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vatt:vatt_warm_startup_checklist [2021/06/23 14:30]
paul 		vatt:vatt_warm_startup_checklist [2022/04/24 17:45] (current)
paul
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 | ^ Cameras || | | ^ Cameras || |
-| | =) At all times, take advantage of the Hikvision and Axis cameras in order to monitor the status of the telescope. [[vatt:surveilcams|Dome, Security & Finderscope Cameras]] || |+| | =) At all times, take advantage of the Hikvision and Axis cameras in order to monitor the status of the telescope. [[vatt:surveilcams|Dome, Security & Finderscope Cameras]] || |
 | | || | | | || |
 | ^ Porch doors || | | ^ Porch doors || |
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 ^ ^**Thermalizing M1 and its mirror cell** ^^ | ^ ^**Thermalizing M1 and its mirror cell** ^^ |
-| | =) When night and day temperatures inside the dome differ greatly (wintertime; greenhouse effect), it is advisable to take a couple of hours before opening to thermalize. The chief remedy is to open the dome slit because the outside air is significantly cooler than the air inside the dome. See [[vatt:vatt_gradual_thermalization|Gradual Thermalization]] || |+| | :!::!::!: **Thermal shock is a 8-O danger m( to glass integrity :!::!: NEVER open the mirror cover if the mirror is more than 5°C warmer than ambient air** :!::!::!: || | 
 +| | =) When night and day temperatures inside the dome differ greatly (wintertime; greenhouse effect), it is advisable to take a couple of hours before opening to thermalize. The chief remedy is to open the dome slit because the outside air is significantly cooler than the air inside the dome. See [[vatt:what_is_new_at_vatt|What's New at VATT]] || |
 | | =) In summertime, nights are often warm on Mt Graham, with relatively small night/day temperature differences.|| | | | =) In summertime, nights are often warm on Mt Graham, with relatively small night/day temperature differences.|| |
 | |=) The outside air temperatures are often too high in the afternoons, so that opening the dome is not very useful until dusk/sunset.|| | | |=) The outside air temperatures are often too high in the afternoons, so that opening the dome is not very useful until dusk/sunset.|| |
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 |Dome |Opening the dome slit is the most effective way of letting the hot air out of the dome. But, around the equinoxes, the setting sun will shine on the secondary barrel. This is to be avoided. :!: Keep the sun off the secondary barrel :!: || | |Dome |Opening the dome slit is the most effective way of letting the hot air out of the dome. But, around the equinoxes, the setting sun will shine on the secondary barrel. This is to be avoided. :!: Keep the sun off the secondary barrel :!: || |
 |Dome/ Control room **later** |Open dome shutters (slit) about half way: at quad box on curved wall below the dome short installation position plug dome into the power socket (**note on safety: this ensures dome short is out: tether attached to cord**); operate the dome shutters by turning the control button on the electric box on the silo wall to the SE; stop the opening about half way by unplugging the power cord; this keeps the sun off the secondary barrel |Open dome shutters (slit) fully: at quad box on curved wall below the dome short installation position plug dome into the power socket (**note on safety: this ensures dome short is out: tether attached to cord**). No further action required in the dome: Shutters can be opened fully using TCSglue. | | |Dome/ Control room **later** |Open dome shutters (slit) about half way: at quad box on curved wall below the dome short installation position plug dome into the power socket (**note on safety: this ensures dome short is out: tether attached to cord**); operate the dome shutters by turning the control button on the electric box on the silo wall to the SE; stop the opening about half way by unplugging the power cord; this keeps the sun off the secondary barrel |Open dome shutters (slit) fully: at quad box on curved wall below the dome short installation position plug dome into the power socket (**note on safety: this ensures dome short is out: tether attached to cord**). No further action required in the dome: Shutters can be opened fully using TCSglue. | |
-|Dome|Check dome home position ([[vatt:miscellaneous_tips|Homing the Dome]]) and if necessary, correct it by lifting the encoder wheel, spinning it about ½ - turn (usually clockwise as viewed from the top) and immediately setting the wheel back down, into contact with the abrasive surface. Watch dome position until it settles down (usually overshoots at least twice, at varying velocities).|| | 
 |Dome|Check derotator position (home switch magnet is showing, near sensor, to its right); check cable wrap is not twisted|| | |Dome|Check derotator position (home switch magnet is showing, near sensor, to its right); check cable wrap is not twisted|| |
 |Dome|Turn on power supply of the legacy finder telescope camera (on top of box on South side of East fork)|| | |Dome|Turn on power supply of the legacy finder telescope camera (on top of box on South side of East fork)|| |
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 |Control room|Turn big fan down to speed 8 (knob on top of strip to the right of SW balcony door), to make the dome comfortable for procedures to be carried out there, and later, when conducting startup procedures in the control room, to hear the sounds from the dome better over the intercom || | |Control room|Turn big fan down to speed 8 (knob on top of strip to the right of SW balcony door), to make the dome comfortable for procedures to be carried out there, and later, when conducting startup procedures in the control room, to hear the sounds from the dome better over the intercom || |
 |Control room|TCSglue main window: turn on dome tracking. :?: Are you sure the dome short is out? :?: || | |Control room|TCSglue main window: turn on dome tracking. :?: Are you sure the dome short is out? :?: || |
 +|Dome|Check dome home position ([[vatt:miscellaneous_tips|Homing the Dome]]) and if necessary, correct it by lifting the encoder wheel, spinning it about ½ - turn (usually clockwise as viewed from the top) and immediately setting the wheel back down, into contact with the abrasive surface. Watch dome position until it settles down (usually overshoots at least twice, at varying velocities).|| |
 |Dome|**VATT 4k CCD Imager only:** start filling science camera dewar with LN2; if using remotely controllable valve follow [[VATT:Jinvoo LN2 valve|instructions in a separate document]]|| | |Dome|**VATT 4k CCD Imager only:** start filling science camera dewar with LN2; if using remotely controllable valve follow [[VATT:Jinvoo LN2 valve|instructions in a separate document]]|| |
 |Dome|**VATT 4k CCD Imager only:** fill out LN2/camera log – listen for full dewar, cease flow when dewar is full|| | |Dome|**VATT 4k CCD Imager only:** fill out LN2/camera log – listen for full dewar, cease flow when dewar is full|| |
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 |Control room|XEPHEM: //If applicable,// dialog box/"filter" field: ENTER PATH TO USER FILES || | |Control room|XEPHEM: //If applicable,// dialog box/"filter" field: ENTER PATH TO USER FILES || |
 |Control room|XEPHEM: A new version made this unnecessary: <del>Make sure that XEPHEM communicates with the telescope: In the "Telescope" pull-down menu, select "INDI Panel", which opens, and then toggle "Connect" at the panel's bottom. Check that there is a graphical representation of the telescope's position (bull's eye) in the SKY VIEW chart.</del>|| | |Control room|XEPHEM: A new version made this unnecessary: <del>Make sure that XEPHEM communicates with the telescope: In the "Telescope" pull-down menu, select "INDI Panel", which opens, and then toggle "Connect" at the panel's bottom. Check that there is a graphical representation of the telescope's position (bull's eye) in the SKY VIEW chart.</del>|| |
 +|Control room|XEPHEM: Open SKY VIEW window: go to the pull-down menu ''View'', and select the penultimate item, ''Sky view'' || |
 |Control room|XEPHEM: SKY VIEW window: We used to click grid control (under Images menu) twice, turning RA–DEC grid off and then Alt–Az grid on. This does not seem to work anymore. In the "Control" pull-down menu select "Options", which opens a new window, and toggle "Alt-Az" at the top left of the window.|| | |Control room|XEPHEM: SKY VIEW window: We used to click grid control (under Images menu) twice, turning RA–DEC grid off and then Alt–Az grid on. This does not seem to work anymore. In the "Control" pull-down menu select "Options", which opens a new window, and toggle "Alt-Az" at the top left of the window.|| |
 |Control room|8-) First initialization of coordinates can be performed shortly after sunset, using a very bright star (<2mag).|| | |Control room|8-) First initialization of coordinates can be performed shortly after sunset, using a very bright star (<2mag).|| |
vatt/vatt_warm_startup_checklist.1624483815.txt.gz · Last modified: 2021/06/23 14:30 by paul

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