Subject: [IGSREPORT-7025] Wk 1053 NOAA NGS Analysis Report
From: kass <[email-masked]>
To: [email-masked]
Date: Fri, 24 Mar 2000 09:12:37 -0500 (EST)

******************************************************************************
IGS Electronic Report   24 Mar 06:18:19 PST 2000      Message Number 7025
******************************************************************************

Author: NOAA/NGS GPS Analysis Center                                            
                                                                                
******************************************************************************* 
NGS ANALYSIS REPORT GPS WEEK 1053 (Dates:  0 Mar 12 -  0 Mar 18)                
******************************************************************************* 
National Oceanic and Atmospheric Administration (NOAA)                          
National Geodetic Survey (NGS), SSMC-3, N/NGS2                                  
1315 East-West Highway                                                          
Silver Spring, MD, USA  20910                                                   
                                                                                
contacts: William Kass    301-713-3209 ext.164   [email-masked]             
          Robert Dulaney  301-713-3209 ext.168   [email-masked]              
fax:                      301-713-4322                                          

PRODUCTS SENT TO CDDIS:                                                         
------------------------------------------------------------------------------  
 NGS10537.SUM         this text file                                            
 NGS10537.ERP         Earth rotation parameters for GPS Week 1053               
 NGS10537.SNX         weekly GPS coordinate solutions for GPS Wk 1053           
 NGS1053n.SP3         GPS ephemerides for GPS Week 1053, 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        
------------------------------------------------------------------------        
 072     624308         11.9       28          63               37              
 073     663508         11.1       28          66               41              
 074     679707         11.9       28          66               42              
 075     718971         11.2       28          67               42              
 076     688135         11.4       28          67               42              
 077     650771         11.3       28          65               41              
 078     652940         11.3       28          66               41              
------------------------------------------------------------------------        
                                                                                
NUMBER OF OBSERVATIONS BY SATELLITE AND DOY:                                    
----------------------------------------------------------------------          
 PRN        072      073      074      075      076      077      078           
----------------------------------------------------------------------          
  01      25134    24470    25491    27934    25654    25271    27619           
  02      14521    16542    16513    17599    16762    15744    16932           
  03      20649    22916    23045    23874    23790    22286    23942           
  04      24913E   26763E   28143E   30641E   28817E   27461E   24961E          
  05      15483    15697    16473    16183    15942    13453    13085           
  06      16159    16994    17417    19019    17305    16618    17118           
  07      21613    23699    22828    24255    23862    22049    22474           
  08      26360E   29155E   29504E   30726E   29992E   29212E   29271E          
  09      55450E   57868E   59000E   61578E   59704E   55142E   55272E          
  10      42048    47188    48118    49956    48886    49538    41922           
  11      49732E   54504E   56296E   58822E   56792E   50246E   55892E          
  13      37568    39312    41392    40944    39504    36558    37202           
  14      29600    32808    33724    35684    34404    30520    31152           
  15      51788E   55332E   59278E   61864E   59696E   57100E   58652E          
  16      36336    35088    37748    39440    38260    34952    38940           
  17      53926E   54890E   57946E   60410E   59158E   57080E   54298E          
  18      37386    42962    44098    48188    45814    41728    46134           
  19      52512E   54798E   55830E   60138E   56126E   56130E   57238E          
  21      49220    52220    52742    56376    54956    49344    52280           
  22      36894    40170    41046    44852    40500    40066    38324           
  23      44144    48108    47910    50910    49914    45266    46166           
  24      49802E   52080E   54952E   57510E   55056E   52038E   47876E          
  25      56820E   62030E   61622E   68216E   62874E   58668E   57040E          
  26      45572    44246    44738    46932    46632    44126    40000           
  27      52708E   58466E   56890E   61270E   58292E   56332E   58512E          
  29      49890    51374    54412    53768    52154    50446    49454           
  30      50044    51262    52794    57264    54210    51598    48938           
  31      37512    39838    40050    43358    39090    40476    39784           
----------------------------------------------------------------------          
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 HOB2 IISC IRKT KELY KOKB KOSG   
global: KOUR KSTU LHAS LPGS MAC1 MAG0 MALI MAS1 MATE MAW1 MCM4 MDO1 METS MKEA   
global: NLIB NOUM NTUS NYAL OHIG ONSA PERT PETP PIE1 POL2 POTS REYK RIOG SANT   
global: STJO SUTH THU1 TID2 TIXI TSKB VILL WES2 WHIT WTZR WUHN YAKZ YAR1 YELL   
global: ZWEN                                                                    
-----------------------------------------------------------------------------   
                                                                                
NUMBER OF OBSERVATIONS BY SITE AND DOY (AVERAGE PER BASELINE):                  
----------------------------------------------------------------------------    
       ION CODE$                                                                
 SITE   0123456    072      073      074      075      076      077      078    
----------------------------------------------------------------------------    
 ALGO*  3333333  12331    12660    13373    13812    13674    10938    12688    
 AREQ*  5565565   9037     8396    11392    11243    10377     9987     9511    
 ASC1   5666766   3942     4083     4032     3887     4581     4180     3781    
 AUCK*  3233333  12459    12752    12444    12440    12604    12472    12717    
 BAHR*  6656555   8844     5843     7288     7587     7914     7686     7352    
 BAKO   44  444   9780     9177                       8623     4709     8854    
 BRMU*  3333233  10927    10955    11300    12027    12030    11217    10288    
 CAS1*  7685588  11825    12104    11619    12814    12283    11346    10868    
 CHAT*  3233333  12661    13006    12648    12600    12802    12752    13258    
 COCO   5666555  11124    10009    10771    10338    11974    10219    10699    
 CRO1   4454544  10923    10717    11311    11948    11541    10912     9407    
 DAV1*       55                                               13890    17484    
 DGAR    655554            2666     3416     3045     3188     3231     3373    
 DRAO*  4333333  14101    14321    14155    13916    11036    14037    14363    
 EISL   3233334   5239     5427     5720     6596     6372     5820     4914    
 FAIR*  5353333  10952    13336    11757    13444    11455    11066    10582    
 FORT*  4554454   3627     4010     4462     4684     5074     4609     4031    
 GALA   4555566   9261     7683    11831    12632    11275    11360    10235    
 GODE     33343                    13193    13972    13792     6782    13131    
 GOL2*  4333433   9661    10750    11104    10424     7189    10735    10796    
 GRAZ*  22222 2  10555    11253    11503    11842    12058             11492    
 GUAM*  5554655   4122     4058     4566     4123     4373     3057     3359    
 HOB2*  2233333  12015    13479    13047    13158    13002    11592    11320    
 IISC   3655454   2828     3646     2699     3789     3595     2897     3368    
 IRKT*  3333333  10618     9493     9493    10018     9543     8961     8909    
 KELY   55    5   7103     6739                                         6251    
 KOKB*  5445454   6454    10475    11003     9027    10149    10469    10355    
 KOSG*  3333333  13123    13383    13831    14005    13099    13626    12491    
 KOUR*   665666            7256     8446     9603     9201     8760     7883    
 KSTU   3        14214                                                          
 LHAS*  2332222   4539              3831     4774     4486     4378     4185    
 LPGS   5455444  12822    13313    12868    13687    11898    11511    11038    
 MAC1*  5243343  11720    12235    10847    11512    11147    11310    12270    
 MAG0   3333333   8613     8949     9330     9303     8577    10906    10067    
 MALI*  3534444   3066     2942     3675     3268     3676     3482     3566    
 MAS1*  6767766  11419    11554    11805    11422    11080    11244    11438    
 MATE*  4434343   9748    10885    10989    11248    11558    13669    10989    
 MAW1   5454445  14062    15147    14941    15032    15293    14567    18394    
 MCM4*  658556>  10290     9744     8189    10073     9068     8065     4546    
 MDO1*  2222222   7507     8421     9952    10271    10394     9978     9849    
 METS   33 3333  12932    12782             13002    12766    12676    12269    
 MKEA   3333333   5634     8703     9316     7689     8735     8781     8682    
 NLIB*  2322222   9655    10216    10651    11059    11176    10926    10401    
 NOUM   4444443  12111    12393    12194    12147    12432    11970    11948    
 NTUS   5 55455   5883              7569     5443     8202     8342     7042    
 NYAL*  5675578  12165    13164    12912    13581    13149    12057    11923    
 OHIG*   322333            9656    13611    12834    10940    10981    10406    
 ONSA*  333333   14219    13641    14254    14031    14364    13501             
 PERT*   222222           11562    11863    12392    11982    11519    11623    
 PETP   3333333   8850     9196     9323     9384     8431     9867     9936    
 PIE1*  2222222   9448    10626    10848    10929     9559    10603    10626    
 POL2   2222222   8446     9257     7821     8030     8448     8586     8096    
 POTS*  3333333  13912    14478    14125    14566    14513    14157    13845    
 REYK   4343223  12098    11799    11572    11915    11283    10568     9975    
 RIOG   3333     12524    11238    13057    12814                               
 SANT*  6665666  13202     9903    11083    13725    13063    12285    12208    
 STJO   3333333  12515    13141    13108    12573    12227    12613    12962    
 SUTH   2222222   2429     2237     3239     2539     3034     2929     3098    
 THU1*  6685688  10122     9941    11264    13021    11511     8730     8837    
 TID2*  2233333  13386    12078    13466    13547    13719    12910    11190    
 TIXI   4364345  10803    12937    12490    12883    12750    12943    12539    
 TSKB*  22222     6973     7125     7459     7483     7021                      
 VILL*   333333           12130    12085    12005    11909    11722    12020    
 WES2*  3333333  12335    12342    13028    13278    12923    12736    12135    
 WHIT   4232222   9616    12235    11740    13145    11769    12141    11691    
 WTZR*   333333           13542    14972    14909    14726    14328    14952    
 WUHN   3332333   7137     6904     7399     7764     7539     5133     5413    
 YAKZ   33333    11790    11104    11256    10976    10470                      
 YAR1*  2222222   9599    10757    10440    10289    10067     9013     9899    
 YELL*  5464344  12178    13014    11964    12932    12293    11220    11763    
 ZWEN*  3333333  13001    12180    12871    12012    12224    12022    11226    
----------------------------------------------------------------------------    
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*  15094.5     918129.4546  -4346071.2512   4561977.8133     1     0     0 
 AREQ*  15094.5    1942826.7736  -5804070.2603  -1796893.9561     2     1     1 
 ASC1   15094.5    6118526.0940  -1572344.7093   -876451.1653     4    12    20 
 AUCK*  15094.5   -5105681.0786    461564.0449  -3782181.6827     2     1     3 
 BAHR*  15094.5    3633908.9637   4425275.5094   2799861.3393     2     1     1 
 BAKO   15094.7   -1836969.0193   6065617.0713   -716257.8060     3    18    25 
 BRMU*  15094.5    2304703.5556  -4874817.1858   3395186.8987     1     0     0 
 CAS1*  15094.5    -901776.1593   2409383.4065  -5816748.4846     2     1     2 
 CHAT*  15094.5   -4590670.9924   -275482.8689  -4404596.7354     2     2     1 
 COCO   15094.5    -741950.1491   6190961.6449  -1337768.4539     2     8    11 
 CRO1   15094.5    2607771.2003  -5488076.7535   1932767.7027     1     5    14 
 DAV1*  15097.0     486854.5543   2285099.2993  -5914955.7386     0     0     0 
 DGAR   15095.0    1916269.5808   6029977.4264   -801720.0916     4    41    38 
 DRAO*  15094.5   -2059164.7329  -3621108.4044   4814432.3432     1     1     0 
 EISL   15094.5   -1884951.5420  -5357595.9474  -2892890.5619     6    13    29 
 FAIR*  15094.5   -2281621.5040  -1453595.8064   5756961.8779     1     0     0 
 FORT*  15094.5    4985386.6385  -3954998.5987   -428426.4701     1     1     0 
 GALA   15094.5     -33795.9472  -6377522.6384    -82120.8831     5    11     5 
 GODE   15095.5    1130773.8270  -4831253.5803   3994200.3914     1     3     2 
 GOL2*  15094.5   -2353614.2282  -4641385.3745   3676976.4215     1     1     0 
 GRAZ*  15094.2    4194423.9189   1162702.6140   4647245.3430     1     0     0 
 GUAM*  15094.5   -5071312.7906   3568363.5235   1488904.3019     1     0     0 
 HOB2*  15094.5   -3950071.4870   2522415.2189  -4311638.2648     2     1     1 
 IISC   15094.5    1337936.6791   6070317.1325   1427876.6104    10    22    22 
 IRKT*  15094.5    -968332.2757   3794425.4185   5018167.7304     1     1     1 
 KELY   15093.8    1575559.2209  -1941827.9402   5848076.4976     1     3     4 
 KOKB*  15094.5   -5543838.1505  -2054587.0585   2387809.7839     1     1     0 
 KOSG*  15094.5    3899225.2159    396731.8666   5015078.3692     1     0     0 
 KOUR*  15095.0    3839591.4258  -5059567.5577    579956.9493     1     2     1 
 KSTU   15091.5    -174281.7882   3571333.0312   5264196.0284     0     0     0 
 LHAS*  15094.8    -106937.8116   5549269.5864   3139215.7909     1     1     0 
 LPGS   15094.5    2780102.9934  -4437418.8872  -3629404.5930     3     3     5 
 MAC1*  15094.5   -3464038.5655   1334172.8246  -5169224.3025     1     1     1 
 MAG0   15094.5   -2825810.2238   1581232.9217   5477005.4802     4     4     7 
 MALI*  15094.5    4865366.4247   4110737.4919   -331121.6763     1     3     3 
 MAS1*  15094.5    5439192.2550  -1522055.5746   2953454.7492     1     1     1 
 MATE*  15094.5    4641949.6641   1393045.3407   4133287.3711     1     0     0 
 MAW1   15094.5    1111287.1722   2168911.2729  -5874493.6379     2     4     3 
 MCM4*  15094.5   -1311703.2160    310815.0658  -6213255.1482     2     1     3 
 MDO1*  15094.5   -1329998.7132  -5328393.3950   3236504.1632     1     0     0 
 METS   15094.7    2892570.8821   1311843.3819   5512634.0700     1     3     4 
 MKEA   15094.5   -5464105.1511  -2495166.6993   2148291.0243     2     9     9 
 NLIB*  15094.5    -130934.5238  -4762291.7350   4226854.6370     1     0     0 
 NOUM   15094.5   -5739971.5907   1387563.6200  -2402123.4386     3     3     7 
 NTUS   15094.8   -1508022.7995   6195576.6674    148799.4447     2    16    20 
 NYAL*  15094.5    1202430.6008    252626.6754   6237767.5290     1     1     1 
 OHIG*  15095.0    1525872.5535  -2432481.3145  -5676146.1299     3     1     2 
 ONSA*  15094.0    3370658.6313    711877.0767   5349786.8949     0     0     0 
 PERT*  15095.0   -2368687.1222   4881316.5602  -3341796.0350     1     1     0 
 PETP   15094.5   -3576239.7841   1401003.4598   5075177.4648     6     4     6 
 PIE1*  15094.5   -1640916.8343  -5014781.2143   3575447.1008     1     0     0 
 POL2   15094.5    1239971.5112   4530790.0889   4302578.7732     1     5     7 
 POTS*  15094.5    3800689.7325    882077.3180   5028791.2595     1     1     1 
 REYK   15094.5    2587384.4316  -1043033.5002   5716563.9863     2     3    12 
 RIOG   15093.0    1429907.7607  -3495354.7800  -5122698.7038     4     4     7 
 SANT*  15094.5    1769693.4147  -5044574.1697  -3468321.0486     1     1     1 
 STJO   15094.5    2612631.1782  -3426807.0345   4686757.8060     2     2     4 
 SUTH   15094.5    5041274.8157   1916054.0858  -3397076.0531    18    21    40 
 THU1*  15094.5     538981.3578  -1388714.8036   6181005.1281     2     1     1 
 TID2*  15094.5   -4460996.2453   2682557.0847  -3674443.5802     2     1     0 
 TIXI   15094.5   -1264873.0919   1569455.8132   6031003.4313     2     2     6 
 TSKB*  15093.5   -3957199.2435   3310199.6889   3737711.6559     1     1     0 
 VILL*  15095.0    4849833.7730   -335049.1200   4116014.8606     0     0     0 
 WES2*  15094.5    1492233.3348  -4458089.4896   4296045.9960     1     0     1 
 WHIT   15094.5   -2218337.8733  -2201205.1134   5543057.5458     1     2     7 
 WTZR*  15095.0    4075580.6464    931853.7210   4801568.0651     0     0     0 
 WUHN   15094.5   -2267749.2515   5009154.2887   3221290.6966     4     6    12 
 YAKZ   15093.5   -1915023.3021   2308213.2057   5610224.9606     2     1     6 
 YAR1*  15094.5   -2389025.6842   5043316.9096  -3078530.6054     1     0     0 
 YELL*  15094.5   -1224452.5609  -2689216.1229   5633638.2613     2     0     1 
 ZWEN*  15094.5    2886325.4801   2155998.4461   5245816.1526     1     2     1 
--------------------------------------------------------------------------------
NOTES: * Indicates sites with constrained coordinates.                          
                                                                                
WARNINGS:                                                                       
--------------------------------------------------------------------------------
 072: constrained site KOUR not in data set                                     
    : constrained site OHIG not in data set                                     
    : constrained site PERT not in data set                                     
    : constrained site VILL not in data set                                     
    : constrained site WTZR not in data set                                     
    : constrained site DAV1 not in data set                                     
    : PRN 01    has < 2/3 as many obs as average                                
    : PRN 02    has < 2/3 as many obs as average                                
    : PRN 03    has < 2/3 as many obs as average                                
    : PRN 04    has < 2/3 as many obs as average                                
    : PRN 05    has < 2/3 as many obs as average                                
    : PRN 06    has < 2/3 as many obs as average                                
    : PRN 07    has < 2/3 as many obs as average                                
    : site 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 SUTH has < 1/2 as many obs as average                                
 073: constrained site LHAS not in data set                                     
    : constrained site DAV1 not in data set                                     
    : PRN 01    has < 2/3 as many obs as average                                
    : PRN 02    has < 2/3 as many obs as average                                
    : PRN 03    has < 2/3 as many obs as average                                
    : PRN 04    has < 2/3 as many obs as average                                
    : PRN 05    has < 2/3 as many obs as average                                
    : PRN 06    has < 2/3 as many obs as average                                
    : PRN 07    has < 2/3 as many obs as average                                
    : site 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 IISC has < 1/2 as many obs as average                                
    : site MALI has < 1/2 as many obs as average                                
    : site SUTH has < 1/2 as many obs as average                                
 074: constrained site DAV1 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 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 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 SUTH has < 1/2 as many obs as average                                
    : BAHR residual dN > 2*RMS =       3 mm                                     
    : KOKB residual dE > 2*RMS =       1 mm                                     
    : KOSG residual dN > 2*RMS =       2 mm                                     
    : LPGS residual dN > 2*RMS =       5 mm                                     
 075: constrained site DAV1 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 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 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 SUTH has < 1/2 as many obs as average                                
 076: constrained site DAV1 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 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 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 SUTH has < 1/2 as many obs as average                                
    : ALGO residual dN > 2*RMS =       2 mm                                     
    : GOL2 residual dE > 2*RMS =       1 mm                                     
    : HOB2 residual dU > 2*RMS =       1 mm                                     
 077: constrained site GRAZ 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 BAKO 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 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 SUTH has < 1/2 as many obs as average                                
    : EISL residual dU > 2*RMS =      60 mm                                     
    : IISC residual dE > 2*RMS =      47 mm                                     
    : IISC residual dU > 2*RMS =      46 mm                                     
    : TID2 residual dN > 2*RMS =       3 mm                                     
 078: constrained site ONSA not in data set                                     
    : constrained site TSKB 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 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 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                                
    : site SUTH has < 1/2 as many obs as average                                
    : MAG0 residual dN > 2*RMS =       9 mm                                     
    : PETP residual dN > 2*RMS =      12 mm                                     
    : YELL residual dN > 2*RMS =       4 mm                                     
--------------------------------------------------------------------------------