Year: 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 Month: January February March April May June July August September October November December Day: 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Data interval (sec) : 1 2 10 20 30 60 120 300 600 . * Original sampling interval is 1 sec.