Subject: Re: [sdss3-25mlog 524] 2.5m obslog 20120217 (MJD 55975) From: Kaike Pan Date: Sat, 18 Feb 2012 09:28:31 -0700 Hi Garrett and Viktor,=20 Thanks a lot for your big effort in getting systems to where we can at = least take data.=20 -kaike On Feb 18, 2012, at 3:22 AM, gebelke@apo.nmsu.edu wrote: >=20 > APACHE POINT OBSERVATORY SDSS 2.5M >=20 > OBSERVING LOG > Friday February 17, 2012 >=20 > (MJD 55975) >=20 > ---- Observing Team ---- >=20 > Viktor Malanushenko > Garrett Ebelke >=20 > Phone Support: > Jon Brinkmann > Fritz Stauffer > Dan Long > Kaike Pan >=20 > ---- Observing Plan ---- >=20 > BOSS >=20 > ---- Observing Summary ---- >=20 > Network problems, high humidity, high winds, blowing snow, falling = snow and > clouds prevented us from opening. >=20 >=20 > When we arrived on-site, the entire 2.5m network was down. We could = not > communicate to the telescope or monitor any systems. Jon and Fritz = spent the > afternoon working on it and in the end they traced it down to a faulty > network switch. With Jon's Phone Support, I salvaged a network switch = from the > control > room and replaced the one in the server room. However, the salvaged = network > switch does not have 3 ports for fiber links, it only has 2. So we are = utilizing > the Building Support and Telescope fibers but not using the Control = Room at > the moment. Which means that minidru, landru and the 2.5m control room = monitor > are not operational (on the network that is). We are using STUI from = our laptops > over the wireless > network.=20 >=20 > After finally getting the network problem resolved, we spent the next > few hours getting systems and actors back online and finally got the = telescope > checked out.=20 >=20 > Everything is operational and should be ready for observations = tomorrow night > when the weather clears up.=20 >=20