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Table 1 Latitudinal threshold of each MLT bin at SYM-H = −40 nT, used for quantitative estimation

From: Occurrence characteristics and lowest speed limit of subauroral polarization stream (SAPS) observed by the SuperDARN Hokkaido East radar

MLT [h]

13–16

16–19

19–22

22–1

1–4

4–7

MLAT [°]

61

58

55

54

52

50

  1. For details, please refer to the main text