Twitter analytics

This may not be the correct forum but I’ll hope for positive responses.
I’m completing an MSc in Science Communication – one element of my dissertation involves analysing social media activity for a specific # – and I want to refine that by geographic location, time period, key words and language. I’ve looked at TweetArchivist, NodeXL but not sure of best options. I should also note this campaign covered the period 28 January – 11 February so should I be worried about accessing this data? Advice, recommended tools etc are all most welcome.