| Year | Widows for Joint observation | Missions | remarks |
| 2014 | March 24 (0000 UT) – April 6 (2400UT)
| Incoherent Scatter Radar World Day: March 31 - April 4, 2014 |
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| 2015 | March 13-27, 2015 | incoherent scatter radar runs: March 17-20, 2015 and March 20-22, 2015 (the late period being the solar eclispe campiagn) |
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| 2016 | March 13 (20UT) — March 18 (20UT), 2016 |
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| 2017 | Sept 06 (00UT) -10 (24 UT), 2017 |
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| 2018 | June 6-20, 2018 (window) --> moved to Sept 21-26, 2018 |
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| 2019 | March 22-27, 2019 |
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| May 14-15, 2019 (potential interesting events due to multiple CMEs. some radars on) |
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| Sept 25-30, 2019 |
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| 2020 | Dec 8-13, 2020 (CME didn't arrive) |
| Convener; Zhang Shunrong, Michel Blanc |
| 2021 | Oct 3- Nov 3 |
| Convener; Zhang Shunrong, Lei Jiuhou |
| 2022 | March 30-April 3 | ||
| 2023 | Nov 11-15, Nov 30-Dec 5 | Convener; Zhang Shunrong, Xu Jiyao, Lei Jiuhou |
