... Figure 8: Can you detect the motion of the near-Earth asteroid 2000PH against the background stars during its close approach to Earth around 27 July 2004? ... Down) observed and imaged the unusual near-Earth asteroid 2000PH during its close approach to the Earth around 27 July 2004. The observations were carried out remotely using the new 2m aperture Faulkes telescope situated on the 10,000-foot summit of Haleakala, on the island of Maui in Hawaii. ...

Еще в разделе: (Показать все результаты (>2297) - star.arm.ac.uk/ )

• Observations with the Faulkes Telescopes
• First CCD Observations of Asteroids from Armagh

... Impact on source motion in Galactic coordinate system is given by Kovalevsky (2003), Malkin (2011) l cos b = -A sin l, b = -A cos l sin b, where A = R0 02 /c is the galactocentric acceleration called hereafter the GA constant. ... We just have to return to the traditional many-centuries-old astrometric practice of modelling the position of a celestial object as a linear trend with two parameters: the position at the initial (conventional) epoch and the apparent (proper) motion. ... 2011). ...

Еще в разделе: (Показать все результаты (>334) - www.gao.spb.ru/ )

• Pulkovo NEO Page: Observations
• Pulkovo NEO Page: Ephemeris Support
• Pulkovo NEO Page: Apparent Close Approaches to the Stars

Next: The Individual Approach Up: The Joint Approach Previous: Self-Calibration . We briefly describe some other useful tools. ... Mosaic Point-Spread Function - MOSPSF: It is occasionally instructive to look at the point-spread function at a particular position in a mosaic experiment. ... Additionally, as mentioned above, invert does not attempt to completely correct for the primary beam attenuation where there is too little data (i.e. some primary beam attenuation is in the output image). ...

Еще в разделе: (Показать все результаты (>15166) - www.atnf.csiro.au/ )

• Making a Fake Observation
• The Joint Approach
• Self-Calibration

Nongravitational Effects on Cometary Motion due to Jupiter . ... The problem of linking cometary apparitions before and after the approach of a comet to Jupiter was investigated. A hypothesis of possible existence of additional acceleration, perturbing the motion of comets in the vicinity of Jupiter, was considered. This nongravitational perturbation is described by a function of the jovicentric distance, written in a standard "force law" form. ...

Еще в разделе: (Показать все результаты (>203) - www.ipa.nw.ru/ )

• AE (appendix)
• AY2006 (preface)
• AY2011 (preface)

... The dayside auroral precipitation consist of magnetosheath related boundary layer precipitation, and plasma sheet related BPS/CPS precipitation (extensions of the nightside precipitation regions). ... For example, the much lower fluxes from the LLBL region when compared to the cusp are compensated by the bidirectional electron beams found in the LLBL: the precipitating energy fluxes in the LLBL and the cusp are not that different. ... directly through the cusp and plasma mantle . ...

Еще в разделе: (Показать все результаты (>838) - www.iki.rssi.ru/ )

• Comet Shoemaker-Levy 9
• Galileo to Jupiter
• Field-aligned potential drops [Oulu]

... A technique allowing automatic representation by a relatively small number of independent parameters based on the principal component analysis of data sequences is presented. ... In recent years the spectrum of observed astronomical data can be characterized as greatly varied. ... In this instance, the problem of initial description and classification of newly-observed data becomes most urgent, especially if there is a lack of preliminary observational material and theoretical expectations. ...

Еще в разделе: (Показать все результаты (>1736) - www.adass.org/ )

• Modern CCD Observations of Moving Celestial Objects: Algorithms and Software
• ADASS 2003 Conference Proceedings
• Enhanced HST Pointing and Calibration Accuracy: Generating HST Jitter Files at

The VLTI Calibrator Selector Tool is a tool intended to assist in the selection of suitable interferometric calibrators for VLTI observations with MIDI and AMBER. It uses a model of the VLTI and its instruments to assess the fringe visibility, given the observed bandpass, the geometry, spectrum, and coordinates of the target and the time at which the observations are to be made. ... The tool offers an HTML/Java based interface and consists of two pages. ... The quality flag depends on LDD_chi2. ...

Еще в разделе: (Показать все результаты (>66001) - www.eso.org/ )

• A Black Hole's Dinner is Fast Approaching | ESO
• Adding plot variables
• ESO - VISTA Science Verification

... Comet Tutorial . ... On July 1, 1993 an image was taken with the Hubble Space Telescope (HST) that clearly shows at least 15 individual fragments in one image frame of the train. ... This made an accurate orbit (or orbits) difficult to determine; however, after numerous observations of the comet, astronmers determined that the comet had passed within 96,000 kilometers (60,000 miles) of the center of Jupiter or 25,000 kilometers (16,000 miles) from the cloud tops during the July 8, 1992, approach. ...

Еще в разделе: (Показать все результаты (>7566) - www.arcetri.astro.it/ )

• New Moons of Uranus
• Galileo to Jupiter
• TRASP 2

lsst.coordConv љ unknown . ... coordConv::FK4CoordSys Class Reference . ... FK4CoordSys (double date=1950.0) . ... CoordSys (std::string const &name, double date, DateTypeEnum dateType, bool isMean , bool canConvert ) . ... convertFrom (double &toDir, double &scaleChange, CoordSys const &fromCoordSys, Coord const &fromCoord, double fromDir, Site const &site, double tai=0) const . ... virtual double coordConv::FK4CoordSys::dateFromTAI . ... virtual double coordConv::FK4CoordSys::taiFromDate . ...

Еще в разделе: (Показать все результаты (>517) - www.apo.nmsu.edu/ )

• lsst.coordConv: coordConv::FK5CoordSys Class Reference
• lsst.coordConv: coordConv::OtherCoordSys Class Reference
• lsst.coordConv: coordConv::GalCoordSys Class Reference

... Matrix of Transformation | ... Every set of attitude coefficients (corresponding to a line in attitude data file) is valid for its own time interval and gives the possibility to get a matrix N of tranformation from the GSE coordinate system to the S/C coordinate system as well as a matrix M of tranformation from the S/C coordinate system to the GSE coordinate system. ... and the matrix M of transformation from the S/C to the GSE systems (the direction cosines matrix) is: . ... V GSE = M * V S/C . ...

Еще в разделе: (Показать все результаты (>1451) - www.cosmos.ru/ )

• The Wind Spacecraft
• STDA files
• SKA-3 Results Page

Taking into account the result by Watanabe P=2.5 days in outburst, I reconstruct old set of photographic observations being partly lost, and add some new observations. ... The periodogram calculated with the method by Lafler and Kinman is shown. ... The last periodogram indicates peaks corresponding following possible periods with the double-wave light curve: 0.4236, 0.4650, 0.5379, 0.6064, 0.7365, 0.871, 1.168, 1.5437, 2.8173, and 6.89 days. ...

Еще в разделе: (Показать все результаты (>825) - jet.sao.ru/ )

• Optimization of spectroscopic observations
• di_eks
• Fabry-Perot Interferometer: Data cubes

... In 1995, two intermittent detector features (aka hotspots) particular to the ROSAT HRI have been noticed on the edge of the HRI field. ... To view the hotspots: . HS #1 > xdisplay "rh123456n00.qp[key=(rawx,rawy)][186:697,230:741]" HS #2 > xdisplay "rh123456n00.qp[key=(rawx,rawy)][3380:3891,297:808]" HS #3 > xdisplay "rh123456n00.qp[key=(rawx,rawy)][2753:3252,3065:3564]" OR > xexamine rh...qp[key=(rawx,rawy)] [HS #1, if present, appears as a spot in the lower left; HS #2 in the lower right.] ...

Еще в разделе: (Показать все результаты (>3431) - hea-www.harvard.edu/ )

• Spatial Corrections of ROSAT HRI Observations from Wobble-related Aspect
• The AstroStat Slog Blog Archive [Book] Elements of Information Theory
• Additional Tools

Databases (NSDC) of the Natural Planetary Satellites. ... In the file of explanations, source of data or bibliographic reference is indicated. ... File of data (Data) *.txt. ... Les donnИes standard de la base NSDB (Standard Data) . ... Any bibliographic reference has the following fields (please, don't mix up these reference fields hereafter called "fields" with the search fields where you will enter the data and which are hereafter denoted as "search fields" or "text fields"): . ...

Еще в разделе: (Показать все результаты (>506) - lnfm1.sai.msu.ru/ )

• jg0035
• Data bases of Natural Satellites. Documentation. Structure
• jg0025

... Field size . Object name . ... Map size . ... Field size: the approximate size of the map in the Y direction. ... Galaxies: . ... Galaxies, which size exceeds some value depending on the field and map sizes, are displayed with their real positional angles and sizes by 25m isophote. ... In the "tools" fields there are links to the several famous AVO (Astrophysical Virtual Observatory) resources: NED and Simbad databases and DSS2 (Palomar Digitized Sky Survey) images of the corresponding sky area. ...

Еще в разделе: (Показать все результаты (>52397) - www.astronet.ru/ )

• Journal "Peremennye Zvezdy"
• Journal "Peremennye Zvezdy" > PZ: main journal.
• Cassini Spacecraft Approaches Jupiter

... The reduction system of observations FADPS (description in Russian) (Flexible Astronomical Data Processing System) for data of wide-band receivers of the first observation cabin of the radio telescope RATAN-600 had been created under the Unix-like operational system DEMOS for computers of the SM-1420-type (PDP/11) in 1987 for observation analysis and estimates of coordinates and flux densities of radio sources. ... FADPS: flexible astronomical data processing system at RATAN-600 in UNIX environment....

Еще в разделе: (Показать все результаты (>30) - sed.sao.ru/ )

• To gravitational wave discovery with LIGO

Astronomy Discussion Forums . Forums: . ... Observation Report 03/15/03 From Coyle Field . ... Post Message | ... Observation Report 03/15/03 from Coyle Field . ... It?s been a while since I could write a decent observation report. ... Coyle Field is a great sight. ... 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" . ...

Еще в разделе: (Показать все результаты (>2264) - www.astronomy.net/ )

• Venus Transit - an Astronomy Net Observation_reports Forum Message
• Svemir - an Astronomy Net Observation_reports Forum Message
• Observations Of Mars - an Astronomy Net Observation_reports Forum Message

... Tonight's Sky . ... News . ... Sky this Month . ... Sky this Week . ... New cometary phenomenon greets approaching spacecraft . ... A phenomenon was recorded by imagers aboard NASA's Deep Impact spacecraft from September 9 to 17 during pre-planned scientific observations of Comet 103P/Hartley. ... If observers monitoring Hartley 2 do not take into account this new phenomenon, they could easily get the wrong picture of how the comet is changing as it approaches and recedes from the Sun," said A'Hearn...

Еще в разделе: (Показать все результаты (>6043) - www.astronomy.com/ )

• NASA captures new images of large asteroid passing Earth | Astronomy.com
• Herschel intercepts asteroid Apophis | Astronomy.com
• "Cosmic mirages" confirm accelerated cosmic expansion | Astronomy.com

... 1997: . For the most representative sample of 277 most nearby galaxies, their masses, separations and tidal indexes were determined based on the BTA observations. ... The most detailed light curve of optical star-like source (corresponding to the gamma-burst of May 8, 1997) was obtained from the BTA observations simultaneously in 4 photometric bands. ... An effect of an abrupt rate slowdown is noticeable in the infrared (~8000A) 36 days after the gamma-ray burst. ... Archive . ...

Еще в разделе: (Показать все результаты (>292) - mavr.sao.ru/ )

• RCJ0311+0507
• Metagalaxy sector, archive 2000
• RATAN-600

Next: Navigation Pre-Observation Products . ... SRT (Space Radio Telescope) Schedule (SRS) File . ... What: GOCG generates the Space Radio Telescope (SRT) schedule file, or SRS file, from current GSTS file. The SRS file has more precise time stamps than long-term schedules, and also designates which GTS will be used when. ... The SRS file also serves as the antenna pointing schedule file, as it describes the planned orientation of the spacecraft (and solar panels) as a function of time. ...

Еще в разделе: (Показать все результаты (>167) - www.asc.rssi.ru/ )

• ОТЧЕТ
• RSOG Pre-Observation Products
• Correlator Products

... The operators will be explained as they are used. The general notion to keep in mind is that any combination of these operators results in a 2- D affine coordinate transformation in the TF plane, which may be represented using the homogeneous coordinates often used in computer graphicsfoley. ... S _t_c,f_c = g_t_c,f_c,(_t) | ... We denote a time shift to the position , with an operator that has a multiplicative law of composition : (Table 1). ... Note that these two operators do not commute. ...

Еще в разделе: (Показать все результаты (>3854) - crydee.sai.msu.ru/ )

• The Chirplet Transform: Physical Considerations
• Album: 08/06/04 Observations of Venus transit