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Table 1 The magnetic storms that occurred during June–July 2013

From: Observation of equatorial plasma bubbles by the airglow imager on ISS-IMAP

#

Date

SYM-H (min.)

VISI obs.

Backgrd. airglow

S1

6/1–3

− 140 nT

S2

6/7–8

− 85 nT

None

S3

6/28–30

− 100 nT

S4

7/6–7

− 80 nT

None

S5

7/9–11

− 55 nT

None

S6

7/13–15

− 75 nT

  1. In the events with checkmark in “VISI obs.”, VISI observations were carried out. The background emissions were strong enough to detect EPBs in the events the checkmark in “Backgrd. airglow”