diff --git a/.gitignore b/.gitignore
index 81e9340fad5ab1eb0ea38f42907716685ef71c6d..a75e9e511e399ad7905845c33c77106ddbf51132 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,11 @@ build/
 dist/
 .VSCodeCounter/
 __pycache__/
+# added by Dongwei Fan
+.DS_Store
+*.pyd
+*.pkl
+!survey_sim/strategies/data/skyMap_Init.pkl
+survey_sim/cython_function/fast_interpolate.c
+survey_sim/satOrbit/locate_sat_cy.c
+#
\ No newline at end of file
diff --git a/config/config_surveysim_fdw.yaml b/config/config_surveysim_fdw.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..ca4fc348e40496a1588ad1c7d81a5ae09ce43ca1
--- /dev/null
+++ b/config/config_surveysim_fdw.yaml
@@ -0,0 +1,32 @@
+out_path_param:
+  wokr_dir: D:/Projects/CSST/dev/csst-planning/upload/sim/output  # define the folder of output file
+  out_filename_prefix: test_2461876_1 # output file prefix, 3 files: prefix_plan.json, prefix_info.dat, prefix_log.log
+
+# input_survey_data ---- whether to use input survey data; if yes, set the file name (including path), otherwise set null
+input_survey_data: null
+# input_survey_data: /Users/zhangxin/Work/SurveyPlan/CSST_Survey/csst-msc-c11-sls-v1_W5.json  # optional
+
+outdata_param:
+  dataset: version-1.0
+  obs_group: o1
+  sub_mod: OM1-1
+sim_param:
+  # start_time: 2461876.0
+  # end_time: 2462581.0
+  start_time: 2459812.0
+  end_time: 2459812.05
+  bettery_level: 97200
+  sky_map: null  # sky status file
+  sci_data_start_id: 0
+calib_seting:
+  mutil_out: YES
+  inner_calib_id_start: 0
+  inner_calib_year: NO 
+  inner_calib_year_file: {2022: "D:/Projects/CSST/dev/csst-planning/upload/sim/output/calibration_config/internal-cal-split.json"}
+  inner_calib_saa: NO
+  inner_calib_saa_file: "D:/Projects/CSST/dev/csst-planning/upload/sim/output/calibration_config/saa-bias.json"
+  calib_starField_setting: 
+    calib_enable: NO
+    calib_time: [[2459812.1, 2459813.1]]
+    calib_cat_file: ['D:/Projects/CSST/dev/csst-planning/upload/sim/output/calibration_config/photflat-5x5grid_pointings/']
+
diff --git a/run_survey_sim.py b/run_survey_sim.py
index 3fbbd5faad59b0fd3eb8aa0c82a0cab5d4613042..cb11b07f3c8160c596bb3842984b73d6da283be5 100644
--- a/run_survey_sim.py
+++ b/run_survey_sim.py
@@ -134,11 +134,24 @@ def addSkyList_inputRADEC(radecs):
 
 
 if __name__ == '__main__':
+    current_dir = os.path.dirname(os.path.abspath(__file__))
+    print("current_dir", current_dir)
     if len(sys.argv) < 2:
         print("Error: input parameter error, must be : config file name")
+        config_file = os.path.join(
+            current_dir, "config", "config_surveysim_fdw.yaml")
+    else:
+        config_file = sys.argv[1]
+        if not os.path.isabs(config_file):
+            config_file = os.path.join(current_dir, config_file)
+
+    if not os.path.exists(config_file):
+        print("Error: config file not found, config file: ", config_file)
+        exit(1)
 
-    with open(sys.argv[1], "r") as f:
+    with open(config_file, "r") as f:
         config_data = yaml.safe_load(f)
+        print(config_data)
     # config_fn = Path(sys.argv[1])
     # with config_fn.open("r", encoding="utf-8") as f:
     #     config_data = json.load(f)
diff --git a/survey_sim/surveyStat/data/areaStat.dll b/survey_sim/surveyStat/data/areaStat.dll
new file mode 100644
index 0000000000000000000000000000000000000000..631e3d2a9ef004a5f264e1e4716bc3c1c43a69b2
Binary files /dev/null and b/survey_sim/surveyStat/data/areaStat.dll differ