Subject: [IGSREPORT-5672] Wk 0991 NOAA NGS Analysis Report
From: NOAA/NGS GPS Analysis Center
Date: Tue, 19 Jan 1999 6:19:11 PST

******************************************************************************
IGS Electronic Report    Tue Jan 19  6:19:11 PST 1999      Message Number 5672
******************************************************************************

Author: NOAA/NGS GPS Analysis Center                                            
Subject: Wk 0991 NOAA NGS Analysis Report

******************************************************************************* 
NGS ANALYSIS REPORT GPS WEEK 0991 (Dates: 99 Jan 03 - 99 Jan 09)                
******************************************************************************* 
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:                                                         
------------------------------------------------------------------------------  
 NGS09917.SUM         this text file                                            
 NGS09917.ERP         Earth rotation parameters for GPS Week 0991               
 NGS09917.SNX         weekly GPS coordinate solutions for GPS Wk 0991           
 NGS0991n.SP3         GPS ephemerides for GPS Week 0991, SP3 format (n=0..6)    
------------------------------------------------------------------------------  
                                                                                
SOLUTION CHARACTERISTICS:                                                       
------------------------------------------------------------------------------  
 Software             page5 developed at NOAA                                   
 Terr. Ref. Frame     nominally, ITRF96 at current epoch                        
 Observables          double-differenced carrier phase at 30-sec. intervals     
 Arc Length           24 hours                                                  
 Elevation Cutoff     15 degrees                                                
 Reference            file://igscb.jpl.nasa.gov/igscb/center/analysis/noaa.acn  
------------------------------------------------------------------------------  
                                                                                
STATISTICAL SUMMARY OF DAILY SOLUTIONS:                                         
------------------------------------------------------------------------        
          NUMBER      POST-FIT                                                  
 DOY   OBSERVATIONS   RMS (MM)   NO. SAT.   NO. SITES   NO. CONST. SITES        
------------------------------------------------------------------------        
 003     626323         10.3       27          62               39              
 004     597027         11.0       27          62               37              
 005     607894         10.5       27          62               39              
 006     636964         10.6       27          63               38              
 007     639640         10.5       27          62               38              
 008     628590         10.7       27          61               36              
 009     649934         10.8       27          63               38              
------------------------------------------------------------------------        
                                                                                
NUMBER OF OBSERVATIONS BY SATELLITE AND DOY:                                    
----------------------------------------------------------------------          
 PRN        003      004      005      006      007      008      009           
----------------------------------------------------------------------          
  01      24074    21390    22795    25087    26528    26745    29224           
  02      18342    17710    16370    18006    19319    18495    20973           
  03      24014E   22885E   22836E   23875E   26472E   25703E   26320E          
  04      18626    17132    17270    18454    16806    18412    21020           
  05      22163    20029    22366    23572    24947    22782    22580           
  06      28181E   28443E   29638E   29961E   29292E   28783E   29423E          
  07      29575E   29445E   28077E   30185E   30560E   28629E   30170E          
  08      22968    23426    23761    24813    25206    24750    25269           
  09      45248    44240    44738    45210    43988    42842    45608           
  10      63222E   62810E   61138E   64874E   45868E   47830    52148           
  13      47304    46602    43268    48356    56062    53812    50130           
  14      58242E   52570E   55074E   58024E   59104E   59520E   35950E          
  15      32072    29782    32340    34822    33448    35300    41962           
  16      58308E   54456E   55258E   57304E   59898E   56152E   60868E          
  17      32830    37530    33746    34216    34598    32752    35114           
  18      41816    38116    37626    42524    41342    40804    49420           
  19      40812    37226    40166    36830    39942    40580    37984           
  21      51786E   46416E   50860E   55356E   37328E   37840    43220           
  22      27856    28432    29352    30128    33812    29860    36008           
  23      57310E   51260E   55796E   55730E   61168E   61212E   53490E          
  24      48702    45782    44746    48708    50382    48206    50916           
  25      42330    40874    43684    43036    45360    43736    47314           
  26      44274    33202    43290    42700    43140    44786    45504           
  27      50202    51266    48536    53420    51244    51376    54268           
  29      40114    41464    38034    38580    44166    41244    43296           
  30      42606    43426    45344    44926    46784    45172    49430           
  31      51726E   47680E   46566E   51278E   53386E   55558E   57280E          
----------------------------------------------------------------------          
NOTE: E = satellite eclipsing during day                                        
                                                                                
GLOBAL LIST OF SITES USED DURING WEEK:                                          
-----------------------------------------------------------------------------   
global: ALGO AREQ ASC1 AUCK BAHR BAKO BOGT BRMU CAS1 CHAT CRO1 DAV1 DGAR DRAO   
global: EISL FAIR FORT GALA GODE GOLD GRAZ GUAM HOB2 IRKT KELY KERG KOKB KOSG   
global: KOUR KSTU KWJ1 LPGS MAC1 MADR MALI MASP MATE MAW1 MCM4 MDO1 METS NLIB   
global: NTUS NYAL ONSA PERT PIE1 POTS REYK SANT SHAO STJO SUTH TAEJ THU1 TIDB   
global: TIXI TROM TSKB VILL WES2 WHIT WTZR WUHN YAKA YAR1 YELL ZWEN             
-----------------------------------------------------------------------------   
                                                                                
NUMBER OF OBSERVATIONS BY SITE AND DOY (AVERAGE PER BASELINE):                  
----------------------------------------------------------------------------    
       ION CODE$                                                                
 SITE   0123456    003      004      005      006      007      008      009    
----------------------------------------------------------------------------    
 ALGO*  1222111  12047    12920    12214    13385    13432    14046    14045    
 AREQ*  3223233   4478     5114     6028     5929     5766     5938     6452    
 ASC1   2222222   3161     2977     3348     3292     3094     3852     5453    
 AUCK   2322222  11027    10542    10606    10762    11061    11296    11351    
 BAHR   3333332   8829     8587     8979     9330     8832     9154     9434    
 BAKO   22 2222   9225    11501              8752    12053     9568     9394    
 BOGT   3         3642                                                          
 BRMU*  2222222  11847    11669    11000    11566    10265    11227    11695    
 CAS1    635564            4701     7092     5211     7056     5253     7357    
 CHAT   2222222  11287    10574    11047    10957    11155    10807    10541    
 CRO1   2222211   7284     7652     6955     7782     7439     9433    10529    
 DAV1*  4644455   9678     6683     9618     7466     8299     8226     8581    
 DGAR    222222            2543     4657     3374     3655     3437     4636    
 DRAO*  1211111  13428    12528    12018    13383    13387    13192    13244    
 EISL   2232222   6226     5605     4063     7080     6514     4537     5986    
 FAIR*  1222221  13756    13180    12003    13607    14161    13708    14271    
 FORT*  3433233   3899     3862     4357     4325              5006     5420    
 GALA   3222222   4300     4946     5134     5314     5045     5032     5332    
 GODE      2221                             13918    14160    13288    13170    
 GOLD*  1111111  11633    12747    11486    11581    11696    11591    13488    
 GRAZ*  1121111  14067    13981    13830    13968    14298    14301    14219    
 GUAM*  2222222   6380     5813     4618     6850     5059     7301     6910    
 HOB2   2222222  12759    12438    11358    12489    12818    12774    12648    
 IRKT*  1111111  11931    11215    11195    11285    11241    11490    11662    
 KELY   3644433  12588     9640    10070    10968    10588     9684    11690    
 KERG*  222212   10243     8274     8163    11194    11249    10302             
 KOKB*  2222222   7956     8006     6682     7646     8181     8542     8940    
 KOSG*  1221111  13439    12831    11055     5542     9499    13321    13393    
 KOUR*  44432 2   4295     4263     4688     5005     4915              4257    
 KSTU   1        13094                                                          
 KWJ1*  2222222   5721     4830     4102     6478     3222     5909     5885    
 LPGS    23                6610     7538                                        
 MAC1*  2332232  11116    10150    10401    10120    10558     8489    10408    
 MADR*  1 11111   7546             14145    13738    12427    12444    10677    
 MALI*  2222222   7397     5419     6026     6455     6044     6484     7098    
 MASP*  2222222  11975    11096    11450    12307     7397     8295    11868    
 MATE*  1121111  12046    12026    12131    12336    12213    12498    12354    
 MAW1   3533344  12127     8867    11111    11383    11358    10696    11722    
 MCM4   4555554   8215     6028     7781     6488     7344     6073     7798    
 MDO1*  1111111  11468    12152    10973    13141    13106    12936    10697    
 METS   1111111  11501    11883    11764    11695    12604    11945    12444    
 NLIB*  2212111   9633    11396    10236    12676    12693    12397    12529    
 NTUS   22 2222   3999     4357              4362     5489     5350     5022    
 NYAL*  3434444  12120    10160    10781    10138    11399    10397    11845    
 ONSA*  1111111  12715    12866    12257    12026    13219    13709    13462    
 PERT*    221 2                    11052    12422    13984              6831    
 PIE1*  1111111  13517    12955    11674    13457    13458    13223    13631    
 POTS*  121 111  13790    13123    12675             12386    13636    14306    
 REYK   1222222  11864    11619    10159    10185    10683    12037     4410    
 SANT*  2222122   3745     6643     5066     7149     7133     5527     6872    
 SHAO*  2222222  10273    11924    12137    10424     9120    11145    10811    
 STJO   1221122  12659    12813    12627    12819    11333    11434    10553    
 SUTH   2222212   7304     7101     6414     7910     7105     8317     8331    
 TAEJ    322211           11826    12391    12915    12508    13404    12786    
 THU1*  3434443  12002    10267     9869    10623    10916    10160    10021    
 TIDB*  2222222  11422    11007    11643    11316    11634    11807    11783    
 TIXI   1322232  10408     9238     9132     9666     9769     9504    10232    
 TROM*  1323232  12177    10542    11702    11044    12140    10926    12140    
 TSKB*  2211111   9245     9548     9268    10290    10064    11184    10554    
 VILL*  12111 1  10859    11752    12631    12795    13397              7490    
 WES2*  1222221  13303    13251    13170    13486    12697    13198    12868    
 WHIT   1212121  13915    11425    10625    13502    14081    13263    12327    
 WTZR*  1111111  13975    13832    13765    10596    13575    14199    14067    
 WUHN   2222 22  12295    11991    12069    12201             12540    12436    
 YAKA   1111111  11994    12056    11894    11820    12256    12309    12260    
 YAR1*  2322122   8680     8479    14370    10090    10521     9348     8556    
 YELL*  2333243  13652    12604    12172    13127    13379    12393    13241    
 ZWEN*  1        10178                                                          
----------------------------------------------------------------------------    
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*  51184.5     918129.4769  -4346071.2367   4561977.8180     3     1     1 
 AREQ*  51184.5    1942826.7534  -5804070.2441  -1796893.9536     1     1     1 
 ASC1   51184.5    6118526.0793  -1572344.6903   -876451.1546     8    34    22 
 AUCK   51184.5   -5105681.0600    461564.0356  -3782181.6925     3     5     7 
 BAHR   51184.5    3633909.0062   4425275.4894   2799861.3067     5     6    11 
 BAKO   51184.7   -1836969.4714   6065618.6884   -716257.9795     3     8     8 
 BOGT   51181.5    1744399.0772  -6116037.6819    512731.6327     0     0     0 
 BRMU*  51184.5    2304703.5701  -4874817.1781   3395186.9048     1     1     1 
 CAS1   51185.0    -901776.1610   2409383.3843  -5816748.4280     2     6     8 
 CHAT   51184.5   -4590670.9758   -275482.9222  -4404596.7371     4     4     5 
 CRO1   51184.5    2607771.1827  -5488076.7596   1932767.7034     3     9    16 
 DAV1*  51184.5     486854.5545   2285099.2849  -5914955.7074     2     3     2 
 DGAR   51185.0    1916269.7069   6029977.3097   -801720.1304     7    11    37 
 DRAO*  51184.5   -2059164.7048  -3621108.3951   4814432.3652     1     1     2 
 EISL   51184.5   -1884951.6080  -5357595.9043  -2892890.5261     5    11    13 
 FAIR*  51184.5   -2281621.4707  -1453595.7963   5756961.9019     1     1     1 
 FORT*  51184.3    4985386.6364  -3954998.5851   -428426.4706     2     2     1 
 GALA   51184.5     -33796.0240  -6377522.6386    -82120.8801     6    12    12 
 GODE   51186.0    1130773.8500  -4831253.5752   3994200.4054     2     2     4 
 GOLD*  51184.5   -2353614.2001  -4641385.3731   3676976.4401     1     1     3 
 GRAZ*  51184.5    4194423.9406   1162702.5962   4647245.3375     1     1     1 
 GUAM*  51184.5   -5071312.7835   3568363.5135   1488904.3204     2     3     1 
 HOB2   51184.5   -3950071.4490   2522415.1914  -4311638.2843     4     4     5 
 IRKT*  51184.5    -968332.2332   3794425.4146   5018167.7372     2     2     1 
 KELY   51184.5    1575559.2476  -1941827.9281   5848076.5058     3     2     7 
 KERG*  51184.0    1406337.3335   3918161.0967  -4816167.3856     3     3     2 
 KOKB*  51184.5   -5543838.1240  -2054587.1297   2387809.7617     1     1     0 
 KOSG*  51184.5    3899225.2316    396731.8514   5015078.3641     1     1     1 
 KOUR*  51184.2    3839591.4257  -5059567.5387    579956.9472     3     4     6 
 KSTU   51181.5    -174281.7606   3571333.0193   5264196.0296     0     0     0 
 KWJ1*  51184.5   -6160880.9631   1339883.1016    960810.5155     3     2     1 
 LPGS   51183.0    2780102.9763  -4437418.8596  -3629404.5721     4     1    20 
 MAC1*  51184.5   -3464038.5484   1334172.7877  -5169224.2926     2     3     2 
 MADR*  51184.8    4849202.4630   -360329.0605   4114913.1200     2     2     1 
 MALI*  51184.5    4865366.4621   4110737.4876   -331121.6865     5     4     4 
 MASP*  51184.5    5439192.2630  -1522055.5921   2953454.7468     2     3     1 
 MATE*  51184.5    4641949.6827   1393045.3188   4133287.3561     1     1     0 
 MAW1   51184.5    1111287.1754   2168911.2636  -5874493.6178     2     6     4 
 MCM4   51184.5   -1311703.2444    310815.0652  -6213255.1365     6     6    10 
 MDO1*  51184.5   -1329998.6934  -5328393.3923   3236504.1872     2     1     1 
 METS   51184.5    2892570.9050   1311843.3647   5512634.0646     1     3     5 
 NLIB*  51184.5    -130934.5018  -4762291.7257   4226854.6542     2     0     2 
 NTUS   51184.7   -1508022.7488   6195576.6768    148799.4731     5    10    25 
 NYAL*  51184.5    1202430.6177    252626.6698   6237767.5226     1     1     1 
 ONSA*  51184.5    3370658.6446    711877.0602   5349786.8829     1     0     1 
 PERT*  51185.2   -2368687.0731   4881316.5364  -3341796.0758     1     1     2 
 PIE1*  51184.5   -1640916.8110  -5014781.2058   3575447.1235     1     1     1 
 POTS*  51184.5    3800689.7551    882077.3014   5028791.2616     1     1     0 
 REYK   51184.5    2587384.4616  -1043033.4995   5716563.9905     5     2    14 
 SANT*  51184.5    1769693.3856  -5044574.1614  -3468321.0444     3     1     1 
 SHAO*  51184.5   -2831733.3217   4675666.0271   3275369.4903     2     3     3 
 STJO   51184.5    2612631.2064  -3426807.0240   4686757.8199     3     5     8 
 SUTH   51184.5    5041274.7986   1916054.0187  -3397076.0335     7    18    17 
 TAEJ   51185.0   -3120422.9715   4086355.4357   3761769.5964     1     2     4 
 THU1*  51184.5     538981.3869  -1388714.7922   6181005.1309     2     2     3 
 TIDB*  51184.5   -4460996.2120   2682557.0719  -3674443.6065     1     2     2 
 TIXI   51184.5   -1264873.0730   1569455.8008   6031003.4468     2     3     5 
 TROM*  51184.5    2102940.3121    721569.4016   5958192.1139     2     1     1 
 TSKB*  51184.5   -3957199.2305   3310199.6860   3737711.6889     2     2     3 
 VILL*  51184.2    4849833.7832   -335049.1433   4116014.8570     2     2     1 
 WES2*  51184.5    1492233.3579  -4458089.4751   4296046.0024     1     1     1 
 WHIT   51184.5   -2218337.8300  -2201205.1102   5543057.5599     2     2     6 
 WTZR*  51184.5    4075580.6645    931853.7039   4801568.0601     1     1     0 
 WUHN   51184.3   -2267749.2102   5009154.3011   3221290.7200     2     3     7 
 YAKA   51184.5   -1915023.2745   2308213.2195   5610224.9771     2     2     3 
 YAR1*  51184.5   -2389025.6368   5043316.8835  -3078530.6412     2     1     1 
 YELL*  51184.5   -1224452.5330  -2689216.1102   5633638.2733     1     1     1 
 ZWEN*  51181.5    2886325.5146   2155998.4291   5245816.1423     0     0     0 
--------------------------------------------------------------------------------
NOTES: * Indicates sites with constrained coordinates.                          
                                                                                
WARNINGS:                                                                       
--------------------------------------------------------------------------------
 003: 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 08    has < 2/3 as many obs as average                                
    : site AREQ has < 1/2 as many obs as average                                
    : site ASC1 has < 1/2 as many obs as average                                
    : site BOGT has < 1/2 as many obs as average                                
    : site FORT has < 1/2 as many obs as average                                
    : site GALA has < 1/2 as many obs as average                                
    : site KOUR has < 1/2 as many obs as average                                
    : site NTUS has < 1/2 as many obs as average                                
    : site SANT has < 1/2 as many obs as average                                
    : GOLD residual dU > 2*RMS =       7 mm                                     
    : KERG residual dE > 2*RMS =       6 mm                                     
    : NTUS residual dE > 2*RMS =      21 mm                                     
    : PIE1 residual dN > 2*RMS =       3 mm                                     
 004: constrained site MADR not in data set                                     
    : constrained site ZWEN 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 08    has < 2/3 as many obs as average                                
    : site ASC1 has < 1/2 as many obs as average                                
    : site CAS1 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 KOUR has < 1/2 as many obs as average                                
    : site NTUS has < 1/2 as many obs as average                                
    : ALGO residual dU > 2*RMS =       2 mm                                     
    : BAHR residual dN > 2*RMS =      10 mm                                     
    : GALA residual dE > 2*RMS =      24 mm                                     
    : YELL residual dN > 2*RMS =       2 mm                                     
 005: constrained site ZWEN 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 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 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 KWJ1 has < 1/2 as many obs as average                                
    : IRKT residual dN > 2*RMS =       3 mm                                     
    : THU1 residual dN > 2*RMS =       3 mm                                     
 006: constrained site POTS not in data set                                     
    : constrained site ZWEN 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 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 FORT has < 1/2 as many obs as average                                
    : site KOUR has < 1/2 as many obs as average                                
    : site NTUS has < 1/2 as many obs as average                                
    : SHAO residual dU > 2*RMS =       7 mm                                     
    : WUHN residual dU > 2*RMS =      15 mm                                     
 007: constrained site FORT not in data set                                     
    : constrained site ZWEN 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 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 GALA has < 1/2 as many obs as average                                
    : site GUAM has < 1/2 as many obs as average                                
    : site KOUR has < 1/2 as many obs as average                                
    : site KWJ1 has < 1/2 as many obs as average                                
    : TSKB residual dE > 2*RMS =       5 mm                                     
    : YAKA residual dE > 2*RMS =       3 mm                                     
 008: constrained site KOUR not in data set                                     
    : constrained site VILL not in data set                                     
    : constrained site ZWEN not in data set                                     
    : constrained site PERT not in data set                                     
    : PRN 02    has < 2/3 as many obs as average                                
    : PRN 03    has < 2/3 as many obs as average                                
    : PRN 04    has < 2/3 as many obs as average                                
    : PRN 05    has < 2/3 as many obs as average                                
    : PRN 08    has < 2/3 as many obs as average                                
    : site 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 GALA has < 1/2 as many obs as average                                
    : FORT residual dU > 2*RMS =       3 mm                                     
    : HOB2 residual dN > 2*RMS =       7 mm                                     
    : KOKB residual dN > 2*RMS =       3 mm                                     
    : STJO residual dE > 2*RMS =      10 mm                                     
 009: constrained site KERG not in data set                                     
    : constrained site ZWEN not in data set                                     
    : PRN 02    has < 2/3 as many obs as average                                
    : PRN 03    has < 2/3 as many obs as average                                
    : PRN 04    has < 2/3 as many obs as average                                
    : PRN 05    has < 2/3 as many obs as average                                
    : PRN 08    has < 2/3 as many obs as average                                
    : site DGAR has < 1/2 as many obs as average                                
    : site KOUR has < 1/2 as many obs as average                                
    : site NTUS has < 1/2 as many obs as average                                
    : site REYK has < 1/2 as many obs as average                                
--------------------------------------------------------------------------------

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