This MER_Vazov_crater fault_calculations_final_Readme.txt file was generated on 2021-04-01 by David L Pegg

GENERAL INFORMATION

1. Title of Dataset: MER_Vazov_crater_fault_calculations

This contains the calculations used to produce an average dip of a fault surface observed on Mercury, it will be published in Planetary and Space Science.

2. Author Information
	A. Principal Investigator Contact Information
		Name: David L. Pegg
		Institution: The Open University
		Email: David.L.Pegg@Open.ac.uk

	B. Co-investigator Contact Information
		Name: David A. Rothery
		Institution: The Open University
		Email: David.Rothery@open.ac.uk

	C. Alternate Contact Information
		Name: Susan J. Conway
		Institution: CNRS

	D. Co-investigator Contact Information
		Name: Matt R. Balme
		Institution: The Open University

2. Date of data collection:
Calculations completed by 2020-07-20

4. Geographic location of data collection:
Planet Mercury, 147°E, -65.5°S “Vazov” Crater


5. Information about funding sources that supported the collection of the data: 

David Pegg was funded by the UK Science and Technology Facilities Council (STFC) under grant ST/R504993/1, and the Open University’s Space Research Area. DAR and MJB receive support from European Commission Grant 776276 (Planmap) for Mercury mapping. SJC is grateful for financial support from the French Space Agency CNES for her BepiColombo work. The authors declare no conflicts of interest 


SHARING/ACCESS INFORMATION

1. Licenses/restrictions placed on the data: 
CC BY 4.0

2. Links to publications that cite or use the data: 
This is linked to a paper “A Fault Surface Exposed on Mercury” submitted to Planetary and Space Science.


5. Was data derived from another source?
This data was produced through shadow measurements completed on image data: 
EN0246250635M, EN0261431434M, they were both captured by NASA’s MESSENGER Spacecraft 
The image data can be retrieved from:
https://pds-imaging.jpl.nasa.gov/volumes/mess.html
or
https://ode.rsl.wustl.edu/mercury/index.aspx


DATA & FILE OVERVIEW

1. File List: 
MER_Vazov_crater fault_calculations_final.xls


METHODOLOGICAL INFORMATION

1. Description of methods used for collection/generation of data: 
This data was produced by analysing shadow lengths of the two images EN0246250635M, EN0261431434M in ArcGIS 10.8. Each Measurement was tabulated in this document, this document contains the step by step mathematical processing and then averaging out of the repeat measurements 

2. Methods for processing the data: 
This data is processed using simple trigonometry calculations. The calculations are fully described in Pegg et al. “A Fault Surface Exposed on Mercury” submitted to Planetary and Space Science.

3. Instrument- or software-specific information needed to interpret the data: 
Microsoft Excel 2003 onwards

6. Describe any quality-assurance procedures performed on the data: 
There are 10 repeat measurements for each image, which are then averaged out.

DATA-SPECIFIC INFORMATION FOR: MER_Vazov_crater fault_calculations_final.xls

Sheet: Final Calcs:

1. Number of variables: 4:
Image no - the image ID used for that measurement
Image resolution - meters/pixel
X measure - The horizontal distance from fault strike
Shadow length – The horizontal length of shadow between the end of X measure and the wall of the volcano (shadow origin)
Incidence angle – the angle of the Sun from vertical when image was captured
Emission angle – not used (images captured are nadir pointing)

2. Number of cases/rows: 
13/21 (main calculations) and 3/16 (statistics table)