******************************************************************************** NUSTAR ******************************************************************************** NuSTARDAS v2.0.0: Requirements: NuSTAR CALDB 20200YXX This NuSTARDAS implements a new temperature-dependence during the ARF generation that should improve performance in a small number of cases for FPMA. The software change is required to account for cases where the optic for FPMA is "cold", implying a decrease in the effectiveness of the thermal blanketing (MLI) and a corresponding increase in the low-energy transmission. This primarily affects observations after 2018. This builds on the long-term ARF changes for FPMA documented here: https://heasarc.gsfc.nasa.gov/docs/heasarc/caldb/nustar/docs/release_20200429.txt The accompany CALDB patch 20200YXX contains the temperature-dependent corrections and is required for this software version. Details on the issue can be found in this paper: https://arxiv.org/abs/2005.00569 More details about the MLI correction can also be found here: http://www.srl.caltech.edu/NuSTAR_Public/NuSTAROperationSite/mli.php :: Note :: This patch requires access to the optics bench housekeeping file (obebhkfile). This file is distributed for each observation in the "hk" subdirectory from the HEASARC. If an observation is downloaded from the HEASARC, as always, we recommend running nupipeline to recalibrated the data using the latest CALDB files. This will copy the OBEB HK file into the output directory (commonly the "event_cl" directory). No further action is required by the user as these input files are automatically detected by nuproducts during later analysis if they are present in the event_cl directory. To call nuproducts directly on the data downloaded from HEASARC requires the use of new input keyword: `inobebhkfile'. Details of this are described in the software user's guide https://heasarc.gsfc.nasa.gov/docs/nustar/analysis/nustar_swguide.pdf and in the quickstart guide: https://heasarc.gsfc.nasa.gov/docs/nustar/analysis/nustar_quickstart_guide.pdf :: Software changes :: The major changes introduced in this version are: - numkarf: 1) Added temperature dependency for ARF files CALDB query; 2) Added new 'obebhkfile' input parameter and computation of "OPT0_5TEMP" average value. - nuproducts: 1) Modified call of numkarf task; 2) Added new 'obebhkfile' input parameter. - nupipeline: 1) Modified call of nuproducts task; 2) Added new `inobebhkfile' and `obebhkfile' input parameters. - nu_highfits: Modified to support TFORM values '1PD(X)/1PI(X)'.