... The system temperature for the Alfa receiver is computed by month using all of the spectral line cal on/offs (wapp data) taken (see computing tsys from the archive for a description of how it is computed). ... c2*(za-14)^2 is only used for za gt 14 degrees. rotA is the rotation angle of the alfa feed . ... The fit sigma's ranged from .47K to .67 There are 14 plots in all (one for each pixel/polarization). ... The plots for each pixel/polarization: (.ps files about 10 Mb, .pdf files about 3 Mb) . ...

... GOODS unites extremely deep observations from NASA's Great Observatories, Spitzer , Hubble , and Chandra , ESA's Herschel and XMM-Newton , and from the most powerful ground-based facilities, to survey the distant universe to the faintest flux limits across the electromagnetic spectrum. ... The space-based observations are complemented by ground-based imaging and spectroscopy, including extensive commitments of ESO and NOAO observing time. ... 2010-04-10: Deep VLA 1.4 GHz data for GOODS-North . ...

The Parkes 21cm Multibeam Receiver is a new facility available on the Parkes Telescope which is operated by the Australia Telescope National Facility (ATNF), CSIRO. The facility consists of a 13-beam cooled 21cm receiver system, located at the prime focus of the 64m dish. ... Completed 21cm Multibeam Receiver being hoisted up to the Parkes focus cabin. ... It is now available, in 64 MHz mode and in pulsar mode, for normal National Facility use. ... Beam 1 . Beams 2-7 . ... Frequency Range . ...

In the PROJECT we are using the following peculiar . features of RATAN-600 . ... Brightness temperature sensitivity being equal to the antenna temperature sensitivity .. ... Receiver system .. ... Using aperture averaging effect. dual- beam and dual (multi-) frequency filtration, we demonstrated full filtration of the atmosphere noise down to the receiver noise at all scales of acoustics peaks ( Fig.1 , Fig 2 ). ... We select this frequency as the central one in our project. ... Antenna surface . ...

... Neptune's Great Dark Spot: Gone But Not Forgotten . ... Credit Copyright: Voyager Project, JPL , NASA Explanation: When NASA's Voyager 2 spacecraft flew by distant Neptune in August of 1989, astronomers were shocked. ... The Voyager data also revealed that the Great Dark Spot varied significantly in size during the brief flyby. ... Publications with keywords: Great Dark Spot - Voyager project - Neptune - Voyager 2 . Publications with words: Great Dark Spot - Voyager project - Neptune - Voyager 2 . ...

... May 8, 1996 . Neptune's Great Dark Spot: Gone But Not Forgotten . Credit: Voyager Project, JPL , and NASA . Explanation: When NASA's Voyager 2 spacecraft flew by distant Neptune in August of 1989, astronomers were shocked . ... One of the most spectacular discoveries was of the Great Dark Spot , shown here in close-up. ... The Voyager data also revealed that the Great Dark Spot varied significantly in size during the brief flyby. ... About APOD | ... NASA Technical Rep.: ...

... If the number of octets is greater than the number of characters sent, the modems probably used MNP5 compression on an already compressed file, and the result was expanded data. ... Disconnect Reason: Possible reasons the modem hung up are as follows: A Rootless Tree: The modem received an invalid V.42 bis (compression) frame. ... Extra Stepup: The modem received an invalid V.42 bis (compression) frame. ... Invalid Codeword: The modem received an invalid V.42 bis (compression) frame. ...

... Tonight's Sky . ... Astronomy for Kids . ... Do orbital motions between galaxies affect calculations of the cosmological redshift? ... RELATED TOPICS: COSMOLOGICAL REDSHIFT . ... The observed redshift, or wavelength shift due to motion, of a galaxy s characteristic light spectrum is a combination of the galaxy s motion with respect to its neighbors ( peculiar velocity ) and the expansion of the universe ( cosmological redshift ). ... Get instant access to subscriber content on Astronomy.com! ...

... Home Observing Great Kills, Staten Island . ... Clear Sky Chart . ... Great Kills, Staten Island . ... Beyond New York City . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... Amateur Astronomers Medal . ... Take the Verrazano-Narrows Bridge (1 on Staten Island map) to Staten Island. ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

... Science User Portal . ... ESO, the European Southern Observatory . ... Weekend Visits to the ALMA OSF . ... ESO Acronyms . ... Survey Telescopes . ... Advanced Search . ... ESO Science Newsletter . ... ESO Submillimetre Telescope . ... Window on the Universe . ... After more than five years of development and construction, ALMA successfully opened its eyes on another frequency range after obtaining the first fringes with a Band 5 receiver, specifically designed to detect water in the local Universe....

... In the first page of this chapter, Eddington computes an effective temperature of 3.18 K, but this has nothing to do with the 2.725 K blackbody spectrum of the Cosmic Microwave Background (CMB) . Here is a quote of what Eddington actually said: . ... We shall first calculate the energy density of this radiation. ... It is clear that Eddington's model fits the optical data, but that Eddington did not anticipate either the CMB (red curve) or the interstellar dust (ISD, green curve). ...

... Listed below are questions submitted by users of "The Great Magnet, the Earth" and the answers given to them. ... In "The Exploration of the Earth's magnetosphere" on the magnetic environment of the Earth in space (a few Q duplicated here) . ... 11) Magnetic Shielding . ... 51) Can electricity be generated from the Earth's magnetic field? ... 9) Measuring Earth's magnetic field . ... 6) Reversals of the Earth's field (4 queries) . ... 42) Could generated electricity affect Earth's magnetic field? ...

... Listed below are questions submitted by users of "The Great Magnet, the Earth" and the answers given to them. ... In "The Exploration of the Earth's magnetosphere" on the magnetic environment of the Earth in space (a few Q duplicated here) . ... 11) Magnetic Shielding . ... 51) Can electricity be generated from the Earth's magnetic field? ... 9) Measuring Earth's magnetic field . ... 6) Reversals of the Earth's field (4 queries) . ... 42) Could generated electricity affect Earth's magnetic field? ...

Terahertz Imaging System based on Superconducting Integrated Receiver. ... Employing an SIR in an imaging system means building an entirely new instrument with many advantages compare to traditional systems : i) high temperature resolution , comparable to the best results for incoherent receivers; ii) high spectral resolution allowing spectral analysis of various substances; iii) the local oscillator The paper presents a prototype THz imaging system using an 1 pixel SIR. ...

National Aeronautics and Space Administration . Lyndon B. Johnson Space Center . ... MARY L. CLEAVE (PH.D., P.E.) . NASA ASTRONAUT (FORMER) . ... EXPERIENCE: Dr. Cleave held graduate research, research phycologist, and research engineer assignments in the Ecology Center and the Utah Water Research Laboratory at Utah State University from September 1971 to June 1980. ... Dr. Cleave left JSC in May 1991 to join NASA's Goddard Space Flight Center in Greenbelt, Maryland. ...

In Memory of Vsevolod Gantmakher . ... Having received his Ph.D. in 1964, V. Gantmakher continued work at the Institute of Solid State Physics (ISSP) of the USSR Academy of Sciences, which had been founded a year before. For the next three years, he worked on his D.Sc. thesis at IPP. ... For many years, as an outstanding personality and highest scientific authority, V.Gantmakher made a remarkable contribution to creating a friendly atmosphere and a creative approach to the research work at ISSP. ...

It is a matter of common knowledge that in processes of genesis and evolution of many solar phenomena participate magnetic fields of sunspots. ... As a basis for formation of the database we take data on magnetic fields, collected by set of observatories during many years of observations. ... Section "Magnetic field data" contains data of magnetic field observation for separate sunspots, presented in standard text format (ASCII). ... Description of structure of these files is presented here . ...

Next: Calling Parameters Up: CAL_pnCtiCorrect Previous: CAL_pnCtiCorrect Contents . This routine corrects for a list of EPIC PN events the energy values for the effect of CTI. The effect is position dependent, i.e., the routine receives spatial event coordinates in addition to the uncorrected energies. The routines operates on real-valued arrays, i.e., integer-valued PHA channels from ODF data sets must be converted to corresponding real arrays with routine. ... Michael Smith 2011-09-20 ...

... Radio astronomical tests of the engineering model of the space radio telescope (SRT) were completed in Pushchino - see Results . ... Monitoring of the development of the upgrade on-board 1.35-cm receiver (R-SRT-1.35 cm): . ... EM Engineering Model . ... OHCFS-SRT Space Radio Telescope On-board Heterodyne and Clock Frequency Synthesizer set . OHFS-SRT Space Radio Telescope On-board Hydrogen Frequency Standard . ORFS-SRT Space Radio Telescope On-board Rubidium Frequency Standard . ...

... Astrophysics Group . ... MRAO Telescopes . ... A radio telescope consists of one or more directional receiving aerials connected to very sensitive amplifiers. Since radio wavelengths range from millimetres to about 10 metres, the actual form of the aerials can vary greatly; many are parabolic dishes with very precise surfaces, while others, like the Cambridge Low-Frequency Synthesis Telescope (right), are similar to television aerials. ... Information provided by webmaster@mrao.cam.ac.uk . ...