类型
发表于 2025-3-25 04:30:28
A. L. P. Caforio,N. G. Mahon,W. J. McKennahe primary mirror suffers from spherical aberration. The resulting image quality is considerably below the design specifications, and causes a loss of sensitivity of approximately 2.5 magnitudes. Fortunately, the HST point spread function retains a sharp core having almost the nominal diffraction-li
ONYM
发表于 2025-3-25 09:00:43
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强行引入
发表于 2025-3-25 14:16:45
A. L. P. Caforio,N. G. Mahon,W. J. McKennahe Hubble Space Telescope. STSDAS achieves system independence by being fully layered on the Image Reduction and Analysis Facility (IRAF) developed at the National Optical Astronomy Observatories. STSDAS augments the general capabilities of IRAF, and along with other IRAF-based analysis packages suc
Diuretic
发表于 2025-3-25 17:27:31
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scrutiny
发表于 2025-3-25 21:10:22
Matthew Davenport,Laura E. Dickinson Ph.D.later the ROSAT telescope began its operation with an observation of the central parts of the Large Magellanic Cloud. This long awaited event marked the begin of a new phase in X-ray astronomy during that an extension of our present database on X-ray sources by an order of magnitude is expected.
失败主义者
发表于 2025-3-26 00:47:04
https://doi.org/10.1007/978-3-030-10698-0ute for Extraterrestrial Physics (MPE), which provides the scientific and calibration program input, and the German Space Operations Center (GSOC), whose responsibility it is to generate a mission timeline satisfying all operational constraints. An optimum solution for the mission timeline is achiev
符合规定
发表于 2025-3-26 05:01:23
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健谈
发表于 2025-3-26 09:34:18
Chronically Evolving Viral Hepatitisax-Planck Institut für Extraterrestrische Physik (MPE, Garching). As has been elaborated in a previous contribution the Standard Processing performs two major tasks: in a first step data are normalized and calibrated and then a Standard Image and Source Analysis is performed. The Principal Investiga
Amplify
发表于 2025-3-26 16:01:36
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remission
发表于 2025-3-26 18:44:09
HST Image Restoration - Status and Prospectsds, hardly seen before in optical astronomy. The characteristics of the aberrated point-spread function together with the stochastic properties of quantum-limited data have lead to the recognition of statistical algorithms as the methods of choice for HST image restoration.