PJM is performing system maintenance on Tuesday, June 28 from 3:00 - 5:00 p.m. EPT (1500- 1700 hours). This production environment maintenance will cause an outage up to 30 minutes to Markets Gateway and stale data to Data Miner, Data Snapshot, PJM Now, and LMP postings on Data Viewer. In addition, there could be stale data on the Markets and Operations page.