More use examples about aacgmv2 HOT 10 CLOSED

Sorry, excuse me. Using the AACGM module for altitude correction of orbits, satellites are input (geographic latitude, geographic longitude and altitude) and outputs (magnetic latitude, magnetic longitude, magnetic place). I want to know if the corresponding output altitude location is the default surface height or something else?

from aacgmv2.

It depends on the flags you're using. As stated in the docs, the returned height is either geocentric radial distance or height above the surface of the Earth (https://aacgmv2.readthedocs.io/en/latest/reference/aacgmv2.html). Can you give me a code example? For best formatting, be sure to flank the commands between three accent marks (`).

from aacgmv2.

For example: '''aacgmv2.wrapper.get_aacgm_coord_arr(glat, glon, height, dtime, method='TRACE')'''.  In this case, in_Lat, in_lon, height, and dtime, the four input values are the satellite's current latitude, longitude, altitude, and time.  The output result is' MLAT ',' MLON ',' MLT ', there is no height information in the result, but there is height information in the input data, I want to know which plane the output result is projected to, is it on the earth surface by default?

from aacgmv2.

from aacgmv2.

If "`height" refers to the output altitude, how can I determine the current position of the satellite only by( "glat" , "glon" )when I input it?In the same geographic longitude and latitude, but at different altitudes, the corresponding geomagnetic field lines are also different. How can we correct them？
So what I don't understand is that if the "height" here refers to the given height after output, isn't the input position information enough to track along the geomagnetic line? Rely only on latitude and longitude.

from aacgmv2.

from aacgmv2.

Is the function of AACGM similar to converting the geographic coordinate information of a point of the satellite into the AACGM coordinate information of the current position. The satellite coordinate information cannot be tracked along the geomagnetic line to a plane at a low altitude

from aacgmv2.

@hlmxlj2018 I don't really understand what you're asking. All AACGMV2 does is convert between geographic/geodetic and magnetic coordinates. If you know where your satellite is, then you can get its location in magnetic coordinates. If you don't know where it is (in latitude, longitude, and altitude), then AACGMV2 isn't going to help.

from aacgmv2.

After inputting the current geographic location (latitude, longitude and altitude) of the satellite into the program, the output result is actually only to convert the geographic coordinates into geomagnetic coordinates.
Is my current understanding correct?
I originally thought that the AACGM module could project the 840km satellite position along the magnetic field line to other heights, such as 110km

from aacgmv2.

That may be possible, but is not a use case I have encountered. It would require a careful reading of the papers to make sure you're going about it correctly. If possible, it would be a multi-step process along the lines of:

1. Find geomagnetic coordinates at current location
2. Extract geomagnetic elements that remain the same for tracing
3. Use those in the call at the desired altitude.

from aacgmv2.