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Daily Data Issues

Tracking of known problems and subsequent fixes is an important issue for MODIS data users. This page will act as a repository of all known MODIS Atmosphere Data Product problems, as well as how to determine the problematic version (and the fixed version) of the HDF data -- therefore data users should check this page for updates regularly. Data Users unfamiliar with how to properly track problems and fixes by determining the version of their downloaded HDF files should refer to the documentation at the bottom of this page.

Missing Terra Data between 5 Aug 2017 and 6 Aug 2017

Description: 

Description: Following the Terra Deep Space Calibration on August 5th, 2017 (2017 217) there were some faulty C6 Terra MODIS Atmosphere data as the focal plane temperatures did not return to nominal values until the day after - August 6th, 2017 (2017 218) 1420 UTC. So the granules for the time period between 2017 217 23:00 UTC and 2017 218 14:15 UTC were removed before the downstream Atmosphere processing. Data users will notice missing MODIS Atmosphere Data during this period for all Level-2 (L2) and Level-3 (L3) Daily atmosphere products.

Data Dates Affected: Note there will be Missing Terra Data between 2017 217 (5 Aug 2017) at 23:00 UTC and 2017 218 (6 Aug 2017) at 14:15 UTC for all MODIS Atmosphere L2 and L3 Daily products.

Dates Affected: 
August, 2017
Affected Platform: 
Terra Only
Products Affected: 
Collections Affected: 

Missing Granules/Orbits in Sep-Nov 2014 Aqua Data

Description: 

Incorrect production rules in MODAPS caused the initial release of Aqua MOD08_D3 data to be missing some granules/orbits in the September to November 2014 time period. Data was rerun and new corrected files are now available for download. Since a picture is worth a thousand words, an example animation showing this problem (before and after correction) is displayed below. Just to clarify, this was not a software/code bug, but instead a problem in the operational production rules.

PGE Versions & Production Dates of Problematic & Corrected Data:

Problematic Data Corrected Data
PGE Versions Production Dates PGE Versions Production Dates
≤ PGE56 v6.1.5 ≤ 2014 252 (9/9/2014) ≥ PGE56 v6.1.9 ≥ 2014 324 (11/20/2014)

Data Dates Affected: 9 September 2014 to 20 November 2014

Affected Platform: 
Aqua Only
Products Affected: 
Collections Affected: 

Problems in input 04_L2, 05_L2, 06_L2, 07_L2, and 35_L2 propagate into downstream products

Description: 

See the Known Problem pages for the input (upstream) Level-2 products 04_L2 (Aerosol), 05_L2 (Water Vapor), 06_L2 (Cloud), 07_L2 (Profiles), and 35_L2 (Cloud Mask) by clicking on the links to the left.  Users should make themselves aware of any issues in the upstream data products.

Affected Platform: 
Aqua and Terra
Products Affected: 
Collections Affected: