Timeline for What caused the jitter in the DART video as it approached Dimorphos?
Current License: CC BY-SA 4.0
8 events
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| Oct 3, 2022 at 1:06 | history | edited | Mark Foskey | CC BY-SA 4.0 |
Totally revised based on new information.
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| Sep 29, 2022 at 18:52 | comment | added | Jan Hudec | The article linked in the other answer actually says course corrections were stopped 500 miles from the target to avoid blurring the final images. So orientation corrections or wobbling of the spacecraft. | |
| Sep 28, 2022 at 13:19 | comment | added | asdfex | @DavidHammen There might be some translation corrections as well - but they wouldn't cause the jitter the question is about. Especially not if the claim of 1/10000 g is correct. | |
| Sep 28, 2022 at 13:12 | comment | added | David Hammen | @asdfex From the APL web page of DART (see my community answer), they most definitely were both attitude and translation corrections. | |
| Sep 28, 2022 at 9:30 | comment | added | asdfex | I doubt that these are actual course corrections - that would have been too much dv. I think they rather are corrections of the orientation of the spacecraft to keep the camera pointed correctly. | |
| Sep 28, 2022 at 9:25 | comment | added | Jörg W Mittag | As far as I understand, the ion engine was partially a tech demonstrator. When they used it, they noticed some adverse effects on some other electronic component (I forgot what it was exactly, it might have been a power fluctuation or some heating). It turns out that the Falcon 9 performed so precisely that they didn't actually need the ion engine. | |
| Sep 28, 2022 at 4:16 | history | edited | astrosnapper | CC BY-SA 4.0 |
DAFT->DART
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| Sep 28, 2022 at 3:16 | history | answered | Mark Foskey | CC BY-SA 4.0 |