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---Quick Links--- ---Archive Interfaces--- Argus: proposal info Browse: search HEASARC archives NVO DataScope SkyMorph: search variable objects SkyView: virtual observatory Xamin: powerful archive search ---Software & Tools--- CalDB: Calibration database Coordinate Converter Energy Converter FITS: standard data format FITSIO: FITS subroutine library FTOOLS: general s/w for FITS files fv: FITS file editor Hera: remote data analysis service HEXTErock nH: Column Density RPS proposal submission RXTE ASM weather map Time/Date Converter (xTime) Timeline (RXTE, Swift, & HETE-2) Viewing: possible obs. times WebPIMMS: flux/count converter WebSpec: spectral sims Xanadu: data analysis suite X-ray Background Tool X-ray, Gamma-ray, EUV Source Finder ---Resources--- Bibliography Contact Info Deadlines (proposals & meeting regist.) History of High-Energy Astronomy Staff Upcoming Meetings Upcoming Summer Schools What's New ---Education & Pub. Outreach--- APOD: Astronomy Picture of the Day Ask an Astrophysicist HEASARC Picture of the Week Images, Spectra, Light Curves Imagine the Universe! StarChild (K-8 EPO) WebStars: gen. astronomy info/news