From freeland@sxt1.space.lockheed.com Wed May 17 08:30:44 1995 Received: from sxt1.space.lockheed.com by isass0.solar.isas.ac.jp; (5.65/1.1.8.2/01Feb95-0732AM) id AA15520; Wed, 17 May 1995 08:30:08 +0900 Received: by sxt1.space.lockheed.com (5.65/DEC-Ultrix/4.3) id AA14994; Tue, 16 May 1995 16:22:07 -0700 Date: Tue, 16 May 1995 16:22:07 -0700 From: freeland@sxt1.space.lockheed.com (Samuel L. Freeland) Message-Id: <9505162322.AA14994@sxt1.space.lockheed.com> To: acton@isass0.solar.isas.ac.jp Subject: re: xspr (spd files) Cc: hudson@isass1.solar.isas.ac.jp, software@isass0.solar.isas.ac.jp Status: R Loren - the 'jumping image' problem was due to an occasional and inadvertant change in the registration reference image for large arrays (memory management code). Fixed, and I regenerated the most recent 5 spds in addition to your specific trouble spd (/yd3/reformat/spd950513.1155)' - future spds should be ok. RE: spikes - I added despiking parameters and to the default spd configuration file: /ys/sxt/doc/spd.config. Although no SXT CO has actually touched this parameter file, it is designed to be tweaked by the CO to customize the spd contents (without changing any code). It can also be used as a template configuration file for other large spr reduction/analysis tasks - any spr file can be transformed into an 'spd' file via the call: IDL> mk_spd,'sprfile',outfile='spdfile' [, conf_file='configuration_file'] (where the configuration file may be and edited version of the default and they may be archived for future/repeated use) Regards, Sam. --------------------------------------------------------------------------- Here is the current spd configuration file - you might want to review the parameter values / selection criteria (and even change them if desired) % more /ys/sxt/doc/spd.config ..... ; -------------- FOV parameters ---------------------------------------- min_sep=1.0 ; minimum X/Y seperation between FOVs min_img=5 ; minumum number of images per FOV to include ; ---------------------------------------------------------------------- ;-------------- general parameters applied to all images --------------- tim2night=1.0 ; (in minutes) avoid occultation tim2fms=* rbm_status=* ; 0=nosaa, 1=saa, *=don't care recompress=1 ; 1=sxt_comp of sxt_prep output before save mem_img=1000 ; memory management (16-may - alpha optimized) ;----------------------------------------------------------------------- ;----------------- sxt_prep flags ------------------------------------- helio=1 ; correct for rotation normalize=1 ; normalize register=1 ; register despike_thresh=10 ; pass to de_spiker width=3 ; pass to de_spiker ; ---------------------------------------------------------------------- ; ----------- data filter (ss) definition ------------------------------ ; booleans in terms of 'index.sxt', 'roadmap' tags or gt functions ss gt_percentd=100. ; only include perfect images gt_filta=1 or gt_filta=5 ; slf, 11-dec use all Xray expmode=0 ; normal exposures only endss ;-----------------------------------------------------------------------------