Yesterday evening, two days after launch, it was briefly clear in Leiden. With scattered clouds in the sky (see the streaks in the upper right corner of the image) I shot the above image of Metop-B passing through Lyra (brightest star is Vega).
A very faint second trail can be seen near the right end of the brighter MetOp-B trail, going obliquely upwards. This is an old Russian r/b (1982-096B) from the 1982 launch of Kosmos 1410.
MetOp-B's older sister ship, MetOp-A, is known among amateurs for producing bright flares (up to mag. -2) when the solar panels reflect sunlight to the observer (see my video here). Hopefully MetOp-B will show this spectacular behaviour as well.
In addition to MetOp-B, the short observation window amidst the clouds also permitted to observe FIA Radar 2 (2012-014A).