RTKlib post processing _events.pos file vs .pos file

Hello everyone,

I’m not sure if this is the right forum, but I thought some of you might know this. I’m really new to RTKlib and there is a lot of stuff that I still don’t understand.
When I post process my data with regular RTKlib the .pos file coordinates does not align with the _events.pos file coordinates, and I don’t understand why. Is the _events.pos file not corrected with the data from the base station, or am I just doing something completely wrong?
This is the .pos file coordinates (blue route) and the events (photos taken) as the yellow stars:


As you can see the some of the events are just scattered around the route while basically all the coordinates in the _events.pos file are Q=1.
This is the result from the post processing:

I’ve read that RTKlib might not be the most reliable post processing tool, should we consider using another program to get better results? This is all for a project in University so we can’t really pay for a post processing tool though. When I use emlid i get somewhat better results but the events are still scattered around, I guess maybe it’s because we don’t have the emlid hardware?
These are the results from rtkpost and plot + the settings:









I would really appreciate if someone could explain all this to me.

Thanks!

Hi @melanpelan98,

Could you please tell me more about your setup? Does your rover allow recording the events? What version of RTKLIB do you use? There are specific versions of RTKLIB that will give you the _events.pos file.

I suggest using Emlid Studio, as we support this event processing feature, and try changing your processing settings. I can see that the data is quite bad, which is probably why you get the event’s position scattered around.

Emlid Studio is compatible with any receivers’ logs, as long as they are in RINEX or UBX format.

Please refer to this guide to help you assess the quality of your data logs.

Also, feel free to share the raw data with me; I’ll help you analyze and improve the solution. You can email it to me at support@emlid.com. Thanks!

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