Track data from Joint Typhoon Warning Centre:
聯合颱風警告中心的熱帶氣旋路徑數據：

2021 Tropical Depression (2021-17W)

Date & Time     Latitude  Longitude Course Speed Wind Gust Sea Wave
(GMT)       Int (deg N)   (deg E)   (deg)  (kt)  (kt) (kt) (ft)
=========== === ========  ========= ====== ===== ==== ==== ========
2021090200  TD  26.9      159.7     315    10    30   40   9
2021090203  TD  27.2      159.4
2021090206  TD  27.1      158.9     305    7     30   40   12
2021090209  TD  27.5      158.6
2021090212  TD  27.5      158.9     330    3     30   40   12
2021090215  TD  27.9      158.8
2021090218  TD  29.0      158.2     345    13    30   40   13
2021090221  TD  29.6      158.2
2021090300  TD  29.7      157.7     330    8     30   40   13
2021090303  TD  30.3      157.7
2021090306  TD  30.6      157.8     010    9     30   40   13
2021090309  TD  31.2      158.0
2021090312  TD  31.5      158.3     025    10    30   40   13
2021090315  TD  32.2      158.7
2021090318  TD  32.9      159.6     040    18    25   35   11
2021090321  TD  33.7      160.3
2021090321  dissipated within 12 hours