X3063 っ is Unicode character number 12387, Hiragana, SmallTsu.
っ uses 3 bytes: %e3%81%a3 ; 227 129 163 in the decimal representation.
X3063 っ is easy to confuse with character
X3064 つ, that has similar shape, but looks a little bit bigger.
For this confusion, neither っ nor つ is allowed in Tarja.
Un Japanese, っ is interpreted as modifier, that changes pronunciation of the next character,
if followed with appropriate Hiragana character.
At traslation from Hiragana to Romanji, or from Japanese to Tarja,
the SmallTsu is converted to the next ascii character;
usually it is consonants letter.
At the translation from Japanese to Tarja,
っか does kka
っく does kku
っけ does kke
っき does kki
っこ does kko
X3063 っ ,
X3064 つ ,