Omega dataset available on PSA until today

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Omega dataset available on PSA until today. MEx orbit: T = 6.5 hrs ~ 100 orbits / month ~ 5500 orbits Variety of local times OMEGA has operated over ~1300 orbits. B. Gondet ( Ω /MEX). Omega dataset available on PSA until today. Orbit number from 6 to 2526 - PowerPoint PPT Presentation

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  • Omega dataset available on PSA until todayB. Gondet (/MEX)MEx orbit: T = 6.5 hrs~ 100 orbits / month~ 5500 orbitsVariety of local timesOMEGA has operated over ~1300 orbits

  • Omega dataset available on PSA until todayB. Gondet (/MEX)Orbit number from 6 to 2526January 2004 to december 2005

  • Mission startLs=330End of the datasetLs=350

  • OMEGA dataset: 662 orbits covering one Martian year, from N mid-winter (Ls=330) to N mid-winter (Ls=350)N springN summerN fallN winterSolar conjunctionMarsis antennadeploymentmission start

  • Global coverage

  • High resolution coverage

  • Sun elevationi < 00 < i < 1515 < i 30Pericenter latitudeOrbit number

  • 52 orbits over the south poleLs ()Orbits number

  • 204 orbits over the north poleLs ()Orbits number

  • OMEGA scanning modes

    swath widthmodealtitude 16high res.< 300 km 32medium/high res.300 km 950km 64global mapping950 km 1550 km128global mapping1550 km 4000 km

  • OMEGA scanning modes

    swath widthmodealtitude 16high res. (~ 300m)< 300 km 32medium/high res.300 km 950km 64global mapping950 km 1550 km128global mapping (2 5 km)1550 km 4000 km

  • OMEGA naming conventionORBnnnn_x.QUB data cubeORBnnnn_x.NAV navigation associated

    nnnn = orbit numberx = cube number (from 0 to j)

    (one cube per mode but also one cube per integration time)

  • OMEGA baseline pointing mode

  • Nadir pointing (typical mode SEA > 5)with cross-track offsets

  • Orbit 61

  • Orbit 61

  • Orbits 600-610

  • Orbits 900-910

  • Special observationsLIMBSEPFPhobos

  • surface + limb ABCA-B: surface mappingB-C: atmospheric mapping < ~ 30 S/C: 3 axis stabilized

  • Special observations: limbs313 observations

  • Fixed targeted areas (point tracking, or EPF) ABC

  • Special observations : EPF

    orbit

    date

    Ls ()

    Longitude(E)

    latitude

    604

    10/07/04

    59.

    180.

    0.

    1639

    26/04/05

    200.

    165.

    25N

    2008

    08/08/05

    265.

    70.

    48.5S

    Hellas

    2139

    13/09/05

    286.

    260.

    85S

    PS

    2219

    06/10/05

    301.

    84.6

    74S

    PS

  • Special observations : Phobos

    orbit #distance (km)px size (m)phase angle ( )756_0149170 m62.6413_018822200 m47.2

  • Observations examples

  • spectra examples

  • Longitude : 354.5-354.75 Latitude : 5.55S-4.45SAlbedo (1.3m)HydratationcriterionslopecriterionAssociated spectrum

  • Longitude : 354.5-354.75 Latitude : 5.55S-4.45SAlbedo (1.3m)HydratationcriterionslopecriterionAssociated spectrumHRSC

  • Longitude : 354.5-354.75 Latitude : 5.55S-4.45SAlbedo (1.3m)HydratationcriterionslopecriterionAssociated spectraHRSC