the 2009 collision was well documented and there are interesting reports online e.g. https://ntrs.nasa.gov/api/citations/20100002023/downloads/20100002023.pdf

the 2009 collision was well documented and there are interesting reports online e.g. https://ntrs.nasa.gov/api/citations/20100002023/downloads/20100002023.pdf https://ntrs.nasa.gov/api/citations/20100002023/downloads/20... which has a chart of apogee/perigee of debris. There seem to be examples of debris with _perigee_ above the collision altitude but the vast majority stayed beyond.