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Ursa Astronomical Association
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00130 Helsinki

Ursa Astronomical Association

COSMOS 1400 - 14.9.2014 at 00.36 Inari, Ivalo Observation number 30363

Visibility Unclassified

Panu Lahtinen, Ursa (Etelä-Suomi)

As a result of Mikko Lönnberg's brilliant observation , he had to go through his own celestial camera images again, and this is where the return of the COSMOS 1400 satellite to the atmosphere was finally found. According to the timing data, the satellite was visible for 25.3 s. If the camera had not leaked in its housing during the summer, a slightly longer shore would have been visible.

I compiled some kind of restoration of the satellite's motion in the sky (5 fps) based on the timestamps of the brightest pixels in the sky camera images [ link ]. The speed of movement is fairly accurate, but for imaging reasons the satellite does not appear as a "sphere" as it would in real video or visually.

Additional information
  • Observation target
    • Satellite
  • Name of the observation target
    • COSMOS 1400
    • Luokittelematon
Technical information

Samsung SCB-2000, Fujinon YV2.2x1.4A-SA2L 1.3-3.1 mm, f / 1.4. Two 60 st max stacks connected to the observation image.

Comments: 2 pcs
Esko Lyytinen - 18.9.2014 at 21.18 Report this

Panun datoista ja kuvien manuaalisista mittauksista, aiempaa kamerakalibrointia täsmentäen, määritin lennon korkeuden ja suunnan olettamalla nopeudeksi maan pintaan nähden 7.8 km/s. Sen mukaan lentää havainnon aikana kokeudella 94 -> 93 km suunnan ollessa noin 0.4 astetta alaspäin.


Janne Kari - 18.9.2014 at 22.32 Report this

Ihan loistokasta että tämä on useamman voimin rapsattu! Hienoa settiä.

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