Open Access
Table 2
Rotation rates of the nucleus of 67P.
| Epoch number | Epoch of measurement | Period Psid | Rotation rate ω | Change in rotation rate Δω |
| decimal hours | 10-4 rad/s | 10-6 rad/s | ||
|
|
||||
| 1 | 2003–2007 | 12.76137 ± 0.00006 | 1.36767 | NA |
| 2 | March to June 2014 | 12.4043 ± 0.00007 | 1.40704 | +3.94 |
| 3 | 1 August to 6 Oct. 2014 | 12.4041 ± 0.02 s | 1.40706 | Not significant |
| 4 | 23 February 2015 | 12.4129 ± 0.1 s | 1.40606 | –0.100 |
| 5 | 17 May 2015 | 12.4309 ± 0.1 s | 1.40402 | –0.304 |
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