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1. Calculating the Position and Velocity Components of HST
... The HST uses an onboard model of its orbit to perform in real-time various control functions relating to spacecraft operations and observation support. ... New coefficients for the ephemeris are updated every other day, and are archived as FITS keywords for each HST observation data set. Using these coefficients,an observer can perform a variety of calibration and characterization calculations relating to the orbital position and velocity of the telescope. ...
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Ссылки http://www.adass.org/adass/proceedings/adass94/aket.html -- 12.3 Кб -- 03.11.2000
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2. Principal Components Analysis
... 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. ...
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Ссылки http://www.sao.ru/precise/Midas_doc/doc/94NOV/vol2/node224.html -- 7.3 Кб -- 23.02.1996
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3. The AstroStat Slog principle component analysis
... Posts tagged ?principle component analysis? ... From SINGS (Spitzer Infrared Nearby Galaxies Survey): Isn?t it a beautiful Hubble tuning fork? ... Tags: Classification , clustering , factor analysis , Hubble , multivariate analysis , principle component analysis , SING , Spitzer , tuning fork . ... Comment . ... Entries RSS . Comments RSS . ... General comments . ... vlk on [MADS] Parallel Coordinates . upvc windows on [MADS] Parallel Coordinates . ... Entries (RSS) and Comments (RSS) . ...
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Ссылки http://hea-www.harvard.edu/AstroStat/slog/groundtruth.info/AstroStat/slog/tag/principle-component-analysis/index.html -- 20.2 Кб -- 01.03.2014
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4. Constraints on the model components:
... The fitting procedure will only converge to a unique solution if the components are linearly independent. ... The task calculates for each pair of component images and fails with an error if any is greater than 0.99. ... Hence components may be linearly independent in masked pixels yet still fail the test within the task. ... Finally, since the Poisson image values are necessarily all , negative values are not allowed in the model components. ...
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Ссылки http://xmm.vilspa.esa.es/sas/7.1.0/doc/bkgfit/node6.html -- 6.0 Кб -- 09.07.2007
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5. STDA files
... The file names' construction . The flight (m) stage's file set . ... the orbital data used for the flight operation monthly (m) long-term planning, . ... The orbital calculations are based on the initial orbital data determined by KIAM RAN using the orbital radio measurements treatment.The determined initial orbital data are presented as a state vector (satellite position and velocity) in the J2000 reference. ... Accept the file with extension '.bgr', where the Moscow time (MT=UT+3h) is used. ...
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Ссылки http://www.cosmos.ru/da/interball/auroral/orbit/areadme.htm -- 15.0 Кб -- 22.12.2007
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6. http://www.gao.spb.ru/english/as/j2014/presentations/zotov.pdf
... L.V.Zotov , C. M. Bizouard Envelope calculation () () () E() L.V.Zotov , C. M. Bizouard Envelope calculation () () () E() L.V.Zotov , C. M. Bizouard Amplitude model and forecast 3-layer Neural Network with (7, 7, 1) neurons L.V.Zotov , C. M. Bizouard Phase model and forecast 3-layer Neural Network with (7, 7, 1) neurons L.V.Zotov , C. M. Bizouard Phase and amplitude models ~ Chandler ...
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Ссылки http://www.gao.spb.ru/english/as/j2014/presentations/zotov.pdf -- 2221.7 Кб -- 28.09.2014
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7. Power Spectral Analysis
Next: Results Up: High Resolution Measurements from Previous: Introduction . The first step in PSA is to Fourier transform the image and calculate the square modulus of the FT to generate the power spectrum, . ... Specifically, one excludes the very lowest frequencies where the large scale nonuniformities in the image have the greatest effect, and one limits the fit to a frequency range where the SNR is sufficiently high. ...
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Ссылки http://www.stsci.edu/stsci/meetings/irw/proceedings/nisensonp.dir/section3_2.html -- 7.4 Кб -- 16.04.1994
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8. Inference of Coefficients for Use in Phase Correction Bojan Nikolic web pages
... Bojan Nikolic web pages (r. 329) . ... We present a Bayesian approach to calculating the coefficients that convert the outputs of ALMA 183 GHz water-vapour radiometers into estimates of path fluctuations that can be used to correct the observed interferometric visibilities. ... Inference of Coefficients for Use in Phase Correction . ... Simulating Atmospheric Phase Errors, Phase Correction and the Impact on ALMA Science . ... Copyright 2005 -- 2016, Bojan Nikolic feedback welcome ...
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Ссылки http://www.mrao.cam.ac.uk/~bn204/alma/memo-infer.html -- 14.9 Кб -- 04.04.2016
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9. Calculation of Evolutionary Tracks
... The evolution of a binary system is considered as a sequence of stages the duration of which are defined by the shortest evolutionary time-scale of one of the binary components (see the list of the evolutionary states of stars in Sections 3 and 4). ... Then the code finds a new stage the binary should transit to, with this stage being determined by the evolutionary states of both components, and calculates it. ... However, one can use the algorithm described above to model their evolution. ...
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Ссылки http://xray.sai.msu.ru/~mystery/articles/review/node38.html -- 4.7 Кб -- 22.02.1997
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10. odnh3
... User Guide ] Task: odnh3 Purpose: Ammonia analysis program Categories: map combination, map manipulation ODNH3 is a MIRIAD task that creates optical depth and rotational temperature maps from ammonia maps. Ammonia J,K=(1,1) emission has five hyperfine components, one main hyperfine component, two inner hyperfine components, and two outer hyperfine components. ... Key: map1 Input map, main hyperfine component map of the J,K=(1,1) level. No default. ... Key: region Standard keyword region. ...
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Ссылки http://www.atnf.csiro.au/computing/software/miriad/doc/odnh3.html -- 3.5 Кб -- 10.04.2016
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11. Galaxy sector, archive 2006
... 2006: . ... Components of the systems are low mass stars and white dwarfs. For 14 pairs orbit parameters were calculated and masses and luminosities of components were determined for the first time. ... As a result of a multifrequency monitoring of the variability of a micro quasar Cyg X-3 (X-ray binary system which probably consists of a black hole and a high mass Wolf-Rayet star) a high activity period was registered for the first time in the last 4 years. ... Archive . ...
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Ссылки http://www.sao.ru/Doc-en/Science/results/ar_galaxy/res2006.html -- 6.1 Кб -- 10.04.2016
[ Сохраненная копия ] Ссылки http://mavr.sao.ru/Doc-en/Science/results/ar_galaxy/res2006.html -- 6.1 Кб -- 10.04.2016
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[ Сохраненная копия ] Ссылки http://mavr.sao.ru/Doc-en/Science/results/ar_galaxy/res2006.html -- 6.1 Кб -- 10.04.2016
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12. "STP Data" STP Data
... Minute Values of Geomagnetic Field Components . ... AA 1868 - Present (3 hourly and daily) (monthly) (yearly) (Lists and histograms of geomagnetic disturbance and Solar Sunspots) KP_AP 1932 - Present (3 hourly and daily) (Lists and histograms of geomagnetic disturbance and Solar Sunspots) AE_HV 1957-75, 78-88 (hourly) AE_MIN 1978-881-6;198903;1990-94 (minute) DST 1957 - Present (hourly) PC 1975 - Present (15-minute) AMANAS 1959 - Present (3 hourly and daily) KMKNKS 1983 - Present (3 hourly) . ...
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Ссылки http://www.wdcb.ru/stp/welcome.shtml -- 11.9 Кб -- 18.01.2010
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13. Iowa Robotic Telescope Facilities
... Iowa Robotic Telescope | ... Talon is based on OCAAS, a software suite developed by software engineer Elwood Downey ( Clear Sky Institute ) for use at the University of Iowa ?s first remote facility (the ATF, or Automated Telescope Facility). ... XObservatory : Telescope Control Interface . ... This program calls upon and coordinates much of the interrelated portions of the Talon architecture, and forms the primary control panel for the telescope, dome, and peripheral systems when used locally. ...
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Ссылки http://vega.inp.nsk.su/~inest/Talon(OCAAS)/Iowa%20Robotic%20Telescope%20Facilities.htm -- 37.9 Кб -- 25.01.2006
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14. Keywords_152
Electronic Catalogue of Comets "Halley" . ... In this paper we give a description of the Electronic Catalogue of Comets "Halley", which makes it possible to calculate the evolution of the orbits of comets, to visualize orbital motion, to determine the circumstances of a comet's close approach to planets within a given time interval, as well as a number of other opportunities. ...
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Ссылки http://www.ipa.nw.ru/PAGE/EDITION/transaction/tbook/152.htm -- 4.3 Кб -- 02.10.2012
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15. http://lnfm1.sai.msu.ru/~rastor/Software/equ2gal.m
function [l,b, mul , mub ]=equ2gal(ra,de, mura , mude ); %% % % Calculating galactic coordinates and % proper motion components: % Transformation: Equatorial ---- Galactic % Epoch and equinix J2000 % % Function call: [l,b, mul , mub ]=equ2gal(ra,de, mura , mude ) % % % Input: ra, de - eequatorial coordinates (in degrees) % mura , mude - proper motion components % in the equatorial ...
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Ссылки http://lnfm1.sai.msu.ru/~rastor/Software/equ2gal.m -- 3.1 Кб -- 23.03.2013
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16. http://www.apo.nmsu.edu/arc35m/Instruments/ARCTIC/Development/ImagerPDR/Assembly.pdf
The Instrument · · · · · · Baffling Coa3ngs Assembly Moths Lab Tes3ng Commissioning NA2 Baffle · · The NA2 baffle will need to be modified The baffle will need to be opened up to allow the 10.8' diameter field through Instrument Baffles · There are three knife edged surfaces inside the instrument Entrance port Back of shuIer housing Op3cal Tensioner Coa3ngs · Dewar Main components Nickel plated Stainless steel components either ...
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Ссылки http://www.apo.nmsu.edu/arc35m/Instruments/ARCTIC/Development/ImagerPDR/Assembly.pdf -- 2118.2 Кб -- 05.12.2013
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17. CIMA Software Components
CIMA is more than just the observing tool - in fact, the observing tool is just a part of a bigger package called the CIMA software package. ... There is also a another package called the CIMA WAPP software which contains the WAPP software, the special Tcl/Tk interpreter used by CIMA and support libraries. ... All CIMA software components recognize the following general options that are part of the CIMA version selection system: . ... The select_cima script can be used to set up a default version. ...
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Ссылки http://www.naic.edu/~cima/cima_software.html -- 8.3 Кб -- 01.03.2012
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18. Geomagnetic Kp Index
Geomagnetic disturbances can be monitored by ground-based magnetic observatories recording the three magnetic field components. The global Kp index is obtained as the mean value of the disturbance levels in the two horizontal field components, observed at 13 selected, subauroral stations . ... Geomagnetic activity is the occurrence of K variations. ... But K still remains a local index, describing disturbances in the vicinity of each observatory. ...
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Ссылки http://www.iki.rssi.ru/magbase/REFMAN/KP_INDEX/kp.html -- 6.3 Кб -- 27.07.2001
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19. Journal "Peremennye Zvezdy"
Peremennye Zvezdy ( Variable Stars ) 33 , No. ... We present our discovery a new variable star USNO-A2.0 1350-17086180 from observations at the Astrotel-Caucasus Observatory. ... The numbers of observations on each of the observing nights are presented in Table 1; the observations are attached to the html version of this paper. ... Numbers of observations . ... No. observations . ... 0.001 . ... 0.000 . ... 0.003 . ... 0.004 . ... 0.002 . ... 0.005 . ...
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Ссылки http://www.astronet.ru/db/varstars/msg/1290295 -- 55.5 Кб -- 29.01.1973
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20. The Frequency-Frequency (FF) Plane
Next: A Simple Example With Up: CHIRPLET TRANSFORM SUBSPACES Previous: CHIRPLET TRANSFORM SUBSPACES . We begin by discussing the CF plane, and then present an argument for re-parameterizing this plane in terms of two frequency indices, leading to what we will be calling ``frequency-frequency'' (FF) analysis. ... Computing the CF plane of a signal, s ( t ), is equivalent to correlating the signal with a family of chirps that are parameterized by chirprate, c and center frequency, . ... Figure 7 . ...
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Ссылки http://crydee.sai.msu.ru/~vab/Wavelet.rsc/Chirplet.dir/node19.html -- 7.9 Кб -- 15.04.1998
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