Earthdata Forum

when I download MODIS L1B data， there is a question that is 504 error gateway time out. what should I do to deal with the question.

https://ladsweb.modaps.eosdis.nasa.gov/archive/allData/6/MOD02QKM/2020/155/MOD02QKM.A2020155.0320.006.2020155131824.hdf
https://ladsweb.modaps.eosdis.nasa.gov/archive/allData/6/MOD02QKM/2020/155/MOD02QKM.A2020155.0140.006.2020155131737.hdf
https://ladsweb.modaps.eosdis.nasa.gov/archive/allData/6/MOD02QKM/2020/155/MOD02QKM.A2020155.0000.006.2020155131752.hdf
https://ladsweb.modaps.eosdis.nasa.gov/archive/allData/6/MOD02QKM/2020/154/MOD02QKM.A2020154.0415.006.2020154131450.hdf
https://ladsweb.modaps.eosdis.nasa.gov/archive/allData/6/MOD02QKM/2020/154/MOD02QKM.A2020154.0235.006.2020154131523.hdf
https://ladsweb.modaps.eosdis.nasa.gov/archive/allData/6/MOD02QKM/2020/154/MOD02QKM.A2020154.0055.006.2020154131551.hdf
https://ladsweb.modaps.eosdis.nasa.gov/archive/allData/6/MOD02QKM/2020/153/MOD02QKM.A2020153.2320.006.2020154071223.hdf
https://ladsweb.modaps.eosdis.nasa.gov/archive/allData/6/MOD02QKM/2020/153/MOD02QKM.A2020153.2140.006.2020154071146.hdf
https://ladsweb.modaps.eosdis.nasa.gov/archive/allData/6/MOD02QKM/2020/153/MOD02QKM.A2020153.0330.006.2020153131212.hdf
https://ladsweb.modaps.eosdis.nasa.gov/archive/allData/6/MOD02QKM/2020/153/MOD02QKM.A2020153.0150.006.2020153131145.hdf
https://ladsweb.modaps.eosdis.nasa.gov/archive/allData/6/MOD02QKM/2020/153/MOD02QKM.A2020153.0015.006.2020153131125.hdf
https://ladsweb.modaps.eosdis.nasa.gov/archive/allData/6/MOD02QKM/2020/152/MOD02QKM.A2020152.2235.006.2020153070722.hdf
https://ladsweb.modaps.eosdis.nasa.gov/archive/allData/6/MOD02QKM/2020/152/MOD02QKM.A2020152.0425.006.2020152130827.hdf
https://ladsweb.modaps.eosdis.nasa.gov/archive/allData/6/MOD02QKM/2020/152/MOD02QKM.A2020152.0250.006.2020152130720.hdf
https://ladsweb.modaps.eosdis.nasa.gov/archive/allData/6/MOD02QKM/2020/152/MOD02QKM.A2020152.0245.006.2020152130657.hdf
https://ladsweb.modaps.eosdis.nasa.gov/archive/allData/6/MOD02QKM/2020/152/MOD02QKM.A2020152.0110.006.2020152130642.hdf

We are aware of and understand the problem (504 Gateway Time-out error) users are facing these days in downloading data. Our team is working on a solution, and hope to have a release out in the next week or so. In the meantime, if you get 504 error try again after a short pause or at a different time.

We were hitting so many 504 errors with that server/endpoint we switched to using the https://ladsweb.modaps.eosdis.nasa.gov/opendap/RemoteResources/laads/allData/6/MOD02QKM/contents.html as described in viewtopic.php?t=3504#confirm_external_link-modal

We also find that the USGS server at https://e4ftl01.cr.usgs.gov is far more stable and provides faster downloads.

Can we expect the reliability and performance of https://ladsweb.modaps.eosdis.nasa.gov/archive/ to improve with these mentioned updates and fixes and would there be any reason to use that server again instead of one of these two I linked above?

Thanks
Colin

Yes, that's what we are working for. Hopefully, after these updates are installed ladsweb should be stable.