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--- chara:coude_alignment_procedure [2024/05/07 01:56]
charaobs [Coude Alignment Procedure]
+++ chara:coude_alignment_procedure [2024/05/07 19:53] (current)
charaobs [Udated 2024 May 6]
@@ Line 1: / Line 1: @@
 ===== Coude Alignment Procedure =====
-Udated 2024 May 6
+==== Updated 2024 May 6 ====
-<font inherit/Calibri,sans-serif;;blackfont-family:Calibri,sans-serif;;;inherit>Coude alignments help keep the blue beacon from drifting during slews. Needed when drift is excessive and makes realigning difficult when on sky.</font>
+<font 12pt/Aptos,sans-serif;;black;;white>Coude alignments help keep the blue beacon from drifting during slews. Needed when drift is excessive and makes realigning difficult when on sky.</font>
-<font inherit/Calibri,sans-serif;;blackfont-family:Calibri,sans-serif;;;inherit></font>
+  - Start with an M10 alignment before beginning the coude process (usually done on POP 5)
+  - Send M7's to default
+  - Do regular beginning of the night alignment procedure
+      - align beacon, dichroic, focus labao, focus wfs
+  - Open an engineering hut GUI: >> hutgtk -E S1 &
+      - AOB ENG tab
+      - note the M7_1 and M7_2 actuator positions and enter them on the Excel page.
+        - Select and hit **[GET].**
+        - Value reads below get and should match last entry on excel
+  - Turn powers on and enable scope(s)
+  - Dome GUI, Auto tab:
+      - On 'Az Pos', enter the stow position + 180
+      - **[Set Pos]**
+  - Watch beacon spots and use M7 to keep them centered while it rotates 180°.
+  - Obsgtk, align M7 when it stops moving.
+  - Hut GUI, note new M7_1 and M_2 values and enter in excel.
+      - ignore last 3 digits and record first 4
+      - spreadsheet will calculate the average value
+      - enter the average value + 3 zeros for each actuator (M7_1 and M7_2).
+      - If its a large move, watch the beacon spots as they move away because you will need to recenter them
+  - Use the dichroic to realign the beacon to labao
+  - Hit **[STOW]**  to return to stow position
+  - The beacon movement should be much smaller returning to stow than it was going away from stow
+  - Align M7
+  - Enter new actuator positions into excel
+  - Hut GUI, send both actuators to calculated position.
+  - Align dichroic
+  - if the beacon movements were small on the way back to stow, then the coude alignment is finished. If it wasn't, repeat until it is.
+  - Hut GUI, save the new M7 dichroic positions by hitting **[DICHR POS] **then **[WRITE CFG]**
+      - it will save them to /ctrscrut/chara/etc/S1_aob.cfg
+  - Can enter any notes on why coude alignment was needed on excel sheet.
-<font inherit/Times New Roman;;inherit;;inherit>1.</font><font inherit/Calibri,sans-serif;;blackfont-family:Calibri,sans-serif;;;inherit>Start with an M10 alignment before beginning the coude process.</font>
-<font inherit/Times New Roman;;inherit;;inherit>a.</font><font inherit/Calibri,sans-serif;;blackfont-family:Calibri,sans-serif;;;inherit>Usually done on pop 5</font>
+==== Updated 2021Jun01 by Judit: ====
-<font inherit/Times New Roman;;inherit;;inherit>2.</font><font inherit/Calibri,sans-serif;;blackfont-family:Calibri,sans-serif;;;inherit>Send M7’s to default</font>
+=== Preparation ===
-<font inherit/Times New Roman;;inherit;;inherit>3.</font><font inherit/Calibri,sans-serif;;blackfont-family:Calibri,sans-serif;;;inherit>Do regular beginning of the night alignment procedure.</font>
+Make sure the vacuum is below 5 torr in the pipe.
-<font inherit/Times New Roman;;inherit;;inherit>a.</font><font inherit/Calibri,sans-serif;;blackfont-family:Calibri,sans-serif;;;inherit>Align beacon, dichroic, focus labao, focus wfs</font>
-<font inherit/Times New Roman;;inherit;;inherit>4.</font><font inherit/Calibri,sans-serif;;blackfont-family:Calibri,sans-serif;;;inherit>Open an engineering hut gui</font>
-<font inherit/Times New Roman;;inherit;;inherit>a.</font><font inherit/Calibri,sans-serif;;blackfont-family:Calibri,sans-serif;;;inherit>Ex. hutgtk -E S1 &</font>
-<font inherit/Times New Roman;;inherit;;inherit>b.</font><font inherit/Calibri,sans-serif;;blackfont-family:Calibri,sans-serif;;;inherit>AOB ENG tab</font>
-<font inherit/Times New Roman;;inherit;;inherit></font>i. <font inherit/Calibri,sans-serif;;blackfont-family:Calibri,sans-serif;;;inherit>Note M7_1 and M7_2 positions and enter on excel page</font>
-<font inherit/Times New Roman;;inherit;;inherit></font>ii. <font inherit/Calibri,sans-serif;;blackfont-family:Calibri,sans-serif;;;inherit>Select and hit **[GET]**</font>
-<font inherit/Times New Roman;;inherit;;inherit></font>iii. <font inherit/Calibri,sans-serif;;blackfont-family:Calibri,sans-serif;;;inherit>Value reads below Get.</font>
-<font inherit/Times New Roman;;inherit;;inherit></font>iv. <font inherit/Calibri,sans-serif;;blackfont-family:Calibri,sans-serif;;;inherit>Values should match last entry on excel</font>
-<font inherit/Times New Roman;;inherit;;inherit>5.</font><font inherit/Calibri,sans-serif;;blackfont-family:Calibri,sans-serif;;;inherit>Turn powers on and enable scope(s)</font>
-<font inherit/Times New Roman;;inherit;;inherit>6.</font><font inherit/Calibri,sans-serif;;blackfont-family:Calibri,sans-serif;;;inherit>Dome gui, Auto tab</font>
-<font inherit/Times New Roman;;inherit;;inherit>a.</font><font inherit/Calibri,sans-serif;;blackfont-family:Calibri,sans-serif;;;inherit>On Az Pos enter stow position + 180</font>
-<font inherit/Times New Roman;;inherit;;inherit>b.</font>**<font inherit/Calibri,sans-serif;;blackfont-family:Calibri,sans-serif;;;inherit>[Set Pos]</font>**<font inherit/Calibri,sans-serif;;blackfont-family:Calibri,sans-serif;;;inherit></font>
-<font inherit/Times New Roman;;inherit;;inherit>7.</font><font inherit/Calibri,sans-serif;;blackfont-family:Calibri,sans-serif;;;inherit>Watch beacon spots and use M7 to keep them centered while it rotates 180 degrees.</font>
-<font inherit/Times New Roman;;inherit;;inherit>8.</font><font inherit/Calibri,sans-serif;;blackfont-family:Calibri,sans-serif;;;inherit>Obsgtk, align M7 when it stops moving</font>
-<font inherit/Times New Roman;;inherit;;inherit>9.</font><font inherit/Calibri,sans-serif;;blackfont-family:Calibri,sans-serif;;;inherit>Hut gui, enter new M7_1 and  M_2 values in excel.</font>
-<font inherit/Times New Roman;;inherit;;inherit>a.</font><font inherit/Calibri,sans-serif;;blackfont-family:Calibri,sans-serif;;;inherit>Ignore last 3 digits, record first 4</font>
-<font inherit/Times New Roman;;inherit;;inherit>b.</font><font inherit/Calibri,sans-serif;;blackfont-family:Calibri,sans-serif;;;inherit>Spreadsheet will calculate the average value</font>
-<font inherit/Times New Roman;;inherit;;inherit>c.</font><font inherit/Calibri,sans-serif;;blackfont-family:Calibri,sans-serif;;;inherit>Enter the average value + 3 zeros for M7_1 and hit **[GOTO]**. Do the same for M7_2.</font>
-<font inherit/Times New Roman;;inherit;;inherit>d.</font><font inherit/Calibri,sans-serif;;blackfont-family:Calibri,sans-serif;;;inherit>If its a large move watch the beacon spots as they move away because you will need to recenter them</font>
-<font inherit/Times New Roman;;inherit;;inherit>10.</font><font inherit/Calibri,sans-serif;;blackfont-family:Calibri,sans-serif;;;inherit>Use the dichroic to realign the beacon to labao</font>
-<font inherit/Arial,Helvetica,sans-serif;;inherit;;inherit>11. Dome gui,</font> <font inherit/Calibri,sans-serif;;blackfont-family:Calibri,sans-serif;;;inherit>hit **[STOW]** to return to stow positon</font>
-<font inherit/Times New Roman;;inherit;;inherit>12.</font><font inherit/Calibri,sans-serif;;blackfont-family:Calibri,sans-serif;;;inherit>The beacon movement should be much smaller returning to stow than it was going away from stow</font>
-<font inherit/Times New Roman;;inherit;;inherit>13.</font><font inherit/Calibri,sans-serif;;blackfont-family:Calibri,sans-serif;;;inherit>Align M7</font>
-<font inherit/Times New Roman;;inherit;;inherit>14.</font><font inherit/Calibri,sans-serif;;blackfont-family:Calibri,sans-serif;;;inherit>Enter new actuator positions into excel</font>
-<font inherit/Times New Roman;;inherit;;inherit>15.</font><font inherit/Calibri,sans-serif;;blackfont-family:Calibri,sans-serif;;;inherit>Hut gui, send both actuators to the new calculated position</font>
-<font inherit/Times New Roman;;inherit;;inherit>16.</font><font inherit/Calibri,sans-serif;;blackfont-family:Calibri,sans-serif;;;inherit>Align dichroic</font>
-<font inherit/Times New Roman;;inherit;;inherit>17.</font><font inherit/Calibri,sans-serif;;blackfont-family:Calibri,sans-serif;;;inherit>If the beacon movements were small on the way back to stow, then the coude alignment is finished. If it wasn’t, repeat until it is.</font>
-<font inherit/Times New Roman;;inherit;;inherit>18.</font><font inherit/Calibri,sans-serif;;blackfont-family:Calibri,sans-serif;;;inherit>Hut gui, save the new M7 dichroic positions by hitting the** [DICHR POS]** then** [WRITE CFG] **</font>
-<font inherit/Times New Roman;;inherit;;inherit>a.</font><font inherit/Calibri,sans-serif;;blackfont-family:Calibri,sans-serif;;;inherit>It will save them to /ctrscrut/chara/etc/S2_aob.cfg</font>
-<font inherit/Times New Roman;;inherit;;inherit>19.</font><font inherit/Calibri,sans-serif;;blackfont-family:Calibri,sans-serif;;;inherit>Can enter any notes on why coude alignment was needed on excel sheet.</font>
-==== Preparation ====
-  * Make sure the vacuum is below 5 torr in the pipe.
   * Proceed with the usual steps up to LAB DICH alignment with labao.
   * Adjust by hand DM tilt to front side of front rail target

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