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For WASP-121b, we find amplitudes of 1771 $\\pm$ 95 ppm (3.6 $\\mu$m) and 2048 $\\pm$ 109 ppm (4.5 $\\mu$m), and near-zero offsets of -0.78 $\\pm$ 1.87$^{\\circ}$ (3.6 $\\mu$m) and 0.42 $\\pm$ 1.74$^{\\circ}$ (4.5 $\\mu$m), consistent within 2.2$\\sigma$ and 1.3$\\sigma$, respectively, with JWST NIRSpec results. 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