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Merged 1-min Magnetic field, Plasma, and Trajectory data from IMP-8

This data set was created at GSFC/SECAA in 2005, using as input both the "15.36 s" magnetic field data set and the "1 min" MIT plasma data set. It has one record per minute, regardless of whether there were field and/or plasma data for that minute. In fact, there are no plasma parameters available when the spacecraft is on the magnetosphere side of the magnetopause.

Users of this 1 min data set are urged to consult documentation about the input data sets at Magnetic field: ftp://nssdcftp.gsfc.nasa.gov/spacecraft_data/imp/imp8/mag/15s_ascii/00readme.txt
Plasma: ftp://nssdcftp.gsfc.nasa.gov/spacecraft_data/imp/imp8/plasma_mit/sw_msheath_min/00readme.txt
This data set is placed at anonymous FTP site: ftp:// nssdcftp.gsfc.nasa.gov/spacecraft_data/imp/imp8/merged/
At this directory a user can find a description of the data

Time span of data set: 1974-01-01 2000-12-31

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* Use dates: (1) YYYYMMDDHH or (2) YYYYMMDD
Start Stop     For plots:
for (1), hours/panel [1-24]
for (2), days/panel [1-30]

*Select variables
SW flag from Bowshock data base
Position
X, GSE (Re)
Y, GSE (Re)
Z, GSE (Re)
Y, GSM (Re)
X, GSM (Re)
Magnetic field
No. of mag points
Coverage within min.
Interior fraction
Scalar B, nT
Vector B Magnitude, nT
Lat. Angle of B, GSE,deg.
Long. Angle of B, GSE, deg.
BX, nT (GSE,GSM)
BY, nT (GSE)
BZ, nT (GSE)
BY, nT (GSM)
BZ, nT (GSM)
RMS (Scalar B), nT
RMS (Field vector), nT
RMS Bx, nT (GSE), nT
RMS By, nT (GSE), nT
RMS Bz, nT (GSE), nT
Plasma
MIT SW flag
No. of plasma points
Coverage within min for plasma
Interior fraction for plasma
Flow Speed fit, km/s
Vx Velocity_fit, GSE, km/s
Vy Velocity_fit, GSE, km/s
Vz Velocity_fit, GSE, km/s
Plasma flow long_fit. angle
Plasma flow lat_fit angle
Proton Density_fit, n/cc
SW Temperature_fit, K
FlowSpeed_mom, km/s
Vx Velocity_mom, GSE, km/s
Vy Velocity_mom, GSE, km/s
Vz Velocity_mom, GSE, km/s
Plasma flow long_mom angle, deg.
Plasma flow lat_mom angle, deg.
Proton Density_mom, n/cc
Proton Temperature_mom, K

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Paper: Character size(0.5-2.0):
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Plot Symbol: Symbol Size(0.1-4.0):
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Foreground Color Index: (0-255) Background Color Index: (0-255)

If you have any questions/comments about this service contact: Dr. Natalia Papitashvili, Space Space Physics Data Facility, Mail Code 672.4, NASA/Goddard Space Flight Center, Greenbelt, MD 20771

NASA Official: Dr. Robert McGuire, Head of the Space Physics Data Facility