Complete loss on what these fields are in the new combat log

Time stamp 7/29/2025 22:49:09.618-10
Event Type SPELL_DAMAGE
Source GUID Vehicle-0-3884-2769-8562-231075-000009A381
Source Name Chrome King Gallywix
Source Flag 0xa48
Raid Marker 0x80000000
Target GUID Player-11-0E96012E
Target Name REDACTED-Tichondrius-US
Target Flags 0x514
Raid Marker Target 0x80000000
Spell ID 466752
Spell Name Venting Heat
Spell Type 0x4
Target Resource GUID Player-11-0E96012E
Owner GUID 0000000000000000
Current Health 10903598
Max Health 11886512
atk power 28857
spell power 104030
armor 90362
Column1 997
Column2 300
absorb 0
power type 11
target power 26
target max power 125
Column 3 0
x location -491.04
y location -691.87
map 2409
rotation 3.8887
target level 684
final damage 191644
base damage 240071
overkill damage -1
school 4
resisted 0
blocked 0
absorbed 0
critical nil
glancing nil
crushing nil
type AOE

Anyone know what the three bolded fields represent in the advanced logs for “spell damage”? (Column 1,2,3)