Also, sorry to get a bit off-topic, but here are the list of Yupiter missions in that AH of mine:
Yupiter-1: Launched in 1968, it has a modified version of the Venera/Mars orbiter bus with RTGs, and it's LV is a Proton-K. Supposed to do a Jupiter flyby, but it's 2nd stage cuts off 29 seconds after ignition, leaving it on a suborbital trajectory where it burns up in the atmosphere.
Yupiter-2: Launched in January 1971, almost identical to Yupiter-1, but this time, it's successful. It arrives at Jupiter in October of 1972.
Yupiter-3: Launched as a twin to Yupiter-2, but communications with it are lost 1 month before it's Jupiter encounter.
Yupiter-4: Launched in April of 1973, it was similar to the previous Yupiter spacecraft, but it would follow the same course as Pioneer 11, were it would flyby both Jupiter and Saturn, and it was successful.
Yupiter-5: Twin of Yupiter-4, but it was stranded in Earth orbit as the engine failed to ignite to do the trans-Jovian-injection.
Yupiter-6: Launched in 1975, it was intended to be a Jupiter orbiter, like the IRL Galileo, it was launched on an N1 (The final N1 to be launched), but an engine fire in the 3rd stage right after ignition caused it to literally explode, and thus it became the final Yupiter probe, and the Yupiter program came to an because of it, as flybys had already been done and an orbiter required an N1, which there were no more of.