ECOSTRESS L2G and L1 Swath available while L1B_GEO missing

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dictation
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ECOSTRESS L2G and L1 Swath available while L1B_GEO missing

by dictation » Sat Jan 10, 2026 6:10 am America/New_York

Dear LP DAAC Support Team,

I am writing to report an issue regarding missing ECO_1B_GEO (Level 1B Geolocation) files for specific ECOSTRESS scenes.

I have encountered several instances where both the Level 2 Swath product (ECO_L2_LSTE) and the Level 2 Gridded product (ECO_L2G_LSTE) are available and valid, but the corresponding Level 1B Geolocation product (ECO1BGEO)—which is required to geolocate the L2 Swath data—is missing from the Earthdata Search results and the archive.

While I am aware that the L2G (Gridded) products are available, my current research requires the use of the L2 Swath data for custom cloud removal. As you know, the L2 Swath HDF5 files do not contain latitude/longitude arrays and rely entirely on the ECO1BGEO file for geolocation. Without the L1B file, the L2 Swath data is effectively unusable.

I have observed this "orphan granule" phenomenon in orbit 35871.

Since the L2 and L2G products were successfully generated, the L1B_GEO data must have existed at the time of processing.

Could you please confirm if these L1B_GEO files are permanently missing from the archive, or if this is an indexing issue that can be resolved? If the files are stored but not indexed, is there a direct method to retrieve them?

Thank you for your assistance.

Best regards,

Jifei Huang
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Re: ECOSTRESS L2G and L1 Swath available while L1B_GEO missing

by LP DAAC - lien » Mon Jan 12, 2026 3:14 pm America/New_York

Hi Jifei,
Thanks for bringing this to our attention. Theree should be corresponding Geo location files. We are in contact with the Ecostress developers about this. When we get more information we will let you know. Thanks for your patience.
Brett

dictation
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Re: ECOSTRESS L2G and L1 Swath available while L1B_GEO missing

by dictation » Mon Jan 12, 2026 8:35 pm America/New_York

Hi Brett,

Thank you for the quick response and for reaching out to the ECOSTRESS developers. I appreciate your help in looking into this.

I look forward to hearing from you when more information becomes available.

Best regards, Jifei

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