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Hi Rob,
Nice work. I expect the 530 Nm line is the FeII 5317 A line. The strength of FeII continues unabated - this is the phase Steve Shore calls "the iron curtain" phase, which hasn't lifted yet. Look at the strength of FeII 4924, for instance. Although in your spectrum this is closer to 490 Nm.
The line you have at 612Nm line could well be FeII at 6148. In fact, it's hard to see what else it could be. But there's a pattern here - these lines are showing up on your spectrum about 2 Nm blue of where they should be. That's pretty consistent with the sorts of velocities we've been seeing in the red and blue shift - up to 1500 km/s, which is 3 Nm at the wavelength of Ha. Calibration is a bit tricky - if you look at your Hb, it runs from about 482 at the blue end of the absorption line to 488 at the red end of the emission. Again, I suspect this is a bit blue of where it should be; I suspect it would be worth recalibrating. Maybe use the NaI at 5892 as a reference, and set that point towards the blue end of the emission line.
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