Mangalyaan launch on a Tuesday at
(1) a fixed lagna with lagna lord in the 9th in exaltation,
(2) the 9th lord Venus in 11th (9th from 3rd, house of longevity),
(3) 2nd lord Jupiter in purva punya sthan and aspecting the lagna, lagna lord and the 9th lord,
(4) Mars, as 10th lord in 7th aspecting the lagna and the 10th house,
(5) Moon in the star of lagna lord Saturn, who is a karak for longevity
Are good signs for the success of the Mission Mangalyaan.
However there are worries in the form of 8th lord Mercury in retrogression in Rahu's star and Rahu and Mercury are in the same star within 3 degrees and a debilitated Saturn in the 12th house in Navamsa. The above factors make lagna lord Saturn on a strong wicket than the 8th lord ensuring a successful launch, but further success of the mission is a cause for concern. Rahu's interference shows some concern for electrical systems functioning.
My heart wishes for a JAIHO for MANGALYAAN!