diff --git a/ale/base/type_sensor.py b/ale/base/type_sensor.py
index 9d1450fb383410ed53aa13a5de00972d3dc26422..fbae1343f3752abf529711845cfbbb0eae3eba3a 100644
--- a/ale/base/type_sensor.py
+++ b/ale/base/type_sensor.py
@@ -194,3 +194,14 @@ class Radar():
         """
         raise NotImplementedError
 
+    @property
+    def range_conversion_times(self):
+        """
+        Returns the times associated with the range conversion coefficients
+
+        Returns
+        -------
+        : list
+          Times for the range conversion coefficients
+        """
+        raise NotImplementedError
diff --git a/ale/drivers/lro_drivers.py b/ale/drivers/lro_drivers.py
index 5faf020e1bbf985ea57f9a53303508e832fcba5b..a468b0491e79a6e23a7094deabdc1950a395b257 100644
--- a/ale/drivers/lro_drivers.py
+++ b/ale/drivers/lro_drivers.py
@@ -563,7 +563,7 @@ class LroMiniRfIsisLabelNaifSpiceDriver(Radar, NaifSpice, IsisLabel, Driver):
         : double
           scaled pixel width
         """
-        return self.label['IsisCube']['Instrument']['LineExposureDuration']; 
+        return self.label['IsisCube']['Instrument']['LineExposureDuration']
 
     @property
     def range_conversion_coefficients(self):
@@ -576,10 +576,27 @@ class LroMiniRfIsisLabelNaifSpiceDriver(Radar, NaifSpice, IsisLabel, Driver):
           range conversion coefficients
         """
 
-        range_coefficients_utc = self.label['IsisCube']['Instrument']['RangeCoefficientSet']; 
-        range_coefficients_et = [[spice.str2et(elt[0])] + elt[1:] for elt in range_coefficients_utc] 
+        range_coefficients_orig = self.label['IsisCube']['Instrument']['RangeCoefficientSet']
+
+        # The first elt of each list is time, which we handle separately in range_conversion_time
+        range_coefficients = [elt[1:] for elt in range_coefficients_orig] 
+        return range_coefficients
+
+    @property
+    def range_conversion_times(self):
+        """
+        Times, in et, associated with range conversion coefficients
+
+        Returns
+        -------
+        : List
+          times for range conversion coefficients
+        """
+        range_coefficients_utc = self.label['IsisCube']['Instrument']['RangeCoefficientSet']
+        range_coefficients_et = [spice.str2et(elt[0]) for elt in range_coefficients_utc]
         return range_coefficients_et
 
+
     @property
     def ephemeris_start_time(self):
         """
diff --git a/ale/formatters/usgscsm_formatter.py b/ale/formatters/usgscsm_formatter.py
index d395594beefdf0d8bc5d511001a85fc2c7973577..eb5c2439b7dfeeb4da3774a6cc7b88fae73eaece 100644
--- a/ale/formatters/usgscsm_formatter.py
+++ b/ale/formatters/usgscsm_formatter.py
@@ -161,6 +161,7 @@ def to_usgscsm(driver):
         isd_data['wavelength'] = driver.wavelength
         isd_data['line_exposure_duration'] = driver.line_exposure_duration
         isd_data['scaled_pixel_width'] = driver.scaled_pixel_width
+        isd_data['range_conversion_times'] = driver.range_conversion_times
         isd_data['range_conversion_coefficients'] = driver.range_conversion_coefficients
 
     # check that there is a valid sensor model name
diff --git a/tests/pytests/data/isds/lrominirf_isd.json b/tests/pytests/data/isds/lrominirf_isd.json
index 15d42dc2332ce0346cd2270455ef14c3a0ffc72f..0d06a060508bf96df9b3d7c0dcf30e91f3445a9a 100644
--- a/tests/pytests/data/isds/lrominirf_isd.json
+++ b/tests/pytests/data/isds/lrominirf_isd.json
@@ -10129,27 +10129,33 @@
   "wavelength": 0.12596322416750805,
   "line_exposure_duration": 0.004704421474,
   "scaled_pixel_width": 7.5,
+  "range_conversion_times": [ 3.25441417470548e+08,  3.25441439850548e+08, 3.25441454898548e+08,
+   3.25441469946548e+08,  3.25441484995548e+08, 3.25441500043548e+08,  3.25441515091548e+08, 
+   3.25441530140548e+08,  3.25441545188548e+08, 3.25441560236548e+08,  3.25441575284548e+08,
+   3.25441590333548e+08,  3.25441605381548e+08,  3.25441620429548e+08,  3.25441635477548e+08, 
+   3.25441650526548e+08,  3.25441665574548e+08,  3.25441680622548e+08,  3.25441695670548e+08,
+   3.25441718039548e+08],
   "range_conversion_coefficients": [
-   [ 3.25441417470548e+08, 7.99423808710000e+04, 6.92122900000000e-01, 3.40193700000000e-06, -2.39924200000000e-11],
-   [ 3.25441439850548e+08, 7.99423795700000e+04, 6.90795300000000e-01, 3.41377900000000e-06, -2.40431400000000e-11],
-   [ 3.25441454898548e+08, 7.99423784790000e+04, 6.89923300000000e-01, 3.42142300000000e-06, -2.40714100000000e-11],
-   [ 3.25441469946548e+08, 7.99423782970000e+04, 6.89091700000000e-01, 3.42877300000000e-06, -2.41021200000000e-11],
-   [ 3.25441484995548e+08, 7.99423774910000e+04, 6.88258400000000e-01, 3.43615000000000e-06, -2.41318800000000e-11],
-   [ 3.25441500043548e+08, 7.99423754720000e+04, 6.87466400000000e-01, 3.44310000000000e-06, -2.41596100000000e-11],
-   [ 3.25441515091548e+08, 7.99423758230000e+04, 6.86672900000000e-01, 3.45009800000000e-06, -2.41882400000000e-11],
-   [ 3.25441530140548e+08, 7.99423758680000e+04, 6.85920500000000e-01, 3.45672500000000e-06, -2.42163000000000e-11],
-   [ 3.25441545188548e+08, 7.99423737430000e+04, 6.85166800000000e-01, 3.46335100000000e-06, -2.42427900000000e-11],
-   [ 3.25441560236548e+08, 7.99423758150000e+04, 6.84453800000000e-01, 3.46968000000000e-06, -2.42686600000000e-11],
-   [ 3.25441575284548e+08, 7.99423733480000e+04, 6.83783000000000e-01, 3.47554900000000e-06, -2.42912800000000e-11],
-   [ 3.25441590333548e+08, 7.99423731540000e+04, 6.83111300000000e-01, 3.48141500000000e-06, -2.43158100000000e-11],
-   [ 3.25441605381548e+08, 7.99423745960000e+04, 6.82480900000000e-01, 3.48693900000000e-06, -2.43373700000000e-11],
-   [ 3.25441620429548e+08, 7.99423723580000e+04, 6.81849000000000e-01, 3.49252600000000e-06, -2.43599300000000e-11],
-   [ 3.25441635477548e+08, 7.99423734150000e+04, 6.81259600000000e-01, 3.49765400000000e-06, -2.43799400000000e-11],
-   [ 3.25441650526548e+08, 7.99423726230000e+04, 6.80711700000000e-01, 3.50247300000000e-06, -2.43988600000000e-11],
-   [ 3.25441665574548e+08, 7.99423708550000e+04, 6.80163500000000e-01, 3.50722300000000e-06, -2.44181200000000e-11],
-   [ 3.25441680622548e+08, 7.99423717720000e+04, 6.79614100000000e-01, 3.51201600000000e-06, -2.44370400000000e-11],
-   [ 3.25441695670548e+08, 7.99423706730000e+04, 6.79149600000000e-01, 3.51607500000000e-06, -2.44520600000000e-11],
-   [ 3.25441718039548e+08, 7.99423710670000e+04, 6.78430200000000e-01, 3.52233100000000e-06, -2.44771700000000e-11]
+   [7.99423808710000e+04, 6.92122900000000e-01, 3.40193700000000e-06, -2.39924200000000e-11],
+   [7.99423795700000e+04, 6.90795300000000e-01, 3.41377900000000e-06, -2.40431400000000e-11],
+   [7.99423784790000e+04, 6.89923300000000e-01, 3.42142300000000e-06, -2.40714100000000e-11],
+   [7.99423782970000e+04, 6.89091700000000e-01, 3.42877300000000e-06, -2.41021200000000e-11],
+   [7.99423774910000e+04, 6.88258400000000e-01, 3.43615000000000e-06, -2.41318800000000e-11],
+   [7.99423754720000e+04, 6.87466400000000e-01, 3.44310000000000e-06, -2.41596100000000e-11],
+   [7.99423758230000e+04, 6.86672900000000e-01, 3.45009800000000e-06, -2.41882400000000e-11],
+   [7.99423758680000e+04, 6.85920500000000e-01, 3.45672500000000e-06, -2.42163000000000e-11],
+   [7.99423737430000e+04, 6.85166800000000e-01, 3.46335100000000e-06, -2.42427900000000e-11],
+   [7.99423758150000e+04, 6.84453800000000e-01, 3.46968000000000e-06, -2.42686600000000e-11],
+   [7.99423733480000e+04, 6.83783000000000e-01, 3.47554900000000e-06, -2.42912800000000e-11],
+   [7.99423731540000e+04, 6.83111300000000e-01, 3.48141500000000e-06, -2.43158100000000e-11],
+   [7.99423745960000e+04, 6.82480900000000e-01, 3.48693900000000e-06, -2.43373700000000e-11],
+   [7.99423723580000e+04, 6.81849000000000e-01, 3.49252600000000e-06, -2.43599300000000e-11],
+   [7.99423734150000e+04, 6.81259600000000e-01, 3.49765400000000e-06, -2.43799400000000e-11],
+   [7.99423726230000e+04, 6.80711700000000e-01, 3.50247300000000e-06, -2.43988600000000e-11],
+   [7.99423708550000e+04, 6.80163500000000e-01, 3.50722300000000e-06, -2.44181200000000e-11],
+   [7.99423717720000e+04, 6.79614100000000e-01, 3.51201600000000e-06, -2.44370400000000e-11],
+   [7.99423706730000e+04, 6.79149600000000e-01, 3.51607500000000e-06, -2.44520600000000e-11],
+   [7.99423710670000e+04, 6.78430200000000e-01, 3.52233100000000e-06, -2.44771700000000e-11]
   ],
 "dt_ephemeris": 0.3013815733766745
 }