diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..567609b
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+build/
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4000f2a..149156f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,7 +5,11 @@ if (POLICY CMP0054)
     cmake_policy(SET CMP0054 NEW)
 endif()
 
-set(CMAKE_CXX_STANDARD 11)
+if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
+    set(CMAKE_INSTALL_PREFIX "${CMAKE_BINARY_DIR}/install" CACHE PATH "..." FORCE)
+endif()
+
+set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_CXX_EXTENSIONS OFF)
 
diff --git a/libsgp4/CMakeLists.txt b/libsgp4/CMakeLists.txt
index b816645..f70d73b 100644
--- a/libsgp4/CMakeLists.txt
+++ b/libsgp4/CMakeLists.txt
@@ -38,4 +38,4 @@ set(SRCS
 add_library(sgp4 STATIC ${SRCS} ${INCS})
 add_library(sgp4s SHARED ${SRCS} ${INCS})
 install( TARGETS sgp4s LIBRARY DESTINATION lib )
-install( FILES ${INCS} DESTINATION include/SGP4 )
+install( FILES ${INCS} DESTINATION include/libsgp4 )
diff --git a/libsgp4/CoordGeodetic.h b/libsgp4/CoordGeodetic.h
index 9dbb789..8007168 100644
--- a/libsgp4/CoordGeodetic.h
+++ b/libsgp4/CoordGeodetic.h
@@ -37,12 +37,7 @@ public:
     /**
      * Default constructor
      */
-    CoordGeodetic()
-        : latitude(0.0),
-        longitude(0.0),
-        altitude(0.0)
-    {
-    }
+    CoordGeodetic() = default;
 
     /**
      * Constructor
@@ -111,11 +106,11 @@ public:
     }
 
     /** latitude in radians (-PI >= latitude < PI) */
-    double latitude;
+    double latitude{};
     /** latitude in radians (-PI/2 >= latitude <= PI/2) */
-    double longitude;
+    double longitude{};
     /** altitude in kilometers */
-    double altitude;
+    double altitude{};
 };
 
 /**
diff --git a/libsgp4/CoordTopocentric.h b/libsgp4/CoordTopocentric.h
index 8d9e2a9..f70b8fe 100644
--- a/libsgp4/CoordTopocentric.h
+++ b/libsgp4/CoordTopocentric.h
@@ -39,13 +39,7 @@ public:
     /**
      * Default constructor
      */
-    CoordTopocentric()
-        : azimuth(0.0)
-        , elevation(0.0)
-        , range(0.0)
-        , range_rate(0.0)
-    {
-    }
+    CoordTopocentric() = default;
 
     /**
      * Constructor
@@ -110,13 +104,13 @@ public:
     }
 
     /** azimuth in radians */
-    double azimuth;
+    double azimuth{};
     /** elevations in radians */
-    double elevation;
+    double elevation{};
     /** range in kilometers */
-    double range;
+    double range{};
     /** range rate in kilometers per second */
-    double range_rate;
+    double range_rate{};
 };
 
 
diff --git a/libsgp4/DateTime.h b/libsgp4/DateTime.h
index 68982d9..7005ba6 100644
--- a/libsgp4/DateTime.h
+++ b/libsgp4/DateTime.h
@@ -61,7 +61,7 @@ public:
      * Constructor
      * @param[in] ticks raw tick value
      */
-    DateTime(int64_t ticks)
+    explicit DateTime(int64_t ticks)
         : m_encoded(ticks)
     {
     }
@@ -450,7 +450,7 @@ public:
 
     DateTime AddMicroseconds(const double microseconds) const
     {
-        int64_t ticks = static_cast<int64_t>(microseconds * TicksPerMicrosecond);
+        auto ticks = static_cast<int64_t>(microseconds * TicksPerMicrosecond);
         return AddTicks(ticks);
     }
 
@@ -603,7 +603,7 @@ public:
      */
     double ToJulian() const
     {
-        TimeSpan ts = TimeSpan(Ticks());
+        auto ts = TimeSpan(Ticks());
         return ts.TotalDays() + 1721425.5;
     }
 
@@ -665,7 +665,7 @@ public:
     }
 
 private:
-    int64_t m_encoded;
+    int64_t m_encoded{};
 };
 
 inline std::ostream& operator<<(std::ostream& strm, const DateTime& dt)
diff --git a/libsgp4/Observer.h b/libsgp4/Observer.h
index df889f7..89387e8 100644
--- a/libsgp4/Observer.h
+++ b/libsgp4/Observer.h
@@ -50,7 +50,7 @@ public:
      * Constructor
      * @param[in] geo the observers position
      */
-    Observer(const CoordGeodetic &geo)
+    explicit Observer(const CoordGeodetic &geo)
         : m_geo(geo)
         , m_eci(DateTime(), geo)
     {
diff --git a/libsgp4/OrbitalElements.h b/libsgp4/OrbitalElements.h
index 4b7847d..9ce389a 100644
--- a/libsgp4/OrbitalElements.h
+++ b/libsgp4/OrbitalElements.h
@@ -31,7 +31,7 @@ class Tle;
 class OrbitalElements
 {
 public:
-    OrbitalElements(const Tle& tle);
+    explicit OrbitalElements(const Tle& tle);
 
     /*
      * XMO
diff --git a/libsgp4/SGP4.h b/libsgp4/SGP4.h
index 274d393..e67aa1f 100644
--- a/libsgp4/SGP4.h
+++ b/libsgp4/SGP4.h
@@ -38,7 +38,7 @@ namespace libsgp4
 class SGP4
 {
 public:
-    SGP4(const Tle& tle)
+    explicit SGP4(const Tle& tle)
         : elements_(tle)
     {
         Initialise();
diff --git a/libsgp4/SatelliteException.h b/libsgp4/SatelliteException.h
index 0905b04..900947a 100644
--- a/libsgp4/SatelliteException.h
+++ b/libsgp4/SatelliteException.h
@@ -29,7 +29,7 @@ namespace libsgp4
 class SatelliteException : public std::runtime_error
 {
 public:
-    SatelliteException(const char* message)
+    explicit SatelliteException(const char* message)
         : runtime_error(message)
     {
     }
diff --git a/libsgp4/SolarPosition.h b/libsgp4/SolarPosition.h
index c8cb105..7e19c19 100644
--- a/libsgp4/SolarPosition.h
+++ b/libsgp4/SolarPosition.h
@@ -29,9 +29,7 @@ namespace libsgp4
 class SolarPosition
 {
 public:
-    SolarPosition()
-    {
-    }
+    SolarPosition() = default;
 
     Eci FindPosition(const DateTime& dt);
 
diff --git a/libsgp4/TimeSpan.h b/libsgp4/TimeSpan.h
index 5190182..0bfdcdb 100644
--- a/libsgp4/TimeSpan.h
+++ b/libsgp4/TimeSpan.h
@@ -21,7 +21,7 @@
 #include <sstream>
 #include <iomanip>
 #include <cmath>
-#include <stdint.h>
+#include <cstdint>
 
 namespace libsgp4
 {
@@ -53,7 +53,7 @@ namespace
 class TimeSpan
 {
 public:
-    TimeSpan(int64_t ticks)
+    explicit TimeSpan(int64_t ticks)
         : m_ticks(ticks)
     {
     }
@@ -197,7 +197,7 @@ public:
     }
 
 private:
-    int64_t m_ticks;
+    int64_t m_ticks{};
 
     void CalculateTicks(int days,
             int hours,
diff --git a/libsgp4/Tle.cc b/libsgp4/Tle.cc
index 2616039..c74aaa3 100644
--- a/libsgp4/Tle.cc
+++ b/libsgp4/Tle.cc
@@ -146,9 +146,13 @@ void Tle::Initialize()
                 TLE2_LEN_REVATEPOCH), orbit_number_);
     
     if (year < 57)
+    {
         year += 2000;
+    }
     else
+    {
         year += 1900;
+    }
 
     epoch_ = DateTime(year, day);
 }
@@ -174,18 +178,18 @@ void Tle::ExtractInteger(const std::string& str, unsigned int& val)
     bool found_digit = false;
     unsigned int temp = 0;
 
-    for (std::string::const_iterator i = str.begin(); i != str.end(); ++i)
+    for (auto& i : str)
     {
-        if (isdigit(*i))
+        if (isdigit(i))
         {
             found_digit = true;
-            temp = (temp * 10) + static_cast<unsigned int>(*i - '0');
+            temp = (temp * 10) + static_cast<unsigned int>(i - '0');
         }
         else if (found_digit)
         {
             throw TleException("Unexpected non digit");
         }
-        else if (*i != ' ')
+        else if (i != ' ')
         {
             throw TleException("Invalid character");
         }
diff --git a/libsgp4/Tle.h b/libsgp4/Tle.h
index b39dd63..a822a40 100644
--- a/libsgp4/Tle.h
+++ b/libsgp4/Tle.h
@@ -37,10 +37,9 @@ public:
      * @param[in] line_one Tle line one
      * @param[in] line_two Tle line two
      */
-    Tle(const std::string& line_one,
-            const std::string& line_two)
-        : line_one_(line_one)
-        , line_two_(line_two)
+    Tle(std::string line_one, std::string line_two)
+        : line_one_(std::move(line_one))
+        , line_two_(std::move(line_two))
     {
         Initialize();
     }
@@ -51,12 +50,10 @@ public:
      * @param[in] line_one Tle line one
      * @param[in] line_two Tle line two
      */
-    Tle(const std::string& name,
-            const std::string& line_one,
-            const std::string& line_two)
-        : name_(name)
-        , line_one_(line_one)
-        , line_two_(line_two)
+    Tle(std::string name, std::string line_one, std::string line_two)
+        : name_(std::move(name))
+        , line_one_(std::move(line_one))
+        , line_two_(std::move(line_two))
     {
         Initialize();
     }
@@ -319,17 +316,17 @@ private:
 
     std::string int_designator_;
     DateTime epoch_;
-    double mean_motion_dt2_;
-    double mean_motion_ddt6_;
-    double bstar_;
-    double inclination_;
-    double right_ascending_node_;
-    double eccentricity_;
-    double argument_perigee_;
-    double mean_anomaly_;
-    double mean_motion_;
-    unsigned int norad_number_;
-    unsigned int orbit_number_;
+    double mean_motion_dt2_{};
+    double mean_motion_ddt6_{};
+    double bstar_{};
+    double inclination_{};
+    double right_ascending_node_{};
+    double eccentricity_{};
+    double argument_perigee_{};
+    double mean_anomaly_{};
+    double mean_motion_{};
+    unsigned int norad_number_{};
+    unsigned int orbit_number_{};
 
     static const unsigned int TLE_LEN_LINE_DATA = 69;
     static const unsigned int TLE_LEN_LINE_NAME = 22;
diff --git a/libsgp4/TleException.h b/libsgp4/TleException.h
index ba5f39f..1caf6d0 100644
--- a/libsgp4/TleException.h
+++ b/libsgp4/TleException.h
@@ -35,7 +35,7 @@ public:
      * Constructor
      * @param message Exception message
      */
-    TleException(const char* message)
+    explicit TleException(const char* message)
         : runtime_error(message)
     {
     }
diff --git a/libsgp4/Util.cc b/libsgp4/Util.cc
index 47f1546..3437aab 100644
--- a/libsgp4/Util.cc
+++ b/libsgp4/Util.cc
@@ -21,30 +21,17 @@
 #include <locale>
 #include <functional>
 
-namespace libsgp4
+namespace libsgp4::Util
 {
-namespace Util
-{
-    namespace
-    {
-        struct IsDigit: std::unary_function<char, bool>
-        {
-            bool operator()(char c) const
-            {
-                return std::isdigit(c, std::locale::classic()) == 0;
-            }
-        };
-    }
-
     void TrimLeft(std::string& s)
     {
         s.erase(s.begin(),
-                std::find_if(s.begin(), s.end(), std::not1(IsDigit())));
+                std::find_if(s.begin(), s.end(), [](unsigned char c){ return std::isgraph(c) != 0; }));
     }
 
     void TrimRight(std::string& s)
     {
-        s.erase(std::find_if(s.rbegin(), s.rend(), std::not1(IsDigit())).base(),
+        s.erase(std::find_if(s.rbegin(), s.rend(), [](unsigned char c){ return std::isgraph(c) != 0; }).base(),
                 s.end());
     }
 
@@ -53,5 +40,4 @@ namespace Util
         TrimLeft(s);
         TrimRight(s);
     }
-} // namespace Util
-} // namespace libsgp4
+} // namespace libsgp4::Util
diff --git a/libsgp4/Vector.h b/libsgp4/Vector.h
index 5129129..40856e5 100644
--- a/libsgp4/Vector.h
+++ b/libsgp4/Vector.h
@@ -37,10 +37,7 @@ public:
     /**
      * Default constructor
      */
-    Vector()
-        : x(0.0), y(0.0), z(0.0), w(0.0)
-    {
-    }
+    Vector() = default;
 
     /**
      * Constructor
@@ -51,7 +48,7 @@ public:
     Vector(const double arg_x,
             const double arg_y,
             const double arg_z)
-        : x(arg_x), y(arg_y), z(arg_z), w(0.0)
+        : x(arg_x), y(arg_y), z(arg_z)
     {
     }
 
@@ -69,7 +66,7 @@ public:
         : x(arg_x), y(arg_y), z(arg_z), w(arg_w)
     {
     }
-    
+
     /**
      * Copy constructor
      * @param v value to copy from
@@ -146,13 +143,13 @@ public:
     }
 
     /** x value */
-    double x;
+    double x{};
     /** y value */
-    double y;
+    double y{};
     /** z value */
-    double z;
+    double z{};
     /** w value */
-    double w;
+    double w{};
 };
 
 inline std::ostream& operator<<(std::ostream& strm, const Vector& v)