USNO Analysis Report for R1875 ($19JAN02XA) 
       This report is a contributed analysis report that does not correspond to 
       the database maintained by the IVS Data Centers for this session.  
   (Analyzed by Megan Johnson, Naval Observatory.
    Spoolfile source: interactive nuSolve analysis.) 

Problems: KATH12M had DBBC drift throughout observations making ambiguity resolution
very challenging.
MATERA did not participate due to brake problems.
NYALES20 missed 7 hours due to strong winds.
YARRA12M had 2 clock breaks at ~02:00 and ~11:30.
SEJONG required baseline clock offsets on most baselines.

Parameterization comments: None. 

Other comments: None. 

-----------------------------------------

Session Statistics 

  Observations:     7426 scheduled 
                    4908 correlated (in database)
                    4713 recoverable (usable)
                    4596 used
  Session fit:        34.105 ps

-----------------------------------------

Station Performance 

                           Number of Observations

                    Scheduled   Recoverable*        Used   % of scheduled
                                                              obs used

  HART15M                1104           757          729        66.0%
  ISHIOKA                1718          1386         1362        79.3%
  KATH12M                 987           653          617        62.5%
  KOKEE                  1337          1066         1043        78.0%
  MATERA                 1832      NOT CORR     NOT CORR         0.0%
  NYALES20               1871          1073         1043        55.7%
  ONSALA60               1832          1288         1266        69.1%
  SEJONG                 1338          1093         1072        80.1%
  WETTZ13N               1892          1336         1304        68.9%
  YARRA12M                941           774          756        80.3%
  ---------------   ---------   -----------    ---------       ------
  Station Total**        7426          4713         4596        61.9%

  * Recoverable: can be included in the solution. 
  ** Total includes distinct observations only.

  MISSED:    Station was scheduled, but it did not observe.
  NOT CORR:  Station was scheduled but not correlated.
  NOT USED:  Usable data was generated for this station,
             but the analyst rejected it all.

-----------------------------------------

Source Performance 

                    Number of Observations

                Scheduled  Correlated*    Used      % of scheduled
                                                       obs used

  2302+232              4           4        2           50.0%
  2232-488              6           5        5           83.3%
  NGC1052               6           4        1           16.7%
  1842+681             87          47       47           54.0%
  0507+179             57          36       34           59.6%
  0919-260             28          17       10           35.7%
  OK290                88          50       47           53.4%
  1145-071             41          26       25           61.0%
  1252+119             26          22       18           69.2%
  0059+581            700         440      435           62.1%
  0104-408             50          41       39           78.0%
  0119+041             36          18       18           50.0%
  0229+131            117          69       60           51.3%
  0530-727             13          13       13          100.0%
  0727-115            280         232      214           76.4%
  0823+033             88          50       49           55.7%
  OJ287               380         268      261           68.7%
  0955+476            438         294      284           64.8%
  1034-293             32          25       19           59.4%
  1057-797             94          81       69           73.4%
  1124-186             38          29       29           76.3%
  1128+385            268         175      167           62.3%
  1144-379            116          96       69           59.5%
  1300+580             40          16       16           40.0%
  1334-127            150         106      103           68.7%
  1424-418             73          62       58           79.5%
  1519-273             10           3        3           30.0%
  1741-038            195         135      131           67.2%
  1921-293             32          25       23           71.9%
  1954-388             13           7        6           46.2%
  2052-474             27          17       16           59.3%
  3C446               239         179      159           66.5%
  2255-282             42          30       24           57.1%
  2318+049            137          91       82           59.9%
  0346-279              6           6        3           50.0%
  0420-014             80          53       51           63.8%
  1324+224             11           6        6           54.5%
  1636+473             92          50       45           48.9%
  1846+322              3           3        3          100.0%
  1909+161             11          11        2           18.2%
  2000+472            201         119       93           46.3%
  2229+695            324         176      174           53.7%
  2355-106            134         102       98           73.1%
  0025+197             10          10       10          100.0%
  0529+483            385         260      258           67.0%
  0716+714            701         447      422           60.2%
  0748+126            360         252      233           64.7%
  1053+704             37          23       23           62.2%
  1617+229             89          47       40           44.9%
  2059+034              8           8        8          100.0%
  2144+092             76          46       46           60.5%
  2309+454             81          56       56           69.1%
  0322+222             16          14       12           75.0%
  0537-286             18           8        7           38.9%
  1759-396             17          13       12           70.6%
  2008-159             45          24       24           53.3%
  0308-611             28          21       19           67.9%
  1502+036             10           9        9           90.0%
  1657-261             13           8        4           30.8%
  1806+456            235         121      115           48.9%
  0131-522             17          16       14           82.4%
  0202+319            210         137      136           64.8%
  NRAO150              31          19       18           58.1%
  1243-072              5           3        3           60.0%
  1504+377              7           7        2           28.6%
  1751+288            193         106      102           52.8%
  2126-158             21          14       12           57.1%
  ------------  ---------  ----------   ------          ------
  Source Total       7426        4908     4596           61.9%

 * Correlated: included in database 

-----------------------------------------

Baseline Performance 

                                 Number of Observations

                         Scheduled   Recoverable*         Used   % of scheduled
                                                                    obs used

  HART15M-ISHIOKA               71            48            47        66.2%
  HART15M-KATH12M               96            57            48        50.0%
  HART15M-KOKEE                  0      NOT CORR      NOT CORR         0.0%
  HART15M-MATERA               206      NOT CORR      NOT CORR         0.0%
  HART15M-NYALES20             128            88            85        66.4%
  HART15M-ONSALA60             167           161           158        94.6%
  HART15M-SEJONG                68            59            55        80.9%
  HART15M-WETTZ13N             200           183           178        89.0%
  HART15M-YARRA12M             168           161           158        94.0%
  ISHIOKA-KATH12M              146           104            99        67.8%
  ISHIOKA-KOKEE                312           305           299        95.8%
  ISHIOKA-MATERA               178      NOT CORR      NOT CORR         0.0%
  ISHIOKA-NYALES20             248           177           174        70.2%
  ISHIOKA-ONSALA60             187           182           181        96.8%
  ISHIOKA-SEJONG               276           274           269        97.5%
  ISHIOKA-WETTZ13N             191           187           184        96.3%
  ISHIOKA-YARRA12M             109           109           109       100.0%
  KATH12M-KOKEE                113            78            75        66.4%
  KATH12M-MATERA                33      NOT CORR      NOT CORR         0.0%
  KATH12M-NYALES20              42            31            29        69.0%
  KATH12M-ONSALA60              30            24            23        76.7%
  KATH12M-SEJONG               162           107           103        63.6%
  KATH12M-WETTZ13N              34            26            25        73.5%
  KATH12M-YARRA12M             331           226           215        65.0%
  KOKEE-MATERA                 137      NOT CORR      NOT CORR         0.0%
  KOKEE-NYALES20               210           136           133        63.3%
  KOKEE-ONSALA60               148           142           140        94.6%
  KOKEE-SEJONG                 182           180           177        97.3%
  KOKEE-WETTZ13N               162           159           153        94.4%
  KOKEE-YARRA12M                73            66            66        90.4%
  MATERA-NYALES20              332      NOT CORR      NOT CORR         0.0%
  MATERA-ONSALA60              389      NOT CORR      NOT CORR         0.0%
  MATERA-SEJONG                116      NOT CORR      NOT CORR         0.0%
  MATERA-WETTZ13N              403      NOT CORR      NOT CORR         0.0%
  MATERA-YARRA12M               38      NOT CORR      NOT CORR         0.0%
  NYALES20-ONSALA60            365           251           245        67.1%
  NYALES20-SEJONG              155           121           117        75.5%
  NYALES20-WETTZ13N            361           243           236        65.4%
  NYALES20-YARRA12M             30            26            24        80.0%
  ONSALA60-SEJONG              125           107           107        85.6%
  ONSALA60-WETTZ13N            390           390           381        97.7%
  ONSALA60-YARRA12M             31            31            31       100.0%
  SEJONG-WETTZ13N              122           119           119        97.5%
  SEJONG-YARRA12M              132           126           125        94.7%
  WETTZ13N-YARRA12M             29            29            28        96.6%
  -----------------      ---------   -----------    ----------       ------
  Baseline Total              7426          4713          4596        61.9%

  * Recoverable: can be included in the solution. 

  MISSED:     Baseline was scheduled, but at least one of the sites
              did not observe.
  NOT CORR:   Baseline was scheduled but not correlated.
  NO DATA:    The baseline's stations were both correlated,
              but they did not observe together.
  DESELECTED: Usable data was generated for the baseline,
              but the analyst rejected it.