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Ursa Astronomical Association
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Ursa Astronomical Association

COSMO-SkyMed 1 - 28.2.2016 at 19.35 Ii Observation number 49211

Visibility III / V

I photographed the starry sky on Sunday, February 28, 2016, and after transferring the images to a computer, I noticed a satellite footprint in one image, which brightens considerably for a moment. The picture is taken roughly straight up. Exposure time 10 s, aperture 2, focal length 24mm and ISO 1600. What causes such momentary brightness in the satellite or its orbit?

Additional information
  • Observation target
    • Satellite
  • Name of the observation target
    • COSMO-SkyMed 1
    • Keskitaso
Comments: 2 pcs
Matias Takala - 29.2.2016 at 16.21 Report this

COSMO-SkyMed-sarjan satelliittien pääinstrumentti on synteettisen apertuurin tutka eli SAR, jonka antennit ovat tyypillisesti suuria paneeleja. Kun satelliitin asento ja sijainti radalla ovat sopivia, Auringon valo voi heijastua paneeleista kohti havaitsijaa.

Leo Wikholm - 5.3.2016 at 14.28 Report this

Hieno satelliittikuva! Skymed-satelliitit ovat tunnetusti kirkkaita yllättäjiä. Ne voivat kirkastua helposti miinusmagnitudien puolelle vaikka kirkkausennusteet osoittaisivatkin toista.

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