It's been a few years so I decided to check the alignment on my C-band dish especially since performance has degraded somewhat. The elevation/declination chart that came with the dish is different from the alignment chart at tvrosat. For example, the chart that came with the dish shows elevation at 42.72 for 42 degrees latitude while tvrosat shows 42.65. I suppose 0.07 degree wouldn't be much of an issue for C-band. One would expect that both should match though.