Subject: [IGSREPORT-7114] Wk 1056 NOAA NGS Analysis Report
From: kass <[email-masked]>
To: [email-masked]
Date: Mon, 24 Apr 2000 07:40:56 -0400 (EDT)

******************************************************************************
IGS Electronic Report   24 Apr 04:46:48 PDT 2000      Message Number 7114
******************************************************************************

Author: NOAA/NGS GPS Analysis Center                                            
                                                                                
******************************************************************************* 
NGS ANALYSIS REPORT GPS WEEK 1056 (Dates:  0 Apr 02 -  0 Apr 08)                
******************************************************************************* 
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:                                                         
------------------------------------------------------------------------------  
 NGS10567.SUM         this text file                                            
 NGS10567.ERP         Earth rotation parameters for GPS Week 1056               
 NGS10567.SNX         weekly GPS coordinate solutions for GPS Wk 1056           
 NGS1056n.SP3         GPS ephemerides for GPS Week 1056, 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        
------------------------------------------------------------------------        
 093     640333         11.2       28          68               44              
 094     608658         11.5       28          65               41              
 095     621000         11.7       28          66               42              
 096     667527         11.2       28          66               43              
 097     569361         11.3       27          66               42              
 098     690935         11.4       28          68               44              
 099     616082         11.1       26          67               43              
------------------------------------------------------------------------        
                                                                                
NUMBER OF OBSERVATIONS BY SATELLITE AND DOY:                                    
----------------------------------------------------------------------          
 PRN        093      094      095      096      097      098      099           
----------------------------------------------------------------------          
  01      20391    19360    19491    20723    18818    23765    19143           
  02      22423    19939    23256    24353    22016    26466    24706           
  03      22626    20500    19490    22765    20696    23299    21643           
  04      26807E   27349E   26708E   29684E   23817E   21887E   24685           
  05      19910    20663    21708    20916    16669    23000    23452           
  06      22680    21765    22387    22789    19769    23371    20634           
  07      19305    20508    20322    22049    20277    22923    24434           
  08      19603    19473    17809    19833    17053    19891    20536           
  09      49096    42638    44172    49300    44928    50760    48940           
  10      41914    39570    42038    44214    37762    47602    47006           
  11      52710E   51784E   33512E   37200    34088    40178    34926           
  13      50560    48804    52214    54140     -999    54642    51656           
  14      22992    18056    29796    25522    23160    24868     -999           
  15      56816E   51762E   51486E   56926E   53242E   63102E   56588E          
  16      35540    33136    32666    35344    28434    39154    49990           
  17      56072E   56104E   54302E   59522E   51692E   59450E   56436E          
  18      47054    43692    44780    50592    47428    53010    52546           
  19      49036    41848    49346    50930    49150    52478     -999           
  21      51272    50650    50456    51962    48482    54604    49860           
  22      41480    39792    40738    46668    38944    50170    40942           
  23      46964    43378    43974    49262    45644    52100    48810           
  24      54662E   54820E   54436E   59958E   47286E   59454E   47870           
  25      42028    40420    43140    47444    40390    50572    45532           
  26      45756    40910    42204    44688    40442    42482    42620           
  27      45428    45942    48504    53542    50834    59000    55030           
  29      53096    52098    56770    59004    52448    58802    59402           
  30      47962    43758    43000    48432    43746    51422    46140           
  31      42738    39040    42124    44180    42392    48816    39404           
----------------------------------------------------------------------          
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: KOKB KOSG KOUR KSTU LHAS LPGS MAC1 MAG0 MALI MAS1 MATE MAW1 MCM4 MDO1   
global: METS MKEA NLIB NOUM NTUS NYAL OHIG ONSA PERT PETP PIE1 POL2 POTS REYK   
global: RIOG SANT STJO SUTH THU1 TID2 TIXI TSKB VILL WES2 WHIT WTZR WUHN YAKZ   
global: YAR1 YELL ZWEN                                                          
-----------------------------------------------------------------------------   
                                                                                
NUMBER OF OBSERVATIONS BY SITE AND DOY (AVERAGE PER BASELINE):                  
----------------------------------------------------------------------------    
       ION CODE$                                                                
 SITE   0123456    093      094      095      096      097      098      099    
----------------------------------------------------------------------------    
 ALGO*  4344643  13032    10747    11675    10748    11566    12500    11602    
 AREQ*  6555766   8316    10255    12366    12162     9842    11054    11337    
 ASC1   667 676   6573     3145     4360              3703     3294     5116    
 AUCK*  3333333   9204     8426     8597     9027     9314    10350     9318    
 BAHR*  6666556   8372     7820     7859     6351     4881     5298     5422    
 BAKO   455 455   7344     7423     5783              6783     9184     3195    
 BRMU*  3333333  11639    11053     9167     9969     7774    11090    10657    
 CAS1*  >>>9>8>  11388    10711    11042    11234     9651    11574     8834    
 CHAT*  3333333   8889     9009     8442     8981     9285    10213     9273    
 COCO   6676667   9243     7505     8543     8362     7838    10152     9068    
 CRO1   5555575   9288    11241    11087    10560     6921     9786     8971    
 DAV1*  99>6>7>  16939    15896    16425    15276    15437    17268    14432    
 DGAR    566565            1957     1943     5615              6038     6032    
 DRAO*  4334554  11987    12030    13728    11029     8818    13119    12433    
 EISL   33        3799     3739                                                 
 FAIR*  6553866  11323     9536    10032    10808     5491     8949     9007    
 FORT*  4444443   3522     4305     4803     3244     3841     2873     5300    
 GALA   5555755  13146    13115    12957    13255    10222    12128    12789    
 GODE    4455              6195     9711     8023    12589                      
 GOL2*  5444554   6708     7293     9872     9920    10103    10187     8304    
 GRAZ*  2 33322  10329              9260    13272    10545    14314     9298    
 GUAM*  5565556   3291     3081     2235     2511     2513     3364     2972    
 HARK*  4444433   4672     5325     5210     5498     5504     8292     6453    
 HOB2*  4444534  12071    11346    11285    11066    10820    12183    12446    
 IISC   3467454    910                                2568     2488             
 IRKT*  3333333   9465     8940     8936     9493     8180    10405     8748    
 KELY   65 47 6   8264     8582              9844     4884              7373    
 KERG*  3353734  12522     9996    11472     9999     7249    10597    11095    
 KOKB*  5555556   6200     7602     7344     7733     6984     9590     6033    
 KOSG*  3333423  12861    12340    11196    12821    11126    12892    10832    
 KOUR*  6555564   7701     9565     9519     8251     5877     7097     7537    
 KSTU   4444534  11632    10587    10667    12508    10281    13240    10381    
 LHAS*  233       2744     3928                                                 
 LPGS   6555676  11653    11783    11871    12417    12185    10240    11831    
 MAC1*  7785>77  12772    12444    10542    10933    11226    12259    10410    
 MAG0   4443434   6033     5656     5375     6415     5742     6400     3243    
 MALI*  4445545   2717     2328     2853     2919     3260     3437     2761    
 MAS1*  6666775   9700    10696     9143    10078     7864    11910     8432    
 MATE*  5555535   9319    13108     8370    12280     9601    13684     9251    
 MAW1   7696>69  15369    14816    14600    13599    12458    15248    13838    
 MCM4*  9997>7>   7573     6530     6903     7996     3438     8092     3306    
 MDO1*  2222332   8696     9219     9012     8317     8257     6987     7356    
 METS   3  2533  12994                      12128     9818    12042    12008    
 MKEA   33333 3   4737     5849     6760     7198     6277              5152    
 NLIB*  3333443   9767    10344     9157     9161     8657     8788     8738    
 NOUM   5 75555  10614             10430    10419    10511    11388    10642    
 NTUS   5 6  5    6315              6628                       7426             
 NYAL*  6675 48  12964    13635    12744    13833             11607    12417    
 OHIG*  3333533  10708    11501    11644    12689    12119    11658    12755    
 ONSA*    43533                    14820    14846    13963    14776    12854    
 PERT*  322323    9936     8912     7983                      12117             
 PETP   4444 33   6174     6005     5404     6551              6610     6618    
 PIE1*  2222332   7473     8459     8736     8297     8370     7844     8008    
 POL2   2333223   6954     6248     8605     8282     7803     9182     7363    
 POTS*  3343424  13765    14156    13599    14737    13496    14587    14193    
 REYK   5363744  11211    10930    10399    11648     8112    10532     9651    
 RIOG    344453           12495    12617    12045    11791    12830    11592    
 SANT*  7  88>7  12907                      12438    12063     8749    10961    
 STJO   3344633  13059    13139    13255    12755    10632    12701    11887    
 SUTH   2222222   7465     6343     7596     8264     7660    12687     9607    
 THU1*  7685958  11233    11964    11789    12275     6939    11591    10509    
 TID2*  4444443  13381    10778    13403    13138    13042    13674    11069    
 TIXI   6664856  11927    11629    11835    12229     8255    11537    12305    
 TSKB*  3333332   5039     4864     4253     5150     4231     5323     4797    
 VILL*  3333433  10487    11089     9288    10876     8489    11934     8578    
 WES2*  3  3533  13207                      12328    10240    12796    11979    
 WHIT    343654           10102    10712    10914     7415     9600     9367    
 WTZR*  4343424  14977    14786    14768    14989    14201    14893    11885    
 WUHN   3333333   5613     5792     5023     6041     5317     6303     5870    
 YAKZ   4443634   9945     9332     9568    10382     8888    11673     8502    
 YAR1*  2222232   8311     8122     6873     7989     7144    10001     6624    
 YELL*  6664>46  11941    12052    11831    12417     8118    12117    11066    
 ZWEN*  3343544  12845    12949    12589    10284    11470    11437    12305    
----------------------------------------------------------------------------    
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*  15115.5     918129.4539  -4346071.2516   4561977.8142     1     1     0 
 AREQ*  15115.5    1942826.7762  -5804070.2600  -1796893.9553     2     1     0 
 ASC1   15115.5    6118526.1079  -1572344.7113   -876451.1546     8    20    23 
 AUCK*  15115.5   -5105681.0847    461564.0449  -3782181.6877     2     3     3 
 BAHR*  15115.5    3633908.9580   4425275.5109   2799861.3410     3     1     2 
 BAKO   15115.5   -1836969.0172   6065617.0894   -716257.8098     9    21    17 
 BRMU*  15115.5    2304703.5537  -4874817.1864   3395186.8980     1     0     0 
 CAS1*  15115.5    -901776.1581   2409383.4074  -5816748.4892     3     2     2 
 CHAT*  15115.5   -4590670.9907   -275482.8651  -4404596.7350     2     3     4 
 COCO   15115.5    -741950.1483   6190961.6641  -1337768.4623     5     7    11 
 CRO1   15115.5    2607771.1881  -5488076.7367   1932767.6929     5     3     6 
 DAV1*  15115.5     486854.5575   2285099.3035  -5914955.7393     2     2     3 
 DGAR   15115.9    1916269.6368   6029977.3761   -801720.0835     5    10    33 
 DRAO*  15115.5   -2059164.7334  -3621108.4047   4814432.3435     0     1     0 
 EISL   15113.0   -1884951.5320  -5357595.8950  -2892890.5319     5    17    41 
 FAIR*  15115.5   -2281621.5057  -1453595.8066   5756961.8771     0     0     0 
 FORT*  15115.5    4985386.6381  -3954998.5991   -428426.4703     1     1     0 
 GALA   15115.5     -33795.9395  -6377522.6562    -82120.8851     2    11     7 
 GODE   15115.0    1130773.8305  -4831253.5921   3994200.3978     3     4     6 
 GOL2*  15115.5   -2353614.2280  -4641385.3747   3676976.4215     1     1     0 
 GRAZ*  15115.8    4194423.9170   1162702.6149   4647245.3448     1     0     0 
 GUAM*  15115.5   -5071312.7901   3568363.5241   1488904.3021     1     0     0 
 HARK*  15115.5    5084625.3171   2670366.3048  -2768494.5215     1     1     1 
 HOB2*  15115.5   -3950071.4900   2522415.2173  -4311638.2632     1     1     0 
 IISC   15115.5    1337936.6556   6070317.0918   1427876.6028     2    54    34 
 IRKT*  15115.5    -968332.2719   3794425.4174   5018167.7339     2     1     1 
 KELY   15115.3    1575559.2254  -1941827.9292   5848076.4769     2     3    10 
 KERG*  15115.5    1406337.3247   3918161.1223  -4816167.4051     3     2     2 
 KOKB*  15115.5   -5543838.1517  -2054587.0559   2387809.7840     1     0     0 
 KOSG*  15115.5    3899225.2149    396731.8671   5015078.3704     1     0     0 
 KOUR*  15115.5    3839591.4238  -5059567.5596    579956.9482     3     1     2 
 KSTU   15115.5    -174281.8042   3571333.0248   5264196.0294     2     9     3 
 LHAS*  15113.0    -106937.8154   5549269.5851   3139215.7915     0     1     0 
 LPGS   15115.5    2780102.9880  -4437418.8839  -3629404.5881     5     2     6 
 MAC1*  15115.5   -3464038.5674   1334172.8243  -5169224.3023     2     1     1 
 MAG0   15115.5   -2825810.2273   1581232.9238   5477005.4755     4     4    10 
 MALI*  15115.5    4865366.4280   4110737.4851   -331121.6784     1     3     2 
 MAS1*  15115.5    5439192.2585  -1522055.5728   2953454.7504     3     1     2 
 MATE*  15115.5    4641949.6619   1393045.3419   4133287.3727     1     1     0 
 MAW1   15115.5    1111287.1805   2168911.2839  -5874493.6452     1     4     5 
 MCM4*  15115.5   -1311703.2143    310815.0647  -6213255.1456     2     1     3 
 MDO1*  15115.5   -1329998.7138  -5328393.3946   3236504.1633     1     0     0 
 METS   15116.1    2892570.8787   1311843.3776   5512634.0769     1     2     1 
 MKEA   15115.2   -5464105.1481  -2495166.6908   2148291.0189     4    10    20 
 NLIB*  15115.5    -130934.5242  -4762291.7349   4226854.6373     1     0     0 
 NOUM   15115.8   -5739971.6256   1387563.6226  -2402123.4521     3     6    12 
 NTUS   15114.8   -1508022.7773   6195576.7088    148799.4446     3    18     6 
 NYAL*  15115.3    1202430.5976    252626.6751   6237767.5306     1     1     1 
 OHIG*  15115.5    1525872.5530  -2432481.3138  -5676146.1309     3     2     3 
 ONSA*  15116.5    3370658.6292    711877.0760   5349786.8969     0     0     0 
 PERT*  15114.5   -2368687.1232   4881316.5622  -3341796.0340     2     2     1 
 PETP   15115.3   -3576239.7835   1401003.4634   5075177.4606     1     4    12 
 PIE1*  15115.5   -1640916.8352  -5014781.2132   3575447.1010     1     0     0 
 POL2   15115.5    1239971.4882   4530790.0665   4302578.7577     4     7    16 
 POTS*  15115.5    3800689.7302    882077.3179   5028791.2615     0     0     0 
 REYK   15115.5    2587384.4296  -1043033.5034   5716563.9764     3     7    11 
 RIOG   15116.0    1429907.7613  -3495354.7815  -5122698.7081     4     5     6 
 SANT*  15116.1    1769693.4162  -5044574.1710  -3468321.0482     1     1     1 
 STJO   15115.5    2612631.1756  -3426807.0324   4686757.8098     2     3     7 
 SUTH   15115.5    5041274.8452   1916054.0683  -3397076.0594     3     8    12 
 THU1*  15115.5     538981.3575  -1388714.8040   6181005.1282     1     1     1 
 TID2*  15115.5   -4460996.2472   2682557.0835  -3674443.5775     2     1     1 
 TIXI   15115.5   -1264873.0994   1569455.8004   6031003.4278     3     4     6 
 TSKB*  15115.5   -3957199.2449   3310199.6900   3737711.6540     1     0     0 
 VILL*  15115.5    4849833.7718   -335049.1178   4116014.8615     1     0     0 
 WES2*  15116.1    1492233.3337  -4458089.4900   4296045.9966     1     0     0 
 WHIT   15116.0   -2218337.8724  -2201205.1092   5543057.5400     2     4     7 
 WTZR*  15115.5    4075580.6442    931853.7215   4801568.0665     1     0     0 
 WUHN   15115.5   -2267749.2873   5009154.3086   3221290.7042     4     5     5 
 YAKZ   15115.5   -1915023.3094   2308213.2048   5610224.9596     3     5     9 
 YAR1*  15115.5   -2389025.6871   5043316.9113  -3078530.6016     1     1     0 
 YELL*  15115.5   -1224452.5626  -2689216.1232   5633638.2608     0     0     0 
 ZWEN*  15115.5    2886325.4942   2155998.4561   5245816.1321    10     2     1 
--------------------------------------------------------------------------------
NOTES: * Indicates sites with constrained coordinates.                          
                                                                                
WARNINGS:                                                                       
--------------------------------------------------------------------------------
 093: constrained site ONSA 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 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 HARK 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                                
 094: constrained site GRAZ not in data set                                     
    : constrained site SANT not in data set                                     
    : constrained site WES2 not in data set                                     
    : constrained site ONSA 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 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 LHAS has < 1/2 as many obs as average                                
    : site MALI has < 1/2 as many obs as average                                
    : OHIG residual dN > 2*RMS =       6 mm                                     
 095: constrained site LHAS not in data set                                     
    : constrained site SANT 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 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 ASC1 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 MALI has < 1/2 as many obs as average                                
    : site TSKB has < 1/2 as many obs as average                                
    : STJO residual dN > 2*RMS =       3 mm                                     
 096: constrained site LHAS not in data set                                     
    : constrained site PERT 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 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                                
 097: constrained site LHAS not in data set                                     
    : constrained site NYAL not in data set                                     
    : constrained site PERT 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 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 MALI has < 1/2 as many obs as average                                
    : site MCM4 has < 1/2 as many obs as average                                
    : site TSKB has < 1/2 as many obs as average                                
    : GALA residual dE > 2*RMS =      22 mm                                     
    : GOL2 residual dN > 2*RMS =       1 mm                                     
    : STJO residual dU > 2*RMS =      15 mm                                     
    : SUTH residual dE > 2*RMS =      18 mm                                     
 098: constrained site LHAS 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 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 MALI has < 1/2 as many obs as average                                
    : MCM4 residual dU > 2*RMS =       6 mm                                     
    : YAR1 residual dE > 2*RMS =       1 mm                                     
 099: constrained site LHAS not in data set                                     
    : constrained site PERT 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                                
    : site BAKO has < 1/2 as many obs as average                                
    : site GUAM has < 1/2 as many obs as average                                
    : site MAG0 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                                
    : AUCK residual dN > 2*RMS =       4 mm                                     
    : BRMU residual dN > 2*RMS =       2 mm                                     
    : MAC1 residual dU > 2*RMS =       1 mm                                     
--------------------------------------------------------------------------------