Parameter Plots & Comparison with Other Publications
On this page we provide text files and plots of the Ion Parameters that were derived at CU-LASP with the Viper code, text files and plots of the Electron Parameters that were derived by Sittler & Strobel (1987), plus electron densities derived from plasma wave data obtained by the PWS instrument and analyzed by Warwick et al. (1979) and Birmingham et al. (1981). Re-analysis of the Voyager PLS ion data was performed by Logan Dougherty & Kaleb Bodisch – see Papers 1,2,3. The scanning and digitizing of previously published data was done by Grace Marshall.
Read Me – File explaining what’s in the files below, and how they were derived.
Original Sources (CSVs will download when clicked)
CSV Data Set of Spacecraft Positions and Velocities – Data used of the spacecraft trajectory, visuals can be found here.
CSV Data set of Viper Ion Analysis (V1) – Ion Parameters from re-analysis of Voyager PLS ion data.
CSV Data Set of Viper Ion Analysis (V2) – Ion Parameters from re-analysis of Voyager PLS ion data.
CSV Data Set of Day 64 Density and Temperature – The overall charge density and charge temperature of the heavy ions on Day 64.
CSV Data Set of Electron Properties – All the electron temperatures and densities used, including Sittler & Strobel (SS), Viper, Birmingham and Warwick electron analyses.
CSV Data Set of Sitter & Strobel Electron Analysis
![Overlay T1: Hot electron density, the ratio of cold to hot electron densities, and the ratio of cold to hot electron temperatures. Overlay T1: Hot electron density, the ratio of cold to hot electron densities, and the ratio of cold to hot electron temperatures.](https://lasp.colorado.edu/mop/files/2017/05/comparisons_Page_5.png) |
Overlay T1: Hot electron density, the ratio of cold to hot electron densities, and the ratio of cold to hot electron temperatures.
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![Overlay T2: Overall density and overall temperature. Overlay T2: Overall density and overall temperature.](https://lasp.colorado.edu/mop/files/2017/05/comparisons_Page_3.png) |
Overlay T2: Overall density and overall temperature. Note that in the inner region the electron densities are derived from a combination of PLS ions and PRA
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![Overlay T3: Cold Electron Temperature. Overlay T3: Cold Electron Temperature.](https://lasp.colorado.edu/mop/files/2017/05/comparisons_Page_4.png) |
Overlay T3: Cold electron temperature.
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CSV Data Set of Birmingham Electron Analysis
![Overlay T4: Birmingham electron analysis. Overlay T4: Birmingham electron analysis.](https://lasp.colorado.edu/mop/files/2017/05/comparisons_Page_1.png) |
Overlay T4: Birmingham electron analysis.
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CSV Data Set of Warwick Electron Analysis
![Overlay T5: Warwick electron analysis. Overlay T5: Warwick electron analysis.](https://lasp.colorado.edu/mop/files/2017/05/comparisons_Page_2.png) |
Overlay T5: Warwick electron analysis.
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Electron Parameter Plots
Ion Parameter Plots
![Figure 19: H+ Density vs. Distance Figure 19: H+ Density vs. Distance](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/h_den_dis.png) |
Figure 19: H+; Density vs. Distance.
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![Figure 20: H+ Temperature vs. Distance Figure 20: H+ Temperature vs. Distance](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/h_temp_dis.png) |
Figure 20: H+; Temperature vs. Distance.
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![Figure 21: H+ Density vs. Time Figure 21: H+ Density vs. Time](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/h_den_time.png) |
Figure 21: H+; Density vs. Time.
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![Figure 22: H+ Temperature vs. Time Figure 22: H+ Temperature vs. Time](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/h_temp_time.png) |
Figure 22: H+; Temperature vs. Time.
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![Figure 23: O+ Density vs. Distance Figure 23: O+ Density vs. Distance](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/o1_den_dis.png) |
Figure 23: O+; Density vs. Distance.
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![Figure 24: O+ Temperature vs. Distance Figure 24: O+ Temperature vs. Distance](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/o1_temp_dis.png) |
Figure 24: O+; Temperature vs. Distance.
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![Figure 25: O+ Density vs. Time Figure 25: O+ Density vs. Time](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/o1_den_time.png) |
Figure 25: O+; Density vs. Time.
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![Figure 26: O+ Temperature vs. Time Figure 26: O+ Temperature vs. Time](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/o1_temp_time.png) |
Figure 26: O+; Temperature vs. Time.
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![Figure 27: O++ Density vs. Distance Figure 27: O++ Density vs. Distance](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/o2_den_dis.png) |
Figure 27: O++; Density vs. Distance.
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![Figure 28: O++ Temperature vs. Distance Figure 28: O++ Temperature vs. Distance](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/o2_temp_dis.png) |
Figure 28: O++; Temperature vs. Distance.
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![Figure 29: O++ Density vs. Time Figure 29: O++ Density vs. Time](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/o2_den_time.png) |
Figure 29: O++; Density vs. Time.
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![Figure 30: O++ Temperature vs. Time Figure 30: O++ Temperature vs. Time](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/o2_temp_time.png) |
Figure 30: O++; Temperature vs. Time.
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![Figure 31: S+ Density vs. Distance Figure 31: S+ Density vs. Distance](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/s1_den_dis.png) |
Figure 31: S+; Density vs. Distance.
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![Figure 32: S+ Temperature vs. Distance Figure 32: S+ Temperature vs. Distance](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/s1_temp_dis.png) |
Figure 32: S+; Temperature vs. Distance.
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![Figure 33: S+ Density vs. Time Figure 33: S+ Density vs. Time](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/s1_den_time.png) |
Figure 33: S+; Density vs. Time.
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![Figure 34: S+ Temperature vs. Time Figure 34: S+ Temperature vs. Time](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/s1_temp_time.png) |
Figure 34: S+; Temperature vs. Time.
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![Figure 35: S++ Density vs. Distance Figure 35: S++ Density vs. Distance](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/s2_den_dis.png) |
Figure 35: S++; Density vs. Distance.
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![Figure 36: S++ Temperature vs. Distance Figure 36: S++ Temperature vs. Distance](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/s2_temp_dis.png) |
Figure 36: S++; Temperature vs. Distance.
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![Figure 37: S++ Density vs. Time Figure 37: S++ Density vs. Time](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/s2_den_time.png) |
Figure 37: S++; Density vs. Time.
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![Figure 38: S++ Temperature vs. Time Figure 38: S++ Temperature vs. Time](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/s2_temp_time.png) |
Figure 38: S++; Temperature vs. Time.
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![Figure 39: S+++ Density vs. Distance Figure 39: S+++ Density vs. Distance](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/s3_den_dis.png) |
Figure 39: S+++; Density vs. Distance.
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![Figure 40: S+++ Temperature vs. Distance Figure 40: S+++ Temperature vs. Distance](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/s3_temp_dis.png) |
Figure 40: S+++; Temperature vs. Distance.
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![Figure 41: S+++ Density vs. Time Figure 41: S+++ Density vs. Time](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/s3_den_time.png) |
Figure 41: S+++; Density vs. Time.
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![Figure 42: S+++ Temperature vs. Time Figure 42: S+++ Temperature vs. Time](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/s3_temp_time.png) |
Figure 42: S+++; Temperature vs. Time.
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![Figure 43: Na+ Density vs. Distance Figure 43: Na+ Density vs. Distance](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/na_den_dis.png) |
Figure 43: Na+; Density vs. Distance.
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![Figure 44: Na+ Temperature vs. Distance Figure 44: Na+ Temperature vs. Distance](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/na_temp_dis.png) |
Figure 44: Na+; Temperature vs. Distance.
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![Figure 45: Na+ Density vs. Time Figure 45: Na+ Density vs. Time](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/na_den_time.png) |
Figure 45: Na+; Density vs. Time.
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![Figure 46: Na+ Temperature vs. Time Figure 46: Na+ Temperature vs. Time](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/na_temp_time.png) |
Figure 46: Na+; Temperature vs. Time.
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![Figure 47: SO2+ Density vs. Distance Figure 47: SO2+ Density vs. Distance](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/so2_den_dis.png) |
Figure 47: SO2+; Density vs. Distance.
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![Figure 48: SO2+ Temperature vs. Distance Figure 48: SO2+ Temperature vs. Distance](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/so2_temp_dis.png) |
Figure 48: SO2+; Temperature vs. Distance.
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![Figure 49: SO2+ Density vs. Time Figure 49: SO2+ Density vs. Time](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/so2_den_time.png) |
Figure 49: SO2+; Density vs. Time.
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![Figure 50: SO2+ Temperature vs. Time Figure 50: SO2+ Temperature vs. Time](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/so2_temp_time.png) |
Figure 50: SO2+; Temperature vs. Time.
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![Figure 51: Total Density vs. Distance Figure 51: Total Density vs. Distance](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/total_den_dis.png) |
Figure 51: Total Charge; Density vs. Distance.
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![Figure 52: Total Temperature vs. Distance Figure 52: Total Temperature vs. Distance](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/total_temp_dis.png) |
Figure 52: Total Charge; Temperature vs. Distance.
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![Figure 53: Total Density vs. Time Figure 53: Total Density vs. Time](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/total_den_time.png) |
Figure 53: Total Charge; Density vs. Time.
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![Figure 54: Total Temperature vs. Time Figure 54: Total Temperature vs. Time](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/total_temp_time.png) |
Figure 54: Total Charge; Temperature vs. Time.
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![Figure 55: Ion and Total Densities vs. Distance Figure 55: Ion and Total Densities vs. Distance](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/ion_total_den_dis.png) |
Figure 55: All Ions and Total Charge; Densities vs. Distance.
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![Figure 56: Ion and Total Temperatures vs. Distance Figure 56: Ion and Total Temperatures vs. Distance](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/ion_total_temp_dis.png) |
Figure 56: All Ions and Total Charge; Temperatures vs. Distance.
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![Figure 57: Ion and Total Densities vs. Time Figure 57: Ion and Total Densities vs. Time](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/ion_total_den_time.png) |
Figure 57: All Ions and Total Charge; Densities vs. Time.
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![Figure 58: Ion and Total Temperatures vs. Time Figure 58: Ion and Total Temperatures vs. Time](https://lasp.colorado.edu/media/projects/mop/Voyager1_plots/ion_total_temp_time.png) |
Figure 58: All Ions and Total Charge; Temperatures vs. Time.
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