... Stellar Evolution is driven entirely by the never ending battle between Pressure and Gravity . As imbalances are reached, the star is driven to find a new Energy source. ... Pressure and gravitational forces are equal, the star is stable and its core is sufficiently hot to fuse Hydrogen into Helium More about main sequence stars . ... The luminosity generated by the core fusion of Helium into Carbon is far greater than the shell luminosity associated with the fusion of Hydrogen into Helium. ...

... This is possible at modest cost due to the low moments of inertia of the telescope and enclosure. ... This same performance will be achieved in higher winds when the telescope enclosure is facing away from the wind, or by using wind screens. ... The telescope system (MILT) will be remotely operable with an on-site operator's assistance by an astronomer located at one of the ARC member institutions. ... Mean Wind Speed . ... Offsets > 10 deg: 1 arc sec rms max . ... 5 sec max, tracking to tracking . ...

... observer% idl . ... scan, to get a record # v frequency image and finally, for Standard ON/OFF data, . ... IDL> lun=coronl() . ... IDL> rew,lun . ... The above file location applies to data while it is being acquired. ... IDL> io=corposonoff(lun,b,scan=scan#,/han,/scljy) . ... Resulting spectrum placed in b. IDL> io=corposonoff(lun,b,scan=scan#,/han,/sclcal) . ... IDL> hor . ... IDL> istat=corinpscan(lun,b,scan=scan#,/han,/sum) . ... Resulting spectrum placed in structure b. IDL> c=cormath(a,b,/sum)...

... The next step after loading is to apply a number of ``fixes'' that are important for 3-mm data. ... By default atfix applies the ``standard'' gain/elevation model for the antennas. ... As mentioned above, the ATCA uses the chopper wheel method to measure an above atmosphere system temperature. ... On the night of an ATCA reconfiguration, a solution for the antenna positions is derived. ... Task atfix corrects the data for an improved antenna location solution via the dantpos parameter. ... ATFIX . ...

... CYLINDRICAL PROJECTIONS: -Jc lon0 / lat0 / scale (Cassini) -Jj lon0 / scale (Miller) -Jm scale ( Mercator - Greenwich and Equator as origin) -Jm lon0 / lat0 / scale ( Mercator - Give meridian and standard parallel) -Joa lon0 / lat0 / azimuth / scale (Oblique Mercator - point and azimuth) -Job lon0 / lat0 / lon1 / lat1 / scale (Oblique Mercator - two points) -Joc lon0 / Je lon0 / lat0 / scale (Equidistant). Jf lon0 / lat0 / horizon / scale (Gnomonic). ...

... Tracking stations will be selected in accordance with the schedule issued daily by the General Operative Control Group (GOCG) in Lavochkin Association with the gaps in operations during spacecraft contact with the control stations (CS). ... Communication frequencies (carrier): high data rate information transmission downlink from the SRT ­ 15.000 GHz; uplink synchronization ­ 7.2075 GHz; downlink synchronization ­ 8.400 GHz. ...

NEUTRON MONITOR DATA FOR JUNGFRAUJOCH AND BERN DURING THE GROUND-LEVEL SOLAR COSMIC-RAY EVENT ON 28 October 2003 R. Buetikofer and E.O. Flueckiger Physikalisches Institut, Universitaet Bern Sidlerstrasse 5, CH-3012 Bern , Switzerland This report includes information on the processing and use of the data for the ground-level solar cosmic ray event on 28 October 2003 obtained by the following three ... Section 3 of the IGY neutron monitor at Jungfraujoch is the central section. ...

Instrument . ... Scanning TV-sensor with on-board data recording system for global coverage mode . ... recording, direct transmission . ... IR-radiometer for global coverage and direct data transmission modes . ... The scientific instrument package onboard the Meteor-3 spacecraft provides for regular instant acquisition of images of cloudiness and Earth surface in visible and infra-red bands, data on air temperature and humidity, sea surface temperature and clouds temperature. ...

HUBBLE SPACE TELESCOPE DAILY REPORT #914 PERIOD COVERED: 0800 EST Daily Status Report as of 174/1200Z. 1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED: 1.1 Completed WFC 4277 (Calibration fo Nearby Galaxy Type IA Supernovae as Standard Candles) The Wide Field Camera was used to make one image of Cepheid variable stars located inside galaxy NGC-5253. ... Recovery) The Wide Field Camera was used to make two images of the spiral galaxy M-101 which is located in Ursa Major looking for Cepheid Variable stars. ...

... October 6, 09:00 09:40 . Jorge Melnick (ESO) . ... We present a statistical and temporal analysis of the ground meteorological properties recorded at the five selected sites for hosting the European Extremely Large Telescope (EELT). ... Marc Sarazin (ESO) . The organization and development of the E-ELT site testing campaign by ESO are described. ... The E-ELT Site Testing activities in northern Chile and Argentina are reviewed, and pioneering explorative campaigns are illustrated. ...

... News Latest News News Archive Newsletter Quarterly Status Report . ... Calibration strategy, status and factors limiting success: Chandra . ... Calibration strategy, status and factors limiting success: XMM-Newton . ... Calibration strategy, status and factors limiting success: Swift . ... Calibration strategy, status and factors limiting success: RXTE . ... Calibration strategy, status and factors limiting success: Suzaku . ... Calibration strategy, status and factors limiting success: Integral . ...

... NASAs X 43A Scramjet Sets Air Speed Record . ... Credit: X-43A Development Team , DFRC , NASA Explanation: Using oxygen from the air itself, a NASA experimental jet propelled itself past Mach 7 in the atmosphere above the Pacific Ocean this weekend. ... Atmospheric oxygen was then scooped up, combined with onboard hydrogen , and combusted in flight to propel the X-43A to record air speeds during maneuvers over the next 10 minutes. ... NASA Web Site Statements, Warnings, and Disclaimers . ...

... Science . ... Science Users Information > Observing with ESO Telescopes > Observing Tools and Services > Standard Stars Catalogues > Standard Star Catalogue Search Tool . ... Publications with ESO Data . ... ESO Data . ... This tool searches the standard star catalogues for standards that are within dX airmasses of the target at a given LST. ... In this case put the LST when the target was observed in the TargetLST box as before, and put the LST of the standard star observation in the StdObs LST box...

... The frames, as they appear on the monitor with the command LOAD/IMAGE , are in general not oriented properly. ... This means that the frames have to be rotated in such a way that: . ... ROTATE/ECHELLE inputspec outframe mode . ... The command ROTATE/ECHELLE sets descriptor values START and STEP to 1.,1. for all images and updates the session keyword CCDBIN to the original steps of the images. These operations must be performed by the user if another command than ROTATE/ECHELLE is applied. ...

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... The ionogram catalogue is divided into the data file and the key file. ... The station codes database consists of the data file and two key files. ... This database consists of the data file and the key file. ... The antenna DB consists of two interrelated databases. ... The data file contains the following information: antenna type, antenna name, antenna parameters names, measurement units, and ranges of parameters. ...

... Using UNIX System Calls and Library Functions . ... To use system calls and library functions in a C program we simply call the appropriate C function. Examples of standard library functions we have met include the higher level I/O functions -- fprintf() , malloc() .. ... For most system calls and library functions we have to include an appropriate header file. e.g. stdio.h, math.h . ... Information on nearly all system calls and library functions is available in manual pages. ...

DIGITAL WDC EXCHANGE FORMAT . FOR OBSERVATORY 1.0 MINUTE VALUES 1. ... DATA-1 .. DATA-60 are 1-minute values of the given element for that hour. ... Typically, digital 1-minute values received by WDCs from organizations operating automatic magnetic observatory instruments are averages of more frequendy sampled values, e.g. 10-second point samples. ... If the method used to obtain 1-minute average values is important to a user, the WDC will assist in determining the exact procedure applied. ...

... The SIRTF Science Center is developing two Web-based tools that will be used during operations. One tool is for Quality Analysis. ... The basic design requirements for the QA tool are (1) that it provide an easy way of looking at all the data, observation by observation, and (2) that it provide an easy way to specify status and comments for each observation. ... The data accessed by this tool consists of meta-data in the central database as well as the actual data files in the archive. ...

Next: Definition of Scientific Misconduct Up: scientific Previous: Introduction . ... This Code of Good Practice closely follows the Statement on Safeguarding Good Scientific Practice issued by the Biotechnology and Biological Sciences Research Council (BBSRC) in 1998. ... The Observatory expects the highest standards of scientific integrity to be adhered to by the researchers, students and other staff that it funds, whether they are employees or associates of other institutions. ...

JSC History . ... NASA History . ... White Sands Space Harbor . ... Historic American Engineering Record (HAER) Level II Documentation . From 1976 to 2011, NASA has operated and managed the White Sands Space Harbor (WSSH) for astronaut training operations and as an alternate landing facility for the Space Shuttle Program (SSP). ... White Sands Space Harbor HAER Level II documentation (complete - 20.6 MB) . White Sands Space Harbor HAER Level II documentation (individul sections) . ...