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Yes, anc_utils.py script is failing to get the attitude and ephemeris ancillary files because they are not available. It seems that the average latency for terra att/eph has increased about 100 minutes from 7-10 hours to 9-11 hours since mid June. See https://forum.earthdata.nasa.gov/viewtopic.php?p...

Our team maintains anc_data_api. We are looking into the issue why the availability of att/eph for terra is delayed.

Bing

Unfortunately, anc_data_api is not returning att/eph files for your start/stop time. https://oceandata.sci.gsfc.nasa.gov/api/anc_data_api/?&m=8&s=2022-06-28T22:45:54&e=2022-06-28T22:55:50 At this moment, att/eph is not available after 2022-06-28T18:00:00 https://oceandata.sci.gsfc.nasa.g...

OCSSW T2022.14 and newer can process Landsat 9 L1B files, but they are test versions. Also, SeaDAS 8.2.0 does not have l2gen GUI capability on Landsat 9 L1B files.

You can install OCSSW T2022.14 or newer with --olil9 argument and do l2gen on command line.

Bing

The unavailability of att/eph files is related to an issue with a distribution server upstream from us. That issue is resolved. We did make some changes to the api "anc", which modis_atteph calls (OCSSW V2021.2). It changes the return status of modis_atteph, but it should not affect the fi...

modis_atteph -m terra -v -s 2022178212351 -e 2022178232351 works now

Bing

I think you have an older version of ocssw and V2022.0 mixed in your /cwdata1/seadas8.2/ocssw/ directory because 1. The error message says your L3 BIN is an old one L3BIN 5.13 (Aug 16 2019 12:47:26) 2. In your /cwdata1/seadas8.2/ocssw directory, there is ocssw_src, which should not be there if you d...

Rrs_746 is not included in VIIRS L2 OC suite. You can download L1A and GEO here https://oceandata.sci.gsfc.nasa.gov/directdataaccess/ and generate your own L2 file with Rrs_746 by doing l2gen on VIIRS L1A + GEO, with Rrs_746 added to Selected Products on The Products Tab https://seadas.gsfc.nasa.gov...

anc_data_api seems to return ATT/EPH for terra modis on Day 169 after 14:00 UTC https://oceandata.sci.gsfc.nasa.gov/api/anc_data_api/?&m=8&s=2022-06-18T14:00:01&e=2022-06-18T14:05:01 modis_atteph behaves normal too -- $ modis_atteph -s 2022169140000 -m terra Running debug binaries... /Us...

I replicated the error with R2022.5. We'll look into the issue.

On the other side, I did with V2022.0 with no problems.