Data for Constraints on Inner Core Composition from Seismic Anisotropy: the importance of light elements and Nickel

Differential PKP travel time measurements from combined global datasets. Columns are organised as: 1. Event date 2. Station name 3. Event latitude 4. Event longitude 5. Event depth (km) 6. Station latitude 7. Station longitude 8. Inner core boundary pierce latitude 1 9. Inner core boundary pierce longitude 1 10. Inner core boundary pierce latitude 2 11. Inner core boundary pierce longitude 2 12. Turning point latitude 13. Turning point longitude 14. Turning point depth (km) 15. Differential PKPab-df travel time (s. 0 if not measured) 16. Differential PKPbc-df travel time (s. 0 if not measured) 17. Angle of inner core path relative to rotation axis (degrees) 18. Publication where data was originally published 19. Time in IC 20. Source-receiver Distance (degrees) 21. Source-receiver Azimuth (degrees) 22. Source-receiver Back-azimuth (degrees)