Earthdata Forum

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

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

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

Hi Brett,

I hope you are doing well.

I am writing to follow up on this issue, as it has been about three weeks since we last spoke. Have there been any updates from the ECOSTRESS developers regarding the missing L1B_GEO files for orbit 35871 (and others)?

Since my research relies on processing the L2 Swath data, I am currently blocked without these geolocation files. Any information on a potential timeline or a workaround would be greatly appreciated.

Thank you again for your assistance.

Best regards,

Jifei

Hi Jifei,
Sorry for the hassles with this. We have contacted the data provider this morning again to see when we can expect the arrival of the geo data. So we do expect it soon. As I get more information I will pass it along.
Thanks,
Brett

Hi Brett,

Thank you for the update and for pressing the data provider on this.

It is a relief to hear that the data is expected soon. I will keep an eye on the archive.

Thanks again for your continued support.

Best regards,

Jifei