Notation	Name	Description	Status
1	Balloon burst		stable
2	Balloon forced down by icing		stable
3	Leaking or floating balloon		stable
4	Weak or fading signal		stable
5	Battery failure		stable
6	Ground equipment failure		stable
7	Signal interference		stable
8	Radiosonde failure		stable
9	Excessive missing data frames		stable
11	Excessive missing temperature		stable
12	Excessive missing pressure		stable
13	User terminated		stable
30	Other		stable
31	Missing value		stable