GOLD science observations continued from day 335 through day 348 (December 14) when it was decided that, in order to preserve the Channel B detector, channel B observations would be suspended while permanent solution could be identified.  Channel A continued its normal operations, including the Northern Hemisphere from 2310 until 0010.

As in November, NI1 (nighttime disk scans) began at 2010 UTC using only Channel B, alternating hemispheres.  At 2310 UTC, Channel A began Northern Hemisphere scans while Channel B continued scanning, but only the Southern Hemisphere.

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No missing days (*) in December until December 15.

           2018.335 DEC 1                              2018.336 DEC 2                                     2018.337 DEC 3                                 2018.338 DEC 4

           2018.339 DEC 5                              2018.340 DEC 6                                     2018.341 DEC 7                                 2018.342 DEC 8

           2018.343 DEC 9                              2018.344 DEC 10                                     2018.345 DEC 11                                 2018.346 DEC12

           2018.347 DEC 13                              2018.348 DEC 14                                     Channel B operations were suspended for 3 months