Scientific Advisory Panel on Unidentified Flying Objects, Report, 1952-1953

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1()00 man.-hours ot professional and sub-proteasional time 1n the
preparation of graph pl.Qts ot 1ndividu&l frames ot the tUm, ahaw­
i!Jg apparent and relative motion ot objects and variation 1n their
light !ntenait;r. It was the opiDion ot the P.I.L. representatives
that the o~jects sighted vere not birds, balloons or aircraft•
vere •~ .retlections ~e there was no bl.1nking vhUe ):&asing
through &J
0
• ot &rd' and w.-e, ther~tore, 11MU'~lum1.nous". Plots ot
motion om variation 1n light intensity ot the objects vare die­
p~. While the Panel Members were impressed b;v th~ evident
en~ imustry a!!d extent of etf~ ot the P.I.L• .team_ they
could not accept the conolusions reached. · Same or the reuona tor
thia vere as tollws1
&o A aami-apharical obj~t can reed1'q troduce a rof'leotion
ot sunlight without "blinldng" through t,oo of arc travel.
bo Although no data was available on the "albedo" ot birds er
po~lene halJoona 1n bright aunlight, the apParent
motions, ai,;e■ and 'brlghtnesaes ot the objects ware
considered strong~ to suggest birds, psrticularq attar
the Panel viewed a abort film showing high ref'l.ectiut7
0, seagulls 1n bright 8UDlight.
o. P.I.L. description of the objects sighted as •c!rcular•
bluish-white" in color would be expectad 1n cases of
apecular reflections ot sunl 1ght trcm convez surtaoes vhere
the lrilliance of the retleotlon vould obscsure other portions
of the object.