... Meta Index / Home Page / Description / Computational scheme The basic idea is to minimize the difference between the true source coordinates and the ones computed by the eboxdetect as a function of the three angles. ... Set , i.e. assume perfect alignment between the star tracker/spacecraft and instrument boresight frame in Fig. 1. run the task attcalc on the event list producing a new event list with sky coordinates corresponding to the tuple . ... set boresight angles to via the CAL . ...

... The European HST Archive has been moved to ESA's European Space Astronomy Centre ( ESAC ), Spain, where most of ESA's Space Science Archives are located and operated from. ... The Space Telescope European Coordinating Facility (ST-ECF), jointly operated by ESA and the European Southern Observatory ( ESO ) was, until the end of 2010, the European HST science facility, supporting the European astronomy community in exploiting the research opportunities provided by the Hubble Space Telescope. ...

... Archives . ... Woncheol Jang pointed me to the following web site describing a proposal opportunity at DOE that may be of interest to readers of this list: . Mathematics for Analysis of Petascale Data . http://www.science.doe.gov/grants/FAPN09-10.html . ... This solicitation seeks applications for basic research in mathematical models, methods and tools for the representation, analysis, and understanding of petascale data. ... Comment ( RSS ) | ... Entries RSS . ... Chandra Blog . ...

... Up: Data Analysis and Processing Techniques . ... Also, a method for quality control of CCD observations is suggested. ... Everyone who observes a celestial object using a CCD detects moving celestial objects as a ``by product''. ... We hope that our investigations may be useful for near-Earth space control and also for searches of the moving celestial objects through analysis of old and new CCD frames obtained at any amateur or professional astronomical observatory. ...

... These trajectories have an initial flight from the Earth to a large distance (of about 1.5 million km), the following passive flight to the Moon's orbit, an approach to the Moon with a decrease of an energy of a particle (spacecraft) selenocentric motion to a negative value and the temporary capture in an elliptic orbit of the Moon's satellite. ... Several trajectories of this type are determined. ... Ivashkin V. V. On optimal trajectories of space flight to the Moon in the Earth--Moon--Sun system. ...

... Among the objectives of Principal Components Analysis are the following. dimensionality reduction; љ . the determining of linear combinations of variables; љ . ... identification of groups of objects or of outliers. ... Finding a set of principal axes allows the objects to be adequately characterised on a smaller number of (artificial) variables. ... Reduction of dimensionality is practicable if the first new axes account for approximately 75 % or more of the variance. ...

The Network Time Protocol (NTP) is used to synchronize the time of a computer client or server to another server or reference time source, such as a radio or satellite receiver or modem. ... Information on the NTP architecture, protocol and algorithms can be found in the following articles and reports, which are available online . Mills, D.L. Internet time synchronization: the Network Time Protocol. ... Mills, D.L. Network Time Protocol (Version 3) specification, implementation and analysis. ...

Authors: Roeland van der Marel (1991-1993) and Marijn Franx (1988-1991) . ... Information: read this manual to get started, or consult the following paper for details: [R5] . ... Author: Roeland van der Marel (1992-1994) . ... Authors: Roeland van der Marel (1994-1995) and Jos de Bruijne (1994-1995) . ... Authors: Roeland van der Marel (1989-1992) and James Binney (1985-1989) . ... Author: Roeland van der Marel (1994-1995) . ... Roeland van der Marel, marel@stsci.edu . ...

Follow-up astrometry and recoveries are made with the ANU 40 inch (1.0-m) f/8 reflector at Siding Spring Observatory (IAU code 413). ... A routine follow-up of 2003 WY153 on 2003 Dec 15 became much more than routine when a faint object with unusual motion vector was found close to the target asteroid. ... During routine astrometry with the 1.0-m to improve the orbit of the Apollo asteroid 2004 CB, the asteroid was found on March 30 to have a short tail! ... Siding Spring Survey Main Page . ...

Tail Probe is one of the satellites of the INTERBALL program. ... Collection of the orbital elements | ... Flight situation analysis during operations scheduling . ... Two stages of the orbital situation analysis are presented: . ... The satellites motion calculation during the flight situation analysis is based on the orbital elements, determined by the Ballistic center at KIAM RAN. The modified (by backward integration) orbital elements are usedduring the aposteriory situation analysis. ...

... solar system . ... Solar eclipse travelogue: Sulawesi delivers a spectacular eclipse . ... Observe the Solar System . ... Tour the Solar System . ... Do the paths of totality during solar eclipses follow a pattern that repeats after a certain period? ... RELATED TOPICS: SOLAR ECLIPSE . Total eclipses follow a period known as the saros, which is 18 years and 11 1/3 days long. ... Get instant access to subscriber content on Astronomy.com! ... Join Astronomy for America's 2017 total solar eclipse! ...

... The data was taken over many days with the same source in more than one file. ... You want to convert the data to kelvins (this is galactic work) and then average all the scans for each source. ... input each onscan, average, and then scale to kelvins . place all of the averaged scans in an array, when done with the file, store this array in an idl save file for this day. ... Average together scans of the same source and then baseline them. input all of the daily save files into a single array . ...

... At 22:42:27 UT 26/07/09, the Burst Alert Telescope (BAT) on board of the SWIFT multi-wavelength space observatory triggered and located GRB 090726 gamma-ray burst event. ... About half an hour after the BAT trigger, the first images were obtained with the SAO RAS Zeiss-1000 telescope in four BVRI filters (see Fig.1). ... The spectrum of the optical transient was obtained with the SAO RAS 6-m BTA telescope 1.54 hours after the burst, using the SCORPIO instrument in the spectroscopic mode (Fig.2). ...

The GIPSY coordinate system is implemented in terms of a collection of mostly FITS-compatible GDS descriptor items. ... The axis name is uniquely related to the physical coordinates of the pixels along the axis. ... For this position the physical coordinate is precisely defined in CRVAL i , and therefore we call this position the projection centre. ... The GIPSY coordinate system also recognizes secondary axis descriptors, which relate grid positions to a different type of physical units. ...

... This gives a nice opportunity to check the quality of the FIRPO photometry against that of TIRGO. ... The values are Program POLYFIT V 10/Jul/90 ( A.Richichi ) - 24-Aug-1997 13:38:25 File : diff_temp_jc.dat Pol. degree: 1- N = 10- [ 2786.00- 4095.00 ] - [ 0.00- 1194.00] 1 -.10304E+01 0.26412E+00 2 0.29958E-03 0.74406E-04 sdev: 0.16063E+00 chi2 :0.24486E+01 Program POLYFIT V 10/Jul/90 ( A.Richichi ) - 24-Aug-1997 13:42:59 File : diff_temp_hc.dat Pol. degree: 1- N = 10- [ 2786.00- ...

Central Astronomical Observatory at Pulkovo of Russian Academy of Sciences PUL Analysis Center Pulkovo IVS Analysis Center (PUL) 2009 Annual Rep ort Zinovy Malkin, Natalia Miller, Elena Popova Abstract This report briefly presents the PUL IVS Analysis Center activities during 2009 and plans for the coming year. The main topics of the investigations of PUL staff in that period were ICRF related studies, computation and analysis of EOP series, and VLBI2010 related issues. ...

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... Science . ... Science Users Information > Science Publications > Science Announcements > Real Time Follow-up of Transient Objects From PESSTO . ... Observing Facilities . ... Observing with ESO Telescopes . ... Data Handling and Products . ... ESO Data . ... The Public ESO Spectroscopic Survey of Transient Objects ( PESSTO ) provides high-quality, time series optical and near-infrared spectroscopy of optical transients covering a broad range of luminosity, host metallicity and explosion mechanisms. ...

Software Forum Message . ... Astronomy Software Discussion | ... PEAS Is SW For Analysis Of P.E. FFT . ... P E A S is an abbreviation of Periodic Error Analyzing Software, simple program for evaluation and analysis of periodical errors (P.E.) and FFT in equatorial mount. ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... Bojan Nikolic web pages (r. 329) . Out-Of-Focus (OOF) Holography . ... The architecture of the OOF data reduction software can be summarised in following points: . ... A well defined set of external libraries is used and generally newer versions of these libraries are adopted quickly after release . ... Routines for simulating OOF data-sets . ... OOF ? ... Description of the OOF software architecture . ... OOF Reduction Software . ... Copyright 2005 -- 2016, Bojan Nikolic feedback welcome ...