Vacuum-environment around Spacelab-1

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概要

• 論文の詳細を見る

• The background pressure for the SEPAC experiments (Space Experiments with Particle Accelerators) was monitored by the vacuum gauge on the Spacelab pallet. The pressure during the whole mission shows a clear relationship with the orbiter's velocity vector. When the gauge is screened by the orbiter from the relative flow of the upper atmosphere (wake condition), the pressure is constantly low, but much higher than that of the model atmosphere. At present, it is best explained by gas leakage from Spacelab or some of its instruments. When the gauge is open to the flow (ram condition), the pressure is linearly related to the cosine of the incident angle and has a maximum at normal incidence. The maximum is more than one order of magnitude higher than the model pressure. This is interpreted as escape of incident atmosphere from the Spacelab's surface with thermal velocity.

• 宇宙航空研究開発機構の論文

著者

• Sasaki Susumu

  Institute Of Space And Astronautical Science

• Kawashima N

  Inst. Space And Astronautical Science Kanagawa Jpn

関連論文

• Study of Spacecraft Environment on SFU
• SEPAC System Test in NASDA Space Chamber
• SEPAC System Test in NASDA Space Chamber
• Diagnostic Studies of SEPAC Test in NASDA Space Chamber
• SEPAC Particle Accelerator Test in NASDA Space Chamber
• Vacuum-environment around Spacelab-1

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