National Aeronautics and Space Administration
Goddard Space Flight Center
Sciences and Exploration
Search:
[Advanced Search]
HEASARC Quick Links
---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
Skip Navigation (press 2)
HEASARC Home
Observatories
Archive
Calibration
Software
Tools
Students/Teachers/Public
Active Missions
Past Missions
Upcoming Missions
Comparison of Mission Capabilities
ACTIVE MISSIONS
AGILE
AstroSat
Chandra
Fermi
Hitomi
INTEGRAL
MAXI
NICER
NuSTAR
Swift
XMM-Newton
PAST MISSIONS
ANS
ARIEL V
ASCA
BBXRT
BeppoSAX
CGRO
COPERNICUS
COS-B
DXS
EINSTEIN
EUVE
EXOSAT
GINGA
GRANAT
HAKUCHO
HEAO-1
HEAO-3
HETE-2
OSO-7
OSO-8
ROSAT
Rossi XTE
SAS-2
SAS-3
Suzaku
TENMA
UHURU
VELA 5B
HEAO-1 Software:
Pre-defined Weights for the Discovery Scalars
from the "User's Guide to the HEAO A-2 Data Analysis System" June 23, 1988
[About HEAO-1]
[Archive]
[Software]
[Gallery]
[Publications]
