analytic_dn calibration in reflectance

Hello,

as mentioned in this document (below) we tried to calculate the TOAR with this formula but values in output are really far to be reflectance between 0 to 1 (0.0009 - 0.009)

Do you know where i 'm wrong? 

I also tried to get the coefficients from geotiff but i.m not able to find it . do you know how to get out this informations?

thank you for any help 

 

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Comments

4 comments
  • Official comment

    Hi Andrea,

     

    Thanks for posting in Planet Community.

    In addition to the above information, do you have the scene ID you tried this on?

     

    Best Regard,s

    Pooja

  • More details on input data:

    the image is SkySatCollect and the asset type is  assets.ortho_analytic_dn.

     

     

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  • Hi Pooja,

    Yes , I've more than one .

    is the scene id this info I can get from the json file?

    item-types/SkySatCollect/items/20200229_093318_ssc4_u0002/assets

    let me know if you need more info.

    Best Regards

     

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  • Hello Support,

    if you need info/clarifications can you contact me please?

     

    thank you

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