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The infrared astronomical satellite (IRAS) mission
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Z . 278L l984ApJ Tm; ASTROPHYSICAL JOURNAL, 278:L1 L 1984 March 1 1984. The American Astronomical Society. All rights reserved. Printed in USA THE INFRARED ASTRON OMI CAL SA TELLI TE (IRAS)1 MISSION G. NEUGEBAUER,2 HJ HABING,3 R. VAN
Satellitesized planetesimals and lunar origin
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Exploratory calculations using aceretionary theory are made to demonstrate plausible sizes of second-largest, third-largest, etc., bodies at the close of planet formation in heliocentric orbits near the planets, assuming asteroid-like size distributions at the start of the
TCP performance over satellite links
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Over the past few years, we have reported on the performance issues faced by TCP/IP based applications on satellite links. Performance is limited by the delay inherent in geosynchronous systems and the probability of bit errors found in any wireless system
City Lights Satellite Data to Map Urban Area
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REMOTE SENS. ENVIRON. 61361 370 (199 Published by Elsevier Science Inc. 655 Avenue of the Americas, New York, NY 10010 mine the location and estimate the density of population based on light sources has proved feasible in this exploratory effort. However 18 Rao, UR, Jayanthi, UB, and Prakasarao, AS, Astrophys. J. Lett., 15 L133 (1969). 19 Hudson, HS, Pelling, RM, Peterson, LE, and Schwartz, DA, Bull. Amer. Astron. Soc., 200 (1970). 20 Evans, WD, Belian, RD, and Connor, J. P., Astrophys. J. Lett., 15 L57 (1970). 21 Aconsiderable amount of experimental and theoretical work has been performed on the bursts of radio emission emanating from Jupiter at frequencies of about 20 Mcfs since this radiation was discovered by Burke and Franklin1 It was realized by Shain2 that the signals
Syndecan-3 and syndecan-4 specifically mark skeletal muscle satellite cells and are implicated in satellite cell maintenance and muscle regeneration
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Skeletal muscle development in the prospective limb consists of migration of committed myoblasts from limblevel somites into the limb field, colonization of the premuscle masses, patterning of future muscles, and differentiation into fast and slow contractile myofibers A SIMPLE technique is described here which locates regions of satellite or highly repetitive DNA within mammalian metaphase chromosomes and helps the study of relationships between these regions and those which are heterochromatic and late replicating. The
New techniques in satellite altimeter tracking systems
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Satellite radar altimelers have tracking and control systems designed specifically for the ocean surface. These systems have experienced difficulty in tracking the less predictable topographic surfaces of the Earth. This paper describes a new tracking algorithm designed
Atmospheric/topographic correction for satellite imagery
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The objective of any radiometric correction of airborne and spaceborne imagery of optical sensors is the extraction of physical earth surface parameters such as spectral albedo, directional reflectance quantities, emissivity, and temperature. To achieve this goal, theSIR-The temperature of the global atmosphere, particularly the lower troposphere (the lowest 7 km), is expected to rise because concentrations of gases such as carbon dioxide are increasing. Sophisticated yet still relatively idealized oceanatmosphere models indicate
Measurement of oceanic wind vector using satellite microwave radiometers
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We investigate the possibility of retrieving both wind speed and direction from microwave radiometer measurements of the ocean. The data for this investigation are the Special Sensor Microwave/Imager (SSM/I) measurements collocated with buoy reports from the2. PRINCIPLES OF GRADIOMETRY. We know from inertial surveying that the accelerometers of a moving measurement unit observe the so-called specific force, which is the sum of inertial and gravitational accelerations. And the two contributions can only be
The low energy particle (LEP) experiment onboard the Geotail satellite
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The low energy particle (LEP) instrument onboard GEOTAIL is designed to make comprehensive observations of plasma and energetic electrons and ions with fine temporal resolution in the terrestrial magnetosphere (mainly magnetotail) and in the interplanetary50 RJ. The radiation belt responsible for the decametric radio synchrotron emission extends to about 6 RJ so that Io moves deep in the magnetosphere near the belt boundary. The magnetosphere rotates with the planet,, causing Io to move westwards through the magnetosphere at a speed
A method for satellite identification of surface temperature fields of subpixel resolution
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It Is possible to measure surface radmnt temperature fields of subplxel spatial resolution from satellites which contain more than one channel m the thermal infrared spectral regmn Because of the different response of the Planck hmctmn at different wavelengths, the radmnt
A thermospheric model based on satellite drag data
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A three-dimensional thermospheric model is developped in terms of spherical harmonics by using satellite drag data which cover a time-period of almost two solar cycles. The model gives total density, partial densities (He, O, N2) and temperature as a function of solar and
New types of waveguide bandpass filters for satellite transponders
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Conventional communications satellite transponder designs employ multi-plexing systems based upon Chebycheff or Butterworth waveguide bandpass filters. Not only do these filters represent a significant percentage of the overall transponder weight, but the filtering
Accurate time and frequency transfer during common-view of a GPS satellite
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When all of the error contributions are only mode, requires no other data, yields receiver assessed, it appears that 1 ns time stability and prices that could be competitive on a mass produc-10 ns of time accuracy should be achievable in measuring remote clocks--at
Detection of landslide areas using satellite radar interferometry
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Three interferograms constructed from JERS-1 SAR data collected from June to October, 1995 were used to analyze the Itaya landslide in Japan by the three-pass method and the digital elevation model elimination (DEW method. The differential inte $ erogams produce CSE PROJECTS