<div dir="ltr"><div>FYI:</div><div>
<div>Norman, Sebastien, and I wrote a paper on the use of units in astronomy and astrophysics, 
as the International Astronomical Union’s (<a href="https://iau.org/" target="_blank">IAU</a>) contribution to the Task Group on Digital Representation of Units of Measure (<a href="https://codata.org/initiatives/task-groups/drum/" target="_blank">DRUM</a>) of the Committee on Data (<a href="https://codata.org/" target="_blank">CODATA</a>) of the International Science Council (<a href="https://council.science/" target="_blank">ISC</a>). <br></div><div><br></div><div>Its DOI is: 
10.5281/zenodo.5083151

</div><div>It is available from 
<a href="https://dx.doi.org/10.5281/zenodo.5083151" target="_blank">https://dx.doi.org/10.5281/zenodo.5083151</a></div><div><br></div><div>  - Arnold<br>

</div><div><div><div dir="ltr"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><br></div></div></div></div></div></div></div></div>

</div><div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><br><div dir="ltr" style="margin-left:0pt"><table style="border:medium none;border-collapse:collapse"><colgroup><col width="445"><col width="275"></colgroup><tbody><tr style="height:90pt"><td style="border-color:rgb(255,255,255);border-style:solid;border-width:1pt;vertical-align:top;padding:5pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:9.5pt;font-family:Arial;color:rgb(34,34,34);background-color:transparent;font-weight:700;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap">Arnold H Rots</span></p><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:9.5pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:700;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap">Research Associate</span></p><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt">SAO/HEAD</p><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:9.5pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:700;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap">Center for Astrophysics | Harvard &amp; Smithsonian</span></p><br><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:9.5pt;font-family:Arial;color:rgb(34,34,34);background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap"><span><span style="font-size:9.5pt;font-family:Arial;color:rgb(34,34,34);background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap">Email: <a href="mailto:arots@cfa.harvard.edu" target="_blank">arots@cfa.harvard.edu</a></span></span></span></p><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:9.5pt;font-family:Arial;color:rgb(34,34,34);background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap">Office: +1 617 496 7701 | Cell: +1 617 721 6756</span></p><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:9.5pt;font-family:Arial;color:rgb(34,34,34);background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap">60 Garden Street | MS 69 | Cambridge, MA 02138 | USA</span></p><br><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:9.5pt;font-family:Arial;color:rgb(34,34,34);background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap"><img src="https://lh6.googleusercontent.com/R45qZsZUYbnrNung3ANEy_aJBrli78_IZ48LOZIdYaUicFhNhvpo-9n2bBgUfY80wp7S__msk71xAU9J4jXAamyFuvvOfb2sCp8SmlPdRA4WGpw1Yfcbvjr2qCw0r4cLyVaFQ3NB" style="border:medium none" width="350" height="2"></span></p></td></tr><tr style="height:27pt"><td style="border-color:rgb(255,255,255);border-style:solid;border-width:1pt;vertical-align:top;padding:5pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap"><img src="https://lh6.googleusercontent.com/Ibk6DE2j3nS5F7iU5K7tvYlZhOBC_IK9gXntzK57EkBWwJtegzT-mSi6UgJH-wearGMcUE-4R1pOAdNtrzexzdvzwQGlfSuLItPiXhxUUNrenego55AGWwAX1W24xpcvHu1an55e" style="border:medium none" width="149" height="65"></span></p><br><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><a href="http://cfa.harvard.edu/" style="text-decoration:none" target="_blank"><span style="font-size:9.5pt;font-family:Arial;color:rgb(0,0,0);background-color:rgb(255,255,255);font-weight:400;font-style:normal;font-variant:normal;text-decoration:underline;vertical-align:baseline;white-space:pre-wrap">cfa.harvard.edu</span></a><span style="font-size:9.5pt;font-family:Arial;color:rgb(0,0,0);background-color:rgb(255,255,255);font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap"> | </span><a href="http://cfa.harvard.edu/facebook" style="text-decoration:none" target="_blank"><span style="font-size:9.5pt;font-family:Arial;color:rgb(0,0,0);background-color:rgb(255,255,255);font-weight:400;font-style:normal;font-variant:normal;text-decoration:underline;vertical-align:baseline;white-space:pre-wrap">Facebook</span></a><span style="font-siz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