Some New Horizons calculations

Everyone knows that NASA’s New Horizons spacecraft will make its closest approach to Pluto on 14 July 2015 at 11:50 UTC. But I wanted to know when I should start looking for the first images from that moment.

Distance from Earth to Pluto

33.71 AU = (1.49597870700 x 10^11 m) x 33.71

5.042944221297 x 10^9 km

Speed of Light

2.99792458 x 10^8 m/s =

1.0792528488 x 10^9 km/h

One-way signal from Pluto to Earth

5.042944221297/1.0792528488 =

4.672625351 hours (4 hr 40 m)

New Horizons closest approach

14 July 2015 11:49:59 UTC (7:50 EDT)

(we will be on Daylight Time in the summer, making the difference between UT and ET 4 hours)

Photo from closest approach 16:30 UTC (2:00 PM EDT)

P.S. I really don’t like NASA’s standard web page template at all — the fonts are way too tiny for comfort and the narrow main window frame is oh so 90’s. Someone needs to introduce their web team to HTML5/CSS3 and Bootstrap, and soon.

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About phil

My name is Phil Lembo. In my day job I’m an enterprise IT architect for a leading distribution and services company. The rest of my time I try to maintain a semi-normal family life in the suburbs of Raleigh, NC. E-mail me at philipATlembobrothersDOTcom. The opinions expressed here are entirely my own and not those of my employers, past, present or future (except where I quote others, who will need to accept responsibility for their own rants).