Page 1 HESSI Data Analysis Workshop February 7, 2001 NASA-GSFC HESSI High Energy Solar Spectroscopic Imager Use or disclosure of data contained on this page is subject to the restrictions on the volume cover HESSI QUICKLOOK DATA, SOFTWARE AND SIMULATED DATA J McTiernan University of California, Berkeley

Page 2 HESSI Data Analysis Workshop February 7, 2001 NASA-GSFC HESSI High Energy Solar Spectroscopic Imager Use or disclosure of data contained on this page is subject to the restrictions on the volume cover

Page 3 HESSI Data Analysis Workshop February 7, 2001 NASA-GSFC HESSI High Energy Solar Spectroscopic Imager Use or disclosure of data contained on this page is subject to the restrictions on the volume cover HSI_CONTACT2FITS IDL routine, runs automatically in SOC (Science Ops Center) INPUT: Telemetry files (vc1, stored instrument state-of-health, vc3, stored science) Orbit Data from GDS Calibration Files

Page 4 HESSI Data Analysis Workshop February 7, 2001 NASA-GSFC HESSI High Energy Solar Spectroscopic Imager Use or disclosure of data contained on this page is subject to the restrictions on the volume cover HSI_CONTACT2FITS Checks smex packet header info for uncorrected bit errors, checks packet header for invalid app_id, out of sequence packets, bad collect times, and flags bad packets. Combines and sorts packets into one array. Finds and inputs orbit data, determines file start and end times. Orbit files start and end in eclipse Loops through orbits:

Page 5 HESSI Data Analysis Workshop February 7, 2001 NASA-GSFC HESSI High Energy Solar Spectroscopic Imager Use or disclosure of data contained on this page is subject to the restrictions on the volume cover For each Orbit: Gets packets for the orbit time range Checks for files with data in the same time range. If other files are found, the packets are read in and combined with the original array. (Old files are discarded after the new files are written). Filedb.status is set to -1. The file version number is incremented. Duplicate packets are deleted. (Note that duplicate packets flagged as 'bad' are discarded first). Checks file size, if there are more than packets (40 Mb), splits into smaller files. Writes FITS file: hsi_yyyymmdd_hhmm_nnn.fits Next orbit

Page 6 HESSI Data Analysis Workshop February 7, 2001 NASA-GSFC HESSI High Energy Solar Spectroscopic Imager Use or disclosure of data contained on this page is subject to the restrictions on the volume cover For Each File: Creates Observing Summary, appends file Calculates background, finds flares, creates Flare List, appends file Makes Qlook Spectra, appends file Makes Qlook Images, appends file Fills database structure for those files, {hsi_filedb} Next File

Page 7 HESSI Data Analysis Workshop February 7, 2001 NASA-GSFC HESSI High Energy Solar Spectroscopic Imager Use or disclosure of data contained on this page is subject to the restrictions on the volume cover HESSI Data Products FITS files: usually 1 per orbit, telemetry packets with appended catalog PNG files, images, spectra, and count rate plots, online Daily Catalog files, online: hessi_catalog_yyyymmdd.fits HESSI Flare List, online : hessi_flare_list.fits, also an ascii file: hessi_flare_list.ascii Database file, contains file names, time ranges, online : hsi_filedb.fits CD list file, lists files on each CD, online Clock Sync file, syncs spacecraft time to UT, online

Page 8 HESSI Data Analysis Workshop February 7, 2001 NASA-GSFC HESSI High Energy Solar Spectroscopic Imager Use or disclosure of data contained on this page is subject to the restrictions on the volume cover HESSI Data Products: Observing Summary spin-averaged count rates in 9 energy bands, summed over detectors particle detector rates modulation variance, 2 Coarsest collimators S/C position and velocity Instrument Log: Housekeeping, State of Health data for systems Background data for each detector segment, particle detector Flags for: ['SAA passage', 'Eclipse', 'Flare', 'Non-Solar Event', 'Front Ratio', 'Decimation', 'IDPU Control Version Number', 'Cryocooler Power', 'Cold Plate Temp', 'IDPU Temp', 'Cold Plate Supply', 'HV28 Supply', 'Actuator Supply', 'Fast Housekeeping', 'S/C Transmitter', 'S/C in Sunlight', 'SSR State', 'Attenuator state']

Page 9 HESSI Data Analysis Workshop February 7, 2001 NASA-GSFC HESSI High Energy Solar Spectroscopic Imager Use or disclosure of data contained on this page is subject to the restrictions on the volume cover HESSI Data Products: Flare List Id number Start, peak and end times, in energy range [12.0, 25.0] keV peak count rate, counts/sec/segment, in the energy range total counts Background Count rate and Time Range Highest energy of observed photons Flare position, arcsec from Sun center, and string rep. Flags for flares that start/end in Eclipse or SAA, flares at file SOF, EOF Solar-Non-solar event flag Detector Id's (Fronts only are used for flares, both can be used for others) File(s) which have the data Active Region number

Page 10 HESSI Data Analysis Workshop February 7, 2001 NASA-GSFC HESSI High Energy Solar Spectroscopic Imager Use or disclosure of data contained on this page is subject to the restrictions on the volume cover HESSI Flare Position Image

Page 11 HESSI Data Analysis Workshop February 7, 2001 NASA-GSFC HESSI High Energy Solar Spectroscopic Imager Use or disclosure of data contained on this page is subject to the restrictions on the volume cover HESSI Data Products: Quicklook Spectra Count and photon spectra as a function of time Thermal + double power law photon spectra, dE = E/2 energy resolution.

Page 12 HESSI Data Analysis Workshop February 7, 2001 NASA-GSFC HESSI High Energy Solar Spectroscopic Imager Use or disclosure of data contained on this page is subject to the restrictions on the volume cover HESSI Data Products: Quicklook Images Images in the energy bands given by the Observing Summary, If possible, Cadence determined by Count Rate. (Presently only 4 second peak)

Page 13 HESSI Data Analysis Workshop February 7, 2001 NASA-GSFC HESSI High Energy Solar Spectroscopic Imager Use or disclosure of data contained on this page is subject to the restrictions on the volume cover Tests of SOC software Local Tests: vc1 & vc3 simulated in raw data files, (no headers or frames). Realistic orbit data, HSI_CONTACT2FITS run from IDL session. Results in simulated data files online at Test of SOC scripts: vc1 & vc3, simulated data, HSI_CONTACT2FITS run in script, script then queues the data for CD production and FTP. Test contacts: vc1 & vc3 from HESSI, no orbit data, no "flare", FITS file with Obs summary, but no flare list.

Page 14 HESSI Data Analysis Workshop February 7, 2001 NASA-GSFC HESSI High Energy Solar Spectroscopic Imager Use or disclosure of data contained on this page is subject to the restrictions on the volume cover Access to catalog data IDL> obj = obj_new(‘hsi_obs_summary’) IDL> data = obj -> getdata(obs_time_interval = ‘1-SEP-2000’+ $ [‘ 01:00’, ‘ 02:00’]) IDL> data= obj -> getdata(filename =‘hsi_ _0000_001.fits’) data is a structure with countrate and time To plot: IDL> obj -> plot

Page 15 HESSI Data Analysis Workshop February 7, 2001 NASA-GSFC HESSI High Energy Solar Spectroscopic Imager Use or disclosure of data contained on this page is subject to the restrictions on the volume cover Sample Obs Summary Plot

Page 16 HESSI Data Analysis Workshop February 7, 2001 NASA-GSFC HESSI High Energy Solar Spectroscopic Imager Use or disclosure of data contained on this page is subject to the restrictions on the volume cover Access to Catalog data (cont.) 5 objects in obs_summary, hsi_obs_summ_rate, hsi_obs_summ_flag, hsi_mod_variance, hsi_particle_rate, hsi_ephemeris For data structure: IDL> data = obj -> getdata(class_name = ‘obs_summ_rate’) For object reference: IDL> data = obj ->getdata(class_name = ‘obs_summ_rate’, /object_reference)

Page 17 HESSI Data Analysis Workshop February 7, 2001 NASA-GSFC HESSI High Energy Solar Spectroscopic Imager Use or disclosure of data contained on this page is subject to the restrictions on the volume cover Access to Catalog Data (cont.) Two more objects: hsi_obs_background, for each flare a background spectrum, same energy bands as the obs_summary, all detector segments hsi_flare_list Same syntax, getdata, plot, list, etc… Some other routines (Kim): hsi_ui_flarecat() is a widget interface, hsi_read_flarelist, hsi_select_flare, hsi_format_flare

Page 18 HESSI Data Analysis Workshop February 7, 2001 NASA-GSFC HESSI High Energy Solar Spectroscopic Imager Use or disclosure of data contained on this page is subject to the restrictions on the volume cover HSI_FILEDB Each file is recorded as an entry in the filedb structure. This is written into a FITS file, which is opened and read and rewritten for every ground station contact. The database file for all level 0 data will be distributed as part of the software. Contents: version = A version number file_id = file name orbit_start = Orbit number (from GDS) at start of the file orbit_end = Orbit number (from GDS) at end of the file start_time = data start time end_time = data end time status_flag = set to -1 if the file has been discarded, and the packets are contained in another file, set to 0 if the file exists npackets = Number of packets

Page 19 HESSI Data Analysis Workshop February 7, 2001 NASA-GSFC HESSI High Energy Solar Spectroscopic Imager Use or disclosure of data contained on this page is subject to the restrictions on the volume cover Simulating Data : Set "sim" keywords: See Also Sample: IDL> a = [0.1, 1.0, 0.1, 3.0, 60.0, 3.0, 10.0, 1.5] IDL> energy = 3.0+indgen(497) IDL> photon_flux = f_vth_bpow(e, a) IDL> o = obj_new('hsi_eventlist') (or o = obj_new('hsi_image')) IDL> o -> set, sim_background = 1.0, sim_ut_ref = anytim('31-aug :00'), sim_xyoffset = [-800.0, 200.0], sim_energy_band = [3.0, 500.0], sim_a2d_index_mask = bytarr(27)+1, sim_use_spectrum = 1, sim_atten_state = 1, sim_photon_flux_ptr = ptr_new(photon_flux), sim_photon_energy_ptr = ptr_new(energy)

Page 20 HESSI Data Analysis Workshop February 7, 2001 NASA-GSFC HESSI High Energy Solar Spectroscopic Imager Use or disclosure of data contained on this page is subject to the restrictions on the volume cover Simulating Data (cont): Changing the image model: Here is a double source: IDL> model = replicate({hsi_gaussian_str}, 2) IDL> model[0].ampitude = 1.0 IDL> model[0].xypos = [0.0, 0.0] IDL> model[0].xysigma = [5.0, 5.0] IDL> model[1].amplitude = 0.5 IDL> model[1].xypos = [20.0, 20.0] IDL> model[1].xysigma= [3.0, 3.0] IDL> o -> set, sim_model = model Also, you can pass in an image array with a number of point sources Curved gaussians (courtesy of M. Aschwanden) will be available soon

Page 21 HESSI Data Analysis Workshop February 7, 2001 NASA-GSFC HESSI High Energy Solar Spectroscopic Imager Use or disclosure of data contained on this page is subject to the restrictions on the volume cover Simulating Data (cont): IDL> ;get eventlist IDL> e = o -> getdata(/all, time_range = [0, 0], energy_range = [0, 0], $ a2d_index_mask = bytarr(27)+1) IDL> ;write out the eventlist IDL> o -> write, out_filename = 'hsi_10.fits', time_range = [0, 0] Instead of using the flux and energy keywords, we certainly could have used the spec_model and spec_pars keywords (with /sim_use_spectrum set), e.g., IDL> o -> set, sim_spec_model = 'f_vth_bpow' IDL> o -> set, sim_ spec_pars = [0.1, 1.0, 0.1, 3.0, 60.0, 3.0, 10.0, 1.5]

Page 22 HESSI Data Analysis Workshop February 7, 2001 NASA-GSFC HESSI High Energy Solar Spectroscopic Imager Use or disclosure of data contained on this page is subject to the restrictions on the volume cover Simulating Data (cont): We also can use sim_photons_per_coll as before: IDL> o -> set, sim_photons_per_coll = 1000, $ sim_bkgd_photons_per_coll = 100

Page 23 HESSI Data Analysis Workshop February 7, 2001 NASA-GSFC HESSI High Energy Solar Spectroscopic Imager Use or disclosure of data contained on this page is subject to the restrictions on the volume cover Simulating Flares: Hsi_sim_flare: Online, partially tested, includes input spectra in terms of photons/sec/keV/cm2, spectra in terms of spectral models and parameters different spectra and time histories for different sources, different Attenuator States, etc. IDL> hsi_sim_flare, /random_flare chooses random everything. IDL> spec_pars = fltarr(8, 3) IDL> spec_pars[*, 0] = [0.01, 1.0, 0.01, 6.0, 60.0, 6.0, 10.0, 1.5] IDL> spec_pars[*, 1] = [0.1, 1.0, 0.1, 3.0, 60.0, 3.0, 10.0, 1.5] IDL> spec_pars[*, 2] = [1.0, 0.2, 0.01, 6.0, 60.0, 6.0, 10.0, 1.5] IDL> hsi_sim_flare, spec_pars = spec_pars, flare_start_ut = '2-nov :00', flare_end_ut = '2-nov :12', flare_peak_ut = '2-nov :20' /neupert_effect keyword simulates the Neupert Effect See

Page 24 HESSI Data Analysis Workshop February 7, 2001 NASA-GSFC HESSI 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 Set (old, but still useful) hessi.ssl.berkeley.edu/data/test_data Includes 7 days (31-Aug,to 6-Sep-2000) Includes Level 0 files, daily catalog files hsi_flare_list, and hsi_filedb file To use: Load data into local directory Set $HSI_DATA_ARCHIVE to that directory Note that all of the features of the catalog data shown here are not in this data set. Every version of the Qlook software will be compatible with this data set. (Each qlook object and structure has a version number which is recorded in the FITS binary table for that object or structure. The information about which version is current is kept in the routine HSI_QLOOK_VERSION_CONTROL)