ID Name Orbit Incl.
98050A ASTRA 2A 57.2 4.93
09017A WGS F2 (USA 204) 57.5 0.01
14023B KAZSAT-3 58.5 0.02
12008A BEIDOU-2 G5 58.7 2.10
16053B INTELSAT 33E (IS-33E) 60.0 0.04 <-- 20+ debris components
19014A WGS 10 (USA 291) 60.3 0.01
04007A ABS-4 (MOBISAT-1) 61.0 3.86
10008A EWS-G2 (GOES 15) 61.5 0.04
19049B INTELSAT 39 (IS-39) 62.0 0.02
https://www.satsig.net/sslist.htmFrom Wikipedia, it looks like it's a USSF satellite launched in 2019 with a service life of 14 years. It provides wideband communications to DoD customers.
Disclaimer: this comes from playing a self-made orbital mechanics game, I have no training whatsoever let alone professional experience with this
Speeding up doesn't raise the orbit; it makes it (more) elliptical while still intersecting with the old orbit (shared with neighbouring satellites)- you need at least 2 maneuvers to raise an orbit. You're also assuming a perfectly pro-grade acceleration. In an explosion, different pieces go in different directions, I suspect there is a vector that results in faster speed in the same orbit, but I'm no rocket scientist.