Perfection?
We know from too many grievous example's that navigation waste can be considered as hazardous waste; but just what is 'precise navigation?' NASA has provided a good clue in the form of an example.
A trip from Earth to Mars
Distances Calculator tells us:
The time taken to travel the average distance of 140 million miles from Earth to Mars would be about 8.4 months (235.2 days) each way.
- If you could walk from Earth to Mars at a brisk rate of 4mph would take about 4000 years!
- If you had a car and were abiding by the highway speed limit of 70mph it would take 228 years. [Can you tell me how long it would take in a sailboat traveling at 7 knots?]
- If you had a 747 Jet Plane the time comes down a whole bunch at just around 32 years!
At 11:50:00 UTC on 30 July 2020, the Mars Rover mission “Mars 2020” launched from Earth aboard an Atlas V rocket. At 20:55 UTC on 18 February 2021, roughly six and half months later, touchdown on Mars was confirmed; the EDL navigation system came to within 16 feet of its landing target.
Watch the landing:
That’s pretty close to perfection!
Nice job NASA
/fl