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Table 1.
Physical constant and adopted parameters for the 6 June 2020 light curve fit and results.
| Parameter | Value |
|---|---|
| Pluto’s mass (GMp) | 8.69 × 1011 m3 s−2 |
| Surface radius (Rsurface) | 1187 km |
| Pluto’s geocentric distance (D) | 4.9889 × 109 km |
| Pluto pole position (J2000) | αp = 08h52m12.94s,  |
| N2 molecular refractivity (K) | 1.091 × 10−23 |
| Pressure at 1215 km (P1215) | 6.72 ± 0.48 μbar |
| Pressure at the surface (Psurface) | 12.36 ± 0.38 μbar |
| Closest approach to Pluto’s shadow center | 605.3 ± 5 km |
| Time of closest approach to shadow center (UT) | 19h4m1.58 ± 0.56s on 2020 June 06 |
| (Pluto+Charon)/star flux ratio | 0.313 ± 0.054 |
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