This document presents STScI policy for granting formal changes, additions, andalterations to accepted HST programs, as well as for repetitions of failed observations. Four types of request may be made by a GO, GTO, CS, or PC. ... The first type is a HOPR (HST Operations Problem Report), which describes an operational problem that occurred in obtaining data and which requests a repetition of the lost observation. ...

... A2358 Date Received: 2007-Sep-28 17:41:12 Technical Page Proposal Type: General Category: Sub-Category: Observation Category: Total Time Requested: Minimum Useful Time: Prop osal Title: ABSTRACT: Regular Astronomy Spectroscopy Galactic 10.5 Hours 80 minutes Follow-up Observations of Two Unanticipated HI Structures found by GALFA Our GALFA survey, with its unprecedented combination of high sensitivity and high angular resolution, is finding several types of completely unanticipated structure. ...

... Telescopes . ... The time requests are accepted in an electronic version with on-line form in Russian or English. ... Unregistered request will be disregarded by the Large Telescopes Programm Committee. In exclusive cases the secreatry of the Committee is entitled to accept an observational time request given permission of the Chairman of the Committee or the director of the SAO RAS. The Program Committee considers generally one time request submitted by the principal applicant. ...

... ATNF Home . About ATNF . ... About ATNF overview . ... Governance overview . Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Our people overview . ... Publications overview . ... ATNF facilities . ... Parkes radio telescope . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... Images . ... The MAPPIT (Masked APerture Plane Interference Telescope) instrument has been used for NRM observations at the 3.9m Anglo-Australian Telescope. ...

A R N 2 = = s a u 8 = = t d m = r i b M == = o o e a = ====== Space Astron r 28 y 2015 ====== =========== Center Newsletter =========== The RadioAstron AO-3 op en science program starts in July 2015 We are happy to report that RadioAstron operations are extended by Roscosmos until the end of 2016. ... Astro Space Center and its Russian and international partners have successfuly performed science experiments within approved AO-2 pro jects (see the list of pro jects in the RadioAstron Newsletter No. ...

I was wondering what conditions should be met to have the "darkest" sky .. ... Upon the above publication of the Southern Galactic hemisphere, TunГ Tezel started seeking opportunities to create the Northern counterpart image. ... So, the initial quest of having the darkest possible sky have delivered us these two all-sky images of the two galactic hemispheres as seen from Planet Earth. Zoomable and 'full-screenable' fisheye view of the "darkest sky" Southern Galactic Hemisphere image. ...

... Depending on the individual observation and on the requested timebinsize one can then create a GTI file via tabgtigen (e.g.): tabgtigen table=rate_bkg.fits gtiset=bkg_GTI.fits expression='COUNTS<200' or using the count rate column tabgtigen table=rate_bkg.fits gtiset=bkg_GTI.fits expression='RATE<60' where the output rate is in counts ks arcmin . ...

... Within the transnational Access program of SOLARNET, European investigators can apply for observing time with the European instruments IBIS and ROSA , which are installed at the Dunn Solar Telescope of the US National Solar Observatory ( DST/NSO ). ... Periodic calls for proposals will be published for requesting SOLARNET observing time with the European instruments IBIS and ROSA, installed at the Dunn Solar Telescope of the US National Solar Observatory (DST/NSO). ... SOLARNET Access . ...

... XRB SEDs | ... We would also like to be provided with spectral data in ascii format. ... Commonwealth High School senior, Alex Grant, has developed programs that will take any number of input ascii files (for example 3 [comprising radio, infrared, and X-ray data] or 8 [comprising radio, mmwave, far infrared, near infrared, optical, ultraviolet, X-ray, and Gamma ray data) in any units and combine and convert all to produce one file of Energy Flux (in Hz Jy) vs frequency (in Hz). ...

... Data processing and storage : · Processing time with Groningen cluster may exceed observation time , especially if thermal noise or high dynamic range or high resolution (international baselines) is requested · Other resources for data analysis should be investigated · Involvement of FZ JЭlich (1 PB storage and cluster processing ) is considered and will be tested, data transfer between Groningen and ...

After filling in and submitting this form it will be processed and sent to WDC for STP data manager responsible for the data of your interest. You will receive requested data by electronic mail according to your preference. ... High Atmosphere . ... Radiation Belts of Earth . International Geomagnetic Referece Field Model (IGRF) . Geomagnetic Field of the Earth (by N. A. Tsyganenko model) . E-mail . Additional arbitrary information can be written in the text window as follows. ...

Marc White . ... Turbulent entrainment processes may play an important role in the outflows from young stellar objects at all stages of their evolution. In particular, lateral entrainment of ambient material by high-velocity, well-collimated protostellar jets may be the cause of the multiple emission-line velocity components observed in the microjet-scale outflows driven by classical T Tauri stars. ... University of Amsterdam; STARPLAN, Copenhagen, Jul 2013 . ... E marc.white@anu.edu.au . ...

... An overall criterion for standard-star selection is the accuracy needed in the final results: if you need more accuracy, you will need more standard stars. ... While it is possible to get a rough estimate of the extinction by observing different standard stars at high and low airmasses, the relatively large conformity errors in most photometric systems, together with the low accuracy of some standards, make this method very inefficient (see Young [ 10 ], p.178). ...

... Solar Wind . ... During a total eclipse of the Sun, when for a few minutes the Moon completely covers the Sun's face, a glow appears around the darkened Sun--the solar corona, the Sun's outermost atmosphere. ... Such high levels of ionization require the atoms to be buffeted around by extremely high temperatures, around 1,000,000 C (1,800,000 F). ... It is brightest near sunspots, whose arched field lines apparently hamper the outflow of solar wind which carries away energy and helps cool the corona...

... Solar Wind . ... During a total eclipse of the Sun, when for a few minutes the Moon completely covers the Sun's face, a glow appears around the darkened Sun--the solar corona, the Sun's outermost atmosphere. ... Such high levels of ionization require the atoms to be buffeted around by extremely high temperatures, around 1,000,000 C (1,800,000 F). ... It is brightest near sunspots, whose arched field lines apparently hamper the outflow of solar wind which carries away energy and helps cool the corona...

... December 21, 1997 . ... Advantages are briefly discussed of gaining in spectral resolution, which is accompanied by losses in signal level, as compared with the attempts to improve the accuracy of measurement of line parameters by means of rising the S/N ratio alone with increasing the exposure time. To partially solve the problem of observations of faint objects at the BTA a new design echelle spectrometer is proposed. high resolution spectroscopy . ...

... As modern observatories evolve to production units delivering data products and calibrated scientific data to the end users, new challenges arise in assessing the quality of data products. ... Taking the analogy of speed control on a motorway we can describe the system as a device (radar) collecting measurements of the system performance (passing cars). ... One of the direct applications of quality control is the verification of instrument performance based on the analysis of calibration exposures. ...

... Search system . ... Forget-Me-Not" information and searching system is developed to store and to work with unstructured fascimile electronic copies of paper documents (e.g., books, newspapers, incoming and outcoming business documents, etc.) as well as text documents in Windows 95/98/NT environment. ... Incoming text documents are converted by means of the Box Manager, which is a part of the "Forget-Me-Not" information system, into a dynamic archive - a storage of the text information images. ...

Click here for more about this recent image from Shared Skies. Moore Observatory of the University of Louisville and Mt. Kent Observatory of the University of Southern Queensland support teaching and research by their students and faculty in programs in Astronomy, Physics, and Atmospheric Sciences. ... The wide field telescope in the roll roof and the CDK20 in the Sirius dome at Moore Observatory offer live real-time use to university students, and to secondary school teachers, on request. ...

ARCSAT ID NUMBER: AS02 DESCRIPTIVE TITLE: Accretion vs Magnetic Reconnection: Determining the Source of Periodic Variability in the Pre-Main Sequence Binary DQ Tau PI: Ben Tofflemire OBSERVER(S): Ben Tofflemire UNCERTIFIED/UNTRAINED OBSERVERS: N/A COLLABORATORS: Robert Mathieu CONTACT INFORMATION: tofflemi@astro.wisc.edu TIME REQUESTED: Monday , Oct 27th - Sunday, Nov 3rd (1 week, request use of all 7 full nights) Monday , Jan 12th - Sunday, ...