Another question about AlertStatus records

When I query for alerts, and I get an ObjectType of "Routing Neighbors", or for that matter, anything that is NOT "Interface" or "Node" (actually, I haven't seen an object type of Node, so not sure what it would/should be), how do I know which table to query if I want to get information about the device that fired/raised the alert?

In other words, how do I know which table to query in order to get more information about the 'ActiveObject' that's raised the alert?

Have seen these ObjectTypes as well as "Interface":
<ObjectType>Hardware Sensor</ObjectType>
<ObjectType>Routing Neighbors</ObjectType>
<ObjectType>Multicast routing</ObjectType>
<ObjectType>IPAM Networks</ObjectType>

Thanks,

Scott