Nope, it's anecdotal.
I'm sure you simply missed this post a page and a half back but I'll give you a chance to answer it again:
On anecdotal ... you are using a generic presumed usage. I use one that accepts firsthand knowledge
or experience
or scientific investigation as not being anecdotal as in the following definition from Encarta:
Encarta® World English Dictionary © 1999,2000 Microsoft Corporation.
an·ec·dot·al [ànn?k d?t’l]
or an·ec·dot·ic [ànn?k d?tik] adjective
1. based on anecdotes or hearsay: consisting of or based on secondhand accounts rather than
firsthand knowledge or experience or scientific investigation.
I've also pointed out the value of quality anecdotal evidence in the pursuit of science ( medical case studies ), for which anecdotal evidence is the norm. So even if you reject the Enacarta definition, you can still find evidence for anecdotal evidence being used to further our knowledge and understanding, and contribute insight for progress where hard science is concerned.
For the radar return from the object the jet was chasing, the radar is what alerted the base to the presence of an unknown target. Jets were scrambled, but before the jets made visual confirmation, the object faded off the radar. This was an early radar system, so they didn't know if the UFO had faded up out of range, or gone "under the radar". So they started the search high, then moved down, ( this is logical as it allowed the pilots to either intercept or gain the high ground right away. If it was below, then they had the "upper advantage" ... which is how it turned out ... ).
As the search progressed to lower altitudes, one of the pilots spotted the object below the radar and took up pursuit by going into a dive. So there was a short period of time between the radar contact and visual confirmation.
Although a short gap between the radar contact and visual confirmation existed, the two actions are so closely connected, and the flight characteristics of the UFO spotted so similar to the initial radar returns, that it is
reasonable to assume that the UFO was the same object that was initially tracked on radar a few minites before.
NOTE: Consider the term "visual confirmation". Why do you hear that term used? Might I propose that it's because visual confirmation
verifies the radar? What does this imply about the data provided by radar compared to data provided directly by a pilot in visual range? Certainly we can see that it has
value ... moreso than the radar data alone.
j.r.