Bop is brown. Bop is round. Bop is the sound that was heard all around...when the scientist male who gave its name, prior suggested something very lame.

Bop orbits Jool in an unusual but stable orbit, provided we don't use n-body physics. When subjected to real world physics, Bop is ejected from its orbit, left to wander interplanetary space alone. For users of the mod Principia, Bop reverses direction and orbits retrograde.

Rational Resources Classification:

Ocean	Surface	Atmosphere	Exosphere
None	Ice-Water	None	None

From the PDF included in the download:

Bulk Params		Orbital and Rotational Params
Classification	Moon (Jool)	Semi-major Axis	582,970 km
Radius	190 km sea level, 190.8 km mean	Periapsis	445,972 km
Mass	2.65220×1020 kg	Apoapsis	719,968 km
Gravitational Parameter	1.77010×1010 m3/s2	Orbit eccentricity	0.235
Mean density	9,120 kg/m3	Orbit inclination	15°
Surface gravity	0.05 g ASL	Longitude of ascending node	10°
Escape velocity	432 m/s	Argument of periapsis	25°
Bond Albedo	0.35	Sidereal orbit period	45.789 days
Solar irradiance	53.2 W/m2	Synodic period	46.300 days
Black-body temperature	111 K	Mean orbital velocity	1,852 m/s
		Sidereal rotation period	45.789 days
		Solar day	46.300 days
		Synchronous orbit altitude	N/A
		Sphere of influence	5,533 km