https://community.microfocus.com/t5/ArcSight-Connectors/ArcSight-Common-Event-Format-CEF-Implementation-Standard/ta-p/1645557
reviewing the above there seems to be additional fields that needs to be added to the mappings.

I also noticed a couple of incorrect mappings.
for example
slat =>sourceLongitude
it should be
slat => sourceGeoLatitude