Divining the Auguries (Navis Primer)

By wolph42, in Rogue Trader Rules Questions

Hi,

In Navis Primer page 28 it states:

The GM tells the Navigator the stability of the route, the clarity
of the Astronomican, and the approximate duration from Table
2–2: GM’s Calculation of Duration (see page 27).
If the Navigator fails this Test, the GM secretly rolls
on Table 2–3: Navigator’s Estimate of Duration and
provides the Navigator with one of the following answers. A
Navigator can try to divine the auguries at a later date to get
a more favourable reading, but cannot do so for another 1d5
days as he must re-prepare for the ritual.

lets say the gm calculates the route to take 5 days in the warp. And the Navigator fails.

Rolling a '2' on table 2-3 it states:

2
1/2 x GM’s Calculation of Duration (including modifications from
Table 2–1: Route Stability and Risks)
The Navigator is unsure of the clarity of the
Astronomican for this route.

Do I interpret this correctly by the following:

- the trip still takes 5 days in the warp

- the Navigator *thinks* it will take 2,5 days (but is unsure)

This seems pretty obvious, were it not for page 27:

The journey one way through a Warp route might not take
the same time the other way, so the GM should determine the
approximate duration again for a return journey. Note that
this approximation is not the actual duration of the voyage,
but instead the most correct approximation of the length of
the journey that a skilled Navigator could make under the
best of circumstances (see Divining the Auguries on page
28). The actual duration of the voyage is determined as a
function of this approximation and the Navigator’s success
leading the vessel through the Warp (see page 30).

This seems to imply that the estimation of the Navigator IS the duration in the warp, which would also imply that failing this test (and rolling 2) will shorten the trip.

Can someone elaborate on this?

If you "shorten" the trip, it means you are severely off-course. Check the place that talks about Translating back into real space.

Basically, if the real time was 5 and your navigator estimated 2.5 days, you'd translate back into real much sooner than you should, having to re-calculate the travel and continue from that point.

that makes a lot of sense! thanks!