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Table 1
Physical parameters of the Didymos system.
| Physical parameters | Value ± 1σ | Units | |
|---|---|---|---|
| Didymos rotation period a | T | 2.2600 ± 0.0001 | h |
| GM value | GMsys | 35.4 ± 1.5 | m3/s2 |
| Didymos mass b | MP | (5.26 ± 0.16) × 1011 | kg |
| System bulk density | ρ | 2790 ± 140 | kg/m3 |
| Didymos ellipsoid semiaxis x | aP ± ea | 394 ± 11 | m |
| Didymos ellipsoid semiaxis y | bP ± eb | 394 ± 11 | m |
| Didymos ellipsoid semiaxis z | cP ± ec | 290 ± 16 | m |
| Dimorphos ellipsoid semiaxis x | aS | 96 ± 6 | m |
| Dimorphos ellipsoid semiaxis y | bS | 74 ± 4 | m |
| Dimorphos ellipsoid semiaxis z | cS | 59 ± 7 | m |
Notes. The values were taken from Naidu et al. (2024). (a) Pravec et al. (2006). (b)Estimated in this work.
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