Date: Thu, 18 Oct 2001 23:33:01 -0700 From: "Samuel L. Freeland" FYI: ACE access within SSW environment ACE time series data for SWEPAM, EPAM, SIS, and MAG are now available through SSW and SSWDB infrastructure. The interface routine accepts a user time-range and desired ACE instrument switch and returns -ready structures for display, overplot, or correlation with other SSW image or time series data sets. For example, to plot the most recent five days of solar wind speed data: --------------------------------------------------- IDL> acedata=get_acedata(reltime(days=-5),reltime(/now),/swepam,/daily) IDL> utplot,acedata,acedata.b_speed,title='ACE/SWEPAM',$ ytitle='Bulk Speed (Km/Hr) --------------------------------------------------- Please feel free to contribute things like DST derivation routines (IDL if available) which we may include in future SSW distributions. Here are example get_acedata calls for each ACE instrument and output: IDL> help,get_acedata(reltime(days=-3),reltime(/now),/swepam,/daily),/str ** Structure MS_056831131001, 5 tags, length=24: MJD LONG 52191 TIME LONG 66300000 P_DENSITY FLOAT 6.60000 B_SPEED FLOAT 451.800 ION_TEMP DOUBLE 92100.000 IDL> help,get_acedata(reltime(days=-3),reltime(/now),/epam,/daily),/str ** Structure MS_056831148002, 10 tags, length=72: MJD LONG 52191 TIME LONG 66300000 E38_53 DOUBLE 9640.0000 E175_315 DOUBLE 241.00000 P47_65 DOUBLE 1360.0000 P112_187 DOUBLE 458.00000 P310_580 DOUBLE 215.00000 P761_1220 DOUBLE 99.800000 P060_1910 DOUBLE 40.600000 ANIS_RATIO FLOAT 0.570000 IDL> help,get_acedata(reltime(days=-3),reltime(/now),/sis,/daily),/str ** Structure MS_056831162003, 4 tags, length=24: MJD LONG 52191 TIME LONG 66300000 P_GT10MEV DOUBLE 2.1100000 P_GT30MEV DOUBLE 0.62800000 IDL> help,get_acedata(reltime(days=-3),reltime(/now),/mag,/daily),/str ** Structure MS_056831169004, 7 tags, length=28: MJD LONG 52191 TIME LONG 66240000 BX FLOAT -6.20000 BY FLOAT 6.10000 BZ FLOAT 2.20000 LAT FLOAT 9.00000 LONG FLOAT 14.4000 ACE data access assumes local sites include ACE dbase descriptors in site sswdb_upgrade.pro configuration file per: http://www.lmsal.com/solarsoft/sswdb_description.html ; overview http://www.lmsal.com/solarsoft/sswdb_configure.html ; site config. [ currently enabled at GSFC/EAF, LMSAL & ISAS SSW sites ]