# ISS crossing the moon tonght

From: Tom Wagner (sciteach@mchsi.com)
Date: Wed Apr 17 2002 - 19:35:06 EDT

• Next message: Matson, Robert: "RE: ISS crossing the moon tonght"

```I am posting this message to two groups. It is lengthy but I think that
someone in both groups may get something out of it.

The subject I discuss here is where to be to see a transit of the moon by
the International Space Station tonight. I also explain how I made the
determination.

First, using Heavens-Above at http://www.heavens-above.com I checked to see
where tonight's ground path of the ISS would be. [That gave me an idea as to
where to begin.] Then also using Heavens-Above I determined (with much trial
and error) that the path that the ISS will take across the US tonight is
about 300 miles SW of another path, one along which observers will be able
to see the station transit the moon. After finding 4 locations I plugged
their coordinates into MapBlast.com and printed off 4 maps of the US showing
the sites as a + sign on each one.

I held one of the maps against a sunlit window, and lined up map 2 then 3
then 4 under map 1. I marked the location of the + signs on maps 2 - 4 on
map one. In so doing I discovered that all 4 + signs were aligned very
nicely. I presume that from now on I may make just two determinations
separated by quite a ways and draw a line between them. If anybody knows
that will not work, please let me know. :~)

Below I describe the locations that I determined will see a lunar transit.
If you think you are near the line between the places that I describe, Go to
Heavens-Above at http://www.heavens-above.com
and see how close the transit will be for you (and when).

The places that I discovered will see this event are

(1) Straight East of Cheyenne, Wyoming 15 miles on HY 30: exact coordinates
= 41.1400N, 104.6000W

(2) Straight East of Dodge City Kansas 37 miles on HWY 183, exact
coordinates = 37.7530°N, 99.3500°
W

(3) 33 miles ESE of McAlester, Oklahoma near the junction of HWYs 1, 2 and
43, exact coordinates = 34.7460N, 95.2500W

(4) North Central Louisiana, NNW of Ruston about 22 miles. To be exact about
2 miles NNE of the junction of HWY 2 and 518 exact coordinates = 32.8150N,
92.8560W.

This will be an especially good time to see the ISS because the shuttle
should be relatively close to it. At this time, for my location, the ISS is
supposed to rise at 9:17:14 PM local time while the shuttle is supposed to
come up 1 minute and 5 seconds later.

If anybody knows of a program that charts ground tracks on a map that shows
state lines or better yet, cities, please let me know! Thanks.

Clear skies,

Iowa Tom
USA
.....

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