According to Flightaware, it was filed TRUKN2 SYRAH JSICA Q130 PNH MDANO VKTRY2
Here's the TRUKN2 departure, note the right turn to TYDYE:
The textual description is:
TAKEOFF RUNWAYS 1L, 1R: Climb heading 014° to 520, thenright turn direct TYDYE, cross TYDYE at or above 3000, then ontrack 043° to TRUKN. Thence on (transition). Maintain FL190. Expect filed altitude10 minutes after departure.
The track shows them turning left, producing roughly a 291°magnetic track (nearly parallel with runways 28L/R, which are at 284°) before ATC turns them back to the north.
NOTE: the track shown here is in true heading - that area is about 14°E Magnetic variation, thus the roughly 291° magnetic track.
According to the audio, the crew stated to ATC they were "on the TRUKN."
The initial left turn to a 291 track doesn't make sense when compared to any published SID if runway 1R was selected. GAPP7 would be a left turn, but only to intercept the SFO 350 radial, and they would have blown right through that with that aggressive an intercept angle. SSTIK5 would also have them turn left after reaching 520' but then direct SSTIK, which is a flyover waypoint and is well to the north of where they ended up. The other 1L/R SIDs are a right turn. The track does also not align directly with any runway 28L/R waypoint (WESLA, GNNRR, KYNNG, or NORMM), but comes close to the initial 284° (runway) heading, which those waypoints would be on if the aircraft had departed 28L or 28R.
However, it isn't immediately clear what stopped the aircraft briefly on this track - it could have been whatever was feeding the autopilot, but could just as well have been briefly stopped when the instruction came from ATC to turn back to the north and they were in the process of reversing the turn (it was only on that heading for about 7-10 seconds). This is only to caution that as far as we know, the left turn may have continued if ATC had not intervened.
