OOI Cassandra Data Loss Incident -- April 15 to May 19, 2026

Known Issues
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1

On April 15, 2026, following routine maintenance on the Apache Cassandra database cluster, the system entered an unstable state known as an asymmetric network partition. While this did not cause a full outage, it resulted in intermittent read failures and, beginning April 21, intermittent failures to persist incoming data to Cassandra. The root cause was a split-brain condition in which cluster nodes held conflicting views of cluster health – each node believed itself healthy while marking others as offline. These mismatched perspectives prevented the cluster from reliably reaching quorum, causing inconsistent slowdowns and errors for users making data requests.

The issue was resolved on May 19, 2026 by sequentially restarting affected nodes, allowing each to fully synchronize with the cluster before proceeding to the next.

Analysis of EDEX ingest logs confirmed that write failures occurred in discrete time windows across seven affected days: April 21, May 7, and May 15 through May 19. Failures were not uniformly distributed across instruments – on the worst-affected day (May 19), 75 of 110 instruments had at least one stream with data loss, while May 7 saw only 3 affected instruments. Log analysis produced per-day, per-stream breakdowns identifying the specific time ranges and record counts for successful writes, failed writes, and streams with no failures, enabling targeted deletions and re-loads of the data at the instrument/method/stream level.

OOI personnel are reloading data into the impacted streams. We will update this ticket with information on the impacted streams and their reload status as they are addressed. Users who downloaded OOI data between April 15 and May 19, 2026 are encouraged to monitor this ticket and re-download the data from any impacted streams they may have downloaded once those streams have been reloaded to ensure they have the complete data record.

@mvardaro – Regional Cabled Array
@chris.wingard – Coastal Endurance Array
@cdobson – Global Irminger and Coastal Pioneer Arrays

2

Coastal Endurance Array – Reloaded Streams

All impacted Coastal Endurance Array sensors (currently deployed assets only were impacted) have been deleted and reloaded in the Cassandra database. The affected sensors are listed below. Note, for uncabled assets, the deletion and reload process impacts all streams.

Site Node Sensor Start End
CE02SHSM SBD11 02-HYDGN0000 2026-04-21 2026-04-21
CE02SHSM SBD11 06-METBKA000 2026-04-21 2026-04-21
CE02SHSM SBD11 06-METBKA001 2026-04-21 2026-04-21
CE02SHSM SBD11 06-METBKA000 2026-05-07 2026-05-07
CE02SHSM SBD11 01-MOPAK0000 2026-05-15 2026-05-19
CE02SHSM SBD11 02-HYDGN0000 2026-05-15 2026-05-19
CE02SHSM SBD11 06-METBKA000 2026-05-15 2026-05-19
CE02SHSM SBD11 06-METBKA001 2026-05-15 2026-05-19
CE02SHSM SBD12 03-HYDGN0000 2026-05-15 2026-05-19
CE02SHSM SBD12 04-PCO2AA000 2026-05-15 2026-05-19
CE02SHSM SBD12 05-WAVSSA000 2026-05-15 2026-05-19
CE05MOAS G1153 00-ENG000000 2026-05-15 2026-05-19
CE05MOAS G1153 01-PARADM000 2026-05-15 2026-05-19
CE05MOAS G1153 02-FLORTM000 2026-05-15 2026-05-19
CE05MOAS G1153 05-CTDGVM000 2026-05-15 2026-05-19

An internal ticket has been created to reload the data into the Gold Copy THREDDS catalog. I’ll update this ticket once that process is complete for Endurance Array assets.

Chris Wingard

3

All impacted Coastal Pioneer and Global Irminger sensors have been deleted and reloaded in the Cassandra database. The affected sensors are listed in the table below.

Site Node Sensor Start End
CP10CNSM RID26 00-DCLENG000 2026-04-21 2026-04-21
CP10CNSM RID26 03-TURBDA000 2026-04-21 2026-04-21
CP10CNSM RID26 04-VELPTA000 2026-04-21 2026-04-21
CP10CNSM SBD11 02-HYDGN0000 2026-04-21 2026-04-21
CP10CNSM SBD11 06-METBKA000 2026-04-21 2026-04-21
CP10CNSM SBD11 06-METBKA001 2026-04-21 2026-04-21
CP10CNSM SBD12 06-METBKA001 2026-04-21 2026-04-21
CP11NOSM MFD36 05-PCO2WB000 2026-04-21 2026-04-21
CP11NOSM MFD37 04-DOSTAD000 2026-04-21 2026-04-21
CP11NOSM RID26 04-VELPTA000 2026-04-21 2026-04-21
CP11NOSM RID27 02-FLORTD000 2026-04-21 2026-04-21
CP11NOSM RID27 03-CTDBPC000 2026-04-21 2026-04-21
CP11NOSM SBD11 00-DCLENG000 2026-04-21 2026-04-21
CP11NOSM SBD11 06-METBKA001 2026-04-21 2026-04-21
CP11NOSM SBD12 00-DCLENG000 2026-04-21 2026-04-21
CP11NOSM SBD12 03-HYDGN0000 2026-04-21 2026-04-21
CP11NOSM SBD12 05-WAVSSA000 2026-04-21 2026-04-21
CP11NOSM RID26 00-DCLENG000 2026-05-07 2026-05-07
CP11NOSM MFD36 00-DCLENG000 2026-05-15 2026-05-19
CP11NOSM MFD36 03-TURBDA000 2026-05-15 2026-05-19
CP11NOSM MFD36 05-PCO2WB000 2026-05-15 2026-05-19
CP11NOSM MFD37 00-DCLENG000 2026-05-15 2026-05-19
CP11NOSM MFD37 02-ADCPTF000 2026-05-15 2026-05-19
CP11NOSM MFD37 04-DOSTAD000 2026-05-15 2026-05-19
CP11NOSM RID26 00-DCLENG000 2026-05-15 2026-05-19
CP11NOSM RID26 01-PRTSZA000 2026-05-15 2026-05-19
CP11NOSM RID26 03-TURBDA000 2026-05-15 2026-05-19
CP11NOSM RID26 04-VELPTA000 2026-05-15 2026-05-19
CP11NOSM RID26 07-NUTNRB000 2026-05-15 2026-05-19
CP11NOSM RID26 08-SPKIRB000 2026-05-15 2026-05-19
CP11NOSM RID27 00-DCLENG000 2026-05-15 2026-05-19
CP11NOSM RID27 01-OPTAAD000 2026-05-15 2026-05-19
CP11NOSM RID27 02-FLORTD000 2026-05-15 2026-05-19
CP11NOSM RID27 03-CTDBPC000 2026-05-15 2026-05-19
CP11NOSM RID27 04-DOSTAD000 2026-05-15 2026-05-19
CP11NOSM SBD11 00-DCLENG000 2026-05-15 2026-05-19
CP11NOSM SBD11 05-SPKIRB000 2026-05-15 2026-05-19
CP11NOSM SBD11 06-METBKA000 2026-05-15 2026-05-19
CP11NOSM SBD11 06-METBKA001 2026-05-15 2026-05-19
CP11NOSM SBD12 00-DCLENG000 2026-05-15 2026-05-19
CP11NOSM SBD12 03-HYDGN0000 2026-05-15 2026-05-19
CP11NOSM SBD12 05-WAVSSA000 2026-05-15 2026-05-19
CP11SOSM MFD37 04-DOSTAD000 2026-04-21 2026-04-21
CP11SOSM RID26 07-NUTNRB000 2026-04-21 2026-04-21
CP11SOSM RID27 01-OPTAAD000 2026-04-21 2026-04-21
CP11SOSM RID27 03-CTDBPC000 2026-04-21 2026-04-21
CP11SOSM SBD11 06-METBKA000 2026-04-21 2026-04-21
CP11SOSM SBD11 06-METBKA001 2026-04-21 2026-04-21
CP11SOSM SBD12 03-HYDGN0000 2026-04-21 2026-04-21
CP11SOSM MFD36 00-DCLENG000 2026-05-07 2026-05-07
CP11SOSM MFD36 00-DCLENG000 2026-05-15 2026-05-19
CP11SOSM MFD36 01-PRTSZA000 2026-05-15 2026-05-19
CP11SOSM MFD36 03-TURBDA000 2026-05-15 2026-05-19
CP11SOSM MFD36 05-PCO2WB000 2026-05-15 2026-05-19
CP11SOSM MFD37 00-DCLENG000 2026-05-15 2026-05-19
CP11SOSM MFD37 03-CTDBPD000 2026-05-15 2026-05-19
CP11SOSM MFD37 04-DOSTAD000 2026-05-15 2026-05-19
CP11SOSM RID26 00-DCLENG000 2026-05-15 2026-05-19
CP11SOSM RID26 03-TURBDA000 2026-05-15 2026-05-19
CP11SOSM RID26 07-NUTNRB000 2026-05-15 2026-05-19
CP11SOSM RID26 08-SPKIRB000 2026-05-15 2026-05-19
CP11SOSM RID27 00-DCLENG000 2026-05-15 2026-05-19
CP11SOSM RID27 01-OPTAAD000 2026-05-15 2026-05-19
CP11SOSM RID27 02-FLORTD000 2026-05-15 2026-05-19
CP11SOSM RID27 03-CTDBPC000 2026-05-15 2026-05-19
CP11SOSM SBD11 00-DCLENG000 2026-05-15 2026-05-19
CP11SOSM SBD11 02-HYDGN0000 2026-05-15 2026-05-19
CP11SOSM SBD11 05-SPKIRB000 2026-05-15 2026-05-19
CP11SOSM SBD11 06-METBKA000 2026-05-15 2026-05-19
CP11SOSM SBD11 06-METBKA001 2026-05-15 2026-05-19
CP11SOSM SBD12 00-DCLENG000 2026-05-15 2026-05-19
CP11SOSM SBD12 03-HYDGN0000 2026-05-15 2026-05-19
CP11SOSM SBD12 05-WAVSSA000 2026-05-15 2026-05-19
CP12CNSW MFI01 02-CTDMOS031 2026-04-21 2026-04-21
CP13SOPM WFP01 00-WFPENG001 2026-04-21 2026-04-21
CP13SOPM WFP01 01-VEL3DK000 2026-04-21 2026-04-21
CP13SOPM WFP01 02-DOFSTK000 2026-04-21 2026-04-21
CP13SOPM WFP01 03-CTDPFK000 2026-04-21 2026-04-21
GI01SUMO RID16 08-SPKIRB000 2026-04-21 2026-04-21
GI01SUMO RII11 02-CTDBPP033 2026-04-21 2026-04-21
GI01SUMO RII11 02-CTDMOQ011 2026-04-21 2026-04-21
GI01SUMO RII11 02-FLORDG033 2026-04-21 2026-04-21
GI01SUMO SBD11 04-DOSTAD000 2026-04-21 2026-04-21
GI01SUMO SBD11 06-METBKA001 2026-04-21 2026-04-21
GI01SUMO RID16 00-DCLENG000 2026-05-15 2026-05-19
GI01SUMO RID16 01-OPTAAD000 2026-05-15 2026-05-19
GI01SUMO RID16 02-FLORTD000 2026-05-15 2026-05-19
GI01SUMO RID16 03-CTDBPF000 2026-05-15 2026-05-19
GI01SUMO RID16 06-DOSTAD000 2026-05-15 2026-05-19
GI01SUMO RID16 07-NUTNRB000 2026-05-15 2026-05-19
GI01SUMO RID16 08-SPKIRB000 2026-05-15 2026-05-19
GI01SUMO RII11 02-ADCPSN010 2026-05-15 2026-05-19
GI01SUMO RII11 02-CTDBPP031 2026-05-15 2026-05-19
GI01SUMO RII11 02-CTDBPP032 2026-05-15 2026-05-19
GI01SUMO RII11 02-CTDBPP033 2026-05-15 2026-05-19
GI01SUMO RII11 02-CTDMOQ011 2026-05-15 2026-05-19
GI01SUMO RII11 02-CTDMOQ012 2026-05-15 2026-05-19
GI01SUMO RII11 02-CTDMOQ013 2026-05-15 2026-05-19
GI01SUMO RII11 02-CTDMOQ014 2026-05-15 2026-05-19
GI01SUMO RII11 02-CTDMOQ015 2026-05-15 2026-05-19
GI01SUMO RII11 02-CTDMOQ016 2026-05-15 2026-05-19
GI01SUMO RII11 02-CTDMOQ017 2026-05-15 2026-05-19
GI01SUMO RII11 02-CTDMOR018 2026-05-15 2026-05-19
GI01SUMO RII11 02-CTDMOR019 2026-05-15 2026-05-19
GI01SUMO RII11 02-CTDMOR020 2026-05-15 2026-05-19
GI01SUMO RII11 02-FLORDG031 2026-05-15 2026-05-19
GI01SUMO RII11 02-FLORDG033 2026-05-15 2026-05-19
GI01SUMO RII11 02-PCO2WC052 2026-05-15 2026-05-19
GI01SUMO RII11 02-PCO2WC053 2026-05-15 2026-05-19
GI01SUMO SBD11 00-DCLENG000 2026-05-15 2026-05-19
GI01SUMO SBD11 03-HYDGN0000 2026-05-15 2026-05-19
GI01SUMO SBD11 04-DOSTAD000 2026-05-15 2026-05-19
GI01SUMO SBD11 05-SPKIRB000 2026-05-15 2026-05-19
GI01SUMO SBD11 06-METBKA001 2026-05-15 2026-05-19
GI01SUMO SBD11 08-NUTNRB000 2026-05-15 2026-05-19
GI01SUMO SBD12 00-DCLENG000 2026-05-15 2026-05-19
GI01SUMO SBD12 01-OPTAAD000 2026-05-15 2026-05-19
GI01SUMO SBD12 02-FLORTD000 2026-05-15 2026-05-19
GI01SUMO SBD12 03-HYDGN0000 2026-05-15 2026-05-19
GI01SUMO SBD12 04-PCO2AA000 2026-05-15 2026-05-19
GI01SUMO SBD12 06-METBKA000 2026-05-15 2026-05-19
GI01SUMO SBD12 06-METBKA001 2026-05-15 2026-05-19
4

Deletion and playback of impacted Regional Cabled Array instruments is underway. The incident affected 270 instruments (106 science sensors and 164 engineering sensors) across three time ranges. Due to the density of the streaming datasets, playback will take some time to complete individually without impacting system stability.

So far, the following 10 sensors have been fully purged and reloaded:

Reference Designator Start End
CE02SHBP-LJ01D-05-ADCPTB104 0 2026-04-21 17:00:00 2026-04-21 23:00:00
CE02SHBP-LJ01D-05-ADCPTB104 0 2026-05-07 7:00:00 2026-05-07 12:00:00
CE02SHBP-LJ01D-05-ADCPTB104 0 2026-05-14 15:00:00 2026-05-20 0:00:00
CE02SHBP-LJ01D-07-VEL3DC108 0 2026-04-21 17:00:00 2026-04-21 23:00:00
CE02SHBP-LJ01D-07-VEL3DC108 0 2026-05-07 7:00:00 2026-05-07 12:00:00
CE02SHBP-LJ01D-07-VEL3DC108 0 2026-05-14 15:00:00 2026-05-20 0:00:00
CE02SHBP-LJ01D-10-PHSENH110 0 2026-04-21 17:00:00 2026-04-21 23:00:00
CE02SHBP-LJ01D-10-PHSENH110 0 2026-05-07 7:00:00 2026-05-07 12:00:00
CE02SHBP-LJ01D-10-PHSENH110 0 2026-05-16 0:00:00 2026-05-20 0:00:00
CE04OSBP-LJ01C-05-ADCPSI103 0 2026-04-21 17:00:00 2026-04-21 23:00:00
CE04OSBP-LJ01C-05-ADCPSI103 0 2026-05-07 7:00:00 2026-05-07 12:00:00
CE04OSBP-LJ01C-05-ADCPSI103 0 2026-05-14 15:00:00 2026-05-20 0:00:00
CE04OSBP-LJ01C-06-CTDBPO108 0 2026-04-21 17:00:00 2026-04-21 23:00:00
CE04OSBP-LJ01C-06-CTDBPO108 0 2026-05-07 7:00:00 2026-05-07 12:00:00
CE04OSBP-LJ01C-06-CTDBPO108 0 2026-05-14 15:00:00 2026-05-20 0:00:00
CE04OSBP-LJ01C-06-DOSTAD108 0 2026-04-21 17:00:00 2026-04-21 23:00:00
CE04OSBP-LJ01C-06-DOSTAD108 0 2026-05-14 15:00:00 2026-05-20 0:00:00
CE04OSBP-LJ01C-07-VEL3DC107 0 2026-04-21 17:00:00 2026-04-21 23:00:00
CE04OSBP-LJ01C-07-VEL3DC107 0 2026-05-14 15:00:00 2026-05-20 0:00:00
CE04OSBP-LJ01C-08-OPTAAC104 0 2026-05-07 7:00:00 2026-05-07 12:00:00
CE04OSBP-LJ01C-08-OPTAAC104 0 2026-05-14 15:00:00 2026-05-20 0:00:00
CE04OSBP-LJ01C-09-PCO2WB104 0 2026-05-16 0:00:00 2026-05-20 0:00:00
CE04OSBP-LJ01C-10-PHSEND107 0 2026-05-14 15:00:00 2026-05-20 0:00:00
5

Playback to fill in the data gaps of the impacted Regional Cabled Array science instruments continues (45/106 complete). The following sensor time ranges have now been reloaded into the system:

Reference Designator Deployment time_utc end_time_utc
CE04OSPS-PC01B-4A-CTDPFA109 0 2026-04-21 17:00:00 2026-04-21 23:00:00
CE04OSPS-PC01B-4A-CTDPFA109 0 2026-05-07 7:00:00 2026-05-07 12:00:00
CE04OSPS-PC01B-4A-CTDPFA109 0 2026-05-14 15:00:00 2026-05-20 0:00:00
CE04OSPS-PC01B-4A-DOSTAD109 0 2026-04-21 17:00:00 2026-04-21 23:00:00
CE04OSPS-PC01B-4A-DOSTAD109 0 2026-05-07 7:00:00 2026-05-07 12:00:00
CE04OSPS-PC01B-4A-DOSTAD109 0 2026-05-14 15:00:00 2026-05-20 0:00:00
CE04OSPS-PC01B-4C-PHSENH109 0 2026-04-21 17:00:00 2026-04-21 23:00:00
CE04OSPS-PC01B-4C-PHSENH109 0 2026-05-16 0:00:00 2026-05-20 0:00:00
CE04OSPS-PC01B-4D-PCO2WA105 0 2026-04-21 17:00:00 2026-04-21 23:00:00
CE04OSPS-PC01B-4D-PCO2WA105 0 2026-05-16 0:00:00 2026-05-20 0:00:00
CE04OSPS-SF01B-2A-CTDPFA107 0 2026-04-21 17:00:00 2026-04-21 23:00:00
CE04OSPS-SF01B-2A-CTDPFA107 0 2026-05-14 15:00:00 2026-05-20 0:00:00
CE04OSPS-SF01B-2A-DOFSTA107 0 2026-04-21 17:00:00 2026-04-21 23:00:00
CE04OSPS-SF01B-2A-DOFSTA107 0 2026-05-07 7:00:00 2026-05-07 12:00:00
CE04OSPS-SF01B-2A-DOFSTA107 0 2026-05-14 15:00:00 2026-05-20 0:00:00
CE04OSPS-SF01B-2B-PHSENA108 0 2026-05-07 7:00:00 2026-05-07 12:00:00
CE04OSPS-SF01B-2B-PHSENA108 0 2026-05-14 15:00:00 2026-05-20 0:00:00
CE04OSPS-SF01B-3A-FLORTD104 0 2026-04-21 17:00:00 2026-04-21 23:00:00
CE04OSPS-SF01B-3A-FLORTD104 0 2026-05-07 7:00:00 2026-05-07 12:00:00
CE04OSPS-SF01B-3A-FLORTD104 0 2026-05-14 15:00:00 2026-05-20 0:00:00
CE04OSPS-SF01B-3B-OPTAAD105 0 2026-04-21 17:00:00 2026-04-21 23:00:00
CE04OSPS-SF01B-3B-OPTAAD105 0 2026-05-14 15:00:00 2026-05-20 0:00:00
CE04OSPS-SF01B-3C-PARADA102 0 2026-04-21 17:00:00 2026-04-21 23:00:00
CE04OSPS-SF01B-3C-PARADA102 0 2026-05-07 7:00:00 2026-05-07 12:00:00
CE04OSPS-SF01B-3C-PARADA102 0 2026-05-14 15:00:00 2026-05-20 0:00:00
CE04OSPS-SF01B-3D-SPKIRA102 0 2026-04-21 17:00:00 2026-04-21 23:00:00
CE04OSPS-SF01B-3D-SPKIRA102 0 2026-05-14 15:00:00 2026-05-20 0:00:00
CE04OSPS-SF01B-4A-NUTNRA102 0 2026-04-21 17:00:00 2026-04-21 23:00:00
CE04OSPS-SF01B-4A-NUTNRA102 0 2026-05-07 7:00:00 2026-05-07 12:00:00
CE04OSPS-SF01B-4A-NUTNRA102 0 2026-05-16 0:00:00 2026-05-20 0:00:00
CE04OSPS-SF01B-4B-VELPTD106 0 2026-04-21 17:00:00 2026-04-21 23:00:00
CE04OSPS-SF01B-4B-VELPTD106 0 2026-05-07 7:00:00 2026-05-07 12:00:00
CE04OSPS-SF01B-4B-VELPTD106 0 2026-05-14 15:00:00 2026-05-20 0:00:00
CE04OSPS-SF01B-4F-PCO2WA102 0 2026-05-16 0:00:00 2026-05-20 0:00:00
RS01SBPS-PC01A-05-ADCPTD102 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS01SBPS-PC01A-05-ADCPTD102 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS01SBPS-PC01A-05-ADCPTD102 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS01SBPS-PC01A-06-VADCPB101 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS01SBPS-PC01A-06-VADCPB101 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS01SBPS-PC01A-06-VADCPB101 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS01SBPS-PC01A-4A-CTDPFA103 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS01SBPS-PC01A-4A-CTDPFA103 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS01SBPS-PC01A-4A-DOSTAD103 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS01SBPS-PC01A-4A-DOSTAD103 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS01SBPS-PC01A-4A-DOSTAD103 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS01SBPS-PC01A-4B-PHSENA102 0 2026-05-16 0:00:00 2026-05-20 0:00:00
RS01SBPS-PC01A-4C-FLORDD103 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS01SBPS-PC01A-4C-FLORDD103 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS01SBPS-PC01A-4C-FLORDD103 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS01SBPS-SF01A-2A-CTDPFA102 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS01SBPS-SF01A-2A-CTDPFA102 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS01SBPS-SF01A-2A-CTDPFA102 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS01SBPS-SF01A-2A-DOFSTA102 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS01SBPS-SF01A-2A-DOFSTA102 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS01SBPS-SF01A-2A-DOFSTA102 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS01SBPS-SF01A-3A-FLORTD101 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS01SBPS-SF01A-3A-FLORTD101 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS01SBPS-SF01A-3B-OPTAAD101 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS01SBPS-SF01A-3B-OPTAAD101 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS01SBPS-SF01A-3B-OPTAAD101 0 2026-05-16 0:00:00 2026-05-20 0:00:00
RS01SBPS-SF01A-3C-PARADA101 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS01SBPS-SF01A-3C-PARADA101 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS01SBPS-SF01A-3C-PARADA101 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS01SBPS-SF01A-3D-SPKIRA101 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS01SBPS-SF01A-3D-SPKIRA101 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS01SBPS-SF01A-3D-SPKIRA101 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS01SBPS-SF01A-4A-NUTNRA101 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS01SBPS-SF01A-4A-NUTNRA101 0 2026-05-16 0:00:00 2026-05-20 0:00:00
RS01SBPS-SF01A-4B-VELPTD102 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS01SBPS-SF01A-4B-VELPTD102 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS01SBPS-SF01A-4B-VELPTD102 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS01SBPS-SF01A-4F-PCO2WA101 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS01SBPS-SF01A-4F-PCO2WA101 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS01SLBS-LJ01A-05-HPIESA101 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS01SLBS-LJ01A-05-HPIESA101 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS01SLBS-LJ01A-05-HPIESA101 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS01SLBS-LJ01A-11-OPTAAC103 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS01SLBS-LJ01A-11-OPTAAC103 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS01SLBS-LJ01A-12-CTDPFB101 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS01SLBS-LJ01A-12-CTDPFB101 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS01SLBS-LJ01A-12-DOSTAD101 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS01SLBS-LJ01A-12-DOSTAD101 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS01SLBS-LJ01A-12-DOSTAD101 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS01SLBS-MJ01A-06-PRESTA101 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS01SLBS-MJ01A-06-PRESTA101 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS01SLBS-MJ01A-12-VEL3DB101 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS01SLBS-MJ01A-12-VEL3DB101 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS01SLBS-MJ01A-12-VEL3DB101 0 2026-05-14 15:00:00 2026-05-20 0:00:00
6

Playback to fill in the data gaps of the impacted Regional Cabled Array science instruments continues (72/106 complete). The following sensor time ranges have now been reloaded into the system:

RefDes Deployment time_utc end_time_utc
RS01SUM1-LJ01B-09-PRESTB102 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS01SUM1-LJ01B-09-PRESTB102 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS01SUM1-LJ01B-09-PRESTB102 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS01SUM1-LJ01B-12-VEL3DB104 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS01SUM1-LJ01B-12-VEL3DB104 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS01SUM1-LJ01B-12-VEL3DB104 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS01SUM2-MJ01B-12-ADCPSK101 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS01SUM2-MJ01B-12-ADCPSK101 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS01SUM2-MJ01B-12-ADCPSK101 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03ASHS-MJ03B-07-TMPSFA301 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03ASHS-MJ03B-07-TMPSFA301 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS03ASHS-MJ03B-07-TMPSFA301 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03ASHS-MJ03B-10-CTDPFB304 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03ASHS-MJ03B-10-CTDPFB304 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS03ASHS-MJ03B-10-CTDPFB304 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03AXBS-LJ03A-10-ADCPTE303 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03AXBS-LJ03A-10-ADCPTE303 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS03AXBS-LJ03A-10-ADCPTE303 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03AXBS-LJ03A-11-OPTAAC303 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS03AXBS-LJ03A-11-OPTAAC303 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03AXBS-LJ03A-12-CTDPFB301 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03AXBS-LJ03A-12-CTDPFB301 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS03AXBS-LJ03A-12-CTDPFB301 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03AXBS-LJ03A-12-DOSTAD301 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03AXBS-LJ03A-12-DOSTAD301 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS03AXBS-LJ03A-12-DOSTAD301 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03AXBS-MJ03A-06-PRESTA301 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03AXBS-MJ03A-06-PRESTA301 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS03AXBS-MJ03A-06-PRESTA301 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03AXBS-MJ03A-12-VEL3DB301 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03AXBS-MJ03A-12-VEL3DB301 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS03AXBS-MJ03A-12-VEL3DB301 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03AXPS-PC03A-05-ADCPTD302 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03AXPS-PC03A-05-ADCPTD302 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS03AXPS-PC03A-05-ADCPTD302 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03AXPS-PC03A-06-VADCPB301 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03AXPS-PC03A-06-VADCPB301 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS03AXPS-PC03A-06-VADCPB301 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03AXPS-PC03A-4A-CTDPFA303 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03AXPS-PC03A-4A-CTDPFA303 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS03AXPS-PC03A-4A-CTDPFA303 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03AXPS-PC03A-4A-DOSTAD303 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03AXPS-PC03A-4A-DOSTAD303 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS03AXPS-PC03A-4A-DOSTAD303 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03AXPS-PC03A-4B-PHSENA302 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03AXPS-PC03A-4B-PHSENA302 0 2026-05-16 0:00:00 2026-05-20 0:00:00
RS03AXPS-PC03A-4C-FLORDD303 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03AXPS-PC03A-4C-FLORDD303 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03AXPS-SF03A-2A-CTDPFA302 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03AXPS-SF03A-2A-CTDPFA302 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS03AXPS-SF03A-2A-CTDPFA302 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03AXPS-SF03A-2A-DOFSTA302 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03AXPS-SF03A-2A-DOFSTA302 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS03AXPS-SF03A-2A-DOFSTA302 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03AXPS-SF03A-2D-PHSENA301 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03AXPS-SF03A-3A-FLORTD301 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03AXPS-SF03A-3A-FLORTD301 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03AXPS-SF03A-3B-OPTAAD301 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03AXPS-SF03A-3B-OPTAAD301 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS03AXPS-SF03A-3B-OPTAAD301 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03AXPS-SF03A-3C-PARADA301 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03AXPS-SF03A-3C-PARADA301 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS03AXPS-SF03A-3C-PARADA301 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03AXPS-SF03A-3D-SPKIRA301 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03AXPS-SF03A-3D-SPKIRA301 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS03AXPS-SF03A-3D-SPKIRA301 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03AXPS-SF03A-4A-NUTNRA301 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS03AXPS-SF03A-4A-NUTNRA301 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03AXPS-SF03A-4B-VELPTD302 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03AXPS-SF03A-4B-VELPTD302 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS03AXPS-SF03A-4B-VELPTD302 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03AXPS-SF03A-4F-PCO2WA301 0 2026-05-14 15:00:00 2026-05-20 0:00:00
7

Playback to fill in the data gaps of the impacted Regional Cabled Array science instruments is now complete. The only remaining gaps are in seismic sensor and hydrophone metadata that derive from the Antelope/ORB system (which have no playback method, but the OOI Raw Data Archive and the data sent directly to our IRIS/EarthScope partners are intact) and engineering metadata (which is mainly used for monitoring and has no effect on the science data). The following sensor time ranges have now been reloaded into the system:

RefDes Deployment time_utc end_time_utc
RS03CCAL-MJ03F-12-CTDPFB305 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03CCAL-MJ03F-12-CTDPFB305 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS03CCAL-MJ03F-12-CTDPFB305 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03ECAL-MJ03E-12-CTDPFB306 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03ECAL-MJ03E-12-CTDPFB306 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS03ECAL-MJ03E-12-CTDPFB306 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03INT1-MJ03C-07-D1000A301 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03INT1-MJ03C-07-D1000A301 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS03INT1-MJ03C-07-D1000A301 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03INT1-MJ03C-09-TRHPHA302 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03INT1-MJ03C-09-TRHPHA302 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03INT1-MJ03C-10-TRHPHA301 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03INT1-MJ03C-10-TRHPHA301 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS03INT1-MJ03C-10-TRHPHA301 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03INT2-MJ03D-11-CTDPFB307 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03INT2-MJ03D-11-CTDPFB307 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS03INT2-MJ03D-11-CTDPFB307 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03INT2-MJ03D-12-VEL3DB304 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03INT2-MJ03D-12-VEL3DB304 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03ASHS-MJ03B-09-BOTPTA304 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03ASHS-MJ03B-09-BOTPTA304 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS03ASHS-MJ03B-09-BOTPTA304 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03CCAL-MJ03F-05-BOTPTA301 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03CCAL-MJ03F-05-BOTPTA301 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS03CCAL-MJ03F-05-BOTPTA301 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03ECAL-MJ03E-06-BOTPTA302 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03ECAL-MJ03E-06-BOTPTA302 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS03ECAL-MJ03E-06-BOTPTA302 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03INT2-MJ03D-06-BOTPTA303 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03INT2-MJ03D-06-BOTPTA303 0 2026-05-07 7:00:00 2026-05-07 12:00:00
RS03INT2-MJ03D-06-BOTPTA303 0 2026-05-14 15:00:00 2026-05-20 0:00:00

The following are the seismic and hydrophone sensors with metadata gaps in Cassandra:

RefDes Deployment time_utc end_time_utc
CE02SHBP-LJ01D-11-HYDBBA106 0 2026-04-21 17:00:00 2026-04-21 23:00:00
CE02SHBP-LJ01D-11-HYDBBA106 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS01SBPS-PC01A-08-HYDBBA103 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS01SBPS-PC01A-08-HYDBBA103 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS01SLBS-LJ01A-09-HYDBBA102 0 2026-05-16 0:00:00 2026-05-20 0:00:00
RS01SLBS-MJ01A-05-HYDLFA101 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS01SLBS-MJ01A-05-HYDLFA101 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS01SLBS-MJ01A-05-OBSBBA102 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS01SLBS-MJ01A-05-OBSBBA102 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS01SUM1-LJ01B-05-HYDLFA104 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS01SUM1-LJ01B-05-HYDLFA104 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS01SUM1-LJ01B-05-OBSBBA101 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS01SUM1-LJ01B-05-OBSBBA101 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS01SUM1-LJ01B-06-OBSSPA103 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS01SUM1-LJ01B-06-OBSSPA103 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS01SUM1-LJ01B-07-OBSSPA102 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS01SUM1-LJ01B-07-OBSSPA102 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS01SUM1-LJ01B-08-OBSSPA101 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS01SUM1-LJ01B-08-OBSSPA101 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03ASHS-MJ03B-05-OBSSPA302 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03ASHS-MJ03B-05-OBSSPA302 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03ASHS-MJ03B-06-OBSSPA301 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03ASHS-MJ03B-06-OBSSPA301 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03AXBS-LJ03A-09-HYDBBA302 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03AXBS-LJ03A-09-HYDBBA302 0 2026-05-16 0:00:00 2026-05-20 0:00:00
RS03AXBS-MJ03A-05-HYDLFA301 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03AXBS-MJ03A-05-HYDLFA301 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03AXBS-MJ03A-05-OBSBBA303 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03AXBS-MJ03A-05-OBSBBA303 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03AXPS-PC03A-08-HYDBBA303 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03CCAL-MJ03F-06-HYDLFA305 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03CCAL-MJ03F-06-HYDLFA305 0 2026-05-16 0:00:00 2026-05-20 0:00:00
RS03CCAL-MJ03F-06-OBSBBA301 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03CCAL-MJ03F-06-OBSBBA301 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03ECAL-MJ03E-05-OBSSPA303 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03ECAL-MJ03E-05-OBSSPA303 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03ECAL-MJ03E-08-OBSSPA304 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03ECAL-MJ03E-08-OBSSPA304 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03ECAL-MJ03E-09-OBSBBA302 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03ECAL-MJ03E-09-OBSBBA302 0 2026-05-14 15:00:00 2026-05-20 0:00:00
RS03INT2-MJ03D-05-OBSSPA305 0 2026-04-21 17:00:00 2026-04-21 23:00:00
RS03INT2-MJ03D-05-OBSSPA305 0 2026-05-14 15:00:00 2026-05-20 0:00:00