In-flight performance of the IUE

  title={In-flight performance of the IUE},
  author={Albert Boggess and Ralph C. Bohlin and D. C. Evans and H. R. Freeman and Theodore R. Gull and Sara R. Heap and Daniel A. Klinglesmith and G. R. Longanecker and Warren M. Sparks and D. K. West and Albert V. Holm and P. M. Perry and Francis Schiffer and Barry E. Turnrose and C. C. Wu and Arthur Lonne Lane and Jeffrey L. Linsky and Blair D. Savage and Piero Benvenuti and Angelo Cassatella and Jean Clavel and Andr{\'e} Heck and Ferdinando Duccio Macchetto and Michael V. Penston and Pierluigi Selvelli and E. Dunford and Prabhakar Gondhalekar and Mildred B. Oliver and Michael C. W. Sandford and David J. Stickland and Alec Boksenberg and Craig I. Coleman and M. A. J. Snijders and R. J. Wilson},
After the IUE's successful launch into an eccentric geosynchronous orbit, and following initial spacecraft checkout, observations were made of a set of high priority targets as an insurance against premature failure of the system. These were followed by the systematic performance evaluation of the various spacecraft and scientific instrument sub-systems, some of which were optimised in orbit. The optical performance of the telescope and spectrograph and the photometric performance of the SEC… 

New Methods of Determining Spacecraft Attitude

A new method was developed which required pointing the spacecraft at the antisolar position, which utilizes IUE’s ability to track the sun with a solid state two-dimensional sun sensor and can now be completed in several hours.

The history of IUE

The International Ultraviolet Explorer, in the form of its acronym, IUE, has become a household name to astronomers throughout the world. Launched on January 26, 1978, it is still operational at the

Solar motion-based method of attitude recovery - Application to International Ultraviolet Explorer

The International Ultraviolet Explorer is a geosynchronous orbiting telescope launched by NASA January 26, 1978, and operated jointly by NASA and the European Space Agency. The spacecraft was built

Extragalactic Work with IUE

The International Ultraviolet Explorer (IUE) is an 18 inch (45 cm) space telescope for ultraviolet spectrophotometry in geosynchronous orbit and is a joint project of the European Space Agency, the

High resolution spectroscopy in the far UV: Observations of the interstellar medium by IMAPS on ORFEUS-SPAS

The Interstellar Medium Absorption Profile Spectrograph (IMAPS) is an objectivegrating, echelle spectrograph built to observe the spectra of bright, hot stars over the spectral region 950–1150Å,

Science merit function for the Kepler mission

Examples of sensitivity analyses that supported design decisions and risk assessments are provided to illustrate the potential broader utility of this approach to other complex science-driven space missions.

Space Telescopes: an International Perspective

  • I. Tuohy
  • Physics
    Publications of the Astronomical Society of Australia
  • 1989
Abstract The purpose of this paper is to review current and planned Space Astronomy missions from an international perspective, with principal attention to the programs of the USA, Europe, Japan and

Time-Resolved Observations of Jupiter's Far-Ultraviolet Aurora

Simultaneous imaging and spectroscopic observations of Jupiter's far-ultraviolet aurora covering half a jovian rotation were made on 31 May 1994. The Hubble Space Telescope Wide Field Planetary

A Multiwavelength Perspective of Flares on HR 1099: 4 Years of Coordinated Campaigns

We report on 4 years of multiple wavelength observations of the RS CVn system V711 Tau (HR 1099) from 1993, 1994, 1996, and 1998. This combination of radio, ultraviolet (UV), extreme ultraviolet

How to Use IUE Data

The very large body of data in the IUE data-banks will continue to be of enormous value to astronomers for many years beyond the termination of the satellite’s active life. However, the effective use



IUE observations of Solar System objects

During the scientific commissioning phase of IUE several spectra were acquired from objects residing in the Solar System. The activities focused on testing numerous parameters which would indicate

Ultraviolet photometry from the Orbiting Astronomical Observatory. XXI - Absolute energy distribution of stars in the ultraviolet

The absolute energy distribution in the ultraviolet is given for the stars ..cap alpha.. Vir, eta UMa, and ..cap alpha.. Leo. The calibration is based upon absolute heterochromatic photometry

IUE observations of the interstellar medium

Results from a preliminary study of interstellar absorption lines in the spectra of the three stars HD149757, HD93521 and HD153919, observed by the IUE during its commissioning phase are presented.

IUE observations of extragalactic objects

During the commissioning phase of IUE several extragalactic objects were observed spectrally at low dispersion in the UV range λλ1150–3200: the Seyfert galaxies NGC4151 and NGC1068, the QSO 3C273,

IUE observations of hot stars: HZ43, BD + 75°325, NGC6826, SS Cygni, η Carinae

During the commissioning phase of IUE observations were made of a selection of hot stars: the white dwarf HZ43, the hot subdwarf BD + 75°325, the nucleus of the planetary nebula NGC6826, the dwarf

IUE observations of X-ray sources: HD153919 (4U1700–37), HDE226868 (Cyg X-1), HZ Her (Her X-1)

The first UV spectroscopic measurements of binary X-ray sources with IUE show highly variable emission from a photoionised plasma in the object HZ Her, and give evidence for localised circumsystem

IUE observations of cool stars: α Aurigae, HR1099, λ Andromedae, and ε Eridani

Initial IUE observations of four cool stars are reported. Observed fluxes and surface fluxes are given for several UV emission lines in the spectral range 1,175–2,000 Å, obtained at low and high

Compact far ultraviolet emission source with rich spectral emission 1150-3100 A.

A new compact far uv emission source suitable for laboratory or space applications that has met rigid spacecraft environmental tests and also is a very useful transfer standard for absolute sensitivity calibrations of spectrometric instruments.