Discussion of Data Quality

Data Quality information relating to the TIMAS PAPCO Module plots and in the underlying Common Data Format (CDF) Files.

Data Quality information is given in several varibles in the CDF skeleton table.

The Quality variable is set to one of the values below for each mass species at each time interval in the data file.

0 - OK.

1 - Some data missing.

2 - Slight MCP saturation.

3 - Moderate MCP saturation.

4 - Severe MCP saturation.

5 - No magnetometer data available.

6 - (Internal processing) Warning flags set.

99 - No valid data. "

NOTE These are not the same as the QUALITY VALUES in the data file described above

High Quality plot option
- Pitch-Angle Plot - Quality Value < 2
- Energy Spectrum Plot - Quality Value < 2
Adequate Quality plot option
- Pitch-Angle Plot - Quality Value < 4
- Energy Spectrum Plot - Quality Value < 4
Contact a member of the TIMAS science team if you are concerned about non-linear response of the TIMAS detector.

Prepared by Bill Peterson
February 1998

Last updated Jan 2003 by