Some phase 3 jensen tomograms have smaller nz value than the mrc file actually contains.

[anchi2c]

This will require a vaiidation by checking the file size according to the data mode and then modify the header nz to make it correct.

Some examples I found are

• Both in dataset 10397 and should be (121,3710,3838)
  s3://cryoetportal-rawdatasets-dev/GJensen_full/aba2013-08-30-22/rawdata/A413tCoover0022.mrc shape zyx: (61,3710,3838)
  s3://cryoetportal-rawdatasets-dev/GJensen_full/aba2013-09-11-7/rawdata/A413Tatlas2fourtydegreemin0015.mrc shape zyx: (21,3710,3838)