⭐ SEP

Step 1: Background

bw bh

fw fh

Global: — RMS: —

Step 2: Extract

threshold (sigma) min area

deblend cont deblend nthresh

Step 3: Aperture Photometry

radius (pix) sky inner r

sky outer r

subpix0 (fast)5 (precise) gain

mag zeropoint

▶ Run Aperture

Step 4: Windowed Centroid

sigma (pix) subpix05

▶ Run Win

Step 5: Kron Radius

start r (pix)

▶ Run Kron

Step 6: Flux Radius

rmax (pix) n levels

flux fraction

▶ Run Flux Radius

Step 7: Set Ellipse

w (pix) h (pix)

a b

theta r

cx cy

▶ Draw Ellipse

▶ Run