22R=22° rengas, SA=sivuaurinko, 22SK=22° sivuavat kaaret, AP=auringonpilari, KP=kuunpilari, ZYK=zeniitinympäristön kaari, 46R=46° rengas, HR=horisonttirengas, 46SK=46° sivuavat kaaret, 46ySK=46° ylläsivuava kaari, 46aSK=46° allasivuava kaari, PK=Parryn kaari, yKoPK=yläkovera Parryn kaari, ykuPK=yläkupera Parryn kaari, akoPK=alakovera Parryn kaari, 120SA=120° sivuaurinko, 23yPH=23° ylempi parheelia, WVAK=Wegenerin vasta-aurinkokaaret, aA=ala-aurinko, LK=Lowitzin kaaret, 9R=9° rengas, 23R=23° rengas, 9SK=9° sivuavat kaaret, VA=vasta-aurinko, 18PH=18° parheelia, 24aPH=24° alempi parheelia, 20R=20° rengas, 24R=24° rengas, 18R=18° rengas, 35R=35° rengas, E=elliptinen halo, aSA=alasivuaurinko, 24ySK=24° ylläsivuava kaari, 9aPH=9° alempi parheelia

From 1987 to 1999 I have also reported some 50 observations on the Lowitz arcs. However during the years the definition of the Lowitz arcs became more exact, and it seems that in most cases there were no Lowitz arcs in the sky. I may have a few true observations (with photographs) on the arcs as well. Only these observations are included in the list above.

I have also reidentified seven early 46° halos as 46° supralateral arcs. The reason for the reidentification is that the 22° halo was much weaker than the 22° upper tangent arc in the displays. The 46° supralateral (and infralateral) arcs are related to the 22° tangent arcs, just as the 46° halo is related to the 22° halo.