Engineering feasibility study of a kilometer wave orbiting telescope, phase 2 Final report

Engineering feasibility study on structural dynamics, antenna electrical properties, and systems of kilometer wave orbiting telescop

Investigation of galactic and planetary radio astronomy Third semiannual status report, Jan. - Jun. 1965

Galactic and planetary radio astronomy - sounding rocket launch, orbiting telescope, carbon-oxygen complex photochemistry, Mars ionosphere, topside electron density, and nonrigid bodie

OGO-3 data reduction. OGO-2 and 4 data analysis Final technical report, 30 Sep. 1967 - 15 Aug. 1968

Data processing summary for OGO radio astronomy experiment

Investigation of Galactic and Planetary Radio Astronomy Status Report, Jul. - Dec. 1965

Sounding rocket flight to measure cosmic radiation intensity and studies of Martian atmosphere and ionospher

Results from Orbiting Geophysical Observatory 1 Final scientific report

Operational performance of radiometer antenna on OGO-

Data user's notes of the radio astronomy experiment aboard the OGO-V spacecraft

General information concerning the low-frequency radiometer, instrument package launching and operation, and scientific objectives of the flight are provided. Calibration curves and correction factors, with general and detailed information on the preflight calibration procedure are included. The data acquisition methods and the format of the data reduction, both on 35 mm film and on incremental computer plots, are described

Engineering Feasibility Study of a Kilometer Wave Orbiting Telescope, Phase 1 Final Report

Radio telescope, rhombic antenna, and sensors studied for feasibility of kilometer wave orbit telescope progra

Instrumentation for radio astronomy measurements aboard the IMP-I spacecraft

The design considerations and performance parameters of a satellite-borne instrumentation system are discussed. The system is designed to make radio astronomy measurements at eight discrete frequencies from 50 kHz to 3.53 MHz. These measurements are to detect solar and Jovian radio frequency bursts and to determine the average cosmic background radiation level down to 50 kHz. Procedures used for preflight and inflight calibration of the radiometer and the ground support equipment used for preflight testing are described

Automated production of high rep rate foam targets

Manufacturing low density targets in the numbers needed for high rep rate experiments is highly challenging. This report summarises advances from manual production to semiautomated and the improvements that follow both in terms of production time and target uniformity. The production process is described and shown to be improved by the integration of an xyz robot with dispensing capabilities. Results are obtained from manual and semiautomated production runs and compared. The variance in the foam thickness is reduced significantly which should decrease experimental variation due to target parameters and could allow for whole batches to be characterised by the measurement of a few samples. The work applies to both foil backed and free standing foam targets.Publisher PDFPeer reviewe

Kilometer-wave type III burst: Harmonic emission revealed by direction and time of arrival

A type III solar burst was observed at seven frequencies between 3.5 MHz and 80 kHz by the Michigan experiment aboard the IMP-6 satellite. From the data we can determine burst direction-of-arrival as well as time-of-arrival. We predict these quantities using simple models whose parameters we vary to obtain a good fit to the observations. We find that between 3.5 MHz and 230 kHz the observed radiation was emitted at the fundamental of the local plasma frequency while below 230 kHz it was emitted at the second harmonic. The exciter particles that produced the burst onset and burst peak have velocities of 0.27 and 0.12, respectively, in units of the velocity of light.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/43734/1/11207_2004_Article_BF00153676.pd