Bob Nelson's O-C Database

Bob Nelson’s O-C data base is a unique resource to all eclipsing star observers.  For many years, Bob collected the observations and updated the workbooks on his own.  In the last several years I joined him in this work.  I have just completed the 2023 workbook updates and they are now available on the South West Research Institute website (http://binaries.boulder.swri.edu/omc/), and soon will be on the AAVSO site too. 

I have no idea how Bob managed to do the workload on his own for so many years.  It took me most of January to complete the workbooks updates.  I am looking for some people to assist in keeping this database alive.  It is important that more than one person is working on the project not only to spread the load but to ensure more than one person knows what needs to be done – succession planning (I am 72 yo). 

The tasks include:

• Trawling through Journals to collect new O-C observations;
• Collating the observations;
• Annually (at this stage) adding the new data to each workbook in the database;
• Undertaking analysis of the data as required.

If you are interested in assisting with this work, please contact me at robynnabara@ozemail.com.au.  Note I live in South Australia so allow for the time zone difference when waiting for a reply.

Robert Jenkins