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The second commit here is the new code. We need to account for the pivot angle in the "off_angle" calculations so that we are +/-2 degrees from that pivot_angle offset.

@greglucas greglucas added this to the January 2026 milestone Jan 29, 2026
@greglucas greglucas self-assigned this Jan 29, 2026
@greglucas greglucas added Ins: Lo Related to the IMAP-Lo instrument Level: L1 Level 1 processing labels Jan 29, 2026
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Just want to check that this is what is desired.

lats = direction[:, 2]
# we want this relative to the pivot angle
# i.e. the off_angle is +/- 2 degrees from the pivot angle
lats = lats - (90 - l1b_de["pivot_angle"].values[0])
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I'm wondering if you really want to modify the lats here, or if it would make more sense to modify the lat_bins. The concern is that the off_angle values sort of lose the fact that they relative to the pivot angle. I would think that a user would want off_angle_bins to be in latitudinal degrees.

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I was also not sure, but I spoke with Lo yesterday and they want off_angle to be the range +/- 2, so relative to the pivot_angle no matter what the pivot_angle is. I agree this adds confusion though.

@greglucas greglucas merged commit e1263b8 into IMAP-Science-Operations-Center:dev Jan 29, 2026
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@greglucas greglucas deleted the lo-l1b-off-angle branch January 29, 2026 17:55
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2 participants