... omgchain (omgchain-1.8.1) [?? Meta Index / Home Page / Grism chain procedure . The task omgprep introduces some changes into the grism image files which are necessary for running the source detection and spectral extraction tasks. ... The image is then corrected for distortion. ... The original unrotated image is shown in Fig. ... Images prepared for running the source detection and spectra extraction tasks are shown in Fig. 4 (for the visual grism) and 7 (for the UV-grism). ...

Next: Getting the Dispersion Up: Geometric Correction Previous: Geometric Correction . For optimum results, it is important to use a comparison spectrum with as high a signal-to-noise ratio of the lines as possible. ... The algorithm detects lines whose strength exceeds a certain threshold (parameter THRES ) above the local background. ... The command IDENTIFY/LONG allows an initial interactive identification, by wavelength, of some of the detected lines. ...

... LABORATORY OF RADIO ASTRONOMICAL OBSERVATIONS . Radio sources identification is one of the most important tasks of the current radio astrophysics. ... Optical idetification. ... Optical identifications of subsample of steep spectra radio sources from RC catalog using 6m SAO telescope of SAO RAS: optical observations. ... Astronomy Reports. ... Identification of radio sources with data of various radio catalogs allows one to construct continual spectrum of the object and its radio structure. ...

... L-Wide . ... Receiver History . ... Available Filters: . ... Use with e.g. filter 5) NOTE 2 1120-1220 3 1230-1470 4 1550-1820 5 1100-1800 6 1360-1470 7 1320 hipass NOTE 8 1180-1280 9 1280 hipass (ext Output unit. ... Consequently, the calibration for data collected using the hipass 1320 and the hipass 1370 filters only will be mis-calibrated (i.e. by using the opposite polarisation calibration data). ... It is now possible to select any bandpass filter that is not in the 1320 hipass band. ...

... astrometric coordinates Pro: measures exactly what you want to check Con: more labor intensive and not possible/feasible in most cases Guidestar Separations Guide Star Pair Fit Error during 2005 GSC1 Ops 2 1.8 1.6 1.4 1.2 1 0.8 0.6 0.4 0.2 0 - 0.2 - 0.4 - 0.6 - 0.8 -1 - 1.2 - 1.4 - 1.6 -1.8 -2 2005 2005.1 2005.2 2005.3 2005.4 2005.5 2005.6 2005.7 2005.8 2005.9 2006 Guidestar ... Guidestar pair statistics, sorted by FGS, gives information to facilitate alignment. ...

Next: Frequency Frame Alignment Up: Calibration Previous: Unit Conversion Index . As higher frequencies (particularly 20 GHz) it is important to make corrections for atmospheric opacity and gain-elevation effects. ... This means that gain-elevation and opacity corrections will not work unless these get recalculated. ... Gain-elevation curves for some telescopes and frequencies are known to ASAP (currently only for Tidbinbilla at 20 GHz and Parkes at K-band). ... ASAP>scans.opacity(0.083) . ...

Next: Sample Properties Up: Sample Identification Previous: Comments on Individual Sources . Previously known serendipitous sources were selected by cross-correlating WGACAT with a variety of optical and radio catalogs, including the Ver?n-Cetty & Ver?n (1996) and Hewitt & Burbidge (1993) quasar catalogs, the 1 Jy (Stickel et al. 1994) and S4 (Stickel & K?hr 1994) radio catalogs, and the BL Lac catalog of Padovani & Giommi (1995b). ... Details of these 97 objects are given in Table 6. ...

Next: Status of the BIMA Image Pipeline . ... We describe all the steps of the standard reduction including per pixel error propagation: Bias correction, treatment of bad pixels, flatfielding, and filtering of cosmic ray events. ... We build difference images via image convolution with a technique called OIS (optimal image subtraction, Alard & Lupton 1998), proceed with PSF-fitting, relative photometry on all pixels and finally apply an automatic detection of variable sources. ...

Next: ST-6 Data Collection Up: Data Acquisition Previous: Data Acquisition with . ... The tracking software is extremely important to data collection, and will be presented here. The tracking software is run from the CPU box. ... The exposure adjust will set the exposure time. ... After the drive is calibrated, the track button will set the ST-4 in a mode where it will track the star until it either loses track or the operator stops the track. ...

spaceweb@oulu.fi - last update: 21 December 1998, 1400 UT (RR) . ... This is not as trivial a question as one might think, since it is not enough to know the location with respect to the Earth and/or the Sun in some arbitrary coordinate system. One may have to consider things like differences between the solar equatorial plane and the Earth's orbital plane, the changing direction of Earth's spin axis during the year, and the magnetic dipole orientation. ... Geocentric solar ecliptic . ...

Searching for GRB -GWB coincidence during LIGO science runs Isabel Leonor University of Oregon LIGO-G050216-00-Z Motivation almost 40 years since GRBs were discovered past 15 years has been time of important clues isotropic and inhomogeneous distribution (BATSE); first optical, x-ray, radio counterparts; redshift measurements; association with core-collapse supernovae yet important ...

Next: Major services in a Up: Overview of a Linux Previous: Various parts of an . The Linux kernel consists of several important parts: process management, memory management, hardware device drivers, filesystem drivers, network management, and various other bits and pieces. ... Figure 1.1: Some of the more important parts of the Linux kernel. Probably the most important parts of the kernel (nothing else works without them) are memory management and process management. ...

... Meade Instruments Corporation . Telescopes ћ Binoculars ћ Microscopes . ... ETX-90AT and Autostar Frequently Asked Questions . ... Which of the Autostar alignment procedures is recommended for viewing celestial objects right out of the box? When using Autostar, how important is leveling the telescope and pointing it to true north before alignment in the Alt/Az or Polar modes? ... Meade ETX-90EC Astro Telescope . ... Copyright 2006 Meade Instruments Corporation, All Rights Reserved. ...

. Departement of Quantum Astrophysics . Head: Kurt V.G. , Prof. ultraviolet spectroscopy of planetary upper atmospheres and interplanetary/interstellar medium; . observations of gamma-bursts and optical identification of their sources; . long-base optical interferometry. Staff: .

... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... OAO RSC "Energia" . ... Important Anniversaries of the Corporation . 2012 . ... May 15, 2012 - 25 years since the first launch of extra-heavy Energia LV with Pole SC. ... January 12, 2012 - 105 years since the birthday of the Chief Designer of rocket and space technology , the founder of practical cosmonauts, founder and lead of ОКБ-1 (S.P.Korolev RSC Energia), Academician Sergey Pavlovich Korolev . ... 2015 JSC "S.P. Korolev RSC "Energia" . ...

. There may be security measures or other authentication procedures in use at your site that prevent you from using the rcp command to copy files from one host to another. Check with your local system administrator to find out what the situation is on your system.

... REGISTRATION . ... 119991, Leninski prospekt 53, Moscow, Russia . ... From radio to gamma rays results from space and ground based solar observatories . ... The Sun with high temporal and spatial resolution new look from SDO . ... Towards the Sun: InterHelioProbe, Solar Orbiter, PROBA-3, Solar Probe + . ... The Sun as a star: solar cycle and space weather . ... Head: E. DeLuca (SAO, USA), V. Kuznetsov (IZMIRAN, Russia) . ... June 1, 2011 (Wen) . ... Online publication of the workshop's program . ...

Astronomy Picture of the Day . The Case of the Missing Supernova Companion . ... Credit Copyright: X-ray: NASA / CXC / SAO / J. Hughes et al., Optical: NASA / ESA / Hubble Heritage Team ( STScI / AURA ) Explanation: Where's the other star? At the center of this supernova remnant should be the companion star to the star that blew up. ... This indicates that the companion is intrinsically very faint -- much more faint that many types of bright giant stars that had been previous candidates. ...

... My thesis aims to understand the energetics and composition of the jet near its origin, and its interaction with the ICM , focusing on detailed models of the inner structure of a spectacular radio source Hydra A. The key features of my modelling are that 1) I identify the four bright knots in the northern jet of Hydra A as biconical reconfinement shocks, which result when an over-pressured jet starts to come into equilibrium whit the galactic ...

Weak lensing study of low mass groups: implications for m H. Hoekstra et al. ... We stack the signals of an ensemble of 59 groups, and measure their average mass and mass-to-light ratio. The galaxy properties of the groups resemble closely that of the eld, and the average group mass-to-light ratio provides a way to estimate the eld mass-to-light ratio. Also the average group mass-to-light ratio yields an estimate for the density of the universe. ...