Dark frame matches:

Missing -> Available
Day 3
Hawk
1: Day 2 line 1
2,3: Day 11 line 4
4,5: No match
6-14: Day 11 line 4

Eagle
1: No match
2,3: Day 9 line 1
4,5: No match
6-14: Day 9 line 2

Day 4
Hawk
1,2: Day 7 line 5
3: Day 7 line 2
4: Day 7 line 5
5-8: No match
9-13: Day 7 line 5
14,15: Day 2 line 1

Eagle
1: Day 7 line 8
2,3: No match
4: Day 7 line 2
5-8: Day 11 line 1
9-11: Day 7 line 5
12,13: Day 8 line 1
14,15: Day 8 line 5

Day 5
Hawk
1: Day 7 line 5
2-11: No match
12-14: Day 10 line 2

Eagle
1-14: No match

Day 6
Hawk
1,2: Day 10 line 2
3: No match
4: Day 10 line 2
5: Day 2 line 1
6-8: Day 7 line 5
9-12: Day 2 line 1

Eagle
1,2: Day 10 line 2
3: No match
4: Day 10 line 2
5: Day 8 line 5
6,7: Day 8 line 1
8: Day 7 line 5
9-12: Day 8 line 5

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Available -> Missing

Hawk:
Day 2 line 1: Day 3 line 1; Day 4 lines 14,15; Day 6 lines 5,9-12
Day 7 line 2: Day 4 line 3
Day 7 line 5: Day 4 lines 1,2,4,9-13; Day 5 line 1; Day 6 lines 6-8
Day 10 line 2: Day 5 lines 12-14; Day 6 lines 1,2,4
Day 11 line 4: Day 3 lines 2,3,6-14
No match: Day 3 lines 4,5; Day 4 lines 5-8; Day 5 lines 2-11; Day 6 line 3

Eagle:
Day 7 line 2: Day 4 line 3
Day 7 line 5: Day 4 lines 9-11; Day 6 line 8
Day 7 line 8: Day 4 line 1
Day 8 line 1: Day 4 lines 12,13; Day 6 lines 6,7
Day 8 line 5: Day 4 lines 14,15; Day 6 line 5,9-12
Day 9 line 1: Day 3 lines 2,3
Day 9 line 2: Day 3 lines 6-14
Day 10 line 2: Day 6 lines 1,2,4
Day 11 line 1: Day 4 lines 5-8
No match: Day 3 lines 1,4,5; Day 6 line 3

Unfixable even by rescaling dark frames in azspec:
Eagle day 5 lines 1-14; Eagle day 4 lines 2,3