Data plots / CIS spectrograms
Energy-time ion spectrograms from the CIS experiment:
Browse plots organised per day; by clicking on a browse (low-resolution)
plot a higher graphics-resolution plot is provided.
All spectrogram units are in corrected-for-detection-efficiency counts
per sec. (c/s).
All density plot units are in ions/cm3.
Each plot contains (from top to bottom):
- CIS-HIA mode (in black) and spacecraft telemetry mode (in red): cf. CIS Experiment Description, in Rème et al., Annales Geophysicae, 2001.
- HIA spectrogram for data from the "low g" (low-sensitivity) side: ions in the 45° x 45° sector centred in the solar wind direction (solar wind modes only).
- HIA spectrograms (4) for data from the "high G" (high-sensitivity) side: ions arriving in the 90° x 180° sector with a field-of-view pointing in the sun, dusk, tail, and dawn direction respectively (all modes).
- CIS-CODIF mode (in black) and spacecraft telemetry mode (in red).
- CODIF sensitivity side ("high G" or "low g") selected for data acquisition (in black) and CODIF post-acceleration high-voltage value (in magenta).
- Omnidirectional CODIF spectrograms (3) for H+, He+ and O+ ions respectively.
- Ion velocity (GSE system), in km/s, mesured by HIA.
- Ion density measured by HIA (in blue, all modes), and He++ density measured by HIA (in red, solar wind modes only).
- Ion density measured by CODIF, separately for H+, He++ , He+ and O+ .
- Spacecraft coordinates (GSE system) and geocentric distance, in RE.
For caveats about the CIS data, cf. the CIS Caveats page.
These spectrograms are not for publication, and the users should contact the PIs.