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Bernese GPS Software Version 5.0 - Bernese GNSS Software

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22.9 Atmosphere Related Files<br />

CODE’S STATION-SPECIFIC IONOSPHERE INFO FOR DAY 043, 2001 15-FEB-01 22:35<br />

--------------------------------------------------------------------------------<br />

MODEL NUMBER / STATION NAME : ALIC 50137M001<br />

MODEL TYPE (1=LOCAL,2=GLOBAL,3=STATION) : 3<br />

MAXIMUM DEGREE OF SPHERICAL HARMONICS : 6<br />

MAXIMUM ORDER : 6<br />

DEVELOPMENT WITH RESPECT TO<br />

GEOGRAPHICAL (=1) OR GEOMAGNETIC (=2) FRAME : 2<br />

MEAN (=1) OR TRUE (=2) POSITION OF THE SUN : 1<br />

MAPPING FUNCTION (0=NONE,1=1/COS) : 1<br />

HEIGHT OF SINGLE LAYER AND ITS RMS ERROR (KM) : 450.00 0.00<br />

COORDINATES OF EARTH-CENTERED DIPOLE AXIS<br />

LATITUDE OF NORTH GEOMAGNETIC POLE (DEGREES) : 79.00<br />

EAST LONGITUDE (DEGREES) : -71.00<br />

PERIOD OF VALIDITY<br />

FROM EPOCH / REFERENCE EPOCH (Y,M,D,H,M,S) : 2001 02 12 00 00 00<br />

TO EPOCH : 2001 02 12 23 59 59<br />

LATITUDE BAND COVERED<br />

MINIMUM LATITUDE (DEGREES) : -43.89<br />

MAXIMUM LATITUDE (DEGREES) : -20.97<br />

ADDITIONAL INFORMATION<br />

NUMBER OF CONTRIBUTING SATELLITES : 28<br />

ELEVATION CUT-OFF ANGLE (DEGREES) : 10<br />

MAXIMUM TEC AND ITS RMS ERROR (TECU) : 93.70 4.68<br />

COMMENT / WARNING :<br />

COEFFICIENTS<br />

DEGREE ORDER VALUE (TECU) RMS (TECU)<br />

0 0 263.76394413 109.5912<br />

1 0 -86.24873600 119.5143<br />

1 1 57.74971690 105.9182<br />

...<br />

6 -5 -3.03749549 0.6371<br />

6 6 0.72545495 0.1393<br />

6 -6 0.05605763 0.1410<br />

...<br />

22.9.5 Ionosphere IONEX Maps<br />

Type: ASCII<br />

Figure 22.52: Ionosphere (ION) file of model type 3.<br />

Directory: Campaign-specific directory ATM.<br />

Extension: INX<br />

Content: Earth-fixed grid maps (snapshots) of total electron content (TEC) values (and<br />

of associated rms errors, optionally). Differential (P1-P2) code bias (DCB)<br />

values related to <strong>GPS</strong>/GLONASS satellites may be included as well (see also<br />

Section 22.7.11).<br />

Created by: <strong>GPS</strong>EST (”Menu>Processing>Parameter estimation”), ADDNEQ2 (”Menu>Processing<br />

>Normal equation stacking”)<br />

Used by: Exchange format internationally adopted.<br />

Example: Figure 4.10.<br />

More information concerning the IONosphere map EXchange (IONEX) format may be<br />

found in Sections 4.8, 22.4.15 and in Chapter 12. The interested user is finally referred<br />

to the IONEX format specifications [Schaer et al., 1998] or ftp://ftp.igs.org/igscb/<br />

data/format/ionex1.pdf. Header information is gathered from file ${X}/GEN/IONEX., see<br />

Section 22.4.15.<br />

<strong>Bernese</strong> <strong>GPS</strong> <strong>Software</strong> <strong>Version</strong> <strong>5.0</strong> Page 539

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