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Question 5.5: Find the elapsed time between 4 October 1957 UT 19:26:24 and...

Find the elapsed time between 4 October 1957 UT 19:26:24 and the date of the previous example.

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Proceeding as in Example 5.4 we find that the Julian day number of the given event (the launch of the first man-made satellite, Sputnik I) is

J D_{1}=2  436  116.3100 \text { days }

The Julian day of the previous example is

J D_{2}=2  453  138.1149 \text { days }

Hence, the elapsed time is
ΔJD = 2 453 138.1149 − 2 436 116.3100 = 17 021.805 days (46 years , 220 days)

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