To: SLR Stations Fm: GFZ Orbit Prediction System Op: Automatic Generation DSIDP GRCB.ORB.PRD DRAG FUNCTION A 021221 IRV SET 021221 EPHEM NO 490 SATELLITE 8004 MAXEPOCH 1 EPOCH 1084.5 DRAG FRCO 0.0 63.9 2.0 NMAX 20