... Table of Contents - Subject Index - Author Index - Search - PS reprint - PDF reprint . ... We have undertaken a project to create a database of all HST imaging observations organized by position on the sky. ... These ``pointings tables'' enable quick identification of overlapping fields that can be used for multi-wavelength studies of objects and for variability studies by comparing images at given positions over different epochs. ... Users select the instrument pointings table they wish to search. ...

... Current APO Weather . ... Search Site . ... Information for New Users . ... Technical Staff pages . Night Logs and Mailing Lists (maintained by APO) . ... Technical Documents and Database Search . ... Observer's Documentation and Procedures . ... Problem Reporting and APO Technical Documents Database Search . ... APO Drawing/Document Management Procedures . ... APO Technical Documents Database Search . Home Astrophysical Research Consortium . ... Mail Lists (maintained by APO) . ...

ACS Insturment Handbook for Cycle 24 . ... Advanced Camera for Surveys Instrument Handbook for Cycle 24 > Chapter 7: Observing Techniques > 7.9 Parallel Observations . ... Parallel observing allows HST to operate several other instruments while the prime instrument is executing its observations. While the primary instrument observes a fixed target at user-specified coordinates, the parallel instrument observes at coordinates 5 to 10 arcminutes away, depending on the parallel instrument. ...

OptInt PmWiki . ... MROI Delay Line Design Contract . ... Systems Engineering Docs . ... MROI FTT Contract Private Material . ... Doc Man . ... 1100 FTT/NAS . ... 1120 Camera . ... 1170 Test Equipment . ... MRO-TRE-CAM-0000-0102 FTT/NAS Conceptual Design Report . ... MRO-ICD-CAM-1000-0109 "FTT/NAS,FLC-UTE" FTT/NAS & FLC to Enclosure ICD . MRO-ICD-CAM-1000-0110 "FTT/NAS,FLC-NOT" FTT/NAS & FLC to optical table ICD . MRO-ICD-CAM-1000-0111 "FTT/NAS,FLC-UT" FTT/NAS & FLC to UT optical ICD . ...

... Science . ... Science Users Information > Observing Facilities > Instrumentation Development > VLT/Instrument Interfaces . ... APEX Visitor Instrument . ... The interfaces between the VLT Unit Telescopes and the scientific instruments to be operated at the VLT Cassegrain, Nasmyth and Coudц© foci are well defined. ... Interface and numerous other relevant information for instrument builders is available in the "Requirements for Scientific Instruments on the VLT Unit Telescopes" , ESO doc. no. ...

. XMM-Newton Science Analysis System . omdetect (omdetect-5.14.2) [???] . Meta Index / Home Page / Source Flagging Algorithms The algorithm checks to see if any pixels assigned to the point source overlap with any pixels assigned to an extened source- if so the flag is set. This check is not carried out on sources with quality bit 4 set (mod-8 source). XMM-Newton SOC/SSC -- 2008-10-22

... The choice of which type of electricity is called "positive" and which "negative" was made around 1750 by Ben Franklin, early American scientist and man of many talents (the stamp on the left commemorates his role as first US postmaster--and colonial postmaster before that). ... Franklin knew of two types of electric charge, depending on the material one rubbed. ... Later, when electric batteries were discovered, scientists naturally assigned t