Following up on our adjustment of the FSS RefCav alignment on 2/10/2015 (alog 16605) I've attached a 10 day trend of the signal H1:PSL-FSS_TPD_DC_OUT_DQ. In this you can see our 2/10/2015 adjustment, where we left the TPD reading ~1.6V. It starts to decay early Monday morning, 2/16/2015 (~11:00:00 UTC) and is currently reading ~1.3V. Will keep an eye on this over the next few days, we may need to go in the PSL and adjust this again (most likely during the next Tuesday maintenance).