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... (ALMA) is the largest and highest priority project for the National Radio Astronomy Observatory, its parent organization, Associated Universities, Inc., and the National Science Foundation – Division of Astronomical Sciences. Operating at an elevation of more than 5000m on the Chajnantor plateau in ...
... (ALMA) is the largest and highest priority project for the National Radio Astronomy Observatory, its parent organization, Associated Universities, Inc., and the National Science Foundation – Division of Astronomical Sciences. Operating at an elevation of more than 5000m on the Chajnantor plateau in ...
Focus and pointing adjustments necessary for laser guide star
... In the Keck LGS AO system, a 589-nm sodium laser is pointed at the mesospheric sodium layer and the fluorescent return signal wavefront is monitored by the WFS for atmospheric turbulence. Consistent with NGS AO, shaping commands are sent to the DM to correct sensed wavefront errors. However, several ...
... In the Keck LGS AO system, a 589-nm sodium laser is pointed at the mesospheric sodium layer and the fluorescent return signal wavefront is monitored by the WFS for atmospheric turbulence. Consistent with NGS AO, shaping commands are sent to the DM to correct sensed wavefront errors. However, several ...
Orion SkyView Pro™ 127 EQ Telescope Instruction Manual
... screw ends are flush with the inside diameter of the bracket. Place the O-ring that comes on the base of the bracket over the body of the finder scope until it seats into the slot on the middle of the finder scope. Slide the eyepiece end (narrow end) of the finder scope into the end of the bracket’s ...
... screw ends are flush with the inside diameter of the bracket. Place the O-ring that comes on the base of the bracket over the body of the finder scope until it seats into the slot on the middle of the finder scope. Slide the eyepiece end (narrow end) of the finder scope into the end of the bracket’s ...
ULTRA Optics - Composite Mirror Applications Inc.
... For quantifying the wave front quality of the CFRP mirrors, we used a HASO-32 Shack-Hartman wave front sensor. The instrument has a large dynamic range and is relatively insensitive to atmospheric disturbances. The number 32 corresponds to the 32 X 32 micro-lenslet array used as the Shack-Hartman ar ...
... For quantifying the wave front quality of the CFRP mirrors, we used a HASO-32 Shack-Hartman wave front sensor. The instrument has a large dynamic range and is relatively insensitive to atmospheric disturbances. The number 32 corresponds to the 32 X 32 micro-lenslet array used as the Shack-Hartman ar ...
A Synopsis of the Paper, “Optical Performance of the James Webb
... The WFE total for NIRCam is computed by the RSS of the OTE, ISIM, and WFS&C errors. Each of these subsystems have budgeted their allowable WFE to their respective individual components. For example a portion of the OTE allocation of 131 nm rms is allocated to design residual, alignment, and figure e ...
... The WFE total for NIRCam is computed by the RSS of the OTE, ISIM, and WFS&C errors. Each of these subsystems have budgeted their allowable WFE to their respective individual components. For example a portion of the OTE allocation of 131 nm rms is allocated to design residual, alignment, and figure e ...
2009 THE INTERNATIONAL YEAR OF ASTRONOMY
... The Danish astronomer Tycho Brahe (1546 – 1601) was the greatest observer of his time. ...
... The Danish astronomer Tycho Brahe (1546 – 1601) was the greatest observer of his time. ...
dew/frost prevention
... what is dew? Dew is caused by moisture in air and temperature differentials. Warm air can hold more moisture; cold air less. The measurement of the water-to-air ratio is relative humidity (RH). When moist warm air cools to the dew point temperature the air will become saturated. At the dew point the ...
... what is dew? Dew is caused by moisture in air and temperature differentials. Warm air can hold more moisture; cold air less. The measurement of the water-to-air ratio is relative humidity (RH). When moist warm air cools to the dew point temperature the air will become saturated. At the dew point the ...
Project Manager Presentation to the TMT Board
... – Construction start date slated for April 2014 ...
... – Construction start date slated for April 2014 ...
Inferring Telescope Polarization Properties Through
... Polarimetric observations taken with ground- or space-based telescopes usually need to be corrected for changes of the polarization state induced in the optical path. In this paper, I present a new technique to determine the polarization properties of a telescope through observations of spectral lin ...
... Polarimetric observations taken with ground- or space-based telescopes usually need to be corrected for changes of the polarization state induced in the optical path. In this paper, I present a new technique to determine the polarization properties of a telescope through observations of spectral lin ...
Design, fabrication, and open-loop control of micro deformable mirrors for Contents
... wavelengths (10-12). Space-based imaging offers the opportunity to avoid the dynamic aberrations introduced by the atmosphere. Space based AO compensate for imperfections in the telescope optics, and is needed for high contrast coronagraphy. ...
... wavelengths (10-12). Space-based imaging offers the opportunity to avoid the dynamic aberrations introduced by the atmosphere. Space based AO compensate for imperfections in the telescope optics, and is needed for high contrast coronagraphy. ...
... the Adaptive optics facility, using four Laser- and one natural guide-stars to measure the turbulence, and correcting for it by deforming the adaptive secondary mirror of a Unit telescope in the Paranal observatory. The outstanding feature of GRAAL is the extremely wide field of view correction, ove ...
A Decadal Strategy for Human Capacity Development in Astronomy
... Two significant recent documents were the International Panel Review of the Astro‐Geo‐ Science Facilities, 1999‐20041, and the report that resulted from a series of meetings coordinated in 2005 by NRF with representatives from university groups (UCT, UKZN, UFS, UNISA and oth ...
... Two significant recent documents were the International Panel Review of the Astro‐Geo‐ Science Facilities, 1999‐20041, and the report that resulted from a series of meetings coordinated in 2005 by NRF with representatives from university groups (UCT, UKZN, UFS, UNISA and oth ...
GMT site, enclosure, and facilities design and development
... characteristics of the site and its geotechnical composition. Although the initial geotechnical investigation provided information detailing the summit site proper, minimal information was known about the broader site area where the support facilities will be located. During rough grading activities ...
... characteristics of the site and its geotechnical composition. Although the initial geotechnical investigation provided information detailing the summit site proper, minimal information was known about the broader site area where the support facilities will be located. During rough grading activities ...
Spike: AI Scheduling for Hubble Space Telescope After 18 Months
... radiation belts, andstray light fromthe sun, moon,or bright earth. Thereare also constraints arising fromthermal and powerconsiderations, whichtend to restrict the allowable attitudeof the satellite at differenttimesduringthe year.Sci1 Introduction entific constraints are specified by astronomerswhe ...
... radiation belts, andstray light fromthe sun, moon,or bright earth. Thereare also constraints arising fromthermal and powerconsiderations, whichtend to restrict the allowable attitudeof the satellite at differenttimesduringthe year.Sci1 Introduction entific constraints are specified by astronomerswhe ...
Orion StarMax 127 EQ Manual
... Note: The image in the telescope’s eyepiece will appear inverted from left-to-right (mirror reversed), which is normal for telescopes that utilize a star diagonal. The image in the finder scope is oriented the same as the naked eye. By loosening or tightening the alignment thumbscrews, you change th ...
... Note: The image in the telescope’s eyepiece will appear inverted from left-to-right (mirror reversed), which is normal for telescopes that utilize a star diagonal. The image in the finder scope is oriented the same as the naked eye. By loosening or tightening the alignment thumbscrews, you change th ...
... In terms of mechanical quality, consistency, and comparative comprehensiveness of the system UNITRON was among the better telescope brands sold in the USA. These telescopes, mounts, and accessories were manufactured in Japan and distributed in the Americas from 1951 to about 1992. Their refracting t ...
Appendix B-Collimation - Backyard Astronomer`s Guide
... 4. Gently wipe the lens. Do not press hard. If the stain is stubborn, use new swabs or cotton balls. Sometimes, gently breathing on the lens can help remove stains. 5. Use a dry swab or cotton ball for a final cleaning of moist areas, plus some more air puffs to blow off the bits of tissue that inev ...
... 4. Gently wipe the lens. Do not press hard. If the stain is stubborn, use new swabs or cotton balls. Sometimes, gently breathing on the lens can help remove stains. 5. Use a dry swab or cotton ball for a final cleaning of moist areas, plus some more air puffs to blow off the bits of tissue that inev ...
AstroMaster Series Telescopes
... Take time to read through this manual before embarking on your journey through the Universe. It may take a few observing sessions to become familiar with your telescope, so you should keep this manual handy until you have fully mastered your telescope’s operation. The manual gives detailed informati ...
... Take time to read through this manual before embarking on your journey through the Universe. It may take a few observing sessions to become familiar with your telescope, so you should keep this manual handy until you have fully mastered your telescope’s operation. The manual gives detailed informati ...
The photometric system of the One
... 2012). The yearly average and standard deviation of seeing in the past six years were calculated and are shown as red dots in the left panel of Figure 2 (the standard deviation is represented by error bars). The seeing condition has been stable in the past six years. The small variation is probably ...
... 2012). The yearly average and standard deviation of seeing in the past six years were calculated and are shown as red dots in the left panel of Figure 2 (the standard deviation is represented by error bars). The seeing condition has been stable in the past six years. The small variation is probably ...
5. System Engineering
... Level 1 Requirements also include indirect ones, as well as guidelines and targets. Those may reflect constraints and objectives not directly related to scientific objectives but to technical, programmatic, or even legal considerations (e.g. compliance with legal safety standards). At this stage, ch ...
... Level 1 Requirements also include indirect ones, as well as guidelines and targets. Those may reflect constraints and objectives not directly related to scientific objectives but to technical, programmatic, or even legal considerations (e.g. compliance with legal safety standards). At this stage, ch ...
Additive manufacturing and high resolution X-ray optics
... optics and the X-ray domain. Goal: To design and build some X-ray reflecting prototypes that show potential for a golden quadrant future X-ray telescope. ...
... optics and the X-ray domain. Goal: To design and build some X-ray reflecting prototypes that show potential for a golden quadrant future X-ray telescope. ...
Telescope 101 – An Introduction To The World Of Telescopes
... away, as you stand with your mouth open trying to take in this natural showcase. Sometimes it is cold, with the wind whistling around your ears. But in the face of this wonder you could be in another world and you temporarily forget where you are. At first appearance the stars appear to be arranged ...
... away, as you stand with your mouth open trying to take in this natural showcase. Sometimes it is cold, with the wind whistling around your ears. But in the face of this wonder you could be in another world and you temporarily forget where you are. At first appearance the stars appear to be arranged ...
497 Autostar Manual for DS-2090AT-TC and DS-2102AT-TC
... GLOSSARY What is an elliptical galaxy? How far away is the Sun? Expand your knowledge of astronomy by displaying terms and definitions, and other information. ...
... GLOSSARY What is an elliptical galaxy? How far away is the Sun? Expand your knowledge of astronomy by displaying terms and definitions, and other information. ...
Document
... Reading Assignments • I will expect you to do the reading BEFORE class • Then if you want, go back and read more deeply after the lecture, to resolve areas which seem confusing • From time to time I will give small “Reading Quizzes” at the start of a class, where I ask three questions that you’ll b ...
... Reading Assignments • I will expect you to do the reading BEFORE class • Then if you want, go back and read more deeply after the lecture, to resolve areas which seem confusing • From time to time I will give small “Reading Quizzes” at the start of a class, where I ask three questions that you’ll b ...
Arecibo Observatory
The Arecibo Observatory is a radio telescope in the municipality of Arecibo, Puerto Rico. This observatory is operated by SRI International, USRA and UMET, under cooperative agreement with the National Science Foundation (NSF). This observatory is also called the National Astronomy and Ionosphere Center, although ""NAIC"" refers to both the observatory and the staff that operates it. From its construction in the 1960s until 2011, the observatory was managed by Cornell University.The Observatory's 1,000 ft (305 m) radio telescope is the world's largest single-aperture telescope. It is used in three major areas of research: radio astronomy, atmospheric science, and radar astronomy. Scientists who want to use the Arecibo Telescope submit proposals that are evaluated by an independent scientific board.The Radio Telescope has made appearances in motion picture and television productions, gaining more recognition in 1999 when it began to collect data for the SETI@home project. It has been listed on the American National Register of Historic Places beginning in 2008. It was the featured listing in the National Park Service's weekly list of October 3, 2008. The Center was named in IEEE Milestone in 2001. It has a visitors center that is open part time.