This KENYON_readme20250129.txt file was generated on 20250129 by Kaylee Alexander ------------------- GENERAL INFORMATION ------------------- 1. Title of Dataset A Pluto-Charon Sonata V. Long-term Stability of the HST State Vector 2. Author Information Principal Investigator Contact Information Name: Scott J. Kenyon Institution: Smithsonian Astrophysical Observatory Address: 60 Garden St, Cambridge, MA 02138 Email: skenyon@cfa.harvard.edu ORCID: 0000-0003-0214-609X Associate or Co-investigator Contact Information Name: Benjamin C. Bromley Institution: University of Utah, Dept. of Physics and Astronomy Address: 115 S 1400 E Rm 201, Salt Lake City, UT 84124 Email: ben.bromley@utah.edu ORCID: 0000-0001-7558-343X 3. Date of data collection (single date, range, approximate date) 20220326 to 20250117 4. Geographic location of data collection (where was data collected?): Greenbelt, Maryland (NASA Discover Computer at the National Center for Climate Simulation) 5. Information about funding sources that supported the collection of the data: NASA Emerging World Program Grant 80NSSC23K0252 -------------------------- SHARING/ACCESS INFORMATION -------------------------- 1. Licenses/restrictions placed on the data: CC BY NC - Allows others to use and share your data non-commercially and with attribution. 2. Links to publications that cite or use the data: Astronomical Journal (article in press) 3. Links to other publicly accessible locations of the data: NA 4. Links/relationships to ancillary data sets: NA 5. Was data derived from another source? No 6. Recommended citation for the data: Kenyon, Scott J., and Benjamin C. Bromley. 2025. "A Pluto-Charon Sonata V. Long-term Stability of the HST State Vector." The Hive: University of Utah Research Data Repository. https://doi.org/10.7278/S5d-0fwz-1gny. --------------------- DATA & FILE OVERVIEW --------------------- 1. File List A. Filename: 20250129_pcs5a_KenyonBromley.tar B. Filename: 20250129_pcs5b_KenyonBromley.tar C. Filename: 20250129_pcs5c_KenyonBromley.tar D. Filename: 20250129_pcs5d_KenyonBromley.tar E. Filename: 20250129_pcs5e_KenyonBromley.tar F. Filename: 20250129_pcs5f_KenyonBromley.tar G. Filename: 20250129_pcs5g_KenyonBromley.tar H. Filename: 20250129_pcs5h_KenyonBromley.tar 2. Description: Files summarized in items 1-8 are binary output files from n-body simulations as described in Kenyon & Bromley 2022, Astronomical Journal, Volume 163, Issue 5, id.238. Codes to access the binary output are provided in that paper and associated file archive. The tar archives here are named pcs5[a-h].tar where a-h is a unique designator; these eight archives contain binary files with the following naming conventions: pcs5-1mmm-nn[a-z] files: light satellites pcs5-2mmm-nn[a-z] files: light satellites with 2x nominal mass of Styx & Kerberos pcs5-3mmm-nn[a-z] files: light satellites with 1.5x nominal mass of Styx & Kerberos pcs5-4mmm-nn[a-z] files: light satellites with 3x nominal mass of Styx & Kerberos In this file name scheme, mmm = 100 x mass factor for all satellites, nn = number of 6th-order symplectic time-steps per PC binary orbits, and a-z = version. 3. Relationship between files: None; tar archives expand to separate files as described above. 4. Additional related data collected that was not included in the current data package: NA 4. Are there multiple versions of the dataset? No -------------------------- METHODOLOGICAL INFORMATION -------------------------- 1. Description of methods used for collection/generation of data: The data were generated by computer simulations using the C++ code "Orchestra", a proprietary hybrid code that follows the dynamical evolution of solids and gas orbiting a central object. Algorithms in the code are described in the following papers (author names abbreviated to B for Bromley, K for Kenyon, and L for Jane X Luu along with a year for publication date, AJ = Astronomical Journal, ApJ = Astrophysical Journal, S=Supplement): KL1998, AJ 115:2136; KL1999, AJ 118:1101; KB2001,AJ 121:538; KB2002,AJ 123:1757; KB2004, AJ 127:513; BK2006, AJ 131:2737; KB2006, AJ 131:1837; KB2008, ApJS 179:451; KB2010, ApJS 188:242; BK2011, ApJ 731:101; KB2012, AJ 143:63; KB2014, AJ 147:8. Initial conditions for these simulations described in the published paper. 2. Methods for processing the data: Various C and fortran programs are used to analyze the data for the calculations. Several C programs needed to extract information from the computer generated binary output files are included with earlier dataset at this URL: https://doi.org/10.7278/S50d-5g6f-yfc5. The C programs therein include basic summaries of the structure of the data files and the usage to extract data from each binary file. 3. Instrument- or software-specific information needed to interpret the data: Files can be accessed with open-source software provided in doi.org/10.7278/S50d-5g6f-yfc5. 4. Standards and calibration information, if appropriate: NA 5. Environmental/experimental conditions: All calculations were run on the NASA discover cluster at the National Center for Climiate Simulation 6. Describe any quality-assurance procedures performed on the data: Aside from tests summarized in the papers described in item 1, test calculations are summarized in the Appendix of each paper and compared to an appropriate benchmark. 7. People involved with sample collection, processing, analysis and/or submission: NA ----------------------------------------- DATA-SPECIFIC INFORMATION FOR: 20250129_pcs5[X]_KenyonBromley.tar ----------------------------------------- 1. Number of variables: 16 2. Number of cases/rows: 275 cases, variable rows 3. Variable List A. Name: m Description: total mass in grams (g) B. Name: mg Description: mass in gas C. Name: mrho Description: mass * rho where rho is mass density in grams**2 / cm**3 D. Name: r Description: radius (cm) E. Name: L Description: luminosity (erg/s) F. Name: a Description: semimajor axis = a (cm) G. Name: x Description: x position (cm) H. Name: y Description: y position (cm) I. Name: z Description: z position (cm) J. Name: vx Description: x component of velocity (cm/s) K. Name: vy Description: y component of velocity (cm/s) L. Name: vz Description: z component of velocity (cm/s) M. Name: dadt or a Description: change of semi major axis (cm/s) or semi major axis (cm) N. Name: ecc Description: eccentricity O. Name: incl Description: inclination (radians) P. Name: dmdi or m Description: change in mass (g/s) or mass (g) 4. Missing data codes: NA 5. Specialized formats of other abbreviations used: NA