Kepler should have a rogues' gallery of unusual behaviour.

[christinahedges]

The gallery should include

EPIC 212285811

Credit: Hugh Osborn (tweet)
Shows cross talk from a bright moving object causing a negative flux source to move over the target.

EPIC 201736342

Credit: Ryan Ridden-Harper
Shows a moving object going through a stationary point close to a K2 target.

EPIC 201562141

Credit: @christinahedges
Shows cross talk from a bright star on a nearby channel right beside a beautiful galaxy.

[barentsen]

Additional rogues' gallery candidates:

• EPIC211741417 in C16 shows extreme rolling bands around BKJD 3307-3310 (cf. https://twitter.com/exohugh/status/1044234436009750528 ).
• KOI 6.01 = KIC 3248033 is a false positive planet due to a nearby EB (KOI 1759.01 = KIC 3248019) which is 4 pixels away.
• KOI 8.01 = KIC 5903312 is also a false positive planet due to an EB (KOI 3692.01 = KIC 5903301) about 2 pixels away.

[JeffLCoughlin]

KOIs 2233.01 and 2769.01 are great examples of the "column-anomaly" / charge-transfer inefficiency mechanism of FP contamination. Unlike all other contamination mechanisms which show an offset in the difference images, these have no offset. However, the difference image is too point-like, i.e., the central brightest pixel of the star shows all the contamination, and no (or very little) contamination is seen in fainter pixels.

This one should be showing up more in K2 than it did in Kepler as well due to cumulative CCD degradation and increased charge-transfer inefficiency.

[barentsen]

A pathological case of a nearby resolved EB inducing periodic "flares" in its (Eleanor) light curve: TIC 327996093