# Space Weather Effects on Satellites
## 4 Results
### Space Weather Conditions during Starlink Launches
We continue by evaluating both the SFs and particle fluxes co-occurring with the spacecraft launch. Any effects due to EM emission, particle radiation and/or ejecta/shock arrival at Earth could be considered as a potential, additional risk for the spacecraft stability \begin{table}
\begin{tabular}{c c c c c c c} \hline \multicolumn{1}{c}{**Starlink Launch**} & \multicolumn{1}{c}{**GS Dst**} & \multicolumn{1}{c}{**ICME**} & \multicolumn{1}{c}{**IP Shock**} & \multicolumn{1}{c}{**\(B_{z}\)**} \\
**Date** & **hh:mm** & **dd/hh/nT** & **dd/hh/km s\({}^{-1}\)** & **dd/hh/km s\({}^{-1}\)** & **cm\({}^{-3}\)** & **dd/hh:mm/nT** \\ \hline
2020-04-22 & 19:31 & 20/13/59 & 20/09/330 & 20/01:33/336 & 6.7 & 20/11:52/\(-\)15 \\
2020-10-06 & 11:30 & 05/22/\(-\)40 & 05/17/350 & no & no & 05/19:34/\(-\)9 \\
2020-10-24 & 15:32 & 24/07/\(-\)38 & no & no & no & 23/20:16/\(-\)12 \\
2021-02-16 & 04:00 & 17/06/\(-\)54 & no & no & no & 13/03:07/\(-\)12 \\
2021-03-04 & 08:25 & 03/05/\(-\)39 & no & no & no & 01/04:05/\(-\)14 \\
2021-03-14 & 10:01 & 14/10/\(-\)43 & no & no & no & 13/05:06/\(-\)13 \\
2021-05-26 & 18:59 & 27/09/\(-\)28 & 26/05/410 & 26/11:45/369 & 10.9 & 27/06:15/\(-\)11 \\
2021-12-02 & 23:12 & 02/23/\(-\)25 & no & no & no & 02/15:02/\(-\)5 \\
2022-01-19 & 02:03 & 19/04/\(-\)44 & 19/05/610 & 18/22:58/820 & 1.2 & 19/05:05/\(-\)6 \\
2022-02-03 & 18:13 & 03/11/\(-\)66 & 02/16/460 & 01/22:27/543 & 4.2 & 03/09:37/\(-\)19 \\
2022-04-29 & 21:27 & 30/08/\(-\)37 & no & no & no & 27/13:01/\(-\)11 \\
2022-05-13 & 22:08 & 13/22/\(-\)39 & no & no & no & 11/19:55/\(-\)10 \\
2022-07-07 & 13:11 & 07/23/\(-\)81 & 07/12/380 & no & no & 07/12:48/\(-\)16 \\
2022-09-05 & 02:10 & 04/17/\(-\)72 & no & no & no & 04/05:24/\(-\)10 \\
2022-12-28 & 09:34 & 27/16/\(-\)68 & no & no & no & 26/12:24/\(-\)10 \\ \hline \end{tabular}
\end{table} 
Table 2: Starlink launches and accompanied magnetospheric and IP phenomena: date (yyyy-mm-dd) and time (hh:mm) of the Starlink launches; day (dd), nearest hour (hh), and value (in nT) of the Dst index of the GS; day/time/speed (in km s\({}^{-1}\)) of the ICME; day/time/speed (in km s\({}^{-1}\)) of the IP shock, density jump at the shock surface (in cm\({}^{-3}\)); day/time/value (in nT) for \(B_{z}\) component. All times are in UT. No reported events are denoted with ‘no’. Figure 1: Scatter plot of the modulus of Dst index and \(B_{z}\) component of the events in Table 2. The 2022-02-03 case is shown with a star symbol. in addition to the (ongooing) geomagnetic disturbance. Namely, we provide information about the solar emission in terms of soft X-rays (SXRs), e.g., [[ftp://ftp.swpc.noaa.gov/pub/warehouse/](ftp://ftp.swpc.noaa.gov/pub/warehouse/)]([ftp://ftp.swpc.noaa.gov/pub/warehouse/](ftp://ftp.swpc.noaa.gov/pub/warehouse/)) and [[https://www.solarmonitor.org/](https://www.solarmonitor.org/)]([https://www.solarmonitor.org/](https://www.solarmonitor.org/)), accessed on 17 August 2023. Additionally, the SEP and SEE fluxes are inspected by us from the Wind/EPACT and ACE/EPAM data, provided by [[https://cdaweb.gsfc.nasa.gov/index.html](https://cdaweb.gsfc.nasa.gov/index.html)]([https://cdaweb.gsfc.nasa.gov/index.html](https://cdaweb.gsfc.nasa.gov/index.html)), accessed on 17 August 2023, in a similar way as provided for the proton [23] and electron catalog [24]. The SFs and particle events are selected only if they occur simultaneously or in a period of several hours from the spacecraft launch. The results are summarized in Table 3 for the same event sample as in Table 2.  
Only for six launches, there is SXR emission found, started either before or, in one case, shortly after the launch. Compared with the IP conditions summarized in Table 2, we obtained coincidence only for two cases: 2021-05-26 and 2022-02-03. In both cases, the SFs are of the negligible (B7) or weak (C1.1) classes. Several hours following the launch on 2022-02-03, there are in situ electrons detected at L1.