The Level 1B Code generates data products containing calibrated radiances for all 36 MODIS bands and reflectances for the reflective Solar bands (Bands 1 through 19 and 26).
Collection 6.1 was released to the public on September 1, 2017, for both Aqua and Terra MODIS. An update to Aqua MODIS was released in July 2022 to address the cross-talk issues for PV bands resulting from the safe mode earlier that year. Collection 7 reprocessing was completed in early 2025, with forward processing beginning in July 2025.
| Forward Processing (Collection 6.1) | Forward Processing (Collection 7) | |||
| Terra | Aqua | Terra | Aqua | |
| Current L1B PGE02 Code Version |
6.2.2 | 6.2.3 | 7.0.20 | 7.0.19 |
| Began Production |
September 1, 2017 | July 27, 2022 | July 19, 2025 | July 15, 2025 |
| First Granule(s) Processed | September 11, 2017 (Day 2017244) 00:00 UT | July 27, 2022 (Day 2022208) 00:00 UT | July 19, 2025 (Day 2025200) 00:00 UT | July 15, 2025 (Day 2022196) 00:00 UT |
| Current L1B LUTs Version |
6.2.2.123 | 6.2.3.46 | 7.0.20.8 | 7.0.19.8 |
| Began Production |
December 13, 2025 | December 6, 2025 | December 13, 2025 | December 9, 2025 |
| First Granule(s) Processed | December 13, 2025 (Day 2025347) 00:00 UT | December 6, 2025 (Day 2025340) 00:00 UT | December 13, 2025 (Day 2025347) 00:00 UT | December 9, 2025 (Day 2025343) 00:00 UT |