Cartan #0:
split: 0; compact: 0; complex: 4
canonical twisted involution: e
twisted involution orbit size: 945; fiber size: 1; strong inv: 945
imaginary root system: A1.A1.A1.A1
real root system is empty
complex factor: A3
real form #0: [0] (1)


Cartan #1:
split: 2; compact: 0; complex: 3
canonical twisted involution: 1,2,3,4,5,6,7,8,7,6,5,4,3,2,1
twisted involution orbit size: 1260; fiber size: 1; strong inv: 1260
imaginary root system: A1.A1.A1
real root system: A2
complex factor: A2
real form #0: [0] (1)


Cartan #2:
split: 4; compact: 0; complex: 2
canonical twisted involution: 1,2,1,3,2,4,3,5,4,6,5,7,6,5,4,3,2,1,8,7,6,5,4,3,2,
    1
twisted involution orbit size: 378; fiber size: 1; strong inv: 378
imaginary root system: A1.A1
real root system: A4
complex factor: A1
real form #0: [0] (1)


Cartan #3:
split: 6; compact: 0; complex: 1
canonical twisted involution: 1,2,1,3,2,1,4,3,2,5,4,3,6,5,4,3,2,1,7,6,5,4,3,2,1,
    8,7,6,5,4,3,2,1
twisted involution orbit size: 36; fiber size: 1; strong inv: 36
imaginary root system: A1
real root system: A6
complex factor is empty
real form #0: [0] (1)


Cartan #4:
split: 8; compact: 0; complex: 0
canonical twisted involution: 1,2,1,3,2,1,4,3,2,1,5,4,3,2,1,6,5,4,3,2,1,7,6,5,4,
    3,2,1,8,7,6,5,4,3,2,1
twisted involution orbit size: 1; fiber size: 1; strong inv: 1
imaginary root system is empty
real root system: A8
complex factor is empty
real form #0: [0] (1)