... The event list and the region speci cations in the source list are used to create the RGS image and spectrum products. ... Refer to the index of all errors and warnings available in the HTML version of the SAS documentation. ( error ) Event list name does not have the correct format. ( error ) Couldn't run evselect to make `banana' ts image . ( error ) Couldn't run rgsimplot to make `banana' gif image . ( error ) Couldn't move `banana' image to product path. ( error ) ...

STEP INTO THE BLUE - MEADE INSTRUMENTS PRODUCT GUIDE . ... Telescopes . LX850 Series . ... Superb optical performance coupled with time proven computerized pointing and tracking has made the LX200 ACF series a best-seller in the high-performance telescope class. ... Meade's revolutionary LS LightSwitchтДв series of telescopes use advanced technologies to do what no other consumer telescopes have done before: take all the hassle out of using a telescope. ... Coronado€о Solar . ... Spotting Scopes . ...

... Science Users Information > Data Handling and Products > Science Data Products Forum . ... Science Software . ... Science Data Products Forum . ... The ESO Science Data Products Forum is a platform for sharing ideas,methods, software and data to assist with the production of science data products from ESO telescopes. ... Software, calibration data or documents up to 100MB in size can be attached to any post.This forum is not meant to distribute scientific results or data products to the community. ...

WFC3 Instrument Handbook for Cycle 24 . ... Wide Field Camera 3 Instrument Handbook for Cycle 24 > Glossary . ... aXe : Spectroscopic Data Extraction Software . ... CSM : Channel select mechanism . ... GSFC : NASA?s Goddard Space Flight Center . Help Desk: Facility for getting help on HST related topics via email. help@stsci.edu. ... HST : Hubble Space Telescope . ... STSDAS : Space Telescope Science Data Analysis System. ... WFC : Wide-Field Channel of ACS . WFC3 : Wide Field Camera 3 . ...

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... The J, H and K bands are characterized by a bright background, such a background is mainly due to the emission of atmospheric lines and of thermal radiation. ... If the source cover a large fraction of the slit, spectra off-source must be observed to adequately sample the sky background. ... The on chip integration time (time spent in each position of the slit) must not exceed 40 seconds in J and H bands and 60 seconds in K band. ... We suggest a sequence of 10 for each elementary integration time. ...

Displays the current status of Echelle spectrograph and allows you to change the configuration. ... Select TUI:Save Window Positions to remember the state of this checkbutton. ... The contextual menu on each control can return that control to the current setting of the instrument. ... Note that it saves the state of the controls, not the actual state of the instrument, so you can save any preset you like without commanding the instrument. ... Then change any controls you like and press Apply to apply. ...

... champ name : Source ID in the format explained in the Definitions section. ra : RA in decimal degrees. ... pos_error : Source count extraction radius in arcseconds. netB : net counts in B-band. See Definitions section. error_netB : error of net counts in B-band. see Definitions section. netS : S-band net counts, defined analogously to netB . ... See Definitions section. C21 : X-ray color. ... C32 : X-ray color. See Definitions section. rateB : B-band count rate in ksec. ...

Next: Kalman Filtering in Chandra Aspect Determination . ... The Science Instrument (SI) background monitoring is one such thread that is designed to compile a temporally and spatially ordered table of the observed flux and energy spectrum in detector coordinates. ... As part of the M&TA System (Wolk et al. 2000) the SI Background (SIB) monitoring thread is based on C++ tools designed with object oriented design methodologies that provide flexibility for generating SIB maps. ...

... Tonight's Sky . ... The Magazine . ... Observing . ... Magazine . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Open cluster NGC 2818, spiral galaxy NGC 2964, and spiral galaxy NGC 2976 . ... Astronomy for Kids . ... Meade Instruments Corp. ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ... Astronomy Magazine . ...

... European Remote Sensing Satellite (ERS-1) was launched on 17 July 1991, and the follow mission ERS-2 (with the same sensors and an Ozone monitoring instrument added) was launched on 21 April 1995. ... ERS-2 has a fixed repeat cycle of 35 days, and follows ERS-1 tracks with one day's delay. ... Swath width is 102.5 km (telemetered), spatial resolution is about 25x25 m. The Advanced SAR (ASAR) instrument is carried by ESA's ENVISAT satellite launched on 1 March 2002. ... Swath . ... Spatial Resolution...