On Wednesday 21st June, we adjusted NLN input power to 60W 70648. Since then these have been our locklosses from NLN:

• 06/22 03:51UTC 1371441081 10hrs 35min
  • Cause: unknown 70700
• 06/23 07:51UTC 1371541886 26hrs 51min
  • Cause: unknown 70752
• 06/24 23:15UTC 1371683739 33hrs 34min
  • Cause: CDS h1iopseih45 DACKILL error 70790, 70792
• 06/25 08:03UTC 1371715410 4hrs 20min 
  • Cause: Earthquake 70798
• 06/26 03:31UTC 1371785497 16hrs 11min 
  • Cause: unknown 70810
• 06/26 11:51UTC 1371815491 7hrs 15min  
  • Cause: unknown 70812 ETMX glitch in length 125ms before lockloss, plot and rightmost attached plot.
• 06/26 20:40UTC  1371847234 7hrs 40min 
  • Cause: End station power glitches / thunderstorms 70829

I checked 'lockloss select' command lsc and asc plots for all "unknown" locklosses. Couldn't see any ring ups. The IMC unlocks after light falls off AS_A_DC in each of these. The DARM_IN1 signal as each looses lock is attached, 06/26 03:31UTC has the quickest change in signal.