easy peasy way to get them oriented for max power it to take an old tP tube, put stand it up on the panel and orient the panel for minimum (zero) shadow.
Now optimum placement will vary during the day, but the above done at a reasonable hour will get you oriented for pretty good all day orientation.
Where you are will have a big impact on the angle. But in all cases you will want the panel facing roughly south if you want the panels working all day w/o constant attention of direction.
2011 Keystone Outback 295RE
2004 14' bikehauler with full living quarters
2015.5 Denali 4x4 CC/SB Duramax/Allison
2004.5 Silverado 4x4 CC/SB Duramax/Allison passed on to our Son!