Some questions about look-back times for framed data served by our internal NDS servers have been asked recently, so for the record here are the current look-back times for each type of frame
| nds | science frames | commisioning frames | second trends |
| nds0 | 02 days 04 hours | 10 days 12 hours | 25 days 12 hours |
| nds1 | 02 days 11 hours | 10 days 21 hours | 24 days 11 hours |
data was obtained by the script /opt/rtcds/userapps/release/cds/h1/scripts/report_daq_framewriter_lookback_times.bsh