1. Page 1 20-APR-2002 RHESSI Data Analysis Workshop RHESSI Reuven Ramaty High Energy Solar Spectroscopic Imager Use or disclosure of data contained on this page is subject to the restrictions on the volume cover SIMULATING RHESSI DATA J MCTIERNAN UCB/SSL

2. Page 2 20-APR-2002 RHESSI Data Analysis Workshop RHESSI Reuven Ramaty High Energy Solar Spectroscopic Imager Use or disclosure of data contained on this page is subject to the restrictions on the volume cover LINKS: This Document: http://sprg.ssl.berkeley.edu/~jimm/hsi_20020420.ppt Simulation Control Parameters: http://sprg.ssl.berkeley.edu/~jimm/hessi/hessi_simulation_control.html HSI_SIM_FLARE: http://sprg.ssl.berkeley.edu/~jimm/hessi/hsi_sim_flare.html Example of Hsi_sim_flare, sim_2gaussians_2002.pro: http://sprg.ssl.berkeley.edu/~jimm/hessi/sim_2gaussians_2002.html Simulated data file parameters: http://sprg.ssl.berkeley.edu/~jimm/hessi/hessi_sim_file_pars.html

3. Page 3 20-APR-2002 RHESSI Data Analysis Workshop RHESSI Reuven Ramaty High Energy Solar Spectroscopic Imager Use or disclosure of data contained on this page is subject to the restrictions on the volume cover STATUS: Simulations are back to pre-launch capabilities, with some new additions You can access simulated files directly from GUI. You can pass in an image as a spatial model, instead of using point sources or gaussians.

4. Page 4 20-APR-2002 RHESSI Data Analysis Workshop RHESSI Reuven Ramaty High Energy Solar Spectroscopic Imager Use or disclosure of data contained on this page is subject to the restrictions on the volume cover HSI_SWITCH: IDL> hsi_switch, /sim ;Simulation Environment sets dbase directory to $SSW/hessi/dbase_sim, sets clock drift directory HSI_CLK_DELTA_DIR to $SSW/hessi/dbase_sim/clock_drift. Sets HSI_USE_SIM. IDL> hsi_switch, /flight ;Flight data, the default sets dbase directory to $SSW/hessi/dbase, clock drift directory to $SSW/hessi/dbase, for flight data the default is to obtain clock drift from hsi_filedb.fits. Unsets HSI_USE_SIM. For some cases, (e.g, using a real aspect solution to simulate data), you might want to do simulations with the actual clock_drift. This cannot be done easily. [This should change in the near future.]

5. Page 5 20-APR-2002 RHESSI Data Analysis Workshop RHESSI Reuven Ramaty High Energy Solar Spectroscopic Imager Use or disclosure of data contained on this page is subject to the restrictions on the volume cover Simple Simulation: Create Object: IDL> o = hsi_image() or o = hsi_lightcurve() Set Parameters: All sim parameters start with “sim_” IDL > o -> set, sim_ut_ref=anytim(‘4-jul-2000 0:00’), sim_time_range=[0.0, 20.0], ut_ref=anytim(‘4-jul-2000 0:00:10’), time_range=[0.0, 4.0] Say “getdata” IDL> data=o -> getdata()

6. Page 6 20-APR-2002 RHESSI Data Analysis Workshop RHESSI Reuven Ramaty High Energy Solar Spectroscopic Imager Use or disclosure of data contained on this page is subject to the restrictions on the volume cover HSI_SIM_FLARE: Hsi_sim_flare can be used to simulate level 0 data files, including both event and aspect packets. See Web page All sim_ control parameters are accepted, also you can append catalog data, using /do_catalog option, and simulate aspect packets, using /sim_aspect_packets. Real aspect solution can be passed by setting sim_aspect_solution to a previously defined hsi_aspect object. set_logenv, ‘HSI_DATA_DIR’, ‘Some_directory’ set_logenv, ‘HSI_QLOOK_PLOT_DIR’, ‘Some_directory’ hsi_sim_flare, sim_ etc….., /do_catalog, /sim_aspect_packets or hsi_sim_flare, sim_ etc…., /do_catalog, /aspect_sim File is written to HSI_DATA_DIR, Qlook plots to HSI_QLOOK_PLOT_DIR

7. Page 7 20-APR-2002 RHESSI Data Analysis Workshop RHESSI Reuven Ramaty High Energy Solar Spectroscopic Imager Use or disclosure of data contained on this page is subject to the restrictions on the volume cover For GUI: Set_logenv, ‘HSI_FILEDB_ARCHIVE’, ‘’ turns off normal dbase hessi, filename = output file from hsi_sim_flare set /aspect_sim if you did not simulate aspect packets or use sim_aspect_solution Light curves, and images work as expected, qlook data is presently not available from GUI, but you can use CLI. o = hsi_flare_list(filename = ….) data=o->getdata() print, data.position

8. Page 8 20-APR-2002 RHESSI Data Analysis Workshop RHESSI Reuven Ramaty High Energy Solar Spectroscopic Imager Use or disclosure of data contained on this page is subject to the restrictions on the volume cover SIMULATED DATA FILE: Restored to pre-launch conditions:.../2000/09/02/hsi_20000902_033440_000.fits hsi_filedb.fits and hessi_flare_list.fits in $SSW/hessi/dbase_sim refer to this file. 10 flares, various parameters, summarized on: http://sprg.ssl.berkeley.edu/~jimm/hessi/hessi_sim_file_pars.html

9. Page 9 20-APR-2002 RHESSI Data Analysis Workshop RHESSI Reuven Ramaty High Energy Solar Spectroscopic Imager Use or disclosure of data contained on this page is subject to the restrictions on the volume cover