This KenyonBromley-psc2_readme2022.txt file was generated on 20220325 by Scott J. Kenyon ------------------- GENERAL INFORMATION ------------------- 1. Dataset for: A Pluto-Charon Sonata IV. Improved Constraints on the Dynamical Behavior and Masses of the Small Satellites 2. Author Information Principal Investigator Contact Information Name: Scott J. Kenyon Institution: Smithsonian Astrophysical Observatory Address: 60 Garden Street, Cambridge, MA 02138 USA Email: skenyon@cfa.harvard.edu Associate or Co-investigator Contact Information Name: Benjamin C. Bromley Institution: Department of Physics & Astronomy, University of Utah Address: Email: 3. Date of data collection (single date, range, approximate date): 20190515 to 20220325 4. Geographic location of data collection (where was data collected?): 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 NNX17AE24G -------------------------- SHARING/ACCESS INFORMATION -------------------------- 1. Licenses/restrictions placed on the data: CC by NC 2. Links to publications that cite or use the data: Astronomical Journal, in press 3. Links to other publicly accessible locations of the data: none 4. Links/relationships to ancillary data sets: none 5. Was data derived from another source? If yes, list source(s): none 6. Recommended citation for the data: Kenyon, S. J. & Bromley, B. C., 2022 Datset for: A Pluto--Charon Sonata IV. Improved Constraints on the Dynamical Behavior and Masses of the Small Satellites, The Hive: University of Utah Research Data Repository. https://doi.org/10.7278/S50d-5g6f-yfc5 --------------------- DATA & FILE OVERVIEW --------------------- Files summarized in items 1-8 are binary output files from n-body simulations as described in Kenyon & Bromley 2022. Files described in item 9 are ascii txt. The C programs in items 10, 11, and 12 provide different ways to access the binary output. Each C program describes the architecture of the binary files. The files are in a tar archive named PCS4.tar 1. pcs4-0mmm-nnn[a-z] files: heavy satellites, mmm = 100 x mass factor for all satellites, nnn = number of Symplectic steps per PC orbit, a-z = version 2. pcs4-1mmm-nnn[a-z] files: light satellites, mmm = 100 x mass factor for all satellites, nnn = number of Symplectic steps per PC orbit, a-z = version 3. pcs4-2mmm-nnn[a-z] files: light satellites with 2x nominal mass of Styx & Kerberos, mmm = 100 x mass factor for all satellites, nnn = number of Symplectic steps per PC orbit, a-z = version 4. pcs4-3mmm-nnn[a-z] files: light satellites with 1.5x nominal mass of Styx & Kerberos, mmm = 100 x mass factor for all satellites, nnn = number of Symplectic steps per PC orbit, a-z = version 5. pcs4-4mmm-nnn[a-z] files: light satellites with 3x nominal mass of Styx & Kerberos, mmm = 100 x mass factor for all satellites, nnn = number of Symplectic steps per PC orbit, a-z = version 7. pcs4-6mmm light satellites, 40 Symplectic steps per PC orbit, mmm = 100 x mass factor for Nix only 8. pcs4-7mmm: light satellites, 40 Symplectic steps per PC orbit, mmm = 100 x mass factor for Hydra only 9. pcs4.dat: summary of lifetimes for each binary file 10. lifetime.c: summarizes lifetime and mass factor for binary file usage example: "lifetime pcs4-6110" 11. summary.c: generates basic summary of timesteps in a binary file usage example: "summary pcs1-0013d" 12. ext-ae.c: extracts (akep,ekep) for all satellites and outputs (akep, ekep) usage example: "ext-ae pcs1-6110" will output (akep, ekep) for PCSNKH 13. ext-xyz.c: extracts (x,y,z) for 4 satellites and outputs (x,y,z) usage example: "ext-xyz pcs1-6110 6" will output (x,y,z) for SNKH 14. estmcic.c: extracts (x,y,z) for 6 satellites and outputs (t,a,e,i,r-gc,e-free,rpmin,rpmax) usage example: "estmcirc pcs4-6110" will output info for file pcs4-6110 15. orbpars.f: takes output from estmcirc and builds time sequence for each small satellite usage example: "estmcirc pcs4-6110 | orbpars" creates four output files 16. mcirc.com: command script for estmcirc and orbpars usage example: "mcirc.com pcs4-6110" creates pcs4-6110x.dat where x = s,n,k,h 3. Additional related data collected that was not included in the current data package: There are other binary output files not included in this archive. 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 the dataset. The C programs 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: Appropriate software is included in directory. 4. Standards and calibration information, if appropriate: none 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: Scott Kenyon and Ben Bromley