Flight data repet in map

how can tell the value of the gets of method SearchBirdseyeInFlight
in method getUpdateType()
i received only “A” or “P” and the problem is some flights appears in the same place (in the airport)

P—getUpdateType()
53getAltitude() 1
A
55 479
A
53 187
P
57 456
P
59 459
P
58 460
P
56 461
P
54 458
P

“P” implies that it is a projected position and may be inaccurate, particularly in areas where we do not have complete ATC coverage.

“A” is an ADS-B position, which will indicate that it is a known position that should be accurate.