[nytecam]

I'm surprised the sats weren't listed in heavens-above.com - did you check the time standard eg BST or GMT=UT [heavens-above usually corrects for BST etc] and the time and your location [nearesr town] are quite critical.

The colouring seems unusual but dust from the Russian volcano in Pacific ring has been giving unusual coloured skies and reddish moon when at low altitude throughout northern hemisphere including UK ..so maybe....

BTW - satellites always move west to east in a slightly arc across the sky [not dead straight] as the earth rotates below. Polar sats move north/south or visa versa.