Hacker Newsnew | past | comments | ask | show | jobs | submitlogin

> That's a fixable design problem.

You are right, it is fixable. It was fixed by adding active station keeping to the telescope.

> Or you can rotate the telescope.

There are limits on its rotation with respect to the Sun, dark side must be kept away from sunlight at all times. It can rotate 5 degrees "pitch down" toward the Sun and 45 degrees "pitch up". Gimballed antenna has enough authority so that it can communicate with Earth at whatever valid rotation telescope is so that science operations are not interrupted for transmitting data.

> The earth and the moon are nearby anyway. What about that reflected light? And heck, what about the sun limiting its field of view?

That light is reflected back by sunshield as all 3 bodies are behind it. Sun is limiting field of view but area of exclusion changes as telescope orbits and it can image every point in the sky at least every 6 months and 39% of the sky at any given moment.



Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: