None of the data on the map is 'real time'.
Red triangle = MODIS satellite hotspot
Orange square = VIIRS satellite hotspot
All MODIS and VIIRS satellite hotspots on the map were detected within the last 48 hours. There are a total of 4 to 6 satellite passes per 24 hours. After a satellite pass it takes about 3 hours for NASA to process the data before it can appear on any map. When you see satellite hotspot data on a map that data is already 3 to 9 hours old.
Satellite hotspot locations you see on the map are only approximate. A MODIS hotspot represents a box 1,000 meters (~0.62 miles) by 1,000 meters. One or more actual fire lcoations could be anywhere inside that box. A VIIRS hotspot represents a box 375 meters (~0.23 miles) by 375 meters.
A satellite hotspot can be a 'false positive' when (1) the fire is near the edge of the 'strip' of land that the satellite sees and (2) there is a lot of heavy smoke with hot embers. Likewise, an area can burn and never show up on the map as a hotspot. This can happen when a grassy area burns just after a satellite pass and then cools before the next satellite pass.
Here is the NASA's FAQ for the satellite hotspot data.
Here is a NASA webpage that explains why sometimes there are false positive hotspots.