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1. The Previous vs. Current Generation: WF/PC-1 vs. WFPC2
For historical reasons, it is useful to offer comparisons between the current WFPC2, and its predecessor WF/PC-1, which was returned to Earth in December 1993. Field format: WF/PC-1 contained 8 cameras and CCDs, each CCD having 800 x 800 pixels. ... Many differences derive from the fact that the WF/PC-1 CCDs were thinned, backside illuminated devices whereas the WFPC2 CCDs are thick, frontside illuminated devices. ... WFPC2 devices have much less CTE error, and hence no preflash is used. ...
[ Сохраненная копия ]  Ссылки http://www.stsci.edu/instruments/wfpc2/Wfpc2_hand4/ch1_introduction5.html -- 12.2 Кб -- 04.09.2001
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2. http://www.naic.edu/~rfiuser/smarg-cleanup.html
Both gripes from users and continued spectrum monitoring initiate in-house and off-site searches for the source of Radio Frequency Interference. The digital equipment used in various backends, frequency synthesizers at different mixing stages of the IF/LO, electric motors, video cameras used for safety-status monitoring, on-site vehicles, displays at the Visitor Center could in principle cause internally generated RFI. ... Summer 97 project of Francisco (to be linked) . ...
[ Сохраненная копия ]  Ссылки http://www.naic.edu/~rfiuser/smarg-cleanup.html -- 2.2 Кб -- 09.10.2000
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Еще в разделе: (Показать все результаты (>2445) - www.naic.edu/ )

3. Astronomy HyperText Book: Stellar Evolution
... Stellar Evolution is driven entirely by the never ending battle between Pressure and Gravity . As imbalances are reached, the star is driven to find a new Energy source. ... Pressure and gravitational forces are equal, the star is stable and its core is sufficiently hot to fuse Hydrogen into Helium More about main sequence stars . ... The luminosity generated by the core fusion of Helium into Carbon is far greater than the shell luminosity associated with the fusion of Hydrogen into Helium. ...
[ Сохраненная копия ]  Ссылки http://zebu.uoregon.edu/textbook/se.html -- 4.8 Кб -- 16.12.1997
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4. S.P.Korolev RSC Energia - PRODUCTION OF CONSUMER GOODS
CATALOG OF CONSUMER GOODS . KEY TECHNOLOGIES FOR CONSUMER GOODS PRODUCTION . ... PRESSURE COOKER . Pressure Cooker "MINUTKA" . In order to cook quicker, a range of pressure cookers of 4,5; 6,0; 8,0; 10 l in volume is produced. ... Pressure cooker can be used for cooking, steaming any food products. ... Pressure cooker design ensures its long-term safe operation, provided that its Operation Manual requirements are met. ... Official WEB-site of S.P.Korolev RSC Energia . ...
[ Сохраненная копия ]  Ссылки http://www.energia.ru/eng/conversion/tnp/catalog/skorovarka_minutka.html -- 9.6 Кб -- 18.08.2009
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5. Generation from In-Orbit Data
Next: PSF1DRB Up: PIXTOPIXSENS Previous: Generation from Ground Calibration Contents . Ideally the in-orbit PixToPixSens file will be generated from internal calibration measurements using the fullframe high resolution engineering mode. However due to their large data volume the fullframe high resolution data won't be available frequently enough to base the in-flight generation of the PixToPixSens file on the high resolution data. ... i.e. the average counts per pixel per CCD-frame . ...
[ Сохраненная копия ]  Ссылки http://xmm.vilspa.esa.es/calibration/documentation/CALHB/node946.html -- 6.8 Кб -- 20.09.2011
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6. Back-Illumination Paper-CCD Operations
1.2 CCD Operations, Performance Parameters, and CCD . Transfer Curves . Low-light-level CCD performance parameters are grouped into four primary CCD operations: 1) Charge Generation (e.g. QE), 2) Charge Collection (e.g. MTF), 3) Charge Transfer (e.g. CTE), and 4) Charge Detection (e.g. Read Noise). ... Four Basic CCD Operations and Associated Performance Parameters and CCD Transfer Curves Used to Measure Performance . ... Charge Transfer Performance Parameters and CCD Transfer Curve Tests . ...
[ Сохраненная копия ]  Ссылки http://www.sao.ru/drabek/CCDP/TUTORIAL/BackIllum/tutorial-illum-ccdoperation.htm -- 14.6 Кб -- 12.11.1998
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7. http://www.mrao.cam.ac.uk/projects/OAS/pmwiki/uploads/MROIFastTipTilt.TechMeet4/CameraThermalControlIssues.pdf
... Both Surface temp any object `near' beam to be within 2°C of ambient 21 May 2010 FTT Technical meeting 2 Camera Thermal Operation Scenarios No enclosure cooling fan running: not acceptable if the air temperature in the enclosure is lower than -5°C [0°C from camera spec] No control over humidity ­ dew point problems Start-up issues in cold weather allows some ventilation but otherwise allows ... Peltier on: set temperature of -85°C produces T = 8°C camera has a 50mm silent fan. ...
[ Текст ]  Ссылки http://www.mrao.cam.ac.uk/projects/OAS/pmwiki/uploads/MROIFastTipTilt.TechMeet4/CameraThermalControlIssues.pdf -- 269.7 Кб -- 21.05.2010
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8. APOD: 2004 March 11 - Henize 206: Cosmic Generations
... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2004 March 11 . Henize 206: Cosmic Generations . ... JPL , Caltech , NASA . Explanation: Peering into a dusty nebula in nearby galaxy the Large Magellanic Cloud, infrared cameras on board the Spitzer Space Telescope recorded this detailed view of stellar nursery Henize 206 filled with newborn stars. ... About APOD | ...
[ Сохраненная копия ]  Ссылки http://www.sai.msu.su/apod/ap040311.html -- 5.0 Кб -- 02.10.2012
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9. Астронет > Henize 206: Cosmic Generations
... Henize 206: Cosmic Generations . ... JPL , Caltech , NASA Explanation: Peering into a dusty nebula in nearby galaxy the Large Magellanic Cloud, infrared cameras on board the Spitzer Space Telescope recorded this detailed view of stellar nursery Henize 206 filled with newborn stars. ... Near the top, the sweeping telltale arcs of a supernova remnant are also visible, expanding debris from the final explosion of a massive star . ... NASA Web Site Statements, Warnings, and Disclaimers . ...
[ Сохраненная копия ]  Ссылки http://www.astronet.ru/db/msg/1196921/eng/ -- 22.3 Кб -- 11.03.2004
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10. ESO - Thesis Topic: Next generation Fornax Cluster surveys
... Science . ... Science Users Information > Science Activities > PhD Thesis Topics offered by ESO Faculty Members > Thesis Topic: Next generation Fornax Cluster surveys . ... Data Handling and Products . ... Science Data Products Forum . ... An international team, with Dr. Hilker as Co-PI, has started to gather wide-field optical and infrared imaging data as well as spectroscopic data on the whole extent of the Fornax cluster, mainly based on observations with ESO telescopes (VLT, VST, VISTA). ...
[ Сохраненная копия ]  Ссылки http://www.eso.org/sci/activities/thesis-topics/abstr-hilker04.html -- 27.3 Кб -- 10.04.2016