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k2=0.589±0.150k_{2} = 0.589 \pm 0.150

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Cassini flew six flybys of Titan between 2006 and 2011 with a gravity-quality radio link, and Iess and colleagues recovered k2k_{2} = 0.589 ±\pm 0.150 , with an alternative solution of 0.637 ±\pm 0.224 [ 14 ] . Both are far too large for a rigid ice shell over rock and are consistent with a global ocean at depth [ 14 ] . The measurement did not see the ocean; it measured how much the whole moon flexes each orbit, and only a decoupled shell flexes that much.

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k2=0.589±0.150k_{2} = 0.589 \pm 0.150

Equation 14 · Planetary Science

How We Know What Is Inside a Planet

This equation states an equality: the expressions on both sides have the same value under the article’s assumptions.

Cassini flew six flybys of Titan between 2006 and 2011 with a gravity-quality radio link, and Iess and colleagues recovered k2k_{2} = 0.589 ±\pm 0.150 , with an alternative solution of 0.637 ±\pm 0.224 [ 14 ] . Both are far too large for a rigid ice shell over rock and are consistent with a global ocean at depth [ 14 ] . The measurement did not see the ocean; it measured how much the whole moon flexes each orbit, and only a decoupled shell flexes that much.

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