COSMOS 1400, Inari, Ivalo

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.

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Esko Lyytinen - 18.9.2014 at 21.18

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

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

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