| Name | 54204C2S |
| Title | PHT SUn straylight assesment C200 celestial standard measurement |
| URL | |
| DOI | https://doi.org/10.5270/esa-hfv4arr |
| Author | Ulrich Klaas |
| Description | the level of the sun straylight is assessed during the solar eclipse period in september-october 97. the telescope is pointed to a position on the sky which has a solar aspect angle of 60 degrees. the absolute sky brightness is monitored when entering the umbra period and exiting it. any measurable difference signal can be attributed to sun strayligth. in order to calibrate the signal difference absolutely a measurement on a celestial primary standard is performed on the same revolution. at 170 micron this is the star hr6705 (gamma dra). |
| Instrument | PHT22 |
| Temporal Coverage | 1997-09-07T07:20:30Z/1997-09-07T10:39:30Z |
| Version | 1.0 |
| Mission Description | The Infrared Space Observatory (ISO) was the worlds first true orbiting infrared observatory. Equipped with four highly-sophisticated and versatile scientific instruments, it was launched by Ariane in November 1995 and provided astronomers world-wide with a facility of unprecedented sensitivity and capabilities for a detailed exploration of the Universe at infrared wavelengths. |
| Creator Contact | https://support.cosmos.esa.int/iso/ |
| Date Published | 2026-03-02T00:26:41Z |
| Last Update | 2026-07-09 |
| Keywords | Infrared Space Observatory data, ESA ISO mission dataset, ISO infrared observations, mid-infrared astronomy data, far-infrared spectroscopy dataset, ISOCAM imaging data, ISOPHOT photometry data, SWS short wavelength spectrometer data, LWS long wavelength spectrometer data, infrared spectral line observations, infrared imaging survey data, dust emission infrared observations, star formation infrared dataset, interstellar medium spectroscopy data, polycyclic aromatic hydrocarbons PAH features data, active galactic nuclei infrared observations, circumstellar envelope infrared data, planetary nebula infrared spectroscopy, extragalactic infrared survey data, calibrated ISO data products, FITS files infrared astronomy, spectral energy distribution infrared data, continuum photometry dataset, infrared spectral cubes, flux-calibrated infrared maps, ESA ISO Data Archive, legacy infrared space mission dataset |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Ulrich Klaas, 2026, 'PHT SUn straylight assesment C200 celestial standard measurement', 1.0, European Space Agency, https://doi.org/10.5270/esa-hfv4arr |
| Rights | Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license. |