... The flats are obtained with the DEUTERIUM-lamp and the MR grism G230M. The actual choice of central wavelength and slit combination depends on the observed count level within each exposure. ... However the actual instrument setup (central wavelength and slit width) and exposure time might change during the cycle in order to guarantee the needed count-level of ~250000-280000 cps/frame. ... NONE (De lamp) RA.. ... Table of exposures (copy for each exposure as appropriate/desired): Target or lamp.. ...

Next: What was the Up: Observational data Previous: Observational data . A certain minimum set of data is required to make observations reducible. These are the identity of the object measured; the identity of the bandpass in which the measurement was made; the time of the observation; and, for integration-type measurements, the duration of the integration. Table describes the basic table-file columns in detail. ... Pascal Ballester . Tue Mar 28 16:52:29 MET DST 1995 ...

... Archives . ... Astronomers confront with various censored and truncated data. ... This area is called survival analysis . If your library has The American Statistician subscription and you are an astronomer handles censored or truncated data sets, this primer would be useful for briefly conceptualizing statistics jargon in survival analysis and for characterizing uncertainties residing in your data. Survival Analysis: A Primer by David A. Freedman . ... Chandra Blog . ... SAMSI AstroStat Prog. ...

... Thus the FTE described below must be added to the AOF FTE budget. ... Activity Scientist overview of changes (R7M) Observing preparation tool ( section 15.1) Instrument Control Panel ( section 15.2) Modification of AOF / Hawk-I acquisition template ( section 15.3) Site quality monitoring and display ( section 15.5) Exposure Time Calculator ( section 15.6) Modification Observing Tool (OT3) ( section 15.8) TOTAL FTE effort 1 0.1 0.3 0.3 0.3 0.2 0.3 2.5 ...

... Hobby Eberly Telescope, RLM 15.308 University of Texas, Austin, TX 78712, Email: niall@astro.as.utexas.edu . ... We describe our recent software effort to enable queued observations on the Hobby Eberly Telescope. ... The Hobby Eberly Telescope (HET) (Sebring & Ramsey 1994) is a 9.2 meter optical telescope currently undergoing scientific commissioning in west Texas. ... Once fully operational, this telescope will operate in a queue scheduled, service observing mode 85% of the time. ... flux of object...

... About ATNF overview . ... Staff list | ... The following table indicates the SCHED estimates of disk space that the included stations would require for all three Cir X-1 ToO VLBI sessions (4,6,8 November) if we go for 256 Mbps. ... Next message : jon_at_email.protected: "Re: Disk space required for Cir X-1 ToO VLBI" . ... Next in thread : jon_at_email.protected: "Re: Disk space required for Cir X-1 ToO VLBI" . Maybe reply : jon_at_email.protected: "Re: Disk space required for Cir X-1 ToO VLBI" . ...

Next: GOCG Pre-Observation Products . Previous: RadioAstron Mission Element Overview . ... Observation Summary File (OSF) . GRT (Ground Radio Telescope) Schedule Files . ... How: The long-term schedulers will produce two files: GSTS-file (General Space Telescope Schedule) to be used by GOCG and LTS-file for all mission elements. ... What: The RSOG will produce schedule files for all GRTs participating in a particular observation, in the format required by each GRT. ...

... SGML . The text/html content type . In this section, we begin the specification of HTML 4.0, starting with the contract between authors, documents, users, and user agents. ... These recommendations are not normative and conformance with this specification does not depend on their realization. ... An HTML document is an SGML document that meets the constraints of this specification. ... A user is a person who interacts with a user agent to view, hear, or otherwise use a rendered HTML document. ...

Proposal Identification No.: ... Proposal Type: General Category: Observation Category: Time Requested this semester: Hours Next Semester: Hours already used for this pro ject: Additional Hours required to complete pro ject: Minimum Useful Time : Expected Data Storage: Prop osal Title: Regular Pulsars Galactic 54.5 24 0 0 1 hour less than 100 GB Followup Timing of 12 Discoveries from the Arecibo Observatory 327 MHz Drift Survey ABSTRACT: The Arecibo Observatory 327 ...

... Our Galaxy . ... Stars . ... Image credit: ESO, Acknowledgement: VST/Omegacam Local Group Survey) . First observed in 1909, the WLM galaxy is part of the Local Group, about 10 million light years (3.1 Mpc) across, this is the set of more than 35 galaxies which includes our own Milky Way. ... I compared this little galaxy to a living fossil because looking at it gives us an insight into a past era in the UniverseтАЩs history. ... Distances and metallicities for 17 Local Group galaxies? . ...

... Apache HTTP Server Version 2.4 . ... This page could be summarized with the statement: don't configure Apache HTTP Server in such a way that it relies on DNS resolution for parsing of the configuration files. If httpd requires DNS resolution to parse the configuration files then your server may be subject to reliability problems (ie. it might not start up), or denial and theft of service attacks (including virtual hosts able to steal hits from other virtual hosts). ... The "main server" Address . ...

... The Phase II Language for the Hobby # Eberly Telescope Niall I. Ga#ney Hobby # Eberly Telescope, RLM 15.308 University of Texas, Austin, TX 78712, Email: niall@astro.as.utexas.edu Mark E. Cornell McDonald Observatory, RLM 15.308 University of Texas, Austin, TX 78712, Email: cornell@puck.as.utexas.edu Abstract. ... We have developed a language in which investigators can describe their observations, a simple method for submission, and tools to execute observations. ... These templates are: . ...

... Na - number of occulting satellite 2. Np - number of occulted satellite 3. ... Y(0) - difference of the planetocentric rectangular coordinates ( occulting satellite minus occulteded one) in the event plane ( see reference ), km 12. ax - the coefficient required for application of the coordinates X(0), Y(0) ( see reference ) 13. ay - the coefficient required for application of the coordinates X(0), Y(0) ( see reference ) 14. bx - the coefficient required for ...

... Procedure . ... The alignment telescope is delicate and extremely expensive; treat it carefully. ... Manhole cover" and associated shoulder screws and pins: the fixture used to mount the alignment telescope to the 2.5m instrument rotator. ... Adjust the focus of the crosshairs of the alignment telescope by rotating the eyepiece. ... Record the position of the alignment telescope's crosshairs on the secondary mirror's dimple (e.g. by making a sketch). ... Adjust the mirror until it is collimated: . ...

... This information is used by rochesterastronomy for the operation of the service, to maintain quality of the service, and to provide general statistics regarding use of the rochesterastronomy Web site. ... The rochesterastronomy Web site use "cookies" to help you personalize your online experience. ... For example, if you personalize rochesterastronomy pages, or register with rochesterastronomy site or services, a cookie helps rochesterastronomy to recall your specific information on subsequent...

For the calibration of RATAN-600 data you will need to Download Nobeyama Fluxes (1, 2, 3.75, 9.4, 17 GHz): year 1999 2000 2001 2002 2003 . Brief description of Work Scan . Main functions of processing, realized in the program are: . ... Correction of various (not fatal) defects of data; . ... Calculating of the lower enveloping curve or an average scan from observations data for a few days; . ... COMMENT This table contains the set (TFIELDS) of 1-dimensional (TFORM# . ... AZIMUTH = 'float' / . ...

Title: A New Model of the Gravitational Lens 0957+561 and a Limit on the Hubble Constant . Authors: Norman A. Grogin , Ramesh Narayan (Harvard Univ.) ... Title: ROSAT/PSPC observation of the distant cluster CL0939+472 . ... Title: Interaction in the Bimodal Galaxy Cluster A3528 . ... Title: Cosmological Implications of Galaxy Cluster Evolution . ... Title: Galaxy Cluster Virial Masses and Omega . ... Matches 201 to 222 from a total of 222 matches for the search pattern galaxy cluster . ...

. This is a new popup window - close it when you are done . Submitted by William Lee on 08/03/2008 11:01:26 . Radio Telescope . Uses a surplus DirectTV dish. Apparently, these are being surplused because the switch to HDTV requires new dishes. Logon to post a follow-up comment or review comments from others . Copyright (c) Amateur Telescope Makers of Boston, Inc. About Us Contact Us

The nasa.gov site requires that JavaScripts be enabled in your browser. ... Contact NASA . ... The term "astronaut" derives from the Greek words meaning "space sailor," and refers to all who have been launched as crew members aboard NASA spacecraft bound for orbit and beyond. Since the inception of NASA's human space flight program, we have also maintained the term "astronaut" as the title for those selected to join the NASA corps of astronauts who make "space sailing" their career profession. ...

... Time related attributes: . observation related: DATE_OBS and DURATION required by XMM-SOC-ICD-0006-SSC ([ 3 ]), write also DATE_END and OBSSTART , OBSSTOP . ... SAS_VERBOSITY should be set to `Sparse' (4) for normal processing and `Verbose' (5) for more detailed processing. Values of 6 and higher may yield quite a number of messages related to rejected events (MIPs) depending on CCD number and instrument mode. SAS_MEMORY_MODEL should be set to `high' for normal processing. ...