Anti-symmetric clustering signals in the observed power spectrum

In this paper, we study how to directly measure the effect of peculiar velocities in observed angular power spectra. We do by constructing a new anti-symmetric estimator Large Scale Structure using different dark matter tracers. show that Doppler term is major component our and can it with signal-to-noise ratio up $\sim 50$ futuristic SKAO HI galaxy survey. demonstrate utility provide constraints on Euler equation.