IMERG Early Run Example January 24th, 2020

Data News

The GPM Mission Operations have successfully executed Orbit Raise Burn #2 for the GPM Core Observatory (GPM-CO). The maneuver performance was NOMINAL . Burn Start: 17:22:42 UTC* Burn End: 17:32:32 UTC* Duration: 590 seconds *slightly earlier than the planned time stated yesterday – adjusted to optimize altitude-raise performance and subsequent operational events. This completes the GPM-CO altitude-raising process; subsequent work will focus on returning the data products to regular production with as little difference from pre-boost behavior as possible. Note that DPR data will be held pending...
The GPM Mission Operations have successfully executed Orbit Raise Burn #1 for the GPM Core Observatory. The maneuver performance was NOMINAL . Burn #1 Start: 14:19:53 UTC 7 November Burn #1 End: 14:29:43 UTC 7 November Duration: 590 seconds Post-maneuver orbit determination and burn reconstruction have begun. Burn efficiency will be presented at the CAM tomorrow morning and used in the prediction for Orbit Raise Burn #2 (and final), for which the timing is: Planned Burn #2 Start: 17:23:16 UTC 8 November Planned Burn #2 End: 17:33:06 UTC 8 November Planned Duration: 590 seconds Note that DPR...
As of Aug. 30, 2023, the entire available record of archived TRMM, GPM Core Observatory, partner satellite, and ancillary data has been retrospectively processed for the IMERG V07 Final Run dataset, covering June 2000 - April 2023. Initial processing (i.e., with newly arrived data) will extend the Final Run record as additional months of data are received, typically 3.5 months after the near real-time products, which users can determine by checking the IMERG Final Run data listings on the PPS or GES DISC GPM data sources (a full listing of GPM data downloads and sources can be found in the GPM...
The IMERG development team has become aware that a small number of isolated bad Level 2 GPROF orbit granules leaked into V07A IMERG Final Run processing. The team is working with PPS to identify a more-complete list of such instances and trace them back to the Level 1C microwave data. Additional testing is being done and might reveal a few more cases. We are providing this information now in case the times happen to impinge on a detailed study that you are performing. The above image is an example of one of the worse cases (from F16 SSMIS); most cases are less severe or shorter in duration and...
The GPM Core Observatory satellite is scheduled to undergo a series of orbit boost maneuvers which will raise its altitude from 400km to 435km. These boosts are tentatively scheduled for Nov. 7 and 8, 2023. As a result of these maneuvers, the observing parameters of data collected by the GPM Microwave Imager ( GMI ) and Dual-frequency Precipitation Radar ( DPR ) instruments will change, including the footprint sizes and Earth incidence angle. The algorithms which process these data must be updated to accommodate these changes, including the Level 2 GPROF, DPR, and CORRA algorithms; the Level 3...

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