Difference: HowToConvertIPPCoordinatesToLocalTim (r2 vs. r1)


Hi guys!

I am just starting to use GPSTk for TEC calculations and I came across a question for which I do not have an answer and which I would like to let at your consideration:

The line of sight determination of TEC for a satellite-receiver pair leads directly to values of TEC that are primarily associated with the coordinates of the Ionospheric Pierce Points.

How are these coordinates (e.g.,longitude) converted to local time so as to allow a plot of TEC versus local time? Is there any particular assumption in doing this conversion or it is an exact conversion? My thanks,

Manuel Silva

-- ManuelSilva - 25 Oct 2010


ALERT! If you answer a question - or have a question you asked answered by someone - please remember to edit the page and set the status to answered. The status is in a drop-down list below the edit box.

No such template def TMPL:DEF{PROMPT:supportquery} Dear Manuel, Conversion from longitude to local time is straight forward, and is given by LT = LONG / (15 deg/hr) + UT The important thing to remember is that this is local time, not standard time (i.e. the time in your time zone).

-- TrevorGarner - 25 Oct 2010 No such template def TMPL:DEF{PROMPT:supportquery}

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