Subject: Re: [sloan-25mlog 3178] 2.5m obslog 20161028 (SJD 57690) From: Dan Long Date: Sat, 29 Oct 2016 08:23:34 -0600 > On Oct 29, 2016, at 8:20 AM, Dan Long wrote: >=20 >=20 >> On Oct 29, 2016, at 6:51 AM, rlane@apo.nmsu.edu wrote: >>=20 >>=20 >> APACHE POINT OBSERVATORY SDSS 2.5M >>=20 >> OBSERVING LOG >> Friday October 28, 2016 >>=20 >> (SJD 57690) >>=20 >> ---- Observing Team ---- >>=20 >> Viktor Malanushenko >> Karen Kinemuchi >>=20 >> Andres Almeida >> Richard Lane >>=20 >>=20 >> ---- Observing Summary ---- >>=20 >> Lots of cloud up until 08:30Z >>=20 >> 09:08:47 encl25m : open; >>=20 >> ct=3D3, pl=3D8727; MJ55.72221-6.34539; GSOGTF; No exposure due to obs = window close >>=20 >> ct=3D6, pl=3D8139; MJ114.92903+32.63066; GSOGTF; 1NSE (3AB); COMPLETE >>=20 >> ct=3D1, pl=3D9182; MJ119.80037+40.01139; GSOGTF; 1NSE (3AB) + 1NS = (2AB); NOT COMPLETE >>=20 >>=20 >> eBOSS lost 5.9 hours due to weather, MaNGA lost 2 hours due to = weather. >>=20 >>=20 >>=20 >>=20 >>=20 >>=20 >> NOTES >> ----- >>=20 >> 1 - South dewer was filling every 4 hours but the north was filling = every 12 >> hours. Leak? Please check TPM information. >>=20 >>=20 >=20 > Not sure what was being seen last night regarding the dewars, but = the plots show no 10L fills between about 3 PM when the afternoon fill = was initiated and 3 AM when another fill was started prior to opening. >=20 > That said it appears the pop-off on the south dewar has stuck open = after the fill done upon closing around 7 AM. The pressure is down to 5 = PSI, and still dropping. Diana, could you please change it when you are = on site for plugging? >=20 > Cheers, >=20 > Dan >=20 I see my message is somewhat ambiguous. I mean change the dewar, not = the pop-off. :). -Dan