The secondary had another error where it couldn't stop on a full step. 0 0 F Modu="mir_o_MoveOneGalil"; Text=" Sec returned an error message" 0 0 I Received="?GOCORR one or more axes did not end on a full step 0, 0, 0, 0, 1" 0 0 W Text="failed to adjust collimation and focus" Like last night, homing the complaining axis cured the problem. The position error reported after homing was 150 microsteps or three turns and while not ideal at least it is an integer number of turns. PR 2559: Dewar 3 iced up and occasionally complaining of ln2temp, ln2 empty Lots of shaking of logTool was done tonight. Mirror numbers and offsets now show up in the editable section as well as the uneditable sections of the log. The change is made in v3_53_0 of iop, which is now the current test version. This afternoon, Jon B., Steph and Lynn inspected the PT drive surfaces and gave them a light coat of french horn rotary valve oil. They looked to be in good shape, with no or very little new oxidation. They were also fairly clean, given that they are only cleaned once a year or so. The PT flat field lamp was also replaced. The PT camera was removed and the reticle eyepiece installed in hopes the weather would break, allowing for a pointing model. It turns out that the weather had other plans. Steph completed the Spectro Monthly checkout since JB did not have time to complete it today. RESULTS OF SPECTRO MONTHLY CHECKOUT: ------------------------------------ All collimator motor positions were 0 to start. At the end of the checkout, they were: sp1> A 0 sp2> A -200 B 0 B -200 C 0 C 200 The red cameras needed no focus adjustment. The blue cameras only requred: sp1 blue: 6 degrees sp2 blue: 9 degrees Dithered spectro flats are in the MJD 52129 directory, images 10497-10503. Associated arcs are images 10504, 10505. Bias Percentiles - MJD 52129 Filename 02% 05% 10% 50% 90% 95% 98% ------------------- ------ ------ ------ ------ ------ ------ ------ sdR-b1-00010508.fit -6.9 -4.7 -3.5 1.3 7.0 8.1 10.0 sdR-b2-00010508.fit -8.9 -6.4 -5.1 1.5 8.1 9.4 10.9 sdR-r1-00010508.fit -7.4 -5.1 -4.0 1.1 7.1 8.7 11.0 sdR-r2-00010508.fit -7.7 -5.9 -4.5 0.7 6.1 8.1 9.1 A visual inspection of the bias frames revealed nothing unusual. Dark Percentiles - MJD 52129 Filename 02% 05% 10% 50% 90% 95% 98% ------------------- ------ ------ ------ ------ ------ ------ ------ sdR-b1-00010510.fit 2.0 4.2 5.4 13.3 20.1 22.4 25.7 sdR-b2-00010510.fit -5.2 -2.6 -0.4 6.2 13.3 15.4 18.5 sdR-r1-00010510.fit 0.6 2.9 4.5 12.1 19.5 21.5 24.5 sdR-r2-00010510.fit -4.9 -3.6 -1.6 4.4 10.8 12.9 15.0 The dark showed the same cosmic ray tail, and the same slight excess at about 20 ADU as in previous months.