BAAO — 2020 Astronomy & Astrophysics Challenge
Question 10
On 19th July 2020 the first Arab interplanetary mission was launched on its way to Mars, consisting of the Hope probe designed by the United Arab Emirates Space Agency. When it reaches Mars in February 2021 it will do a short burn at a distance of 49 400 km away from the surface to slow it down and put it into an elliptical capture orbit which will bring it as close as only 1000 km above the planet. Given the mass of Mars is 6.39 × 10²³ kg and its radius is 3390 km, what will be the period of this orbit?
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Source
Source: British Astronomy and Astrophysics Olympiad (BAAO), Astronomy & Astrophysics Challenge 2020. Question text, answer-choice text, and answer were transcribed from the official BAAO paper and solutions PDFs; the explanation and metadata are original.