101_Helena | density | 2.0 (gramPerCubicCentimetres) 101_Helena | escapeVelocity | 0.0348 (kilometrePerSeconds) 101_Helena | apoapsis | 441092000.0 (kilometres)
101 Helena has a density of 2.0 gm per cu cm, an escape velocity of 0.0348 km per sec and an apoapsis of 441092000.0 kms.