Updated By: Rudy Frahm, SwRI
The following is a list of the ELS Information for Mars Express orbit 4026
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An overall display of ELS data through out orbit 4026 may be found in the file:
4026_ELS_Overview.pdfFiles displaying blow-ups of all ELS sector data are found in the files:
4026_ELS_OverCloseA.pdf4026_ELS_OverCloseB.pdf
4026_ELS_OverCloseC.pdf
4026_ELS_OverCloseD.pdf
4026_ELS_OverCloseE.pdf
Files displaying blow-ups of selected ELS sector data are found in the files:
4026_ELS_PE_ParigeeA.pdfSector 3 blow-up to show photoelectron peak
The following is a time orientation summary of what is observed by ELS:
23:09 ELS data start in the solar wind
23:09:40 beginning of solar wind feature 1*
23:10:10 end of solar wind feature 1*
23:14 beginning of solar wind feature 2*
23:15:20 end of solar wind feature 2*
23:17:10 beginning of solar wind feature 3*
23:19 end of solar wind feature 3*
00:01 charging level begins to decrease
00:04 decrease in the intensity of the energy flux
00:06:30 beginning of bow shock
00:12 bow shock merges into the magnetosheath at about 100 eV
00:20 drastic drop in magnetosheath energy and intensity 1**
00:23 drastic drop in magnetosheath energy and intensity 2**
00:27 beginning of transition from the magnetosheath to the ionosphere
00:28:30 beginning of low-energy ionospheric plasma
00:31 beginning of photoelectron peaks
00:39 photoelectron peaks cease, beginning transition into evening
00:41 end transition into evening
00:49 flux increase, transition into more turbalent night side plasma
01:02 beginning of IMB, start seeing thin electron beams
01:09 transition to the magnetosheath
01:30 ion beams seen, beginning of bow shock, plasma transitioning into solar wind
01:46 end of bow shock, solar wind data observed
03:30 beginning of solar wind feature 4***
03:45 end of solar wind feature 4***
following are interesting features to note in the ELS data:
23:17:10 beginning of solar wind feature 3*
23:19 end of solar wind feature 3*, spacecraft charging level increases
03:30 beginning of solar wind feature 4***
03:45 end of solar wind feature 4***, like the solar wind was disturbed due to an obstical, possible increase in spacecraft charging between
03:33-03:38, near apogee of the spacecraft
Files containing ELS Derieved Products:
Additional Notes or Comments:
ELS data is seen to be in the 4-sec sweep mode through out this pass.ELS protection grid is set at 0 volts
*solar wind features 1, 2, and 3 are probably related. The remain unidentifyed
at present. These features are probably real as the spacecraft charging
appears to increase in feature 3.
**drastic drops in sheath energy and intensity resemble a transition from the
sheath into the ionosphere
***solar wind feature 4 looks like there was an obstical in the area because
the solar wind resembles being disturbed
