Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(a–d) Vector magnetic field measurements from ACE, DSCOVR, Wind, and ARTEMIS in the upstream solar wind. (e) Spacecraft locations in GSE coordinates at 18 UT on November 6. (f and h) B total and B z as well as (g and i) ion density at Wind and ARTEMIS, respectively. (j) Sym‐H, with vertical dashed lines marking the peaks of the six positive excursions.
