2024 44 USC 1335 – Naval Observatory Observations

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2020 44 USC 1335 – Naval Observatory Observations

2018 44 USC 1335 – Naval Observatory Observations

2017 44 USC 1335 – Naval Observatory Observations

2015 44 USC 1335 – Naval Observatory Observations

2014 44 USC 1335 – Naval Observatory Observations

2013 44 USC 1335 – Naval Observatory Observations

2012 44 USC 1335 – Naval Observatory Observations

2010 44 USC 1335 – Naval Observatory Observations