<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">Hi,<div><br></div><div>declination should be calculated automatically based on the survey date.</div><div>Declination parameter is for manual correction.<br><br><div id="AppleMailSignature">\LB</div><div><br>2. 3. 2018 v 16:29, Martin KERN via Therion <<a href="mailto:therion@speleo.sk">therion@speleo.sk</a>>:<br><br></div><blockquote type="cite"><div><style>body{font-family:Helvetica,Arial;font-size:13px}</style><div id="bloop_customfont" style="font-family:Helvetica,Arial;font-size:13px;color:rgba(0,0,0,1.0);margin:0px;line-height:auto">
<p class="MsoNormal"><span lang="EN-GB">Quick
question concerning the magnetic declination.</span></p><p class="MsoNormal">How you indicate
it?</p>
<p class="MsoNormal"><span lang="EN-GB">Just by entering
the date or with the command <declination>?</span></p>
<p class="MsoNormal"><span lang="EN-GB">Because when
I just specify the date, the declination which is calculate is for the first January,
even if I specify another month in the centreline (e.g. 28.08.2017). Consequently,
centreline is slightly offset that if I enter the real declination for the date.</span></p>
<p class="MsoNormal"><span lang="EN-GB">I don’t
know if this shift is important for survey accuracy or if I can ignore it ?</span></p>
<p class="MsoNormal"><span lang="EN-GB"> </span></p>
<p class="MsoNormal"><span lang="EN-GB">Thanks and
sorry for all my questions.</span></p>
<p class="MsoNormal"><span lang="EN-GB">Martin K.</span></p>
</div><br><div id="bloop_sign_1520004480804385024" class="bloop_sign"></div>
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