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I think the difference is that a star tracker does not send or store a picture, it only analyzes the image data so does not fall into the category of "imaging" .<br>
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Howie AB2S<br>
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Another 1/3 of the $50sat team<br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Ground-Station <ground-station-bounces@lists.openresearch.institute> on behalf of Ground-Station <ground-station@lists.openresearch.institute><br>
<b>Sent:</b> Sunday, July 8, 2018 7:39:27 AM<br>
<b>To:</b> Bruce Perens<br>
<b>Cc:</b> ground-station@lists.openresearch.institute<br>
<b>Subject:</b> Re: [Ground-station] star tracker ?</font>
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<div dir="auto">I am not a lawyer and I only quickly scanned the cited documents, so my comments should be taken with a grain of salt.
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<div dir="auto">It looks to me that these documents talk about space sensing in such generic terms that they could be restricting almost anything, like even a simple temperature sensor or a solar panel illumination monitor. But reading the details indicates
to me that the concern is with images of the earth. A star tracker collects images of stars (and probably other celestial objects such as planets and galaxies). So it seems to me to be unrelated to the technology being regulated. Granted, a telescope with
a camera intended to point at stars could accidentally point at earth at some point, but if the software determines that there are no stars visible in the camera's field of view, it could prohibit the download of the data and that should be sufficient to avoid
non-compliance with these regulations. Maybe that's too simplistic a view, but that's my view.</div>
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<div class="gmail_extra"><br>
<div class="gmail_quote">On Jul 8, 2018 01:14, "Ground-Station" <ground-station@lists.openresearch.institute> wrote:<br type="attribution">
<blockquote class="quote" style="margin:0 0 0 .8ex; border-left:1px #ccc solid; padding-left:1ex">
<div dir="ltr">James,
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<div>NOAA requires a license for terrestrial imaging. Title 51 of the US code at <a href="https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.law.cornell.edu%2Fuscode%2Ftext%2F51&data=02%7C01%7C%7Cb41c25d08f284861b53b08d5e4c7b42e%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636666468722158158&sdata=xiadP9kTFTigwIRDy6PxzPT4TZng7ZxKlQoNzyVHChA%3D&reserved=0" originalsrc="https://www.law.cornell.edu/uscode/text/51" shash="T+irKS8QeOT7Chcb0dwSLsnrYaweyamuUEs69KqHrjbyZcK8kVnZX+RGjrha0Yk7wQRYmhMHoj3p4rqf/6LK+9aqIRR3kTbTHa0xr/BnkvtT2b5thB6U8Jnwutd+HBc7jNVkkSkoYFZ1P7kIE0Dz8uRC8Chu/htMcwSBidHgyew=" target="_blank" rel="noreferrer">
https://www.law.cornell.edu/uscode/text/51</a></div>
<div>and Presidential Decision Directive NSC-23 at <a href="https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fclinton.presidentiallibraries.us%2Fitems%2Fshow%2F12747&data=02%7C01%7C%7Cb41c25d08f284861b53b08d5e4c7b42e%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636666468722158158&sdata=%2FbVctvxMZOTK8dDdLapEIv6J43zTBciXQIMHKeuZQFg%3D&reserved=0" originalsrc="https://clinton.presidentiallibraries.us/items/show/12747" shash="jXHECjt2r3Sed8xdFnzHMeS4BTWBQGk/bIAHopYLEVl6ic5tnmy812WMiEf1CgozXo5yxQBaXQLfdwXRktOf8atWAb52Z7ShB74qUcjC5s3V0H3VSopVSG17408h0ZZ9Hvj8a+gHm6X9AURmYy34fdsfh+agniMXseSvcY1xKlQ=" target="_blank" rel="noreferrer">https://clinton.presidentiallibraries.us/items/show/12747</a><br>
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<div>both include restrictions upon imaging.</div>
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<div>They are concerned by things like high-resolution maps of Israel, which presumably would be used to bomb them.</div>
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<div>I haven't read over the laws yet, but we'd have to understand them as part of any remote imaging mission. Whether or not a star finder could be restricted is dependent on both technical details and the law, yet to be studied.</div>
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<div> Thanks</div>
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<div> Bruce</div>
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<div class="gmail_quote">On Sat, Jul 7, 2018 at 3:10 PM, Ground-Station <span dir="ltr">
<<a href="mailto:ground-station@lists.openresearch.institute" target="_blank" rel="noreferrer">ground-station@lists.openresearch.institute</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex; border-left:1px #ccc solid; padding-left:1ex">
<div dir="auto">I recently had a discussion with a couple of satellite builders (one of which was on the 50dollarsat project) and I asked what were the chances of building a 1 or 2u
<div dir="auto">cubesat that had a small telescope with camera on it.</div>
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<div dir="auto">One of the things that was brought up about that was that there is a fcc or DoD</div>
<div dir="auto">rule that prohibited cameras pointing away from the earth. I was told that it was out</div>
<div dir="auto">of concern that the U.S. didn't want anyone taking pictures of some super secret</div>
<div dir="auto">satellite either by accident or on purpose.</div>
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<div dir="auto">I haven't had the time to look it up and hadn't even thought of this until I read this thread.</div>
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<div dir="auto">Is this true or not?</div>
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<div dir="auto">James W8ISS </div>
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<div class="signature-text">-- <br>
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<div dir="ltr">Bruce Perens K6BP - CEO, Legal Engineering<br>
Standards committee chair, license review committee member, co-founder, Open Source Initiative
<div>President, Open Research Institute; Board Member, Fashion Freedom Initiative.<br>
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