AERI 3rd Blackbody Calibration with Breakout Cable and Front-end Removal

Equipment Required

  • Large phillips screwdriver
  • Small phillips screwdriver
  • Ball driver set
  • 3rd Blackbody
  • 3rd Blackbody breakout cable

Precaution

  • Verify that the red aperture cover of the 3rd blackbody has been removed prior to installation
  • Verify that the interior fan power cable is disconnected prior to running the test
  • Ensure that the ABB SP cable is disconnected after the test is complete

Procedure

Hardware setup

  1. Power OFF the instrument using the power bar in the AERI back-end
  2. Remove the front panel and the front-end enclosure from the AERI front-end (see instructions here)
    • Verify that the interior fan power cable is disconnected
  3. Remove the sky view aperture plate (four #8 hex screws) (Fig. 1).
  4. Locate the 3rd blackbody and remove the red protective aperture cover (Fig. 2). Note the serial number of the 3rd blackbody (near handle) to be used in the Software Setup below.
  5. Connect the “3rd body” connector on the 3rd blackbody breakout cable to the 3rd blackbody.
  6. Install the 3rd blackbody onto the sky view port (in place of the sky view aperture plate) (see Fig. 3)
    • Secure the 3rd blackbody: 2 (of 4) screws in diagonal positions are sufficient – but do not tighten yet
    • Push the 3rd blackbody flush against the optical alignment buttons on the back of the sky view port, so that it’s optically registered
    • Tighten the screws to secure the 3rd blackbody
  7. Connect the remaining 2 connectors on the breakout cable (Fig. 3)
    • Disconnect the ABB connector from the ABB
    • Connect the ABB connector into  “ABB Connector” on the breakout cable
    • Connect the “ABB” connector on the breakout cable to the ABB
  8. Back inside, confirm that all three of the ABB controller cables are connected: ABB (white 10-pin), ABBC P (white 4-pin), ABBC SPARC (black 3-pin). These go to the blackbody controller board, on the AERI back-end near the power bar (Fig. 4). Note: the software configuration (below) should be done shortly after in order to prevent temperature runaway issues with the 3rd blackbody.
  9. Power ON the instrument

Software setup

  1. Stop data collection on the AERI
    • Press ctrl-c up to 3 times in the black Cygwin window to terminate ingest, then close the FTSW window
  2. Manage the data directories
    • Rename c:\AEYYMMDD, where YYMMDD is the current date (e.g. c:\AE210228)
      • cd /cygdrive/c
      • mv AEYYMMDD AEYYMMDDA
    • Rename c:\ftp\AEYYMMDD, where YYMMDD is the current date (e.g. c:\ftp\AE210228)
      • cd /cygdrive/c/ftp
      • mv AEYYMMDD AEYYMMDDA
    • Rename the contents of c:\temp, and create a new empty c:\temp directory
      • cd /cygdrive/c
      • mv temp tempA
      • mkdir temp
    • Delete c:\E-AERI\Data\HouseKeeping.hk, if it exists
      • cd /cygdrive/c/E-AERI/Data
      • rm HouseKeeping.hk
  3. Change to 3rd body breakout configuration
    • cd \\config
    • change_config_to 3body_breakout
    • cat mirror.beg (to verify new correct mirror program is selected, first line should read 6 1 for standard AERIs)
  4. Change FTSW configuration file
    • Open the file c:\E-AERI\FTSW_EAERI.Config
      • nano /cygdrive/c/E-AERI/FTSW_EAERI.Config
    • Edit the file to set calibKitY.connected = true
      • This be near the bottom of the file
      • Do not confuse with the similar line calibKit.connected
    • Save the file
  5. Run FTSW_EAERI_GUI.bat (click FTSW on the desktop)
    • The software detects modification of the configuration file (see Fig. 8).  Click OK to start FTSW in calibration mode
    • Select the blackbody coefficient file for the 3rd blackbody
      • This is typically in the path c:\3rd_BB_coeffs
      • Use the file for the serial number of the 3rd blackbody, from Hardware Setup Step 4
    • Verify that ref1 Blackbody is displayed in FTSW and heating and stabilized at the correct temperature (Fig. 9)
      • The default setting is 45°C, and the blackbody heats at a rate of ~1°C/min
    • Exit FTSW

Running the test

  1. Run Ingest.bat to start the 3rd blackbody test (click Ingest on the desktop)
    • Run for at least 1.5 hours
  2. To terminate the test, press ctrl-c up to 3 times in the black Cygwin window, and close the FTSW window

Software packup

  1. Manage the data directories
    • Rename c:\ftp\AEYYMMDD, where YYMMDD is the current date (e.g. c:\AE210228)
    • If it is desired to resume ingest on the current UTC day and append to the previous sky data
      • mv AEYYMMDDA AEYYMMDD 
    • Rename c:\AEYYMMDD, where YYMMDD is the current date (e.g. c:\AE210228)
      • cd /cygdrive/c
      • mv AEYYMMDD AEYYMMDD_3body
    • If it is desired to resume ingest on the current UTC day and append to the previous sky data
      • mv AEYYMMDDA AEYYMMDD 
    • If data is not being appended to the current UTC day, then delete the contents of c:\temp, carefully double-check the correct path to avoid accidentally deleting something else
      • cd /cygdrive/c/temp
      • rm *
    • Else, if it is desired to resume ingest on the current UTC day and append to the previous sky data
      • cd /cygdrive/c
      • rm -r temp
      • mv tempA temp
    • Delete c:\E-AERI\Data\EAERIHouseKeeping.hk
      • cd /cygdrive/c/E-AERI/Data
      • rm EAERIHouseKeeping.hk
  2. Change to normal science configuration
    • cd \\config
    • change_config_to RS_3
    • cat mirror.beg (to verify new correct mirror program is selected, first line should read 20 1 for standard AERIs)
  3. Change FTSW configuration file
    • Open the file c:\E-AERI\FTSW_EAERI.Config
    • Edit the file to set calibKitY.connected = false
      • This should be near the bottom of the file
      • Do not confuse with the similar line calibKit.connected
    • Save the file
  4. Send the directory c:\ftp\AEYYMMDD_3body to the mentor team for analysis

Hardware packup

  1. Power OFF the instrument
  2. Disconnect the ABB SP cable from the ABB blackbody controller board connector on the AERI back-end (Fig. 4)
  3. Disconnect the 3rd blackbody breakout cable
    • Reconnect the ABB connector to the ABB
  4. Uninstall the 3rd blackbody
    • Replace the red protective aperture cover (Fig. 2)
  5. Re-install the sky view aperture plate (Fig. 1)
    • Attach the aperture place  the four #8 hex screws – but do not tighten yet
    • Push the aperture place up against the optical alignment buttons on the back of the sky view port so that it’s optically registered
    • Tighten the screws to secure the aperture plate
  6. Re-install the front-end enclosure and the front-panel on the AERI front-end (see instructions here)
  7. Power ON the instrument and resume normal data collection
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Figure 1. Four hex screws for the sky view aperture plate (red) and two optical alignment buttons (yellow)

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Figure 2. 3rd blackbody with red aperture cover

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Figure 3. AERI front-end in 3rd blackbody configuration.  The 3 connections for the 3rd blackbody breakout cable are shown

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Figure 4. ABBC SP connector on the AERI back-end

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Figure 5. FTSW startup detects a configuration change

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Figure 6. FTSW housekeeping panel showing 3rd blackbody temperature readings (ref1)