diff --git a/include/gnss_utils/observations.h b/include/gnss_utils/observations.h
index 852b35d646caed9d0d7967d2181158bb68f3ee8f..db2efc751470a5d37c781c243747a4193058968c 100644
--- a/include/gnss_utils/observations.h
+++ b/include/gnss_utils/observations.h
@@ -5,7 +5,6 @@
 
 namespace GnssUtils
 {
-
 class Observations
 {
 public:
@@ -15,34 +14,26 @@ public:
   ~Observations();
 
   void clearObservations();
-
   void addObservation(const obsd_t& obs);
-  void
-  loadFromRinex(const std::string& rnx_file, gtime_t t_start, gtime_t t_end, double dt = 0.0, const char* opt = "");
-
   void removeObservationByIdx(const int& _idx);
   void removeObservationBySat(const int& _sat);
-
   std::vector<obsd_t>&       getObservations();
   const std::vector<obsd_t>& getObservations() const;
-
   obsd_t&       getObservationBySat(const unsigned char& sat_number);
   const obsd_t& getObservationBySat(const unsigned char& sat_number) const;
-
   obsd_t&       getObservationByIdx(const int& idx);
   const obsd_t& getObservationByIdx(const int& idx) const;
 
   obsd_t*       data();
   const obsd_t* data() const;
-
   size_t size() const;
 
   bool hasSatellite(const unsigned char& i) const;
 
   static void print(obsd_t& _obs);
-  void printBySat(const int& _sat);
-  void printByIdx(const int& _idx);
-  void print();
+  void        printBySat(const int& _sat);
+  void        printByIdx(const int& _idx);
+  void        print();
 
   // Filter observations
   std::set<int> filterByEphemeris(const SatellitesPositions& sats_pos);
@@ -50,38 +41,35 @@ public:
   std::set<int> filterByCode();
   std::set<int> filterByCarrierPhase();
   std::set<int> filterByConstellations(const int& navsys);
-  std::set<int> filterByElevationSnr(const Eigen::Vector3d& x_r,
+  std::set<int> filterByElevationSnr(const Eigen::Vector3d&     x_r,
                                      const SatellitesPositions& sats_pos,
-                                     const snrmask_t& snrmask,
-                                     const double& elmin);
-  std::set<int> filter(const SatellitesPositions&   sats_pos,
-                       const std::set<int>&         discarded_sats,
-                       const Eigen::Vector3d&       x_r,
-                       const bool&                  check_code,
-                       const bool&                  check_carrier_phase,
-                       const prcopt_t&              opt);
-  std::set<int> filter(const SatellitesPositions&   sats_pos,
-                       const std::set<int>&         discarded_sats,
-                       const Eigen::Vector3d&       x_r,
-                       const bool&                  check_code,
-                       const bool&                  check_carrier_phase,
-                       const int&                   navsys,
-                       const snrmask_t&             snrmask,
-                       const double&                elmin);
-
-  static std::set<int> findCommonObservations(const Observations& obs_1,
-                                              const Observations& obs_2);
+                                     const snrmask_t&           snrmask,
+                                     const double&              elmin);
+  std::set<int> filter(const SatellitesPositions& sats_pos,
+                       const std::set<int>&       discarded_sats,
+                       const Eigen::Vector3d&     x_r,
+                       const bool&                check_code,
+                       const bool&                check_carrier_phase,
+                       const prcopt_t&            opt);
+  std::set<int> filter(const SatellitesPositions& sats_pos,
+                       const std::set<int>&       discarded_sats,
+                       const Eigen::Vector3d&     x_r,
+                       const bool&                check_code,
+                       const bool&                check_carrier_phase,
+                       const int&                 navsys,
+                       const snrmask_t&           snrmask,
+                       const double&              elmin);
+
+  static std::set<int> findCommonObservations(const Observations& obs_1, const Observations& obs_2);
 
   bool operator==(const Observations& other_obs) const;
-  bool operator !=(const Observations &other_obs) const;
+  bool operator!=(const Observations& other_obs) const;
 
 private:
   // Private objects
   std::map<unsigned char, int> sat_2_idx_;  //< key: corresponding sat number, value: idx in obs_ vector
   std::vector<unsigned char>   idx_2_sat_;  //< key: idx in obs_ vector, value: corresponding sat number
   std::vector<obsd_t>          obs_;        //< vector of RTKLIB observations for a given epoch
-
-  // Private methods
 };
 
 }  // namespace GnssUtils
@@ -92,7 +80,6 @@ private:
 
 namespace GnssUtils
 {
-
 inline const std::vector<obsd_t>& Observations::getObservations() const
 {
   return this->obs_;
@@ -147,9 +134,9 @@ inline bool Observations::hasSatellite(const unsigned char& i) const
   return sat_2_idx_.count(i) != 0;
 }
 
-inline bool Observations::operator !=(const Observations &other_obs) const
+inline bool Observations::operator!=(const Observations& other_obs) const
 {
-    return !(*this == other_obs);
+  return !(*this == other_obs);
 }
 
 }  // namespace GnssUtils
diff --git a/src/observations.cpp b/src/observations.cpp
index 0ca80fd9e9612ec569a9e295375a40cbb3e76748..a90ea7084d576746ccf7fb1ba746447fcc6af09a 100644
--- a/src/observations.cpp
+++ b/src/observations.cpp
@@ -74,41 +74,6 @@ void Observations::addObservation(const obsd_t& obs)
   assert(sat_2_idx_.size() == obs_.size());
 }
 
-void Observations::loadFromRinex(const std::string& rnx_file,
-                                 gtime_t            t_start,
-                                 gtime_t            t_end,
-                                 double             dt,
-                                 const char*        opt)
-{
-  obs_t obs;
-  obs.data = (obsd_t*)malloc(sizeof(obsd_t) * MAXSAT);
-  obs.n    = 0;
-  obs.nmax = MAXSAT;
-
-  // const char* opt = "";
-  auto stat = readrnxt(rnx_file.c_str(), 1, t_start, t_end, dt, opt, &obs, NULL, NULL);
-  if (stat == 1)
-    sortobs(&obs);
-  else
-  {
-    std::cout << "Observation: couldn't load provided observation file, reason: " << (stat == 0 ? "no data" : "error") << stat << std::endl;
-    return;
-  }
-
-  for (int i = 0; i < obs.n; i++)
-  {
-    // std::cout << "time: " << time_str(obs.data[i].time, 3) <<  " | sat: " << int(obs.data[i].sat) << " | rcv: " <<
-    // int(obs.data[i].rcv) <<
-    //           " | SNR: " << int(obs.data[i].SNR[0]) << " | LLI: " << int(obs.data[i].LLI[0]) << " | code: " <<
-    //           int(obs.data[i].code[0]) <<
-    //             " | L: " << obs.data[i].L[0] <<  " | P: " << obs.data[i].P[0] << " | D: " << obs.data[i].D[0] <<
-    //             std::endl;
-    addObservation(obs.data[i]);
-  }
-
-  free(obs.data);
-}
-
 void Observations::removeObservationByIdx(const int& _idx)
 {
   // std::cout << "removing observation of idx " << _idx << std::endl;