no, it's a different kind of jump

[rockeye_stonetoe]

The satellites, stations, and vessels surrounding Barrayar have plenty of chance to observe an intense burst of EM radiation leaning towards the low-frequency end of the spectrum, but including plenty of visible light.

After that it will take more sensitive scanners and cameras to detect an object on a very definitely sub-orbital trajectory. When it crashes to the planet, it seems to still be in one piece. Somehow.