I'm working on a project to check variation of UV index with cloud cover. I'm trying to get the cloud cover data which I'll be using to plot the graph. I've historical data which I got from MODIS (MOD06_L2). But it doesn't has the current(today's) data. The closest date for which they have the data is 4 days back. Does anyone knows of any reliable source where I can get this data ? It will be better if the source has hourly data for cloud cover.