November 15, 2017 CDDIS Computer System Outage will affect SGP website 11/15/2017 CDDIS must undergo an unplanned outage on 16-Nov-2017 from 14:00-18:00 EST (19:00–22:00 UTC) to replace critical system hardware. Because the SGP website is hosted on the CDDIS server, there may be extended interruptions in connectivity to the SGP website during this period. We expect that the system outage will not require the full 4 hours but have allocated time to address any unforeseen issues. We apologize for any inconvenience these outages may cause the user community.