Cartan #0:
split: 0; compact: 4; complex: 0
canonical twisted involution: e
twisted involution orbit size: 1; fiber size: 16; strong inv: 16
imaginary root system: C4
real root system is empty
complex factor is empty
real form #3: [0,1,2,3,4,5,6,7] (8)
real form #2: [8,10,13] (3)
real form #1: [9,11,12,14] (4)
real form #0: [15] (1)


Cartan #1:
split: 0; compact: 2; complex: 1
canonical twisted involution: 2,3,4,3,2,1,2,3,4,3,2
twisted involution orbit size: 12; fiber size: 4; strong inv: 48
imaginary root system: A1.C2
real root system: A1
complex factor is empty
real form #3: [0,2] (2)
real form #2: [1] (1)
real form #1: [3] (1)


Cartan #2:
split: 0; compact: 2; complex: 1
canonical twisted involution: 1,2,3,4,3,2,1
twisted involution orbit size: 4; fiber size: 4; strong inv: 16
imaginary root system: C3
real root system: A1
complex factor is empty
real form #3: [0,1,2,3] (4)


Cartan #3:
split: 1; compact: 1; complex: 1
canonical twisted involution: 2,3,4,3,2,1,2,3,4,3,2,1
twisted involution orbit size: 6; fiber size: 2; strong inv: 12
imaginary root system: C2
real root system: C2
complex factor is empty
real form #3: [0,1] (2)


Cartan #4:
split: 1; compact: 1; complex: 1
canonical twisted involution: 4,3,4,2,3,4,1,2,3,4
twisted involution orbit size: 12; fiber size: 2; strong inv: 24
imaginary root system: A1.A1
real root system: A1.A1
complex factor: A1
real form #3: [0] (1)
real form #2: [1] (1)


Cartan #5:
split: 0; compact: 0; complex: 2
canonical twisted involution: 3,4,3,2,3,4,3,1,2,3,4,3,2,1
twisted involution orbit size: 24; fiber size: 1; strong inv: 24
imaginary root system: A1.A1
real root system: A1.A1
complex factor is empty
real form #3: [0] (1)


Cartan #6:
split: 2; compact: 0; complex: 1
canonical twisted involution: 4,3,4,2,3,4,3,2,1,2,3,4,3,2,1
twisted involution orbit size: 12; fiber size: 1; strong inv: 12
imaginary root system: A1
real root system: C2.A1
complex factor is empty
real form #3: [0] (1)


Cartan #7:
split: 2; compact: 0; complex: 1
canonical twisted involution: 3,4,3,2,3,4,3,2,1,2,3,4,3,2,1
twisted involution orbit size: 4; fiber size: 1; strong inv: 4
imaginary root system: A1
real root system: C3
complex factor is empty
real form #3: [0] (1)


Cartan #8:
split: 4; compact: 0; complex: 0
canonical twisted involution: 4,3,4,3,2,3,4,3,2,1,2,3,4,3,2,1
twisted involution orbit size: 1; fiber size: 1; strong inv: 1
imaginary root system is empty
real root system: C4
complex factor is empty
real form #3: [0] (1)