Line of sight, not ground location. While this is enough to project a TD box, there is no inforamation of ground elevation at that LOS/ground intersection point, so there is no value to complete the trig value for range.
When the TGP is later available after HARM, then that point could be designated and the LRF could be used to determine range.
Only PB modes provides range without assistance from a non-HARM sensor.
The Hornet portion of the OB is already committed, the TD box will come in a later OB.