... A data set contains a science frame, all its associated raw calibration frames and the master calibration frames created by combining and processing the raw calibration frames. ... Either one creates a MIDAS catalogue which contains the names of all single calibration frames to be combined in to the master frame, or, in the case of pipe line reduction, one use the Association Table. ... The names of single calibration frames are however also available in the Association Table. ...

Chapter 2: Header Keyword Definitions . ... T/F- Was the observation an association? ... Looking at the ASN_MTYP and EXPNAME keywords for each extension of the n48o06020_jif.fits file, we see... n48o06020_jif.fits [1], ASN_MTYP = EXP-TARG EXPNAME = N48O06G9J n48o06020_jif.fits [2], ASN_MTYP = EXP-TARG EXPNAME = N48O06GAJ n48o06020_jif.fits [3], ASN_MTYP = EXP-BCK1 EXPNAME = N48O06GBJ n48o06020_jif.fits [4], ASN_MTYP = EXP-BCK1 EXPNAME = N48O06GCJ n48o06020_jif.fits [5], ...

... 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. ...

SAS home . SAS Watchout items . ... This thread contains a step-by-step recipe to extract a light curve of a point-like source for all the X-ray cameras, subtracting the background and correcting for exposure loses. ... The SAS task barycen performs this correction. ... If the following files are available: a) RGS event list; b) RGS source list, a call to the task performing light curve extraction, correction and background subtraction rgslccorr allows a user to create the light curve. ...

... 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. ...

Next: *imcalc* - Obtain a Up: Calibration Previous: Exposure Map . Background maps are provided by the standard processing for all ROSAT and Einstein instruments. For the PSPC and IPC these are in three standard bands: soft, hard, and broad (Table 6.2). ... N.B.: ROSAT PSPC background maps in SASS 5-6 or higher are generated by smoothing a source-subtracted, exposure corrected image (see the ROSAT Data Products Guide). ... imcalc* - Obtain a background subtracted image for ROSAT PSPC Data . ...

... 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 . ...

Next: Status and Goals of Up: NICMOS Data Calibration and Previous: NICMOS Data Calibration and . ... CALNICB Processing . ... Combining NUMITER Images . ... The Space Telescope Science Institute (STScI) data reduction and calibration pipeline for the Near-Infrared Camera and Multi-Object Spectrometer (NICMOS) is composed of two major tasks, CALNICA and CALNICB. ... NICMOS, calibration, pipeline, software . ... CALNICB combines images into mosaics and also removes background signal from the images. ...

The NTP standard specifies an extension which provides cryptographic authentication of received NTP packets. ... The specification allows any one of possibly 4 billion keys, numbered with 32-bit key identifiers, to be used to authenticate an association. ... In the case of MD5, the keys are 64 bits (8 bytes). xntpd reads its keys from a file specified using the -k command line option or the keys statement in the configuration file. ... A zero key in NTP format would be specified as 8080808080808080 . ...

... Galaxies 99 Cosmic background with model of cloudy interstellar medium Yu. ... Figure 1: Averaged spectrum of the cosmic background I f in frequency range 0.25 200 MHz for the Galactic poles. ... First interpretation of the cosmic noise background spectrum at broad band frequency range 0.25 200 MHz with a model of the cloudy interstellar medium ISM is presented here. ... Synthesized background spectra I f for regions of the Galactic poles at the frequency range 0.25 200 MHz is presented in Fig. ...

... Files . ... File List . File Members . casa . Containers . ... National Radio Astronomy Observatory 00023 //# 520 Edgemont Road 00024 //# Charlottesville, VA 22903-2475 USA 00025 //# 00026 //# $Id: PoolStack.h 20551 2009-03-25 00:11:33Z Malte.Marquarding $ 00027 00028 #ifndef CASA _ POOLSTACK _H 00029 #define CASA _ POOLSTACK _H 00030 00031 //# Includes 00032 #include casa /aips.h 00033 #include casa / Containers /Block.h 00034 00035 namespace casa { //# NAMESPACE ...

A primitive guider for Agile that works from science images. The guider is primitive because the guide loop is in TUI instead of in the hub where it belongs. ... Specify a guide star (set Star Pos and Centroid Rad ) one of two ways: . ... Then for every Agile image the guider will try to centroid a star at Star Pos and offset the telescope (using boresight offsets) to center the star at that position. ... The guider never modifies any entry field (Star Pos and Centroid Rad) unless Find is checked. ...

T he Siding Spring Survey (SSS) is a Near-Earth Object search program that utilises the 0.5-m Uppsala Schmidt Telescope at Siding Spring Observatory, N.S.W., Australia. ... The mission of the Siding Spring Survey is to contribute to the inventory of near-earth objects (NEOs), or more specifically, the potentially hazardous asteroids (PHAs) and comets (PHOs) that may pose a threat of impact and thus harm to civilization. ... Based on the CSS Mission page . ... Siding Spring Survey Main Page . ...

НАУЧНО-ПРОИЗВОДСТВЕННОЕ ОБЪЕДИНЕНИЕ им. С.А. ЛАВОЧКИНА . ... ЭкзоМарс 2016 . ... Социальные проекты . ... Проекты . ... ФГУП 'НПО им. С.А. Лавочкина' - крупное конструкторское и научно-производственное предприятие, проводящее работы по проектированию, изготовлению, испытанию и комплексной отработке ключевых автоматических космических аппаратов для фундаментальных научных исследований. ... Новости Проекты . ... 2016, ФГУП "НПО им. С.А. Лавочкина" - все права защищены ? ...

... Club By-laws . ... Other Club Activities . ... Public Nights . ... Dr. James Green, NASA, Director Planetary Science will be our esteemed speaker on Tuesday, April 12, 2016 at 7:30 PM in Peyton Hall on the Princeton University campus. ... Our astronomers setup telescopes for public use at Communiversity in Princeton, Super Science Saturday at the NJ State Museum in Trenton and at various public events around Mercer County. ... Amateur Astronomers Association of Princeton, Inc., ...

Next: Observing the Old-Fashioned Way (Gui-Free Observations) Up: Spectral Line Appendices Previous: OLD Basic Analyz Routines For use with data taken BEFORE March 6, 2000 . This appendix contains example analyz sequences used to look at HI spectra. ... Additionally, if you have not run analyz before, instruction (2) should read: If you have not, instruction (3) should read: . ... 7) redln < rec < n : This first stores the individual ON/OFF - 1 data dumps into registers 100 - 100+ - 1. ...

Next: The root filesystem Up: Overview of the Directory Previous: Overview of the Directory . This chapter is loosely based on the Linux filesystem standard, FSSTND, version 1.2 (see the bibliography, [ Qui95 ]), which attempts to set a standard for how the directory tree in a Linux system is organized. ... This chapter does not explain all files in detail. ... The major parts are the root, /usr љ , /var љ , and /home љ filesystems (see figure 2.1 ). ... Figure 2.1: Parts of a Unix directory tree. ...

The overall efficiency (including atmospheric transmission, reflectivity of the telescope mirrors and overall efficiency of the optics and of the detector) for broad-band imaging should be about 25% in H and K, and about 15% in J. The main noise source for both broad- and narrow-band imaging should be the photon noise associated to the background+source flux. ... Flat fielding (and possibly background subtraction) might increase the noise by a factor 2 ? ...

... The predicted magnetic conjugations correspond to the less then 5 deg relative geocentric angular distance of the two satellites magnetic footprints. ... Universal time) . ... the difference between two satellites corrected geomagnetic local times (see as well column 11) . ... the difference between two satellites corrected geomagnetic latitude (see as well column 12) . ... the satellite geographical latitude . ... the corrected geomagnetic local time . ... the corrected geomagnetic latitude . ...

Next: RSOG Pre-Observation Products . ... Mission Elements . ... The main mission elements (ME) are: . The RSOG, based at ASC, which is responsible for the science operation of the RadioAstron Mission. ... The Main Ballistic(Navigation) Center (MBC) belonging to Lavochkin Association coordinates preparation and exchange of orbit determination and orbit reconstraction ptoducts. ... Experiment codes of five characters are used in naming GRT related files. ... RSOG . ... Corr (GTS?) ... Corr (RSOG?) ...