Subject: [IGSREPORT-446] GFZ Analysis Report (week 709)
From: Galina Dick
Date: 20 AUG 1993 14:18:43

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IGS Electronic Report     20-AUG-1993 14:18:43       Message Number 446
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From: Galina Dick
Subj: GFZ Analysis Report (week 709)
------------------------------------

******************************************************************************
GFZ ANALYSIS REPORT   GPS-WEEK 0709 (DAYS 220-226, DATES 08-08-93 TO 14-08-93)
******************************************************************************

Submitted by: G. Gendt, Ch. Reigber, G. Dick, Th. Nischan, W. Mai 
              GeoForschungsZentrum Potsdam (GFZ)
             
              Telegrafenberg A17, D-14473 Potsdam, Germany
              e-mail:[email-masked]
              fax: (0331) 310 648
              tel: (0331) 310 252 

PRODUCT SUMMARY

FILES SENT TO IGN: 
______________________________________________________________________________
gfz07097.sum           this text file
gfz07097.erp           Earth rotation parameters 
gfz0709[0-6].eph       Daily orbit ephemerides , SP1 format
______________________________________________________________________________

ERP RESULT

  MJD        X        Y      UT1-IAT     XSIG    YSIG                   STA SAT 
           arcsec   arcsec     sec      arcsec  arcsec   
49207.500 -0.09165  0.26906 -27.459078  0.00004 0.00004  0.0 0. 0. 0. 0. 27 24
49208.500 -0.09321  0.27043 -27.460684  0.00004 0.00004  0.0 0. 0. 0. 0. 27 24
49209.500 -0.09433  0.27278 -27.462290  0.00004 0.00004  0.0 0. 0. 0. 0. 27 24
49210.500 -0.09444  0.27535 -27.463862  0.00004 0.00004  0.0 0. 0. 0. 0. 28 24
49211.500 -0.09524  0.27734 -27.465434  0.00004 0.00004  0.0 0. 0. 0. 0. 25 24
49212.500 -0.09570  0.27939 -27.467006  0.00004 0.00004  0.0 0. 0. 0. 0. 26 24
49213.500 -0.09602  0.28156 -27.468578  0.00004 0.00004  0.0 0. 0. 0. 0. 26 24
-------------------------------------------------------------------------------

  MJD          LODR    +/-
             (ms/day)

49207.5000    1.8105  0.004
49208.5000    1.9104  0.005
49209.5000    1.7425  0.005
49210.5000    1.7960  0.004
49211.5000    1.7604  0.005
49212.5000    1.7919  0.005
49213.5000    1.8051  0.005
-----------------------------

ORBITS REPEATABILITY (cm):
(mean component error rms =sqrt((xrms**2 + yrms**2 + zrms**2)/3) )

            DAY 1  (32 h)              DAY 2  (32 h)
   |------------------------|--------|                            
 
                            |------------------------|--------|

   Six-hour overlap:        |xxxxxx|

   (only rms < 120 are used for MEAN)

--------------------------------------------------------------------------------
DAY MEAN 1  2  3  7  9 12 13 14 15 16 17 18 19 20 21  22 23 24 25 26 27 28 29 31
--------------------------------------------------------------------------------
220  52 24 60 50 65 33 33 29 63 67 22 76 42 10 88 39 105279 49 37 27 21145 55 33
221  42 51 59 22 36 24 20 35 23 15 47 52 27 31 57 39 287251 44178 25 36128 93 19
222  43 32 53 22 28 23 21 27 20 22 38 39  - 82 83 24 175 30 20 61 21 56 39 68 31
223  51 23 72 51 48 20 23 23 37 29 33 73  - 81109 26 739 69 26 41 17 82 39 24 33
224  39 36 57 50 43 24 25 22 44 18 29 76 15 24 73 28 233 33 49 27  - 43 20 17 27
225  42 14 48 29 20 17 18 22 33 13 29 64 29 28103 35  84 50 20 39  - 51 20 20 43
226  41 23 79 21 19 20 15 12 32 24 36 42 40 23 76 29  87 44 20 47 39 43 33 36 19
--------------------------------------------------------------------------------

REMARK: (1) manoeuver of satellite PRN26 on day 224
        (2) AS PRN18 on day 222. A number of stations have errors in
            RINEX-files, those data have been removed 
        (3) modelling problems with satellite PRN22 on days 220,222,223
        (4) no explanation for bad overlaps of satellite PRN23 on days 220,221 

STATIONS USED BY GFZ INCLUDING STATISTICS

Sampling rate: 6 minutes
                                                          
 IGS  INTERNAL         OBSERVATIONS for DAY
 CODE  STA#       220  221  222  223  224  225  226
----------------------------------------------------
onsa  105001      1487 1485 1426 1507 1454 1407 1414
kosg  110001      1476 1485 1431 1495 1460 1499 1452
madr  120001      1487 1491 1206 1487 1476 1506 1473
mate  130001      1363 1096 1110 1407 1382 1426 1396
trom  150001      1406 1439 1341 1413 1397 1412 1367
wetb  160001      1305 1516 1456 1509 1476 1497 1460
mets  180001         0    0 1023 1445 1398 1445 1408
usud  200002      1090 1045 1040 1013 1005 1068 1211
taiw  220001       861  827  817  829  856  852  898
tidb  305001      1465 1372 1437 1397 1310 1437 1483
yar1  310001      1449 1295 1160 1408 1388 1467 1459
hob1  320001      1382 1343 1404 1472 1398 1455 1484
algo  400001      1487 1548 1503 1516 1472 1513 1424
stjo  405001      1291 1503 1449 1506 1398 1237 1467
wes2  408001      1511 1510 1460 1445 1402 1385 1404
gold  410001      1355 1331 1338 1241 1259 1368 1398
jplm  415001      1409 1393 1347 1176    0    0    0
fair  420001      1177 1148  182  701 1146 1022 1230
yell  470001      1493 1506 1482 1535 1512 1536 1532
drao  475001      1194 1180 1134 1198 1135 1187 1192
rcm2  480001      1196 1251 1234 1264 1209 1275 1249
sant  500001      1133 1122 1165 1206  855  922  954
kour  510001      1144 1166 1141 1150 1117 1212 1184
fort  520001       308  212    0  331    0  410  109
hart  600001       910  881  902  999  866  934  912
masp  610001      1240 1239 1187 1240 1177 1246 1237
kokb  700001      1245 1280 1159 1244 1138 1207 1210
pama  710001      1202 1202    0    0    0    0    0
mcmu  800001         0    0 1287 1348    0    0    0
----------------------------------------------------

SATELLITES STATISTICS

                OBSERVATIONS for DAY
PRN     220  221  222  223  224  225  226
------------------------------------------
  1    1707 1696 1735 1789 1666 1598 1565
  2    1628 1598 1549 1628 1570 1578 1510
  3    1357 1395 1403 1451 1272 1272 1312
  7    1488 1458 1492 1622 1507 1499 1510
  9    1557 1679 1714 1767 1648 1684 1612
 12    1522 1578 1621 1674 1569 1588 1571
 13    1675 1660 1674 1809 1694 1702 1750
 14    1623 1540 1617 1613 1515 1549 1610
 15    1543 1465 1492 1374 1384 1339 1332
 16    1403 1325 1326 1373 1198 1212 1304
 17    1265 1332 1365 1417 1306 1291 1313
 18    1491 1199  193 1463 1370 1436 1358
 19    1442 1332 1358 1384 1340 1420 1330
 20    1542 1629 1628 1769 1544 1626 1659
 21    1548 1567 1484 1500 1391 1391 1431
 22    1341 1369 1366 1392 1174 1212 1243
 23    1164 1250 1226 1311 1147 1153 1168
 24    1279 1325 1212 1354 1264 1293 1239
 25    1344 1437 1380 1424 1295 1263 1323
 26    1288 1256 1211 1327  179 1120 1171
 27    1259 1176 1157 1189 1154 1187 1152
 28    1169 1126 1131 1236 1067 1078 1128
 29    1216 1227 1216 1260 1202 1196 1210
 31    1215 1263 1271 1356 1230 1238 1206
 -----------------------------------------

SOLUTION CHARACTERISTICS

1. Software used :   EPOS.P.V2
2. Definition of Terrestrial Reference Frame
     Fiducial-free adjustment of all station coordinates.
     These  coordinates are then fixed in the determination of ERPs and ORBITS
 
3. Data used:
   - undifferenced carrier phases
   - 32 h arc solutions   

5. Adjusted parameters:
   - state vector of all satellites
   - coordinate corrections 
   - daily ERPs
   - tropospheric zenith path delay (4 h)
   - y-bias, solar radiation scaling factor
   - ambiguities
   - STA and SV clock parameters of each observation epoch