I'm not sure if this helps (from National Archives HW 5/5):
CX/JQ/348
1 At 0030/28/9 Signals Officer of Air Movement Control Couvron asked what had become of one or more a/c which had started on operations against England at 1230/27/9. (A)
At the same hour he was heard mentioning Ju 88 3Z+HH, 3Z+JN, 3Z+GN, 3Z+DC. (A)
These a/c of KG 77 may have been the missing ones. (C)
Note: "(A)" and "(C)" are grades of reliability of the information; times are GMT.