PIONEER chronology Options

[Guest_PhilCo126_*]

Just thought I would start a similar topic as the 'VOYAGER chronology' ... of course with nice diagrams

[dmuller]

Pioneer 11 had a fairly close flyby of Atlas at 45,960km on 1 Sep 1979 15:06:32. To put it into perspective ... Cassini got closer to Atlas only once so far AFAIK!

Umm, in http://trs-new.jpl.nasa.gov/dspace/bitstre...5/1/03-0282.pdf actual TCA is given as 16:30:34.

I suspect that time is ET, which converts to 16:29:44 UTC. That's just 10 seconds off the times in Horizons. And at the time of C/A, the altitude doesnt change much so I'd take both times as being "equal enough" :-)

[Liss]

I suspect that time is ET, which converts to 16:29:44 UTC. That's just 10 seconds off the times in Horizons. And at the time of C/A, the altitude doesnt change much so I'd take both times as being "equal enough" :-)

No it's not correct.
Null et al. in https://ui.adsabs.harvard.edu/abs/1981AJ.....86..456N said Pioneer 11 CA was at 16:31:24 ET (spacecraft time). It fits with 16:30:34 UTC as listed by Campbell and Anderson (1989) and Jacobson (2003).
.
Also, there was an error in my list of Pioneer 11 Jupiter timeline. Unfortunately it did it to Wiki.
Tp+01h 08m = 22:29 - Amalthea, 127500 km
should read
Tp+01h 08m = 06:29 - Amalthea, 127500 km
.
And of course, in Pioneer 11 Saturn timeline
Tp-00h 30m = 16:04 - Dione, 291100 km
Tp-00h 07m = 16:27 - Dione, 291100 km
should read
Tp-00h 30m = 16:04 - Dione, 291100 km
Tp-00h 07m = 16:27 - Mimas, 104210 km