[IGSREPORT-6352] Wk 1020 NOAA NGS Analysis Report

NOAA/NGS NOAA/NGS
Fri Aug 13 05:58:05 PDT 1999


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IGS Electronic Report    Fri Aug 13  5:58:05 PDT 1999      Message Number 6352
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Author: NOAA/NGS GPS Analysis Center                                            
Subject: Wk 1020 NOAA NGS Analysis Report

                                                                                
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NGS ANALYSIS REPORT GPS WEEK 1020 (Dates: 99 Jul 25 - 99 Jul 31)                
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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   billk at ngs.noaa.gov             
          Robert Dulaney  301-713-3209 ext.168   bobd at ngs.noaa.gov              
fax:                      301-713-4322                                          
                                                                                
                                                                                
PRODUCTS SENT TO CDDIS:                                                         
------------------------------------------------------------------------------  
 NGS10207.SUM         this text file                                            
 NGS10207.ERP         Earth rotation parameters for GPS Week 1020               
 NGS10207.SNX         weekly GPS coordinate solutions for GPS Wk 1020           
 NGS1020n.SP3         GPS ephemerides for GPS Week 1020, 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        
------------------------------------------------------------------------        
 206     712735         12.0       27          65               38              
 207     705599         11.5       27          66               40              
 208     682203         11.5       27          66               35              
 209     667983         11.4       27          65               36              
 210     669091         11.3       26          64               37              
 211     656797         11.6       27          66               39              
 212     683845         11.9       27          65               37              
------------------------------------------------------------------------        
                                                                                
NUMBER OF OBSERVATIONS BY SATELLITE AND DOY:                                    
----------------------------------------------------------------------          
 PRN        206      207      208      209      210      211      212           
----------------------------------------------------------------------          
  01      35089E   35416E   32505E   32560E   31255E   32111E   32919E          
  02      18802    19399    26231    24086    23769    24275    24530           
  03      32255E   23662E   26534    24740    26438    24509    24699           
  04      26115    23994    26939    26820    26498    22271    24746           
  05      28025    25197    25137    25345    27296    24581    27120           
  06      30468E   30365E   29878E   29158E   24207    21500    24757           
  07      34024E   33572E   22447E   22032    23246    22773    22579           
  08      29035    28653    29173    27090    30622    20583    29073           
  09      43972    41906    42382    39802    42888    41352    41968           
  10      47728    46160    44888    41712    49934    47032    44940           
  13      58568E   57492E   51946E   54996E   57018E   59126E   55818E          
  14      48424    46082    42042    46454    34658    50712    47696           
  15      41360    44378    45240    43630     -999    41970    41362           
  16      48652    48208    48110    44066    56676    45388    48906           
  17      45454    41690    42996    40858    52522    44450    45108           
  18      66036E   68478E   64248E   62558E   64274E   65132E   63636E          
  19      31288    37152    37780    40846    40104    40146    39826           
  21      40866    42546    45508    49338    45450    44970    46412           
  22      37384    47092    43302    44952    40950    43784    46336           
  23      57786    57648    54678    53416    56262    55242    56466           
  24      45458    49678    46340    46930    50730    49184    55458           
  25      47772    49190    51982    45934    53656    45912    53874           
  26      67166E   63900E   63750E   60396E   65018E   59190E   61948E          
  27      55148    52618    49408    45202    51106    45068    43464           
  29      67950E   68090E   64800E   65362E   65566E   64596E   66102E          
  30      41406    41440    38970    37056    40242    38436    40948           
  31      65426E   66934E   48348    48796    44466    46698    46576           
----------------------------------------------------------------------          
NOTE: E = satellite eclipsing during day                                        
                                                                                
GLOBAL LIST OF SITES USED DURING WEEK:                                          
-----------------------------------------------------------------------------   
global: ALGO AREQ ASC1 AUCK BAHR BOGT BRMU CAS1 CHAT COCO CRO1 DAV1 DGAR DRAO   
global: EISL FORT GALA GODE GOLD GOUG GRAZ GUAM HART HOB2 IISC IRKT KELY KERG   
global: KIT3 KOKB KOSG KOUR KWJ1 LHAS LPGS MAC1 MADR MAG0 MALI MATE MAW1 MCM4   
global: MDO1 METS MKEA NLIB NOUM NTUS NYAL ONSA PERT PIE1 POL2 POTS REYK RIOG   
global: SANT SEY1 SHAO STJO SUTH THU1 TIDB TIXI TROM TSKB VILL WES2 WHIT WTZR   
global: WUHN YAKZ YAR1 YELL ZWEN                                                
-----------------------------------------------------------------------------   
                                                                                
NUMBER OF OBSERVATIONS BY SITE AND DOY (AVERAGE PER BASELINE):                  
----------------------------------------------------------------------------    
       ION CODE$                                                                
 SITE   0123456    206      207      208      209      210      211      212    
----------------------------------------------------------------------------    
 ALGO*  2222222  14290    14324    12728    12675    12541    12943    14571    
 AREQ*  22  223   8521     8491                       8619     8416     8495    
 ASC1   2222222   6015     6785     4445     4540     5143     5121     4556    
 AUCK   1121222  11494    11387    11483    11226    11085    11335    11448    
 BAHR   3222332   9271     9432     9574     9891     9540     9177     9854    
 BOGT   2233323   7516     6263     4945     5476     6275     7277     7188    
 BRMU*  22 2222   9819     8718             11018     8489    10587    10581    
 CAS1   554 363   9454     8588     8042              8317     7497     8826    
 CHAT   1122222  11038    10915     9994     9872     9705     9987     9840    
 COCO     222                       7970     9524     9817                      
 CRO1     22                        7437     7441                               
 DAV1*  4434364  10112    10423    10107     9482     9464     6808     9247    
 DGAR   2222222   4044     6355     4163     5195     3869     3606     4188    
 DRAO*  2222222  13679    13549    13411    13201    12849    12504    13503    
 EISL   2222 22   7784     7542     8063     7379              6516     6102    
 FORT*  2222222   6526     6549     6220     5873     5480     5067     5122    
 GALA   2222      8038     8086     4132     1654                               
 GODE   22 2  2  12718    12863             13824                      13113    
 GOLD*  2222222  11918    12096    11589    10900    11428    11779    11940    
 GOUG       12                                        9491     9832             
 GRAZ*  2223222  14374    14235    14326    14233    13969    12098    13645    
 GUAM*  2222222   6993     6257     6542     6339     7032     5256     4934    
 HART*  1111122  10885    10758    11243    11030    10366    10523    10986    
 HOB2     12222                    10131    11171    13274    10186    11230    
 IISC   2222222   6586     6996     5876     7161     6165     6462     6236    
 IRKT*  22 2222  12019    12103             10717    11700    11884    12069    
 KELY     342 3                    12409    11032    11712             11709    
 KERG*  2111222  10826     9207     9720    10292    10080     9424    10448    
 KIT3*  2222222  11714    11829    11611    11540    12671    11586    13345    
 KOKB*   333242            6587    12830    10887    13395    11961    14034    
 KOSG*  2222222  13749    14161    13537    13237    13591    12532    12925    
 KOUR*   222222            5534     6000     5917     5587     5210     5391    
 KWJ1*  3433233   5429     4751     6226     5172     5496     4454     4383    
 LHAS*  2222      8109     8818     6468     7398                               
 LPGS   2222222   8970    11082    10068     9317    11304     9781    10874    
 MAC1*  222  4   11001    10992     9168                       8825             
 MADR*  2223222  13239    13821    12896    13649    12506    10908    10442    
 MAG0   222 222  11621    11594    11823                      10941    11415    
 MALI*  3232223   6890     7877     7706     8117     6846     6666     7146    
 MATE*  2222232  14416    14118    14388    14320    14046     9628    13960    
 MAW1   3324364  12635    12182    12487    11560    11708     8867    11526    
 MCM4   4444365   8991    10084     7364     7996     7661     5318     8070    
 MDO1*  2222222  13029    12901     9941     7173    12464    13016    12513    
 METS   22222    12963    12750    12727    12445    11782                      
 MKEA   3333232   8801     7924    10896     9144    11116    10532    11701    
 NLIB*  2222222  12176    11838    12361    11357    11899    12234    11468    
 NOUM   2222232  12706    12739    12801    12603    12198    12495    12841    
 NTUS     23 3                      4020     4638              5094             
 NYAL*  3334243  12054    10471    11343    11218    11747    11021    11565    
 ONSA*  2222221  13442    13062    13830    13764    13190    13373    12849    
 PERT*  11 1222  12740    11306              9702    10660    11519     9450    
 PIE1*  2222222  13260    13369    12701    12100    12617    13393    13196    
 POL2   2222222  11375    11641    10939    11508    10316    10142    10732    
 POTS*  222  22  14279    13938    14308                      10079    14131    
 REYK   2 22233  11957             11188    10328     9816    10536    11069    
 RIOG   1111111  11725    11548    12628    12072    11681     9721    11697    
 SANT*  2222222   9971    10011    11165    10453    11011     8679     9330    
 SEY1   32222 3   7260     7369     8756     9018     6018              6707    
 SHAO*        2                                                         9499    
 STJO   2222 22  11825    12221    12216    12608              8155     9446    
 SUTH   1111122  13769    13701    13845    13726    13168    13580    13672    
 THU1*  3333233  11463    11077    11403    10904    11352    11073    11531    
 TIDB*  2222222  11746    11683    12054    11466    11271    11624    11475    
 TIXI       253                                      12287    12021    12317    
 TROM*  2223233  12477     8162    12084    11270    10935    11500    11346    
 TSKB*  2222222  10450     9928    10177     8514     9777     8873     8862    
 VILL*  2223222  13273    14199    12836    13545    12310     8929             
 WES2*  2222222  12249    12908    11460    13152    12465    11658    11534    
 WHIT   2222232  13710    13131    13463    13192    12271    11726    13146    
 WTZR*  2222222  14461    14465    14376    14375    13935    14320    14506    
 WUHN   3232223  11726    11276     8993     9874    11708    10701    10339    
 YAKZ   222 222  12039    12944    11399             11720    12843    12894    
 YAR1*  11  22   14680    14621                      11890     9018             
 YELL*  2323343  12856    12367    12602    11690    10992    10701    11517    
 ZWEN*  2222221  11868    11838    11803    11791    12446    12513    12444    
----------------------------------------------------------------------------    
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*  51387.5     918129.4680  -4346071.2371   4561977.8204     1     1     2 
 AREQ*  51387.7    1942826.7601  -5804070.2450  -1796893.9449     2     1     1 
 ASC1   51387.5    6118526.1175  -1572344.6975   -876451.1498     7    20    17 
 AUCK   51387.5   -5105681.0605    461564.0223  -3782181.6656     5     4     7 
 BAHR   51387.5    3633908.9952   4425275.4997   2799861.3241     2     5     7 
 BOGT   51387.5    1744399.0761  -6116037.6992    512731.6393     2     9    23 
 BRMU*  51387.7    2304703.5635  -4874817.1800   3395186.9085     2     2     1 
 CAS1   51387.5    -901776.1701   2409383.3844  -5816748.4498     4     6     8 
 CHAT   51387.5   -4590670.9778   -275482.9109  -4404596.7147     5     6     7 
 COCO   51387.5    -741950.1301   6190961.6345  -1337768.4624     9    23     8 
 CRO1   51387.0    2607771.1958  -5488076.7434   1932767.7028     1    12    20 
 DAV1*  51387.5     486854.5505   2285099.2798  -5914955.7143     3     3     4 
 DGAR   51387.5    1916269.6846   6029977.4033   -801720.1156     9    12    30 
 DRAO*  51387.5   -2059164.7162  -3621108.3928   4814432.3589     3     2     3 
 EISL   51387.3   -1884951.5868  -5357595.9403  -2892890.5458     4    14    19 
 FORT*  51387.5    4985386.6379  -3954998.5865   -428426.4653     3     3     1 
 GALA   51386.0     -33795.9716  -6377522.6342    -82120.8788     3    15     8 
 GODE   51387.0    1130773.8453  -4831253.5759   3994200.4084     1     7     8 
 GOLD*  51387.5   -2353614.2146  -4641385.3735   3676976.4383     3     3     5 
 GOUG   51389.0    4795578.5518   -835299.4866  -4107634.0132     3     3     3 
 GRAZ*  51387.5    4194423.9299   1162702.6046   4647245.3456     1     2     0 
 GUAM*  51387.5   -5071312.7804   3568363.5164   1488904.3184     3     3     3 
 HART*  51387.5    5084625.3002   2670366.2776  -2768494.5153     2     2     2 
 HOB2   51388.5   -3950071.4610   2522415.1923  -4311638.2593     5     4     8 
 IISC   51387.5    1337936.7119   6070317.0942   1427876.5799     3     7     7 
 IRKT*  51387.7    -968332.2437   3794425.4202   5018167.7392     3     4     3 
 KELY   51388.2    1575559.2437  -1941827.9266   5848076.5022     2     2     6 
 KERG*  51387.5    1406337.3187   3918161.0998  -4816167.3912     2     4     5 
 KIT3*  51387.5    1944945.3042   4556652.2260   4004325.9773     3     4     5 
 KOKB*  51388.0   -5543838.1261  -2054587.0947   2387809.7816     3     1     1 
 KOSG*  51387.5    3899225.2234    396731.8582   5015078.3713     2     1     0 
 KOUR*  51388.0    3839591.4187  -5059567.5463    579956.9502     4     5     5 
 KWJ1*  51387.5   -6160880.9495   1339883.1444    960810.5345     3     2     1 
 LHAS*  51386.0    -106937.7773   5549269.5814   3139215.7857     1     5     3 
 LPGS   51387.5    2780102.9799  -4437418.8708  -3629404.5739     5     6     7 
 MAC1*  51386.5   -3464038.5600   1334172.7909  -5169224.2846     4     2     1 
 MADR*  51387.5    4849202.4647   -360329.0474   4114913.1227     1     1     1 
 MAG0   51387.3   -2825810.2023   1581232.9285   5477005.5235     5     2     8 
 MALI*  51387.5    4865366.4573   4110737.4941   -331121.6804     2     8     7 
 MATE*  51387.5    4641949.6707   1393045.3308   4133287.3650     1     1     0 
 MAW1   51387.5    1111287.1707   2168911.2622  -5874493.6220     4     1     6 
 MCM4   51387.5   -1311703.2362    310815.0573  -6213255.1583     8     7    16 
 MDO1*  51387.5   -1329998.7001  -5328393.3914   3236504.1839     2     1     1 
 METS   51386.5    2892570.8954   1311843.3748   5512634.0740     1     2     2 
 MKEA   51387.5   -5464105.1228  -2495166.7325   2148291.0182     3     6     7 
 NLIB*  51387.5    -130934.5097  -4762291.7233   4226854.6501     1     2     1 
 NOUM   51387.5   -5739971.5742   1387563.6062  -2402123.4295     3     7    16 
 NTUS   51387.8   -1508022.7629   6195576.6963    148799.4632    13     9    24 
 NYAL*  51387.5    1202430.6118    252626.6761   6237767.5238     1     2     1 
 ONSA*  51387.5    3370658.6365    711877.0669   5349786.8857     1     1     0 
 PERT*  51387.7   -2368687.0978   4881316.5402  -3341796.0480     2     3     5 
 PIE1*  51387.5   -1640916.8189  -5014781.2083   3575447.1187     1     2     1 
 POL2   51387.5    1239971.5320   4530790.0809   4302578.7765     2     4     4 
 POTS*  51387.3    3800689.7469    882077.3108   5028791.2701     1     2     1 
 REYK   51387.8    2587384.4476  -1043033.5035   5716563.9804     5     5    12 
 RIOG   51387.5    1429907.7589  -3495354.7661  -5122698.6882    10     6     8 
 SANT*  51387.5    1769693.3984  -5044574.1678  -3468321.0391     4     2     3 
 SEY1   51387.2    3602870.7216   5238174.4161   -516275.4956     2    12    23 
 SHAO*  51390.5   -2831733.3505   4675666.0128   3275369.4778     0     0     0 
 STJO   51387.3    2612631.1938  -3426807.0197   4686757.8122     5     4     7 
 SUTH   51387.5    5041274.7974   1916054.0287  -3397076.0317     3     2     6 
 THU1*  51387.5     538981.3757  -1388714.7923   6181005.1280     2     1     2 
 TIDB*  51387.5   -4460996.2258   2682557.0656  -3674443.5813     3     3     3 
 TIXI   51389.5   -1264873.0721   1569455.8042   6031003.4568     3     2     7 
 TROM*  51387.5    2102940.3025    721569.4096   5958192.1167     1     2     1 
 TSKB*  51387.5   -3957199.2294   3310199.6859   3737711.6714     4     3     4 
 VILL*  51387.0    4849833.7781   -335049.1355   4116014.8643     1     2     1 
 WES2*  51387.5    1492233.3509  -4458089.4792   4296046.0008     1     1     1 
 WHIT   51387.5   -2218337.8479  -2201205.1089   5543057.5584     2     4    10 
 WTZR*  51387.5    4075580.6535    931853.7122   4801568.0666     2     1     0 
 WUHN   51387.5   -2267749.2122   5009154.2760   3221290.6980     3     7     7 
 YAKZ   51387.5   -1915023.2865   2308213.2275   5610224.9808     5     4     9 
 YAR1*  51387.0   -2389025.6639   5043316.8871  -3078530.6137     1     1     1 
 YELL*  51387.5   -1224452.5439  -2689216.1109   5633638.2695     2     2     1 
 ZWEN*  51387.5    2886325.4999   2155998.4405   5245816.1511     4     3     2 
--------------------------------------------------------------------------------
NOTES: * Indicates sites with constrained coordinates.                          
                                                                                
WARNINGS:                                                                       
--------------------------------------------------------------------------------
 206: constrained site KOKB not in data set                                     
    : constrained site KOUR not in data set                                     
    : constrained site SHAO not in data set                                     
    : PRN 02    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 08    has < 2/3 as many obs as average                                
    : site DGAR has < 1/2 as many obs as average                                
    : site KWJ1 has < 1/2 as many obs as average                                
    : NYAL residual dU > 2*RMS =       2 mm                                     
    : WTZR residual dE > 2*RMS =       2 mm                                     
    : YAKZ residual dE > 2*RMS =       8 mm                                     
 207: constrained site SHAO 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 04    has < 2/3 as many obs as average                                
    : PRN 05    has < 2/3 as many obs as average                                
    : PRN 08    has < 2/3 as many obs as average                                
    : site KWJ1 has < 1/2 as many obs as average                                
    : FORT residual dN > 2*RMS =       6 mm                                     
    : HART residual dE > 2*RMS =       3 mm                                     
 208: constrained site AREQ not in data set                                     
    : constrained site BRMU not in data set                                     
    : constrained site IRKT not in data set                                     
    : constrained site PERT not in data set                                     
    : constrained site YAR1 not in data set                                     
    : constrained site SHAO 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 04    has < 2/3 as many obs as average                                
    : PRN 05    has < 2/3 as many obs as average                                
    : PRN 07    has < 2/3 as many obs as average                                
    : site ASC1 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 GALA has < 1/2 as many obs as average                                
    : site NTUS has < 1/2 as many obs as average                                
    : BAHR residual dU > 2*RMS =      14 mm                                     
    : GUAM residual dE > 2*RMS =       6 mm                                     
    : TSKB residual dN > 2*RMS =       8 mm                                     
 209: constrained site AREQ not in data set                                     
    : constrained site MAC1 not in data set                                     
    : constrained site POTS not in data set                                     
    : constrained site YAR1 not in data set                                     
    : constrained site SHAO 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 04    has < 2/3 as many obs as average                                
    : PRN 05    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 ASC1 has < 1/2 as many obs as average                                
    : site GALA has < 1/2 as many obs as average                                
    : site NTUS has < 1/2 as many obs as average                                
    : LPGS residual dN > 2*RMS =      10 mm                                     
    : NYAL residual dE > 2*RMS =       4 mm                                     
 210: constrained site LHAS not in data set                                     
    : constrained site MAC1 not in data set                                     
    : constrained site POTS not in data set                                     
    : constrained site SHAO 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 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 ASC1 has < 1/2 as many obs as average                                
    : site DGAR has < 1/2 as many obs as average                                
    : GUAM residual dU > 2*RMS =       5 mm                                     
 211: constrained site LHAS not in data set                                     
    : constrained site SHAO 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 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                                
    : site DGAR has < 1/2 as many obs as average                                
    : site KWJ1 has < 1/2 as many obs as average                                
    : IISC residual dU > 2*RMS =      16 mm                                     
    : ZWEN residual dE > 2*RMS =       5 mm                                     
 212: constrained site LHAS not in data set                                     
    : constrained site MAC1 not in data set                                     
    : constrained site VILL not in data set                                     
    : constrained site YAR1 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 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 ASC1 has < 1/2 as many obs as average                                
    : site DGAR has < 1/2 as many obs as average                                
    : site FORT has < 1/2 as many obs as average                                
    : site GUAM has < 1/2 as many obs as average                                
    : site KWJ1 has < 1/2 as many obs as average                                
    : WUHN residual dE > 2*RMS =      14 mm                                     
--------------------------------------------------------------------------------
                                                                                


[Mailed From: kass <billk at ngs.noaa.gov>]



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