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Table 2.
Recent atmospheric pressures of Pluto determined from ground-based stellar occultations.
| Observation | Surface pressure | Pressure at the radius |
 |
Reference |
|---|---|---|---|---|
| (μbar) | of 1215 km μbar | |||
| 1988 Jun. 09 | 4.28 ± 0.44 | 2.33 ± 0.24 | NA | Meza et al. (2019) |
| 2002 Aug. 21 | 8.08 ± 0.18 | 4.42 ± 0.09 | 1.52 | Meza et al. (2019) |
| 2007 Jun. 14 | 10.29 ± 0.44 | 5.6 ± 0.24 | 1.56 | Meza et al. (2019) |
| 2008 Jun. 22 | 11.11 ± 0.59 | 6.05 ± 0.32 | 0.93 | Meza et al. (2019) |
| 2008 Jun. 24 | 10.52 ± 0.51 | 5.73 ± 0.21 | 1.15 | Meza et al. (2019) |
| 2010 Feb. 14 | 10.36 ± 0.4 | 5.64 ± 0.22 | 0.98 | Meza et al. (2019) |
| 2010 Jun. 04 | 11.24 ± 0.96 | 6.12 ± 0.52 | 1.02 | Meza et al. (2019) |
| 2011 Jun. 04 | 9.39 ± 0.70 | 5.11 ± 0.38 | 1.04 | Meza et al. (2019) |
| 2012 Jul. 18 | 11.05 ± 0.08 | 6.07 ± 0.04 | 0.61 | Meza et al. (2019) |
| 2013 May 04 | 12.0 ± 0.09 | 6.53 ± 0.05 | 1.20 | Meza et al. (2019) |
| 2015 Jun. 29 | 12.71 ± 0.14 | 6.92 ± 0.07 | 0.84 | Meza et al. (2019) |
| 2016 Jul. 19 | 12.04 ± 0.41 | 6.61 ± 0.22 | 0.86 | Meza et al. (2019) |
| 2019 Jul. 17 |
 |
 |
0.84 | Arimatsu et al. (2020) |
| 2020 Jun. 06 | 12.36 ± 0.38 | 6.72 ± 0.48 | 0.84 | This study |
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