| Date |
Acronym |
Information provided |
| 2019/07/26 | PDOC | BEACON INSTALLED |
| 2019/07/25 | PDOC | BEACON REMOVED |
| 2015/12/02 | PDOC | PDOC START |
| 2015/12/02 | PDOC | BEACON CHANGED |
| 2015/12/01 | PDNC | PDNC END |
| 2015/04/14 | PDNC | invalid data (corrupted data) END |
| 2014/09/25 | PDNC | PDNC START |
| 2014/09/25 | PDNC | invalid data (corrupted data) START |
| 2014/09/24 | PDMB | PDMB END |
| 2008/12/20 | PDMB | Corrupted data START (USO problem) |
| 2008/06/07 | PDMB | Corrupted data END |
| 2008/01/05 | PDMB | Lack of data END |
| 2008/01/05 | PDMB | Corrupted data START (antenna problem) |
| 2007/10/05 | PDMB | Lack of data START |
| 2007/08/02 | PDMB | Corrupted data END |
| 2007/04/07 | PDMB | Earthquake of magnitude:6.1 distance:114km |
| 2007/04/05 | PDMB | Earthquake of magnitude:6.3 distance:104km |
| 2007/04/03 | PDMB | Corrupted data START (connection problem) |
| 2007/04/03 | PDMB | Lack of data END |
| 2006/12/17 | PDMB | Lack of data START |
| 2001/08/22 | PDMB | PDMB START |
| 2001/08/21 | PDLB | PDLB END |
| 1998/11/22 | PDLB | PDLB START - New site |