UVCS MISSION LOG ---------------- Date: 2 Apr 2011 ----- Last revision: 1 Aug 2011 (RR) -------------- File Name: 2011.04.02.a.log ---------- Compiled by: R. Rosati ------------ UVCS Activity: Load North Coronal Hole OVI stray light checks incorporating -------------- observations of the C III 977 Angstrom line from low heights SOHO Activity: -------------- EOF Staff: J. Kohl: Lead Scientist ---------- R. Rosati: Commander Command file: 11.04.02.17:44:33.cmd.log Activity: --------- 1) Stray light check at north coronal hole. Mirror is set to 1.7 Rsun. Sequence: HoleOVI 26927 18762 17 0 0 3 0 0 0 SCI_SPEC: Stray light check at 1.7 Rsun OBS_PROG: Primary: Sensitivity Sub Obj: Spatial Resolution SCI_OBJ: Calibration OBJ: Coronal Hole CMP_NAME: CMP_NUM: Duration: start: 2011.04.02.12:32 end: 2011.04.02.14:36 ONUMs = 26927 (60 exps) Instrument configuration: - Pointing: Sun center - Spacecraft Roll: 0 Degrees - Roll: 90 Degrees (18762) - Mirror/Occulter: 1.7 Ro 1.5 mm overocculting - LYA Slit: 50 um - OVI Slit: 100 um - LYA GRTPOS: 83040 - OVI GRTPOS: 82900 - OVI MCP Voltage: 215 - OVI mask: OVI_Hole_237 in slot 2 Fits Files: q11.04.02.16:31:37.ovi.dat 2) Stray light check at north coronal hole. Mirror is set to 1.7 Rsun. This sequence was aborted because the OVI grating was not set to the desired position. The grating should have been positioned to place the CIII 977 Angstrom line on the well-behaved region of the OVI detector, but the grating was left in the same position as the previous observation. Sequence: HoleOVI 26928 18762 17 0 16 2 0 0 0 SCI_SPEC: Stray light check at 1.7 Rsun OBS_PROG: Primary: Sensitivity Sub Obj: Spatial Resolution SCI_OBJ: Calibration OBJ: Coronal Hole CMP_NAME: CMP_NUM: Duration: start: 2011.04.02.14:45 end: 2011.04.02.16:04 ONUMs = 26928 (34 exps) Instrument configuration: - Pointing: Sun center - Spacecraft Roll: 0 Degrees - Roll: 90 Degrees (18762) - Mirror/Occulter: 1.7 Ro 1.5 mm overocculting - LYA Slit: 50 um - OVI Slit: 300 um - LYA GRTPOS: 83040 - OVI GRTPOS: 82900 - OVI MCP Voltage: 215 - OVI mask: OVI_Hole_237 in slot 2 Fits Files: q11.04.02.18:45:20.ovi.dat 3) Stray light check at north coronal hole. Mirror is set to 1.7 Rsun. The OVI grating is positioned so the CIII 977 Angstrom line is on the well-behaved region of the OVI detector Sequence: HoleOVI 26929 18762 17 0 16 2 0 0 0 SCI_SPEC: Stray light check at 1.7 Rsun OBS_PROG: Primary: Sensitivity Sub Obj: Spatial Resolution SCI_OBJ: Calibration OBJ: Coronal Hole CMP_NAME: CMP_NUM: Duration: start: 2011.04.02.16:15 end: 2011.04.04.12:14 ONUMs = 26929 (226 exps) 26930 (509 exps) Instrument configuration: - Pointing: Sun center - Spacecraft Roll: 0 Degrees - Roll: 90 Degrees (18762) - Mirror/Occulter: 1.7 Ro 1.5 mm overocculting - LYA Slit: 50 um - OVI Slit: 300 um - LYA GRTPOS: 83040 - OVI GRTPOS: 236400 - OVI MCP Voltage: 215 - OVI mask: OVI_Hole_237 in slot 2 Fits Files: q11.04.02.20:14:35.ovi.dat q11.04.03.07:15:55.ovi.dat