Dear Donner et al,

Thank you for submitting the authors' response as well as the revised version. Below please find my minor comments.

Minor comments:

1) Page 4, line 28: Please remove comma after “Others, “.

2) Page 5, line 8: The newly added text “The horizontal line corresponds to the …..” is out of context here. Please move this statement to the figure caption of Fig.2.

3) Page 5, line 18: Add comma between “Others” and “however”

4) Page 12, line 20: Please remove “even” from “The PANDORA systems even ….” as tracking sun is the characteristic of the instrument.

5) Page 14, line 13: Please remove “also” in “Further, also differences …”.

6) Page 16, line 13: Please replace “Like explained” by “As explained”.

7) Page 20, line 17: The statement “Finally, the sun scans were described” is unnecessary; please, delete it.

8) Page 20, line 31: You may want to change “ the (systematical) error” to “the systematic error”.

9) Page 21, lines 30-31: Revise this statement “Consistent results were found … and also here…”. It may be a good idea to split the statement into two sentences.

10) Page 22, line 12: The sentence (the new text) is incomplete. Please revise.

11) Page 22, line 28: Please replace “Finally, sun scans were described and explained. Here” by “ As discussed in Sect. 3.6”

12) Page 22, lines 34-35. The last part (“and the rather high complexity”) of this statement is unclear. Please, revise the statement.

13) Page 32, Table 5 caption: Please replace “Columns 4 and 5 resume” by “Columns 4 and 5 list”.

14) Page 36, Figure 4: The text says “The obtained center of mass is indicated by the blue dashed line”, but I have problem to locate the blue dashed line in the figure. Please, check. Also, “For the explanation of the specific shape ….” is unnecessary as including figure is the sole idea.

15) Page 47, Figure 15 caption: Please replace “25 %” by “25th“ and “75 %” by “75th“ as you spell percentiles after those numbers.

16) Page 54, Table A1: Typo for “and” in 4th row and 2nd column. Suggest cut “(good an worse ones)”. Revise the statement for the 2nd part of 6th row and 3rd column “If only good ..” for clarity.

17) Page 55, Table A2: Typo for “than” in 4th row and 3rd column (“longer that” should be “longer than”). Please cut “out” in its last sentence as it is unnecessary.