PJM is performing system maintenance on Tuesday, May 24 from 3:00 - 5:00 p.m. EPT (1500- 1700 hours). This maintenance will cause an outage up to two hours to Markets Gateway and stale data to Data Miner, Data Snapshot, PJM Now, and LMP postings on Data Viewer in the production environment. In addition, there could be stale data on the Markets and Operations page.