325.9743     2     1     1 
 KOKB*  51436.5   -5543838.1447  -2054587.0893   2387809.7685     2     1     1 
 KOSG*  51436.5    3899225.2218    396731.8580   5015078.3656     2     2     1 
 KOUR*  51436.5    3839591.4275  -5059567.5571    579956.9434     1     1     1 
 KWJ1*  51436.7   -6160880.9557   1339883.1373    960810.5082     3     5     4 
 LPGS   51436.3    2780102.9859  -4437418.8928  -3629404.5989     2     4    12 
 MAC1*  51436.5   -3464038.5570   1334172.8177  -5169224.3082     2     2     1 
 MAG0   51436.5   -2825810.2076   1581232.9218   5477005.4883     2     1     7 
 MALI*  51436.5    4865366.4407   4110737.4857   -331121.6872     1     4     4 
 MASP*  51436.5    5439192.2565  -1522055.5821   2953454.7427     2     1     2 
 MATE*  51436.0    4641949.6733   1393045.3320   4133287.3637     1     1     0 
 MCM4*  51436.5   -1311703.2218    310815.0721  -6213255.1523     2     1     2 
 MDO1*  51436.5   -1329998.7072  -5328393.3935   3236504.1674     1     1     1 
 METS   51436.5    2892570.8881   1311843.3773   5512634.0692     1     2     4 
 MKEA   51436.5   -5464105.1310  -2495166.7205   2148291.0016     2     4     8 
 NLIB*  51436.5    -130934.5157  -4762291.7352   4226854.6409     1     1     1 
 NOUM   51436.5   -5739971.5917   1387563.6229  -2402123.4617     3     6     8 
 NYAL*  51436.5    1202430.6056    252626.6688   6237767.5310     1     2     2 
 ONSA*  51436.3    3370658.6381    711877.0679   5349786.8900     1     1     0 
 PERT*  51436.5   -2368687.0968   4881316.5551  -3341796.0597     2     1     1 
 PETP   51436.5   -3576239.7754   1401003.4624   5075177.4705     2     3     8 
 PIE1*  51436.5   -1640916.8276  -5014781.2116   3575447.1060     2     1     1 
 POL2   51435.5    1239971.5189   4530790.0872   4302578.7748     0     4     6 
 POTS*  51436.7    3800689.7391    882077.3091   5028791.2570     1     0     1 
 REYK   51436.5    2587384.4401  -1043033.5028   5716563.9689     2     5    13 
 RIOG   51436.5    1429907.7612  -3495354.7710  -5122698.6990     5    10    17 
 SANT*  51436.5    1769693.4048  -5044574.1659  -3468321.0517     2     1     1 
 STJO   51436.5    2612631.1885  -3426807.0327   4686757.8055     2     4    11 
 SUTH   51437.5    5041274.8338   1916054.0573  -3397076.0600     2     2     5 
 THU1*  51436.5     538981.3708  -1388714.8018   6181005.1261     1     1     1 
 TIDB*  51436.5   -4460996.2259   2682557.0835  -3674443.6014     2     1     1 
 TIXI   51436.5   -1264873.0839   1569455.7959   6031003.4289     1     2     3 
 TROM*  51436.5    2102940.3000    721569.4080   5958192.1145     1     1     1 
 TSKB*  51436.5   -3957199.2430   3310199.6881   3737711.6612     2     1     1 
 VILL*  51435.7    4849833.7757   -335049.1308   4116014.8546     1     1     1 
 WES2*  51436.0    1492233.3434  -4458089.4893   4296045.9957     2     0     0 
 WHIT   51436.5   -2218337.8631  -2201205.1112   5543057.5547     2     3     6 
 WTZR*  51436.5    4075580.6537    931853.7119   4801568.0621     1     1     0 
 WUHN   51436.5   -2267749.2402   5009154.3036   3221290.7063     2     4     7 
 YAKZ   51436.5   -1915023.2969   2308213.2231   5610224.9593     2     2     5 
 YAR1*  51436.2   -2389025.6607   5043316.9035  -3078530.6281     1     1     1 
 YELL*  51436.5   -1224452.5512  -2689216.1200   5633638.2626     1     1     1 
 ZWEN*  51436.2    2886325.4939   2155998.4426   5245816.1452     1     1     1 
--------------------------------------------------------------------------------
NOTES: * Indicates sites with constrained coordinates.                          
                                                                                
WARNINGS:                                                                       
--------------------------------------------------------------------------------
 255: constrained site FAIR not in data set                                     
    : constrained site POTS 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                                
    : site GUAM has < 1/2 as many obs as average                                
    : site KOUR has < 1/2 as many obs as average                                
    : site KWJ1 has < 1/2 as many obs as average                                
    : AREQ residual dN > 2*RMS =       3 mm                                     
    : KERG residual dU > 2*RMS =       4 mm                                     
    : KOUR residual dU > 2*RMS =       2 mm                                     
    : TSKB residual dE > 2*RMS =       3 mm                                     
 256: 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 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                                
    : 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 GUAM has < 1/2 as many obs as average                                
    : site KOUR has < 1/2 as many obs as average                                
    : site KWJ1 has < 1/2 as many obs as average                                
    : KERG residual dN > 2*RMS =       6 mm                                     
    : SANT residual dU > 2*RMS =       1 mm                                     
 257: constrained site KWJ1 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 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                                
    : site AREQ has < 1/2 as many obs as average                                
    : site DGAR has < 1/2 as many obs as average                                
    : site GUAM has < 1/2 as many obs as average                                
    : site KOUR has < 1/2 as many obs as average                                
    : BAHR residual dU > 2*RMS =       4 mm                                     
    : FORT residual dN > 2*RMS =       3 mm                                     
    : REYK residual dN > 2*RMS =       5 mm                                     
 258: 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 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 KWJ1 has < 1/2 as many obs as average                                
    : site VILL has < 1/2 as many obs as average                                
    : AUCK residual dU > 2*RMS =       5 mm                                     
    : BOGT residual dN > 2*RMS =      15 mm                                     
    : MATE residual dN > 2*RMS =       3 mm                                     
    : TIDB residual dU > 2*RMS =       2 mm                                     
    : TROM residual dE > 2*RMS =       3 mm                                     
 259: constrained site ONSA not in data set                                     
    : constrained site VILL 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                                
    : site BAKO has < 1/2 as many obs as average                                
    : site BOGT has < 1/2 as many obs as average                                
    : site KOUR has < 1/2 as many obs as average                                
    : ALGO residual dN > 2*RMS =       2 mm                                     
    : MDO1 residual dE > 2*RMS =       2 mm                                     
    : RIOG residual dN > 2*RMS =      10 mm                                     
 260: constrained site YAR1 not in data set                                     
    : constrained site ZWEN not in data set                                     
    : constrained site POTS 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                                
    : 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 KOUR has < 1/2 as many obs as average                                
    : site KWJ1 has < 1/2 as many obs as average                                
    : site MAC1 has < 1/2 as many obs as average                                
    : KIT3 residual dN > 2*RMS =       4 mm                                     
    : KOUR residual dE > 2*RMS =       3 mm                                     
    : STJO residual dN > 2*RMS =       5 mm                                     
    : WTZR residual dN > 2*RMS =       3 mm                                     
 261: constrained site MATE not in data set                                     
    : constrained site VILL not in data set                                     
    : constrained site WES2 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 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                                
    : site BOGT has < 1/2 as many obs as average                                
    : site KOUR has < 1/2 as many obs as average                                
    : site KWJ1 has < 1/2 as many obs as average                                
    : STJO residual dU > 2*RMS =      22 mm                                     
--------------------------------------------------------------------------------

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