... The association process creates an output table that contains the following columns: . A character column labeled :SCI containing the names of the scientific frames. ... A character column labeled `exptype' (i.e DARK, FF, etc) containing the names of the associated exposures . An integer column QUAL_`exptype' (i.e QUAL_DARK, QUAL_FF, etc) containing for each associated frame its quality flag. ... Figure: Association of DARK exposures with scientific frames . ...

... Observing . ... Solar Observing . ... April 3 (SUN) - Solar Observing, Central Park , Manhattan . ... APRIL'S SKY . ... Lecture Series at the American Museum of Natural History The Amateur Astronomers Association is proud to present an astronomy lecture series from October through May each year for our members and the .. ... The€аAmateur Astronomers Association of New York€аwas organized in 1927 to promote the study of Astronomy, emphasizing its cultural and inspirational value. ...

... The association log contains a list of calibration products used to process a raw file (or a set of raw files). ... The header of the association log contains the name of the association block , a data type tag, a setup tag, and the flag COMPLETE or INCOMPLETE (in case of missing calibrations). ... FLAG: not relevant here (always REAL) . ... OK MCALIB REAL GI_PFEE_071012A_Medusa1_L543.1nm_o3.fits FF_EXTERRORS 0.458 OK MCALIB REAL GI_PDIS_071012A_Medusa1_L543.1nm_o3.fits DISPERSION_SOLUTION 0.462 . ...

... Associated with each astrometry observation is the Support Schedule file, with suffix .dmh . ... Contained within are keywords and values which repeat some of the information in the FGS header files, such as the HST state vector. More importantly, the contents of this file can be used to map a specific FGS observation to the proposal's Phase II exposure log sheet. ... Observers should review the contents of both the .a3h and .dmh files, which can be done using imheader as above. ...

... The processing of these associated images presents new challenges to the HST data processing pipelines, which heretofore operated only on single images. ... Stage 1 (CALNICA) calibrates individual exposures without information from other members of the association. ... Stage 2 of calibration (CALNICB) only operates on associated images that have previously gone through CALNICA processing, and creates combined images for each distinct (non-overlapping) pointing within the association. ...

... Classes . Files . ... File List . ... casa . Containers . ... National Radio Astronomy Observatory 00023 //# 520 Edgemont Road 00024 //# Charlottesville, VA 22903-2475 USA 00025 //# 00026 //# $Id: HashMapIO.h 20551 2009-03-25 00:11:33Z Malte.Marquarding $ 00027 00028 #ifndef CASA _HASHMAPIO_H 00029 #define CASA _HASHMAPIO_H 00030 00031 00032 #include casa / Containers /HashMapIter.h 00033 00034 00035 namespace casa { //# NAMESPACE CASA - BEGIN 00036 00037 // summary 00038 // ...

... Early studies of PMS stars focused on T associations, especially Taurus-Auriga. However, one might expect low mass star formation to be different in OB associations. ... He identified Orion OB1a as the stars northwest of the belt. Orion OB1b is composed of the stars near the belt, including the belt stars and Orionis. ... He finds no perceptible distance change within the Orion OB1b association and finds the distance modulus to be 7.8 and 7.9 for Orion OB1a and OB1b respectively. ...