1 INTRODUCTION

2 DESI CATALOGS

3 INTRINSIC ALIGNMENT SIGNAL

4 IA WITH ABACUS MOCK CATALOG

5 MODELING ALIGNMENT - $\xi_{2}$ CORRELATION

6 MODELING DESI'S SELECTION EFFECTS

7 ESTIMATE OF FALSE RSD SIGNATURE  $\xi_{\mathbf{GI}}$   IN DESI

8  $\xi_{\mathbf{GI}}$   ESTIMATE IN ABACUS

9 CONCLUSION