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VIRUS Instrument Collimator Assembly
... other pair of VIRUS collimator units. Unfortunately this goal was unreachable, and the final instrument will require precision alignment of each matched collimator-camera pair. The final collimator design allows for the adjustment of the tip/tilt/focus of the collimator mirror as well as setting the ...
... other pair of VIRUS collimator units. Unfortunately this goal was unreachable, and the final instrument will require precision alignment of each matched collimator-camera pair. The final collimator design allows for the adjustment of the tip/tilt/focus of the collimator mirror as well as setting the ...
LSST and Dark Energy - University of Washington
... Perturbations are placed on the three mirrors using a Zernike expansion to simulate the possible residual control system errors each mirror can have an arbitrary amplitude code goes up to 5th order polynomials ...
... Perturbations are placed on the three mirrors using a Zernike expansion to simulate the possible residual control system errors each mirror can have an arbitrary amplitude code goes up to 5th order polynomials ...
Beam Expander Basics: Not All Spots Are Created Equal
... In a laser beam expander design, the placement of the objective and image lenses is reversed. In the Keplerian beam expander design, the collimated input beam focuses to a spot between the objective and image lenses, producing a point within the system where the laser’s energy is concentrated (Figur ...
... In a laser beam expander design, the placement of the objective and image lenses is reversed. In the Keplerian beam expander design, the collimated input beam focuses to a spot between the objective and image lenses, producing a point within the system where the laser’s energy is concentrated (Figur ...
Document
... Even the largest ground-based astronomical telescopes have no better resolution than an 8" telescope! ASTR 289 ...
... Even the largest ground-based astronomical telescopes have no better resolution than an 8" telescope! ASTR 289 ...
celt mthr spectrometer
... continuum of an M star doesn't even exist in the optical due to such heavy line blanketing. However, it is precisely this abundance of atomic lines that makes the optical region so rich in spectral line-slope information and hence Doppler velocity information. Atomic line density falls off rapidly i ...
... continuum of an M star doesn't even exist in the optical due to such heavy line blanketing. However, it is precisely this abundance of atomic lines that makes the optical region so rich in spectral line-slope information and hence Doppler velocity information. Atomic line density falls off rapidly i ...
Full Presentation Here
... • Precise Measurement of the GRH lead to a new technique to measure m and – Independent from other techniques currently used. – No standard-candle ( but uniform and isotropic EBL ) – Active Galactic Nuclei highest observable redshift • The precision of this technique is dominated by the system ...
... • Precise Measurement of the GRH lead to a new technique to measure m and – Independent from other techniques currently used. – No standard-candle ( but uniform and isotropic EBL ) – Active Galactic Nuclei highest observable redshift • The precision of this technique is dominated by the system ...
6 OPTICS
... a single unit working from the UV to the K band, the design of the corrector/ADC has not been extended to the near-infrared. A corrector design for the NIR is possible in principle, but would best be implemented as a separate unit. A number of designs for field correctors have been considered as par ...
... a single unit working from the UV to the K band, the design of the corrector/ADC has not been extended to the near-infrared. A corrector design for the NIR is possible in principle, but would best be implemented as a separate unit. A number of designs for field correctors have been considered as par ...
Lecture ppt - UCO/Lick Observatory
... Spilling of light, Neptune bright clouds • Light from bright compact cloud region “spills” over limb, and into nearby dark areas ...
... Spilling of light, Neptune bright clouds • Light from bright compact cloud region “spills” over limb, and into nearby dark areas ...
Search for diffuse cosmic neutrino fluxes with the
... • Signal interpreted as diffuse, with 1:1:1 flavor ratio and compatible with different energy spectra E-G (preferred G 2.2-2.3) • A larger asymmetry between North and South hemispheres in IceCube seems more evident in the new sample with E>25 TeV • The excess from the South sky can be interpreted a ...
... • Signal interpreted as diffuse, with 1:1:1 flavor ratio and compatible with different energy spectra E-G (preferred G 2.2-2.3) • A larger asymmetry between North and South hemispheres in IceCube seems more evident in the new sample with E>25 TeV • The excess from the South sky can be interpreted a ...
Estimating the Cost of Extremely Large Telescopes
... million in 1992 dollars. Multiplied times 12, this becomes $400 million. Therefore, compared to the Mayall, Keck I beat the cost curve by about a factor of four, a remarkable feat considering that the Keck telescopes are sited on Mauna Kea, a higher and more remote site than Kitt Peak. Why is the Ke ...
... million in 1992 dollars. Multiplied times 12, this becomes $400 million. Therefore, compared to the Mayall, Keck I beat the cost curve by about a factor of four, a remarkable feat considering that the Keck telescopes are sited on Mauna Kea, a higher and more remote site than Kitt Peak. Why is the Ke ...
Dishing Up the Data: The Role of Australian Space Tracking and
... due to launch or spacecraft systems failures, the performance of the DSIF itself was highly successful and demonstrated the importance of a world-wide tracking station network, controlled from a central location (in this case JPL), as an essential element in future space missions to the Moon and pla ...
... due to launch or spacecraft systems failures, the performance of the DSIF itself was highly successful and demonstrated the importance of a world-wide tracking station network, controlled from a central location (in this case JPL), as an essential element in future space missions to the Moon and pla ...
Lecture 17
... identify the strongest radio sources with individual optical objects, often galaxies, but sometimes stellar-appearing sources ...
... identify the strongest radio sources with individual optical objects, often galaxies, but sometimes stellar-appearing sources ...
Traveling Wave
... 1/ Oscillation amplitude varies with location. (c.f. traveling wave). 2/ Within same loop, all particles oscillate in phase, but anti-phase with those in adjacent loops ...
... 1/ Oscillation amplitude varies with location. (c.f. traveling wave). 2/ Within same loop, all particles oscillate in phase, but anti-phase with those in adjacent loops ...
V. Morozenko, Night Atmosphere Radiation in
... trapped by geomagnetic field. The Southern Hemisphere latitudes >30o are at the day side. Sahara is evidently region restricted to flash events. ...
... trapped by geomagnetic field. The Southern Hemisphere latitudes >30o are at the day side. Sahara is evidently region restricted to flash events. ...
17. Trigonometry - Haese Mathematics
... 2 A sandwich board is set up on the footpath. The angle at the apex is 32± , and the feet are set 40 cm apart. How long are the boards that make up the sign? ...
... 2 A sandwich board is set up on the footpath. The angle at the apex is 32± , and the feet are set 40 cm apart. How long are the boards that make up the sign? ...
1 Introduction. - NRAO Library
... near ground level, to determine upper station locations with respect to ground control coordinates. Ground based stations scan up to the feed arm to determine feed arm station locations, and to the main reflector's rim to acquire telescope pointing information. They also scan near the horizontal, to ...
... near ground level, to determine upper station locations with respect to ground control coordinates. Ground based stations scan up to the feed arm to determine feed arm station locations, and to the main reflector's rim to acquire telescope pointing information. They also scan near the horizontal, to ...
On-sky MOAO performance evaluation of RAVEN
... corrections are summarized in Table 1. The performances of the MOAO and GLAO modes are between the performances of the seeing-limited and SCAO modes as expected. We achieve the EE more than 30 % in H-band with the MOAO correction, which is a science requirement for RAVEN. Although there is no clear ...
... corrections are summarized in Table 1. The performances of the MOAO and GLAO modes are between the performances of the seeing-limited and SCAO modes as expected. We achieve the EE more than 30 % in H-band with the MOAO correction, which is a science requirement for RAVEN. Although there is no clear ...
FGS1R: Potentially HST`s Astrometry Science Workhorse
... In order to illustrate the perfomance capabilities of FGS3 and FGS1R, we have generated a series of synthetic S-Curves of binary systems. A simple schematic of a binary orbit and resulting S-Curves are given in Figure 4. The composite S-Curve of a multiple system is a linear superposition of the S-C ...
... In order to illustrate the perfomance capabilities of FGS3 and FGS1R, we have generated a series of synthetic S-Curves of binary systems. A simple schematic of a binary orbit and resulting S-Curves are given in Figure 4. The composite S-Curve of a multiple system is a linear superposition of the S-C ...
Chapter 6 Questions part 1 File
... 4. Reported gross profit for the year of $15,000,000 in its income statement. a. At what amount was Cost of Goods Sold reported in the company's year-end income statement? b. At what amount was Merchandise Inventory reported in the company's year-end balance sheet? ...
... 4. Reported gross profit for the year of $15,000,000 in its income statement. a. At what amount was Cost of Goods Sold reported in the company's year-end income statement? b. At what amount was Merchandise Inventory reported in the company's year-end balance sheet? ...
Astronomical Data Simulations
... sufficient signal to noise that high dynamic range maps can be made ...
... sufficient signal to noise that high dynamic range maps can be made ...
transparencies - Rencontres de Moriond
... large Verdet constant, low absorption, high thermal conductivity @ 1064nm Thermal issue: TGG crystal absorbs (typically 2000ppm), creates change of mean temperature and a radial temperature gradient. As a consequence, 3 effects can limit the performances: 1) Refractive index of TGG temperature depen ...
... large Verdet constant, low absorption, high thermal conductivity @ 1064nm Thermal issue: TGG crystal absorbs (typically 2000ppm), creates change of mean temperature and a radial temperature gradient. As a consequence, 3 effects can limit the performances: 1) Refractive index of TGG temperature depen ...
Candidate detector assessment for the CASTOR
... Recent advances have shown that there is no intrinsic reason that silicon CMOS ROICs cannot match or even outperform CCDs in all areas of performance3. Modern multi-read sampling techniques effectively eliminate the problem of fixed pattern offset noise and variable gain characteristics can be calib ...
... Recent advances have shown that there is no intrinsic reason that silicon CMOS ROICs cannot match or even outperform CCDs in all areas of performance3. Modern multi-read sampling techniques effectively eliminate the problem of fixed pattern offset noise and variable gain characteristics can be calib ...
eScience: The Next Decade Will Be Exciting
... I’ve been pursuing these questions in Geography (with http://TerraService.Net), Astronomy (with the World-Wide telescope -- e.g. http://SkyServer.Sdss.org and http://www.ivoa.net/) 2and more recently in bio informatics (with portable PubMedCentral). ...
... I’ve been pursuing these questions in Geography (with http://TerraService.Net), Astronomy (with the World-Wide telescope -- e.g. http://SkyServer.Sdss.org and http://www.ivoa.net/) 2and more recently in bio informatics (with portable PubMedCentral). ...
IRTF Adaptive Optics System Review
... (sliding the Apd Rack mount out will make it easier to get at the bolts and pivot brackets) 3) Move the WFS box AWAY from the VJ of NSFCAM. 4) Rotate the pivot brackets in or out depending on Plate scale to use 5) Make sure the field adjusted spacers are in place 6) Bring WFS box in slowly, the tape ...
... (sliding the Apd Rack mount out will make it easier to get at the bolts and pivot brackets) 3) Move the WFS box AWAY from the VJ of NSFCAM. 4) Rotate the pivot brackets in or out depending on Plate scale to use 5) Make sure the field adjusted spacers are in place 6) Bring WFS box in slowly, the tape ...