diff --git a/ObservationSim/Astrometry/Astrometry_util.py b/ObservationSim/Astrometry/Astrometry_util.py
index 7787e6847f081a0d6e61537f12cc3ea31a3f5885..58f5fd0a5c2d759a02975af88ff57f6b9add67be 100644
--- a/ObservationSim/Astrometry/Astrometry_util.py
+++ b/ObservationSim/Astrometry/Astrometry_util.py
@@ -111,7 +111,8 @@ def on_orbit_obs_position(input_ra_list, input_dec_list, input_pmra_list, input_
         input_dec = c_double(input_dec_list[i])
         input_pmra = c_double(input_pmra_list[i])
         input_pmdec = c_double(input_pmdec_list[i])
-        input_rv = c_double(input_rv_list[i] * 3600.) # Convert from km/s to km/h
+        # input_rv = c_double(input_rv_list[i] * 3600.) # Convert from km/s to km/h
+        input_rv = c_double(input_rv_list[i])
         input_parallax = c_double(input_parallax_list[i])
         p3 = d3(input_x, input_y, input_z)
         v3 = d3(input_vx, input_vy, input_vz)
diff --git a/ObservationSim/Instrument/Chip/Chip.py b/ObservationSim/Instrument/Chip/Chip.py
index 69d0c1038919febec2958d8e3bb1b5893b1dca3d..5265d265e795f35476c96ebd5308256e23ef4309 100755
--- a/ObservationSim/Instrument/Chip/Chip.py
+++ b/ObservationSim/Instrument/Chip/Chip.py
@@ -719,7 +719,7 @@ class Chip(FocalPlane):
             if config["ins_effects"]["add_bias"] == True:
                 biaslevel = self.bias_level
                 overscan = biaslevel-2
-            elif config["ins_effects"]["add_bias"] == True:
+            elif config["ins_effects"]["add_bias"] == False:
                 biaslevel = 0
                 overscan = 0
             for i in range(NDark):