SSJ Gogeta is stronger than SSJ Gotenks (Pre Rosat) and (Post Rosat) for sure.

but still SSJ Gogeta is weaker than SSJ2 Gotenks (Post Rosat) why?

Goten and Trunks (Post Rosat) they must strong around Goku (Buu Saga)

or even stronger because Base Gotenks (Post Rosat) > SSJ Gotenks(Pre Rosat)

and if i'm give sample of these power levels

Goten (Pre Rosat) = 25 Trunks (Pre Rosat) = 30

Goten (Post Rosat) = 80 Trunks (Post Rosat) = 85

Goku (Buu Saga) = 100 Vegeta ( Buu Saga) = 90

sample if Fusion is x10

Base Gotenks (Pre Rosat) = 550

Base Gotenks (Post Rosat ) = 1,650

Base Gogeta = 1,900

SSJ Gotenks (Pre Rosat) = 27,500

SSJ Gotenks (Post Rosat) = 82,500

SSJ Gogeta = 95,000

SSJ2 Gotenks (Post Rosat) = 165,000

SSJ3 Gotenks (Post Rosat) = 660,000

so it gonna be like this

SSJ Gotenks (Post Rosat) < SSJ Gogeta < SSJ2 Gotenks (Post Rosat) < SSJ3 Gotenks (Post Rosat)

Christopher James Diamond has written:

'ROSAT observations of DA white dwarfs'

The cast of Nowherenow - 2010 includes: Yuri Englert as Reporter Nicolas Rosat as Professor

ROSAT is a German satellite launched in 1990. It was used for research on black holes and neutron stars. It was supposed to be in space for 18 months, but since it was successful it stayed there for 8 more years. In 1999 communication of ROSAT satellite with Earth was lost. Scientists predict that it will hit the Earth sometimes between October 21 and October 24, 2011. Parts of the satellite will burn up during the re-entry in atmosphere, but at least 30 fragments, weighing 1.87 tons could crush into Earth with a speed up to 280 mph.