Thursday, June 27, 2013

June Modem Outages, both long and short

As we are finishing up our second month since the Saipan CREWS station was brought back online, some patterns are emerging with the cellular modem outages.  Two patterns in particular.

The first pattern is comprised of shorter-term outages that do not appear to require any manual intervention by PacIOOS or Docomo for resolution.  These include six outages of 1 - 3 hours described in this blog update and an additional 3-h outage mentioned at the end of this blog update.  It also includes the following outages that have not yet been mentioned in these blog updates (with all dates and times expressed in local Saipan time):
  • 3 hours, Wed June 5th from 7:30pm to 10:30pm
  • 3 hours, Mon June 10th from 5pm to 8pm
  • 3 hours, Thurs June 13th from 5am to 8am
  • 3 hours, Fri June 14th from 2pm to 5pm
Here there is a longer outage from June 15th - 17th that will be described below, but the intermittent outages continue with the following:
  • 1.5 hours, Thurs June 20th from 2am to 3:30am
  • 3 hours, Fri June 21st from 4am to 7am
  • 3 hours, Sat June 22nd from 1am to 4am
And again this pattern is broken by a longer outage, from midnight on the 22nd/23rd until the present.

The two longer outages mentioned above both began at about midnight on a Saturday/Sunday.  The first began Sat/Sun June 15th/16th and lasted until Docomo could be contacted for another purge at noon on Tuesday the 18th.  The second outage began at midnight Sat/Jun June 22nd/23rd and as of the writing of this update the station remains offline (it is now about 6am on Thursday morning, June 27th, in Saipan).

It would also be possible to pick out a third pattern from the above accounts, that of certain period of perfect or near-perfect communications.  There was one such period from May 25th to May 30th and another from June 5th to June 10th.

The status at present is that Docomo has not yet been contacted by phone concerning the present outage, since Gordon has been busy with fieldwork.  My latest information suggests that Docomo may be contacted later today (Thursday morning in Saipan) to request another purge, so hopefully communications will resume shortly.

Mike J+