Table 2
Atmospheric pressure on Pluto.
| Surface | Pressure at | Fit quality | |
|---|---|---|---|
| Date | pressure psurf | 1215 km p1215 |  |
| (μbar) | (μbar) | ||
| 1988 Jun. 09 | 4.28 ± 0.44 | 2.33 ± 0.24 (a) | NA |
| 2002 Aug. 21 | 8.08 ± 0.18 | 4.42 ± 0.093 | 1.52 |
| 2007 Jun. 14 | 10.29 ± 0.44 | 5.6 ± 0.24 | 1.56 |
| 2008 Jun. 22 | 11.11 ± 0.59 | 6.05 ± 0.32 | 0.93 |
| 2008 Jun. 24 | 10.52 ± 0.51 | 5.73 ± 0.21 | 1.15 |
| 2010 Feb. 14 | 10.36 ± 0.4 | 5.64 ± 0.22 | 0.98 |
| 2010 Jun. 04 | 11.24 ± 0.96 | 6.12 ± 0.52 | 1.02 |
| 2011 Jun. 04 | 9.39 ± 0.70 | 5.11 ± 0.38 | 1.04 |
| 2012 Jul. 18 | 11.05 ± 0.08 | 6.07 ± 0.044 | 0.61 |
| 2013 May 04 | 12.0 ± 0.09 | 6.53 ± 0.049 | 1.20 |
| 2015 Jun. 29 | 12.71 ± 0.14 | 6.92 ± 0.076 | 0.84 |
| 2016 Jul. 19 | 12.04 ± 0.41 | 6.61 ± 0.22 | 0.86 |
Notes. (a) The value p1215 is taken from Yelle & Elliot (1997). The ratio psurf∕p1215 = 1.84 of the fitting model of DO15 wasapplied to derive psurf. Thus, the surface pressures (and their error bars) are mere scalings of the values at 1215 km. They do not account for systematic uncertainties caused by using an assumed profile (DO15 model); see discussion in Sect. 3.2. The qualities of the fits (values of 
) are commented on in Sect. 2.3.
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