Describe COVERAGE.TXT here.
COVERAGE.TXT is a standard ICQ shape model that uses the 4th column (the albedo) to denote how many maplets fall in that position of the shape model.
It is created by shape_coverage. This was created for the DART mission and as a key component of trimmer
64
0.19642 0.29511 0.21410 0.10000
0.20138 0.28727 0.21679 0.10000
0.20622 0.27929 0.21925 0.10000
....
0.38080 -0.18030 0.07062 0.40000
0.38301 -0.17005 0.07147 0.30000
0.38576 -0.16025 0.07250 0.40000
0.38848 -0.15046 0.07351 0.40000
0.39107 -0.14067 0.07448 0.50000
0.39338 -0.13083 0.07540 0.70000
0.39500 -0.12085 0.07609 0.70000
0.39594 -0.11075 0.07665 0.50000
0.39693 -0.10065 0.07731 0.60000
0.39801 -0.09056 0.07798 0.90000
0.39864 -0.08066 0.07856 1.00000
0.39942 -0.07078 0.07917 1.00000
0.40064 -0.06098 0.07988 1.00000
0.40139 -0.05115 0.08049 0.90000
0.40109 -0.04135 0.08092 0.70000
0.40073 -0.03154 0.08134 0.90000
0.40088 -0.02179 0.08192 0.90000
0.40115 -0.01205 0.08254 1.00000
0.40156 -0.00228 0.08348 1.00000
0.40165 0.00748 0.08431 1.00000
0.40082 0.01716 0.08488 1.00000
0.39969 0.02683 0.08533 0.90000
0.39886 0.03643 0.08571 0.90000
0.39789 0.04601 0.08603 1.00000
0.39636 0.05550 0.08604 1.00000
0.39367 0.06477 0.08560 1.00000