Estimated height by brightness of artificial satellites orbiting the Earth.

Estimated height by brightness of artificial satellites orbiting the Earth.

Context in source publication

Context 1
... the total of 26.816 artificial satellite observations, the approximate mean height was 890 km (892) and the mean brightness was slightly higher than the naked-eye observation limit (6.68 ≈ 6.7). The satellites coincide with the escape zone of H+ and He from the terrestrial exosphere (800 -900 km) and the location of some telescopes (Noto, 1998) [19] (Table 1). ...

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