In summary, the conclusions arrived at by the inv~:sti~atol'S in
this case seem to be adequately supported by the lneteorological data
available.
111e sightin,.; reported for 12 October 1967, 0025 LST, S(\crr.s to
be a classic exu!ple of the description of a scintillating, wandering
star image seen through a strong inversion layer. Note particularly
the estimated ratio of vertical and horizontal movel'lCnts. Two very
bdght stars "!Quld have been close to the hor! zon at th is time:
Altair, magnitude 0.9, would have ~een at L77° azimuth and about 4°
elevation angle; Vega, magnitude 0.1, would have been at about 313 0
azimuth and about ~2° ele'.ation angle. Of the two, Altair scem~
the more likely target hecause of the smaller elevation angle; the
observers gave no estimate of either a~imuth or elevation angle.
~umm~ry of H('sul ts .
!I. sunml~ry of the resuJ ts of this investigat ion j S Riven in
Table 1.
'111C rcade~' Sh0UlJ note that the assi;;l1mcl,t of casc'.; into the
prob:1ble AP cause category could have been made on the basi s of the
observat~Lonal testimony alone. 'l11tlt is to say. ther~ was no ~ase
where the mete"JTnIogical (lata avai lable tended to ne!!,a~c the anomalous
pl'opagat. ion hypothesi5, thercb)' caus) ng that C,ISC to be (lssi gneu
to some other category. Therefore, G review of the Illl'tcorological data
availab Ie for the 19 pr~lbab Ie-A:' cases is i 11 oroel'.
(1) I~very one of t/ 1 (; 1~) caSl'S is associalcu wi th clear or near·
ly clear wathn,at is to ~a)i. t.hcrc: wa~ no case
where the metc'Jrrdogical \1ata avai lable tended to Ile)!.a t e the anomalous
propagation hypothesis, thereb:' causing that C,lse to he ,lsslgned
to some other category. Therefore, c review of the 1l1t·te(lrological data
avai lable for the 19 pr"bable-A::' cases is in orllel".
(1) Everyone of till" IP eHSt'S i~ associated with clear OJ' nCilr-
ly clear wC'atht'r. 111 15 ('(lSI'S ,,Icather is \lcscrihpd ;IS "cl(>ar and
visi.hility unli.mited" {CAVU),in many of these Itl~xceptiolla\ visibility"
is noted; ill four ca~H3~; the ,~c;lthcr is "p'nl'rally clear," with SOniC'
s.:attcrl"ll cloud;;, or a "h,gil, thin broken" condition (\I~\lal1y l1Jefllling
drriforllJ douds,. Sud, \~l'nthel' is inciicflt;ve of stable atlJlospheric
l"ondjtion~ that lire favorabl(, f r the f()l'IlH1tic·11 or Jilycrnl, strati,fied
26]