remove extra time steps from comet orbit test

tests/test_comet_orbit.cpp

@@ -69,7 +69,7 @@ static void print_parent_changes(const std::vector<ParentChange>& parent_changes
 TEST_CASE("Comet orbital elements and SOI transitions during Mars encounter", "[comet][orbital-elements][soi]") {
     const double TIME_STEP = 60.0;
     const double SECONDS_PER_DAY = 86400.0;
-    const double DAYS_TO_SIMULATE = 5000.0;
+    const double DAYS_TO_SIMULATE = 1700.0;
     const double AU = 1.496e11;
 
 #if COMET_TEST_VERBOSE_OUTPUT
@@ -97,7 +97,7 @@ TEST_CASE("Comet orbital elements and SOI transitions during Mars encounter", "[
     );
     snapshots.push_back(initial);
 
-    double checkpoint_days[] = {0, 365, 722, 1444, 1533, 1600, 1700, 2000, 5000};
+    double checkpoint_days[] = {0, 365, 722, 1444, 1533, 1600, 1700};
     size_t next_checkpoint = 1;
 
     double max_time = DAYS_TO_SIMULATE * SECONDS_PER_DAY;