C1: Black
   C2: Red
   C3: Green
   C4: Blue

   QL Summary: 6 hours (CSDSWeb at RAL)

   Spacecraft Footprints and Ground-Based Instruments:
   High-Lat + Mid-Tail 2 hours
   Polar 2 hours (old)

   Conjunction Event Finder

CAUTION!! Figures are NOT for publication.

• The PI of FGM is Elizabeth A. Lucek at Imperial College (see for details of the instrument: Balogh et al., Ann. Geophys., 19, 1207-1217, 2001).
• The PI of CIS is Henri Rème at CESR (see for details of the instrument: Rème et al., Ann. Geophys., 19, 1303-1354, 2001).
• A plot is generated when HIA/CIS is operative on at least either of C1 and C3 and when FGM is operative on at least one of the four spacecraft.
• For FGM, the CP data are used for more than a few years ago, while the UP data are used for recent years.
• The data have 4 sec (one spin) resolution for both CIS and FGM.
• The data and Cluster locations are in GSM coordinates.
• The black, red, green, and blue curves represent the data from the Cluster-1 (C1), C2, C3, and C4 satellites, respectively.
• dB^2/B^2 denotes the sum of the three components of magnetic field variance, normalized by the squared field magnitude.
• The electric current, J, is computed by the curlometer technique [e.g., Dunlop et al., JGR, 107(A11), 1384, 2002] based on the FGM magnetic field measurements with 4 sec resolution; div B/rot B is the ratio between |div(B)| and |rot(B)|, both estimated by the curlometer technique, and can be used as a quality measure of the current estimate.
• The bulk plasma parameters are from the HIA part of the CIS instrument.
• D is the average inter-spacecraft distance.

Links

• Cluster Related Web Sites

If you have any problems, questions, or comments, please contact the ERG Science Center ("ergsc-help (at) isee.nagoya-u.ac.jp") or Y. Miyashita ("miyasita (at) isee.nagoya-u.ac.jp") at ISEE, Nagoya University.

This page was originally produced by H. Hasegawa, Y. Miyashita, T. Takada, and I. Shinohara
and moved from DARTS at C-SODA, ISAS, JAXA in Japan.

Last Modified: 2023/04/21