UVCS MISSION LOG ---------------- Date: 26 February 2010 ----- Last revision: 22 March 2010 (RR) -------------- File Name: 2010.02.26.a.log ---------- Compiled by: R. Rosati ------------ UVCS Activity: South Coronal Hole OVI Observations for -------------- 26 Feb 2010 - 5 Mar 2010 SOHO Activity: -------------- EOF Staff: J. Kohl: Lead Scientist ---------- R. Rosati: Commander Command file: 10.02.26.20:19:13.cmd.log Activity: --------- 1) South Coronal hole weekly observation Sequence: HoleOVIweek.tcl SCI_SPEC: Characterization of a polar coronal hole. Goal is to measure the properties of a polar coronal hole. In particular we are interested in the coronal conditions (intensities and line widths for HI Ly-alpha and OVI 1032/1037) as a function of height and latitude. We will compare these properties with the ones found in non-polar coronal holes. Roll positions are VL-corrected for PA=0 degrees. Determine Dark count rate for OVI detector. Instrument rolled to coronal hole, 5.0 Ro with 0.8 mm exposed mirror. Script engages OVI filter and then disengages it at end. *Observation program was loaded and intended to start on 24-Feb-10. However, the sequence actually started on 26-Feb-10. OBS_PROG: Primary: Sensitivity Sub Obj: Spatial Coverage SCI_OBJ: Plasma Properties...Proton and Ion Temperatures OBJ: Coronal Hole CMP_NAME: CMP_NUM: Duration: start: 2010.02.26.20:12 end: 2010.02.27.10:00 ONUMs = 26156 (79 exps) 26157 (320 exps) Instrument configuration: - Pointing: Sun center - Spacecraft Roll: 0 Degrees - Roll: -90 Degrees (51551) - Mirror/Occulter: 1.7 Ro 1.5 mm overocculting 2.0 Ro 1.5 mm overocculting 2.4 Ro 1.5 mm overocculting 5.0 Ro 1.5 mm overocculting - LYA Slit: 100 um - OVI Slit: 50, 75, 100 um - LYA GRTPOS: 100000 - OVI GRTPOS: 164600, 232100 - OVI MCP Voltage: 205 - OVI mask: OVI_sp2_164 in slot 4 OVI_Hole_237 in slot 2 OVI_chk_1xfull in slot 6 OVI_Hole_BG1 in slot 1 Fits Files: q10.02.26.20:12:43.ovi.dat q10.02.26.22:59:20.ovi.dat