From b8d1624727f2e38f5eee85db01fc80cb241ff0c9 Mon Sep 17 00:00:00 2001
From: fangyuedong <fangyuedong@qxslab.cn>
Date: Wed, 24 Jul 2024 21:25:02 +0800
Subject: [PATCH] fix a typo in add_poisson_and_dark

---
 observation_sim/sim_steps/add_pattern_noise.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/observation_sim/sim_steps/add_pattern_noise.py b/observation_sim/sim_steps/add_pattern_noise.py
index dfe90d0..f92cf36 100644
--- a/observation_sim/sim_steps/add_pattern_noise.py
+++ b/observation_sim/sim_steps/add_pattern_noise.py
@@ -27,7 +27,7 @@ def add_poisson_and_dark(self, chip, filt, tel, pointing, catalog, obs_param):
                                              InputDark=None)
     else:
         chip.img, _ = chip_utils.add_poisson(img=chip.img,
-                                             chip=self,
+                                             chip=chip,
                                              exptime=exptime,
                                              poisson_noise=chip.poisson_noise,
                                              dark_noise=0.)
-- 
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