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Table 1
Summary of the seasonal variations and their effects on the outgassing rates over the different hemispheres throughout the Rosetta escort phase.
| Interval | Seasons and comments |
|---|---|
| 2014 August 1 – 2015 May 10 | [NH summer/SH winter] higher outgassing in the northern hemisphere than in the southern hemisphere |
| 2015 May 10 – 2015 September 4 | [NH autumn/SH spring] higher outgassing in the southern hemisphere than in the northern hemisphere |
| 2015 September 4 – 2016 May 21 | [NH winter/SH summer] higher outgassing in the southern hemisphere than in the northern hemisphere |
| 2016 May 21 – 2016 September 30 | [NH spring/SH autumn] outgassing in the southern hemisphere is still higher due to the CO2 in the southern hemisphere, which has a lower sublimation temperature than H2O. The two hemispheres have about the same magnitude of outgassing. |
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