Subject: [IGSREPORT-7073] Wk 1055 NOAA NGS Analysis Report
From: kass <[email-masked]>
To: [email-masked]
Date: Tue, 11 Apr 2000 14:36:31 -0400 (EDT)

******************************************************************************
IGS Electronic Report   11 Apr 11:42:21 PDT 2000      Message Number 7073
******************************************************************************

Author: NOAA/NGS GPS Analysis Center                                            
                                                                                
******************************************************************************* 
NGS ANALYSIS REPORT GPS WEEK 1055 (Dates:  0 Mar 26 -  0 Apr 01)                
******************************************************************************* 
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:                                                         
------------------------------------------------------------------------------  
 NGS10557.SUM         this text file                                            
 NGS10557.ERP         Earth rotation parameters for GPS Week 1055               
 NGS10557.SNX         weekly GPS coordinate solutions for GPS Wk 1055           
 NGS1055n.SP3         GPS ephemerides for GPS Week 1055, SP3 format (n=0..6)    
------------------------------------------------------------------------------  
                                                                                
SOLUTION CHARACTERISTICS:                                                       
------------------------------------------------------------------------------  
 Software             page5 developed at NOAA                                   
 Terr. Ref. Frame     nominally, ITRF97 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        
------------------------------------------------------------------------        
 086     666091         11.1       28          66               42              
 087     644502         10.9       27          68               42              
 088     646088         11.3       28          66               43              
 089     655277         11.1       28          68               42              
 090     657029         10.9       28          66               41              
 091     596917         11.4       27          66               43              
 092     627007         11.2       28          67               44              
------------------------------------------------------------------------        
                                                                                
NUMBER OF OBSERVATIONS BY SATELLITE AND DOY:                                    
----------------------------------------------------------------------          
 PRN        086      087      088      089      090      091      092           
----------------------------------------------------------------------          
  01      23735    19533    20357    21323    21080    18550    19955           
  02      22371    25485    23168    21553    24337    21153    21408           
  03      20414    21163    19946    21413    22712    21391    21927           
  04      27584E   27756E   27504E   26845E   27728E   25382E   24591E          
  05      13337    13828    14271    19089    19482    18355    17560           
  06      18538    20064    20195    23246    23768    22771    22532           
  07      20798    17151    18331    20942    19545    19753    18103           
  08      30156E   30503E   29945E   30317E   20037E   16451    19058           
  09      52632E   47544E   59092E   44796    50550    48454    47878           
  10      45160    42902    44698    42798    40790    37992    38438           
  11      56376E   52094E   53348E   54808E   54272E   53308E   53226E          
  13      44218    49072    48852    53708    53314    47088    48800           
  14      35314     -999    19164    21684    20534    21154    21472           
  15      54784E   57308E   56764E   54300E   54470E   54860E   52922E          
  16      36536    35700    31756    31030    32714    27500    36052           
  17      57058E   58986E   58234E   59376E   61108E   59748E   57310E          
  18      48860    52556    46848    44690    49246    42144    43656           
  19      46128    53214    52434    51832    50804     -999    49456           
  21      51702    52670    55668    54886    52770    53816    55402           
  22      47616    46396    40690    46222    42726    41322    44188           
  23      50764    50850    49380    48734    51322    49556    47014           
  24      55432E   58098E   55194E   54572E   55006E   54326E   52498E          
  25      46756E   35858    43020    45276    47992    42590    40510           
  26      40202    41626    42532    43936    41022    41716    42424           
  27      58984E   44796E   39556    40524    48836    46678    49234           
  29      52738    55328    53356    57310    60008    54164    52746           
  30      52954    56992    48742    47632    47900    48142    48596           
  31      44102    46048    45414    42984    41296    41664    41924           
----------------------------------------------------------------------          
NOTE: E = satellite eclipsing during day                                        
                                                                                
GLOBAL LIST OF SITES USED DURING WEEK:                                          
-----------------------------------------------------------------------------   
global: ALGO AREQ ASC1 AUCK BAHR BAKO BRMU CAS1 CHAT COCO CRO1 DAV1 DGAR DRAO   
global: EISL FAIR FORT GALA GODE GOL2 GRAZ GUAM HARK HOB2 IISC IRKT KELY KERG   
global: KIT3 KOKB KOSG KOUR KSTU LHAS LPGS MAC1 MAG0 MALI MAS1 MATE MAW1 MCM4   
global: MDO1 METS MKEA NLIB NOUM NTUS NYAL OHIG ONSA PERT PETP PIE1 POL2 POTS   
global: REYK RIOG SANT STJO SUTH THU1 TID2 TIXI TSKB VILL WES2 WHIT WTZR WUHN   
global: YAKZ YAR1 YELL ZWEN                                                     
-----------------------------------------------------------------------------   
                                                                                
NUMBER OF OBSERVATIONS BY SITE AND DOY (AVERAGE PER BASELINE):                  
----------------------------------------------------------------------------    
       ION CODE$                                                                
 SITE   0123456    086      087      088      089      090      091      092    
----------------------------------------------------------------------------    
 ALGO*  3444454  13553    11905    11875     9777    12278    11181    10680    
 AREQ*  6555555  11930     9314    12534    11500    12354    11825     8001    
 ASC1   7665576   3730     2921     4311     4092     4359     6006     6801    
 AUCK*  3333333  12364    11951    10987    10962     9789    10115    11501    
 BAHR*  6766667   8365     8217     8369     7109     5833     7363     5943    
 BAKO   54 5555   8199     8485              7684     6602     4669     6014    
 BRMU*  3333333  10691     9352     9654     8817     9198     8876     9398    
 CAS1*  98>9>>>  11376    10647    10852    10323    11163    10251    11541    
 CHAT*  3333333  12703    12029    11290    10998     9759    10126    11716    
 COCO   6566667   9559     9176     9187     8509     8840     6906     7924    
 CRO1   555544   10775     8973     8601     8648    10221     8588             
 DAV1*  7778>>7  16896    16041    16926    16835    17157    16182    17194    
 DGAR   5556556   5907     5764     5891     5660              4789     1849    
 DRAO*  3433444  10484    13724    10023    12095    14082    11048    14115    
 EISL         3                                                         3357    
 FAIR*  3333474  11927    10627    10769    11246    10875     7484    12427    
 FORT*  4444444   4169     2865     4531     4007     4704     4106     3500    
 GALA   6556555  11796     8247     8468    11971    13214     7977    12487    
 GODE   34 54    13103    12085              7029    11645                      
 GOL2*  3443444   5798    10511     4052    10364     9623     8558     9912    
 GRAZ*  23   22   9863     9838                               13740    11585    
 GUAM*  6666766   2545     2505     2813     2722     2884     2692     2941    
 HARK*  3444444   5366     5574     4835     5010     6200     4776     4876    
 HOB2*  3333442  11345    11923    11771    11728    11739    10452    11935    
 IISC   5557 46   2151     1647              2875                               
 IRKT*  3333333   8247     9812     9847     9756     8559     8755     9004    
 KELY   45566 5   9222     7694     6355     9281     9999              9541    
 KERG*  3344454  11197    10834    10973    10293    10373     9511    12546    
 KIT3*   44               11319    12008                                        
 KOKB*  5555565   7785     7974     7509     9828     7379     5286     7652    
 KOSG*  33 3323  12891    11282             11592    12899    13236    12777    
 KOUR*  6565545   8740     2318     6460     7449     9042     4389     3474    
 KSTU    444444           11588    11863    11783    10649     9589    11423    
 LHAS*  3333 32   2151     1647     4000     3316                       4293    
 LPGS   5555555  12544    11866    11927    12042    11798    11999    12506    
 MAC1*  3 445>5  10716             13147    12788    12882    11232    12920    
 MAG0   3443343  10521    10433    10236     6363     8150     6048     6312    
 MALI*  5555635   3079     2912     2686     3001     2801     2334     2415    
 MAS1*  6666666  10339     9710    10267    10310     9760     9801    10306    
 MATE*  45445 4   9419    12855    13225    13067    12425             10596    
 MAW1   55679>6  15423    14475    15367    14819    15280    14317    15442    
 MCM4*  887>8>7   6808     5443     6020     3923     5711     4922     7501    
 MDO1*  2222222   9268     6566     7373     8161     7891     6509     8021    
 METS   333333   12881    12520    10477    13136    12485    12959             
 MKEA   333 343   7170     6800     6699              6714     4803     6978    
 NLIB*  3332333  10384     7881     9363     8522     8347     8603     8288    
 NOUM   4444564  12129    12090    10984    11290    11016    10846    11330    
 NTUS      6566                              7519     4543     3068     5253    
 NYAL*  6688775  11135     9576    10024    11294    12002    11799    13643    
 OHIG*  3444443  13117    12844    13075    12977    12938    12471    12783    
 ONSA*  3 3432   14240             13631    14764    14041    14186             
 PERT*   222333           10992     9675    10674     9462     7255     9091    
 PETP   3444443  10350    10380    10447     6530     6434     5199     6417    
 PIE1*  2222222   8484     8582     7775     8920     8793     8311     9022    
 POL2   2233332   8627     9722     7156     6421     7532     8103     6739    
 POTS*  3333323  13936    12429    13461    14064    13953    14123    14088    
 REYK   3333454  10558     9739    10001    10071    11711    11647    11192    
 RIOG   4444444  12432    11922    12187    12319    12245    11648    11765    
 SANT*  6777667  12594    11885    12053    12244    12149    11294    11269    
 STJO   3444444  11984    10996    11725    13171    13279    11321    11240    
 SUTH   2222222   7786     8199     6943     7513     7969     6875     7647    
 THU1*   79  75            6288     6969                      10114    12122    
 TID2*  3333443  13634    13418    12943    13369    13677    12942    12984    
 TIXI    344575           12901    11782    11995    11634     9818    12079    
 TSKB*     3233                              5147     5185     4348     5008    
 VILL*  3333333  10631    10002    10482    10534    10153    12232    11575    
 WES2*  333  33  12461    11436    11689                      10860    10887    
 WHIT   223236   12051     9997    11269    10481    11210     8535             
 WTZR*  3 44433  14985             14936    14821    13836    14245    14963    
 WUHN   33333 3   4594     4937     5387     6480     6708              5213    
 YAKZ   4344453  10138    10152     9899     9714     9559     8594    10320    
 YAR1*  2222232   8697     9808     9997     8472     7361     5492     7055    
 YELL*  4454575  14800    11853    12834    12649    12826     8798    12758    
 ZWEN*  3333333  12966    11818     7327    12522    12005    12180    13278    
----------------------------------------------------------------------------    
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*  15108.5     918129.4544  -4346071.2524   4561977.8132     1     1     0 
 AREQ*  15108.5    1942826.7747  -5804070.2603  -1796893.9557     1     1     1 
 ASC1   15108.5    6118526.1125  -1572344.7166   -876451.1624     6    17    18 
 AUCK*  15108.5   -5105681.0811    461564.0458  -3782181.6842     3     1     2 
 BAHR*  15108.5    3633908.9609   4425275.5103   2799861.3410     3     1     1 
 BAKO   15108.7   -1836969.0018   6065617.0950   -716257.8085     4     9    16 
 BRMU*  15108.5    2304703.5548  -4874817.1858   3395186.8985     1     1     0 
 CAS1*  15108.5    -901776.1576   2409383.4051  -5816748.4831     2     2     4 
 CHAT*  15108.5   -4590670.9904   -275482.8642  -4404596.7318     2     2     2 
 COCO   15108.5    -741950.1413   6190961.6661  -1337768.4592     3     5    17 
 CRO1   15108.0    2607771.2025  -5488076.7543   1932767.7005     3     4     8 
 DAV1*  15108.5     486854.5570   2285099.3017  -5914955.7385     2     1     3 
 DGAR   15108.3    1916269.6257   6029977.3773   -801720.0935    10    12    37 
 DRAO*  15108.5   -2059164.7328  -3621108.4040   4814432.3435     1     1     0 
 EISL   15111.5   -1884951.5635  -5357595.9428  -2892890.5468     0     0     0 
 FAIR*  15108.5   -2281621.5046  -1453595.8062   5756961.8774     1     0     0 
 FORT*  15108.5    4985386.6383  -3954998.5987   -428426.4702     1     1     0 
 GALA   15108.5     -33795.9419  -6377522.6503    -82120.8843     1     6     7 
 GODE   15107.5    1130773.8273  -4831253.5835   3994200.3934     1     4     4 
 GOL2*  15108.5   -2353614.2279  -4641385.3753   3676976.4210     1     1     0 
 GRAZ*  15108.5    4194423.9188   1162702.6150   4647245.3432     1     0     0 
 GUAM*  15108.5   -5071312.7900   3568363.5237   1488904.3029     1     0     0 
 HARK*  15108.5    5084625.3172   2670366.3044  -2768494.5222     0     1     1 
 HOB2*  15108.5   -3950071.4886   2522415.2185  -4311638.2646     1     1     1 
 IISC   15106.8    1337936.6632   6070317.1143   1427876.6239    13    17    15 
 IRKT*  15108.5    -968332.2714   3794425.4181   5018167.7317     5     1     2 
 KELY   15108.2    1575559.2195  -1941827.9386   5848076.4779     3     4     6 
 KERG*  15108.5    1406337.3246   3918161.1198  -4816167.4086     3     2     3 
 KIT3*  15107.0    1944945.2755   4556652.2352   4004325.9742     1     0     0 
 KOKB*  15108.5   -5543838.1509  -2054587.0567   2387809.7850     1     0     0 
 KOSG*  15108.7    3899225.2160    396731.8673   5015078.3695     1     0     0 
 KOUR*  15108.5    3839591.4259  -5059567.5598    579956.9487     1     2     1 
 KSTU   15109.0    -174281.7973   3571333.0297   5264196.0302     3     3    13 
 LHAS*  15107.9    -106937.8150   5549269.5846   3139215.7925     1     1     1 
 LPGS   15108.5    2780102.9897  -4437418.8735  -3629404.5823     3     5     7 
 MAC1*  15108.8   -3464038.5667   1334172.8244  -5169224.3021     1     1     0 
 MAG0   15108.5   -2825810.2170   1581232.9238   5477005.4728     8     4     6 
 MALI*  15108.5    4865366.4304   4110737.4842   -331121.6767     2     4     4 
 MAS1*  15108.5    5439192.2565  -1522055.5742   2953454.7496     1     0     1 
 MATE*  15108.2    4641949.6626   1393045.3415   4133287.3722     1     0     0 
 MAW1   15108.5    1111287.1774   2168911.2818  -5874493.6442     2     2     5 
 MCM4*  15108.5   -1311703.2143    310815.0652  -6213255.1460     2     1     3 
 MDO1*  15108.5   -1329998.7136  -5328393.3949   3236504.1633     1     0     0 
 METS   15108.0    2892570.8796   1311843.3805   5512634.0706     2     3     6 
 MKEA   15108.5   -5464105.1459  -2495166.6970   2148291.0225     4     5    17 
 NLIB*  15108.5    -130934.5240  -4762291.7347   4226854.6373     1     0     0 
 NOUM   15108.5   -5739971.5997   1387563.6210  -2402123.4431     4     3     4 
 NTUS   15110.0   -1508022.7864   6195576.6834    148799.4372     3    18    11 
 NYAL*  15108.5    1202430.5984    252626.6751   6237767.5295     1     1     1 
 OHIG*  15108.5    1525872.5531  -2432481.3147  -5676146.1306     2     2     1 
 ONSA*  15108.3    3370658.6312    711877.0761   5349786.8956     1     1     0 
 PERT*  15109.0   -2368687.1235   4881316.5617  -3341796.0347     1     1     1 
 PETP   15108.5   -3576239.7807   1401003.4637   5075177.4652     8     6    10 
 PIE1*  15108.5   -1640916.8351  -5014781.2139   3575447.1006     1     0     0 
 POL2   15108.5    1239971.4988   4530790.0758   4302578.7604     3     2    17 
 POTS*  15108.5    3800689.7320    882077.3181   5028791.2599     1     0     1 
 REYK   15108.5    2587384.4309  -1043033.5019   5716563.9758     3     4     6 
 RIOG   15108.5    1429907.7629  -3495354.7776  -5122698.7025     3     4     4 
 SANT*  15108.5    1769693.4161  -5044574.1693  -3468321.0479     1     1     1 
 STJO   15108.5    2612631.1760  -3426807.0322   4686757.8087     3     4     9 
 SUTH   15108.5    5041274.8391   1916054.0671  -3397076.0595     6     6    16 
 THU1*  15109.0     538981.3563  -1388714.8030   6181005.1272     2     1     1 
 TID2*  15108.5   -4460996.2475   2682557.0833  -3674443.5785     1     1     1 
 TIXI   15109.0   -1264873.0967   1569455.8033   6031003.4321     3     1    14 
 TSKB*  15110.0   -3957199.2448   3310199.6905   3737711.6538     1     1     0 
 VILL*  15108.5    4849833.7722   -335049.1183   4116014.8615     1     1     0 
 WES2*  15108.3    1492233.3334  -4458089.4903   4296045.9960     1     0     0 
 WHIT   15108.0   -2218337.8710  -2201205.1090   5543057.5423     2     3     8 
 WTZR*  15108.8    4075580.6446    931853.7217   4801568.0662     2     1     0 
 WUHN   15108.2   -2267749.2804   5009154.3212   3221290.7141     4     7    12 
 YAKZ   15108.5   -1915023.3112   2308213.2086   5610224.9596     6     3     7 
 YAR1*  15108.5   -2389025.6859   5043316.9110  -3078530.6027     1     1     0 
 YELL*  15108.5   -1224452.5625  -2689216.1230   5633638.2614     1     0     1 
 ZWEN*  15108.5    2886325.4826   2155998.4502   5245816.1448     3     1     2 
--------------------------------------------------------------------------------
NOTES: * Indicates sites with constrained coordinates.                          
                                                                                
WARNINGS:                                                                       
--------------------------------------------------------------------------------
 086: constrained site KIT3 not in data set                                     
    : constrained site PERT not in data set                                     
    : constrained site THU1 not in data set                                     
    : constrained site TSKB 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 ASC1 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 IISC has < 1/2 as many obs as average                                
    : site LHAS has < 1/2 as many obs as average                                
    : site MALI has < 1/2 as many obs as average                                
    : site WUHN has < 1/2 as many obs as average                                
    : ASC1 residual dU > 2*RMS =      38 mm                                     
    : KERG residual dU > 2*RMS =       6 mm                                     
 087: constrained site MAC1 not in data set                                     
    : constrained site ONSA not in data set                                     
    : constrained site WTZR not in data set                                     
    : constrained site TSKB 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 ASC1 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 IISC has < 1/2 as many obs as average                                
    : site KOUR has < 1/2 as many obs as average                                
    : site LHAS has < 1/2 as many obs as average                                
    : site MALI has < 1/2 as many obs as average                                
    : TIXI residual dN > 2*RMS =       7 mm                                     
 088: constrained site GRAZ not in data set                                     
    : constrained site KOSG not in data set                                     
    : constrained site TSKB 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 14    has < 2/3 as many obs as average                                
    : site ASC1 has < 1/2 as many obs as average                                
    : site FORT has < 1/2 as many obs as average                                
    : site GOL2 has < 1/2 as many obs as average                                
    : site GUAM has < 1/2 as many obs as average                                
    : site LHAS has < 1/2 as many obs as average                                
    : site MALI has < 1/2 as many obs as average                                
    : MAC1 residual dE > 2*RMS =       2 mm                                     
    : REYK residual dE > 2*RMS =       7 mm                                     
    : VILL residual dE > 2*RMS =       2 mm                                     
 089: constrained site GRAZ not in data set                                     
    : constrained site WES2 not in data set                                     
    : constrained site KIT3 not in data set                                     
    : constrained site THU1 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 14    has < 2/3 as many obs as average                                
    : site ASC1 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 IISC has < 1/2 as many obs as average                                
    : site LHAS has < 1/2 as many obs as average                                
    : site MALI has < 1/2 as many obs as average                                
    : site MCM4 has < 1/2 as many obs as average                                
    : KOKB residual dN > 2*RMS =       1 mm                                     
 090: constrained site GRAZ not in data set                                     
    : constrained site LHAS not in data set                                     
    : constrained site WES2 not in data set                                     
    : constrained site KIT3 not in data set                                     
    : constrained site THU1 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 14    has < 2/3 as many obs as average                                
    : site ASC1 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 MALI has < 1/2 as many obs as average                                
    : site NTUS has < 1/2 as many obs as average                                
    : HARK residual dE > 2*RMS =       1 mm                                     
 091: constrained site LHAS not in data set                                     
    : constrained site MATE not in data set                                     
    : constrained site KIT3 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                                
    : PRN 08    has < 2/3 as many obs as average                                
    : PRN 14    has < 2/3 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 KOUR has < 1/2 as many obs as average                                
    : site MALI has < 1/2 as many obs as average                                
    : site NTUS has < 1/2 as many obs as average                                
    : site TSKB has < 1/2 as many obs as average                                
    : IRKT residual dE > 2*RMS =       2 mm                                     
    : TID2 residual dN > 2*RMS =       3 mm                                     
 092: constrained site ONSA not in data set                                     
    : constrained site KIT3 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                                
    : PRN 08    has < 2/3 as many obs as average                                
    : PRN 14    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 FORT 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 LHAS has < 1/2 as many obs as average                                
    : site MALI has < 1/2 as many obs as average                                
    : AUCK residual dU > 2*RMS =       3 mm                                     
    : DGAR residual dU > 2*RMS =      83 mm                                     
    : KERG residual dN > 2*RMS =       8 mm                                     
    : MALI residual dE > 2*RMS =       8 mm                                     
    : SUTH residual dU > 2*RMS =      37 mm                                     
--------------------------------------------------------------------------------