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• POLOG
• ELOG

Took some wranglin' but I got orbit ironed out. The steering script couldn't do much with the orbit (Fig. 4) it was given. The first time, it gave me a dialog about orbit being off more than 7 mm so I aborted it. After cranking the Wien magnet down (Fig. 5) by about 10 G-cm I tried it again, and it didn't do all that much good (Fig. 6) after it's usual 15 attempts. With IPM1I04 near to zero after the MWF1I04 adjustment I was able to use the 1I04 corrector pair, with plenty of coupling fun, to get centered through the flipper solenoids. In doing so, the rest of the orbit cleaned up (Fig.

• POLOG
• ELOG

• POLOG
• ELOG

Seems like this transition (-20 to -10 and the reverse) produce the largest shifts in orbit so far.

• POLOG
• ELOG

• POLOG
• ELOG

This change required almost no orbit correction

• POLOG
• ELOG

Missed screengrab for orbit before correction, see plot (Fig. 8)

• POLOG
• ELOG

Wien magnet needed a relatively decent (~6 G-cm) nudge to get orbit flat

• POLOG
• ELOG

Noting nothable

• POLOG
• ELOG

Nothing notable

• POLOG
• ELOG

• POLOG
• ELOG

Missed the "before" screengrabs of steering script and Wien controls, see previous entry.

• POLOG
• ELOG

No change to H Wien magnet necessary to flatten orbit this time around.

• POLOG
• ELOG

Missed the "after angle change, before steering" screengrab. Otherwise, yawn inducing.

• POLOG
• ELOG

Hesitant to have the ELOG say this is a quickpic even though there's nothing that's already been said.

• POLOG
• ELOG

Nothing of note.

• POLOG
• ELOG

Familiar, though I'm surprised I didn't need to undo the prior steering done to reduce interception.

• POLOG
• ELOG

Much the same as the prior log, though I needed to do some steering (Fig. 10) to bring down the slight increase in interception.

• POLOG
• ELOG

Large shift at 1I07 w/ Wien change (Fig. 4) corrected first with H Wien magnet and then steered with correctors (Fig. 5). More vertical coupling introduced at 0I07. I'm not bothering with the steering script any more because it inevitably needs manual intervention. Vacuum and decarads nominal.

• POLOG
• ELOG

The steering script didn't have a chance with the orbit after (Fig. 4) the H Wien change, so I just steered manually (seems much quicker and more fun than the script!) and found (Fig. 5) the shift at 1I07 needed correction and further steering (Fig. 6). Some vertical coupling seems to be creeping in at 1I07 with each angle change. Interception is still good w/ 8 uA CW.

• POLOG
• ELOG

Fig. 1-3: As found
Fig. 4: Orbit after steering script attempt 1
Fig. 5: Orbit after nudging H Wien magnet a couple G-cm and resteering; script needed some help
Fig. 6: Interception w/ 15 uA CW
Fig. 7: H Wien after changes
Fig. 8: Vacuum and decarads
Fig. 9: Magnets n' BPMs during steering