Hypotheses

We have scored each of sixteen hypothesis on the following scale:

0 = very implausible
1 = somewhat implausible
2 = barely plausible
3 = somewhat plausible
4 = very plausible
5 = definite identification

• Sundogs
• Subsun
• 3^rd/4^th order rainbows
• Surface reflections & mirages
• Aircraft contrails
• Ship tracks
• Lenticular clouds
• Military exercises
• Lighter than Air (LTA) vehicles
• Windscreen reflections
• Earthquake lights (EQL)
• Earthquake clouds