Apache Point Observatory 3.5m Telescope Night Log Friday, July 03, 2026 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- JH05 N.Myers N.Myers ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- JH05 ECHELLE 21:43 04:59 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- JH05/R 20:24 01:10 1.3 0 0 0 1.1 2.4 0 0 JH05/R 01:10 05:51 0 0 0 0 0.0 4.7 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: T.Sutherland New dataq recording started at checkout. Opened just before 22:00 to a band of clouds passing through. The clouds persisted through the night, but we were able to get data nonetheless. No morning echelle iol, cals were being taken. No problems tonight. ------- FAILURE LOG ------- FAILURE MODE TIME PROG INSTR TI/SHU START FINISH DESCRIPTION ---------------------------------------------------------------------- ---------------- FOCUS LOG --------------- Time Instrument Focus Az El Temp Strc Prim Sec Air filt FWHM -------------------------------------------------------------------------- 21:50 ecamera 570( 623) -27 73 18.7 20.4 21.2 20.4 18.7 clear 1.06 02:12 ecamera 521( 372) 202 82 16.9 16.2 16.8 16.1 16.3 clear 1.02 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 80 37 14 233 (SW) 901 ptly cldy none 17:00 74 38 13 48 (NE) 959 ptly cldy lt rain 18:00 67 46 14 57 (ENE) 1647 ptly cldy none 19:00 69 44 13 72 (ENE) 1592 ptly cldy none 20:00 66 40 11 111 (ESE) 1135 mstly clr none 21:00 66 40 10 146 (SE) 1011 mstly clr none 22:00 66 39 13 150 (SSE) 982 mstly cldy none 23:00 65 41 15 159 (SSE) 1132 mstly cldy none 00:00 62 41 27 138 (SE) 1880 mstly cldy none 01:00 61 49 10 162 (SSE) 2070 ptly cldy none 02:00 62 48 13 165 (SSE) 1958 ptly cldy none 03:00 63 46 15 176 (S) 1741 mstly clr none 04:00 62 47 20 198 (SSW) 1706 mstly clr none 05:00 62 48 14 186 (S) 1951 mstly clr none Note: the wind was coming from the azimuth listed. The convention used is north=0 degrees, east=90 degrees. The dust count is particles > 1u per 0.1 cubic feet. ---------- TELESCOPE SOFTWARE ---------- Current TCC version: 1.4.2 Current HUB version: v20171231_01 Current TUI version: