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<strong>DORIS</strong> / Jason2 Measurement Channels designation strategy ■ Channels 1 to 6 : Beacons selected by DIODE Navigation sw the beacon is tracked • if its identification and coordinates have been uploaded on board (permanent stations, orbitography network) • as soon as it is visible with an elevation > 5 ° ■ Channel 7 : Beacons selected by Spectrum Analysis the beacon is tracked as soon as it is visible over the noise floor • temporary stations (IDS) • low elevation measurements on permanent beacons (0° to 5°) – this may have an impact on phase reconstruction over the passes (see F. Mercier, L. Cerri pres.) – May be affected by masks or multi path effects (station field of view requirement limit is 5°) ■ May be changed depending on users recommendations OSTST/ JASON-2 – Nov11, 2008 - 4
<strong>DORIS</strong> / Jason2 Measurements quantity Data quantity comparison Jason 2 / Jason 1 Jason 2 distribution / elevation 35000 measurements / day 30000 25000 20000 15000 10000 5000 Jason 2 Jason 1 J1 UT2 J1 UT1 J2 UT7 J2 UT6 J2 UT5 J2 UT4 J2 UT3 J2 UT2 J2 UT1 0 Elev.< 5° Elev. >=5° et =10° total total (>= 12°) OSTST/ JASON-2 – Nov11, 2008 - 5
Page 1 and 2: DGXX generation instrument on board
Page 3: Doris / Jason2 coverage 6 5 3 2 30
Page 7 and 8: DORIS Jason 2 Jamming measurements
Page 9 and 10: New features of the DORIS-DIODE Nav
Page 11 and 12: RINEX Formats (1/2) ■ ■ ■ ■
Page 13 and 14: RINEX Formats (2/2) ■ Anomalies d
Page 15 and 16: Beacons Network Time / Master Beaco
Page 17 and 18: Signal Integrity monitoring ■ DOR
Page 19: Doris System : the new age Thank yo

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