Confirming the Detection of two WHIM Systems along the Line of Sight to
  1ES 1553+113
  We present a re-analysis, with newly acquired atomic data, of the two
detections of two highly ionized intervening OVII absorbers reported by
Nicastro and collaborators (2018). We confirm both intervening Warm-Hot
Intergalactic Medium OVII detections, and revise statistical significance and
physical parameters of the absorber at $z=0.4339$ in light of its partial
contamination by Galactic interstellar medium NII K$\alpha$ absorption.
