Here are my last spectral observations of this interesting object, first, my last LISA observation (14Apr18):

Please note that in my last LISA observations, I incorrectly noted high H-gamma activity. This is the HG line identified on this spectrum. As usual, all non-balmer lines are tentative spectral species.
Here is an animation I made from the LihiresIII h-alpha data taken between 18 and 28 April 2018:

Finally here are two spectra made around H-Beta(29Apr18) and the O1(27Apr18) lines:


Let me know if this look strange?
James
James R. Foster
Lhires III (2400/1800/600 ln/mm Grat) Spectroscope,
LISA IR/Visual Spectroscope (IR Configured Presently)
Alpy 600 with Guide/Calibration modules and Photometric slit
Star Analyzer 200