what does each part represent for in an id?

Hi,

Here is an ID i got from search results. 

`20190128_165155_1044'

It seems the first part is the date following yyymmdd format. How about the rest two parts?

 

Thanks

Chenyong

1

Comments

3 comments
  • Official comment

    YYYYMMDD_HHMMSS_<satid>

    Sometimes there is also an extra section after the hours/minutes/seconds section used to disambiguate when multiple scenes were acquired for the same satellite in the same satellite.  These take the form:

    YYYYMMDD_HHMMSS_<n>_<satid>

    Next generation satellites will always have this extra section and it will represent the hundredth of a second within the second when the image was acquired. 

    YYYYMMDD_HHMMSS_NN_<sat_id>

    I mildly discourage parsing ids and filenames as the formatting may evolve over time, but hopefully this helps understand.  The main goal of the naming is to give some quick context and to ensure things sort sort of nicely when used in filenames.

    Best regards,

    Frank

  • Thanks Frank!

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  • Hi, just adding what Frank said, here's a complete list of image id interpretation for all Planet imagery: https://support.planet.com/hc/en-us/articles/213169607-How-can-we-interpret-image-file-names-and-ID-numbers- 

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