diff --git a/cereal b/cereal
index c579889f39..80a8eb8459 160000
--- a/cereal
+++ b/cereal
@@ -1 +1 @@
-Subproject commit c579889f396cd754048c7b1a51c6f33b1988762a
+Subproject commit 80a8eb84593feb08dfc0bd47e5c04e586ea4b7a6
diff --git a/system/ubloxd/generated/ubx.cpp b/system/ubloxd/generated/ubx.cpp
index 34fe1e52ca..81b82ccafc 100644
--- a/system/ubloxd/generated/ubx.cpp
+++ b/system/ubloxd/generated/ubx.cpp
@@ -40,6 +40,11 @@ void ubx_t::_read() {
         m_body = new rxm_sfrbx_t(m__io, this, m__root);
         break;
     }
+    case 309: {
+        n_body = false;
+        m_body = new nav_sat_t(m__io, this, m__root);
+        break;
+    }
     case 2571: {
         n_body = false;
         m_body = new mon_hw2_t(m__io, this, m__root);
@@ -70,9 +75,9 @@ void ubx_t::_clean_up() {
 ubx_t::rxm_rawx_t::rxm_rawx_t(kaitai::kstream* p__io, ubx_t* p__parent, ubx_t* p__root) : kaitai::kstruct(p__io) {
     m__parent = p__parent;
     m__root = p__root;
-    m_measurements = 0;
-    m__raw_measurements = 0;
-    m__io__raw_measurements = 0;
+    m_meas = 0;
+    m__raw_meas = 0;
+    m__io__raw_meas = 0;
 
     try {
         _read();
@@ -89,15 +94,15 @@ void ubx_t::rxm_rawx_t::_read() {
     m_num_meas = m__io->read_u1();
     m_rec_stat = m__io->read_u1();
     m_reserved1 = m__io->read_bytes(3);
-    m__raw_measurements = new std::vector<std::string>();
-    m__io__raw_measurements = new std::vector<kaitai::kstream*>();
-    m_measurements = new std::vector<meas_t*>();
-    const int l_measurements = num_meas();
-    for (int i = 0; i < l_measurements; i++) {
-        m__raw_measurements->push_back(m__io->read_bytes(32));
-        kaitai::kstream* io__raw_measurements = new kaitai::kstream(m__raw_measurements->at(m__raw_measurements->size() - 1));
-        m__io__raw_measurements->push_back(io__raw_measurements);
-        m_measurements->push_back(new meas_t(io__raw_measurements, this, m__root));
+    m__raw_meas = new std::vector<std::string>();
+    m__io__raw_meas = new std::vector<kaitai::kstream*>();
+    m_meas = new std::vector<measurement_t*>();
+    const int l_meas = num_meas();
+    for (int i = 0; i < l_meas; i++) {
+        m__raw_meas->push_back(m__io->read_bytes(32));
+        kaitai::kstream* io__raw_meas = new kaitai::kstream(m__raw_meas->at(m__raw_meas->size() - 1));
+        m__io__raw_meas->push_back(io__raw_meas);
+        m_meas->push_back(new measurement_t(io__raw_meas, this, m__root));
     }
 }
 
@@ -106,24 +111,24 @@ ubx_t::rxm_rawx_t::~rxm_rawx_t() {
 }
 
 void ubx_t::rxm_rawx_t::_clean_up() {
-    if (m__raw_measurements) {
-        delete m__raw_measurements; m__raw_measurements = 0;
+    if (m__raw_meas) {
+        delete m__raw_meas; m__raw_meas = 0;
     }
-    if (m__io__raw_measurements) {
-        for (std::vector<kaitai::kstream*>::iterator it = m__io__raw_measurements->begin(); it != m__io__raw_measurements->end(); ++it) {
+    if (m__io__raw_meas) {
+        for (std::vector<kaitai::kstream*>::iterator it = m__io__raw_meas->begin(); it != m__io__raw_meas->end(); ++it) {
             delete *it;
         }
-        delete m__io__raw_measurements; m__io__raw_measurements = 0;
+        delete m__io__raw_meas; m__io__raw_meas = 0;
     }
-    if (m_measurements) {
-        for (std::vector<meas_t*>::iterator it = m_measurements->begin(); it != m_measurements->end(); ++it) {
+    if (m_meas) {
+        for (std::vector<measurement_t*>::iterator it = m_meas->begin(); it != m_meas->end(); ++it) {
             delete *it;
         }
-        delete m_measurements; m_measurements = 0;
+        delete m_meas; m_meas = 0;
     }
 }
 
-ubx_t::rxm_rawx_t::meas_t::meas_t(kaitai::kstream* p__io, ubx_t::rxm_rawx_t* p__parent, ubx_t* p__root) : kaitai::kstruct(p__io) {
+ubx_t::rxm_rawx_t::measurement_t::measurement_t(kaitai::kstream* p__io, ubx_t::rxm_rawx_t* p__parent, ubx_t* p__root) : kaitai::kstruct(p__io) {
     m__parent = p__parent;
     m__root = p__root;
 
@@ -135,7 +140,7 @@ ubx_t::rxm_rawx_t::meas_t::meas_t(kaitai::kstream* p__io, ubx_t::rxm_rawx_t* p__
     }
 }
 
-void ubx_t::rxm_rawx_t::meas_t::_read() {
+void ubx_t::rxm_rawx_t::measurement_t::_read() {
     m_pr_mes = m__io->read_f8le();
     m_cp_mes = m__io->read_f8le();
     m_do_mes = m__io->read_f4le();
@@ -152,11 +157,11 @@ void ubx_t::rxm_rawx_t::meas_t::_read() {
     m_reserved3 = m__io->read_bytes(1);
 }
 
-ubx_t::rxm_rawx_t::meas_t::~meas_t() {
+ubx_t::rxm_rawx_t::measurement_t::~measurement_t() {
     _clean_up();
 }
 
-void ubx_t::rxm_rawx_t::meas_t::_clean_up() {
+void ubx_t::rxm_rawx_t::measurement_t::_clean_up() {
 }
 
 ubx_t::rxm_sfrbx_t::rxm_sfrbx_t(kaitai::kstream* p__io, ubx_t* p__parent, ubx_t* p__root) : kaitai::kstruct(p__io) {
@@ -198,6 +203,89 @@ void ubx_t::rxm_sfrbx_t::_clean_up() {
     }
 }
 
+ubx_t::nav_sat_t::nav_sat_t(kaitai::kstream* p__io, ubx_t* p__parent, ubx_t* p__root) : kaitai::kstruct(p__io) {
+    m__parent = p__parent;
+    m__root = p__root;
+    m_svs = 0;
+    m__raw_svs = 0;
+    m__io__raw_svs = 0;
+
+    try {
+        _read();
+    } catch(...) {
+        _clean_up();
+        throw;
+    }
+}
+
+void ubx_t::nav_sat_t::_read() {
+    m_itow = m__io->read_u4le();
+    m_version = m__io->read_u1();
+    m_num_svs = m__io->read_u1();
+    m_reserved = m__io->read_bytes(2);
+    m__raw_svs = new std::vector<std::string>();
+    m__io__raw_svs = new std::vector<kaitai::kstream*>();
+    m_svs = new std::vector<nav_t*>();
+    const int l_svs = num_svs();
+    for (int i = 0; i < l_svs; i++) {
+        m__raw_svs->push_back(m__io->read_bytes(12));
+        kaitai::kstream* io__raw_svs = new kaitai::kstream(m__raw_svs->at(m__raw_svs->size() - 1));
+        m__io__raw_svs->push_back(io__raw_svs);
+        m_svs->push_back(new nav_t(io__raw_svs, this, m__root));
+    }
+}
+
+ubx_t::nav_sat_t::~nav_sat_t() {
+    _clean_up();
+}
+
+void ubx_t::nav_sat_t::_clean_up() {
+    if (m__raw_svs) {
+        delete m__raw_svs; m__raw_svs = 0;
+    }
+    if (m__io__raw_svs) {
+        for (std::vector<kaitai::kstream*>::iterator it = m__io__raw_svs->begin(); it != m__io__raw_svs->end(); ++it) {
+            delete *it;
+        }
+        delete m__io__raw_svs; m__io__raw_svs = 0;
+    }
+    if (m_svs) {
+        for (std::vector<nav_t*>::iterator it = m_svs->begin(); it != m_svs->end(); ++it) {
+            delete *it;
+        }
+        delete m_svs; m_svs = 0;
+    }
+}
+
+ubx_t::nav_sat_t::nav_t::nav_t(kaitai::kstream* p__io, ubx_t::nav_sat_t* p__parent, ubx_t* p__root) : kaitai::kstruct(p__io) {
+    m__parent = p__parent;
+    m__root = p__root;
+
+    try {
+        _read();
+    } catch(...) {
+        _clean_up();
+        throw;
+    }
+}
+
+void ubx_t::nav_sat_t::nav_t::_read() {
+    m_gnss_id = static_cast<ubx_t::gnss_type_t>(m__io->read_u1());
+    m_sv_id = m__io->read_u1();
+    m_cno = m__io->read_u1();
+    m_elev = m__io->read_s1();
+    m_azim = m__io->read_s2le();
+    m_pr_res = m__io->read_s2le();
+    m_flags = m__io->read_u4le();
+}
+
+ubx_t::nav_sat_t::nav_t::~nav_t() {
+    _clean_up();
+}
+
+void ubx_t::nav_sat_t::nav_t::_clean_up() {
+}
+
 ubx_t::nav_pvt_t::nav_pvt_t(kaitai::kstream* p__io, ubx_t* p__parent, ubx_t* p__root) : kaitai::kstruct(p__io) {
     m__parent = p__parent;
     m__root = p__root;
diff --git a/system/ubloxd/generated/ubx.h b/system/ubloxd/generated/ubx.h
index 6be4ce8c4b..022108489f 100644
--- a/system/ubloxd/generated/ubx.h
+++ b/system/ubloxd/generated/ubx.h
@@ -16,6 +16,7 @@ class ubx_t : public kaitai::kstruct {
 public:
     class rxm_rawx_t;
     class rxm_sfrbx_t;
+    class nav_sat_t;
     class nav_pvt_t;
     class mon_hw2_t;
     class mon_hw_t;
@@ -42,7 +43,7 @@ public:
     class rxm_rawx_t : public kaitai::kstruct {
 
     public:
-        class meas_t;
+        class measurement_t;
 
         rxm_rawx_t(kaitai::kstream* p__io, ubx_t* p__parent = 0, ubx_t* p__root = 0);
 
@@ -53,18 +54,18 @@ public:
     public:
         ~rxm_rawx_t();
 
-        class meas_t : public kaitai::kstruct {
+        class measurement_t : public kaitai::kstruct {
 
         public:
 
-            meas_t(kaitai::kstream* p__io, ubx_t::rxm_rawx_t* p__parent = 0, ubx_t* p__root = 0);
+            measurement_t(kaitai::kstream* p__io, ubx_t::rxm_rawx_t* p__parent = 0, ubx_t* p__root = 0);
 
         private:
             void _read();
             void _clean_up();
 
         public:
-            ~meas_t();
+            ~measurement_t();
 
         private:
             double m_pr_mes;
@@ -110,11 +111,11 @@ public:
         uint8_t m_num_meas;
         uint8_t m_rec_stat;
         std::string m_reserved1;
-        std::vector<meas_t*>* m_measurements;
+        std::vector<measurement_t*>* m_meas;
         ubx_t* m__root;
         ubx_t* m__parent;
-        std::vector<std::string>* m__raw_measurements;
-        std::vector<kaitai::kstream*>* m__io__raw_measurements;
+        std::vector<std::string>* m__raw_meas;
+        std::vector<kaitai::kstream*>* m__io__raw_meas;
 
     public:
         double rcv_tow() const { return m_rcv_tow; }
@@ -123,11 +124,11 @@ public:
         uint8_t num_meas() const { return m_num_meas; }
         uint8_t rec_stat() const { return m_rec_stat; }
         std::string reserved1() const { return m_reserved1; }
-        std::vector<meas_t*>* measurements() const { return m_measurements; }
+        std::vector<measurement_t*>* meas() const { return m_meas; }
         ubx_t* _root() const { return m__root; }
         ubx_t* _parent() const { return m__parent; }
-        std::vector<std::string>* _raw_measurements() const { return m__raw_measurements; }
-        std::vector<kaitai::kstream*>* _io__raw_measurements() const { return m__io__raw_measurements; }
+        std::vector<std::string>* _raw_meas() const { return m__raw_meas; }
+        std::vector<kaitai::kstream*>* _io__raw_meas() const { return m__io__raw_meas; }
     };
 
     class rxm_sfrbx_t : public kaitai::kstruct {
@@ -170,6 +171,79 @@ public:
         ubx_t* _parent() const { return m__parent; }
     };
 
+    class nav_sat_t : public kaitai::kstruct {
+
+    public:
+        class nav_t;
+
+        nav_sat_t(kaitai::kstream* p__io, ubx_t* p__parent = 0, ubx_t* p__root = 0);
+
+    private:
+        void _read();
+        void _clean_up();
+
+    public:
+        ~nav_sat_t();
+
+        class nav_t : public kaitai::kstruct {
+
+        public:
+
+            nav_t(kaitai::kstream* p__io, ubx_t::nav_sat_t* p__parent = 0, ubx_t* p__root = 0);
+
+        private:
+            void _read();
+            void _clean_up();
+
+        public:
+            ~nav_t();
+
+        private:
+            gnss_type_t m_gnss_id;
+            uint8_t m_sv_id;
+            uint8_t m_cno;
+            int8_t m_elev;
+            int16_t m_azim;
+            int16_t m_pr_res;
+            uint32_t m_flags;
+            ubx_t* m__root;
+            ubx_t::nav_sat_t* m__parent;
+
+        public:
+            gnss_type_t gnss_id() const { return m_gnss_id; }
+            uint8_t sv_id() const { return m_sv_id; }
+            uint8_t cno() const { return m_cno; }
+            int8_t elev() const { return m_elev; }
+            int16_t azim() const { return m_azim; }
+            int16_t pr_res() const { return m_pr_res; }
+            uint32_t flags() const { return m_flags; }
+            ubx_t* _root() const { return m__root; }
+            ubx_t::nav_sat_t* _parent() const { return m__parent; }
+        };
+
+    private:
+        uint32_t m_itow;
+        uint8_t m_version;
+        uint8_t m_num_svs;
+        std::string m_reserved;
+        std::vector<nav_t*>* m_svs;
+        ubx_t* m__root;
+        ubx_t* m__parent;
+        std::vector<std::string>* m__raw_svs;
+        std::vector<kaitai::kstream*>* m__io__raw_svs;
+
+    public:
+        uint32_t itow() const { return m_itow; }
+        uint8_t version() const { return m_version; }
+        uint8_t num_svs() const { return m_num_svs; }
+        std::string reserved() const { return m_reserved; }
+        std::vector<nav_t*>* svs() const { return m_svs; }
+        ubx_t* _root() const { return m__root; }
+        ubx_t* _parent() const { return m__parent; }
+        std::vector<std::string>* _raw_svs() const { return m__raw_svs; }
+        std::vector<kaitai::kstream*>* _io__raw_svs() const { return m__io__raw_svs; }
+    };
+
     class nav_pvt_t : public kaitai::kstruct {
 
     public:
diff --git a/system/ubloxd/tests/ublox.py b/system/ubloxd/tests/ublox.py
index 80abc64e2c..0d271ad785 100644
--- a/system/ubloxd/tests/ublox.py
+++ b/system/ubloxd/tests/ublox.py
@@ -48,6 +48,7 @@ MSG_NAV_TIMEGPS = 0x20
 MSG_NAV_TIMEUTC = 0x21
 MSG_NAV_CLOCK = 0x22
 MSG_NAV_SVINFO = 0x30
+MSG_NAV_SAT = 0x35
 MSG_NAV_AOPSTATUS = 0x60
 MSG_NAV_DGPS = 0x31
 MSG_NAV_DOP = 0x04
diff --git a/system/ubloxd/ublox_msg.cc b/system/ubloxd/ublox_msg.cc
index 811492ba9b..a01187d560 100644
--- a/system/ubloxd/ublox_msg.cc
+++ b/system/ubloxd/ublox_msg.cc
@@ -434,7 +434,7 @@ kj::Array<capnp::word> UbloxMsgParser::gen_rxm_rawx(ubx_t::rxm_rawx_t *msg) {
   mr.setGpsWeek(msg->week());
 
   auto mb = mr.initMeasurements(msg->num_meas());
-  auto measurements = *msg->measurements();
+  auto measurements = *msg->meas();
   for(int8_t i = 0; i < msg->num_meas(); i++) {
     mb[i].setSvId(measurements[i]->sv_id());
     mb[i].setPseudorange(measurements[i]->pr_mes());
@@ -463,6 +463,22 @@ kj::Array<capnp::word> UbloxMsgParser::gen_rxm_rawx(ubx_t::rxm_rawx_t *msg) {
   return capnp::messageToFlatArray(msg_builder);
 }
 
+kj::Array<capnp::word> UbloxMsgParser::gen_nav_sat(ubx_t::nav_sat_t *msg) {
+  MessageBuilder msg_builder;
+  auto sr = msg_builder.initEvent().initUbloxGnss().initSatReport();
+  sr.setITow(msg->itow());
+
+  auto svs = sr.initSvs(msg->num_svs());
+  auto svs_data = *msg->svs();
+  for(int8_t i = 0; i < msg->num_svs(); i++) {
+    svs[i].setSvId(svs_data[i]->sv_id());
+    svs[i].setGnssId(svs_data[i]->gnss_id());
+    svs[i].setFlagsBitfield(svs_data[i]->flags());
+  }
+
+  return capnp::messageToFlatArray(msg_builder);
+}
+
 kj::Array<capnp::word> UbloxMsgParser::gen_mon_hw(ubx_t::mon_hw_t *msg) {
   MessageBuilder msg_builder;
   auto hwStatus = msg_builder.initEvent().initUbloxGnss().initHwStatus();
diff --git a/system/ubloxd/ublox_msg.h b/system/ubloxd/ublox_msg.h
index a6e0623aa0..a52a7db3e5 100644
--- a/system/ubloxd/ublox_msg.h
+++ b/system/ubloxd/ublox_msg.h
@@ -102,6 +102,7 @@ class UbloxMsgParser {
     kj::Array<capnp::word> gen_rxm_rawx(ubx_t::rxm_rawx_t *msg);
     kj::Array<capnp::word> gen_mon_hw(ubx_t::mon_hw_t *msg);
     kj::Array<capnp::word> gen_mon_hw2(ubx_t::mon_hw2_t *msg);
+    kj::Array<capnp::word> gen_nav_sat(ubx_t::nav_sat_t *msg);
 
   private:
     inline bool valid_cheksum();
diff --git a/system/ubloxd/ubx.ksy b/system/ubloxd/ubx.ksy
index 6945680d32..02c757fe71 100644
--- a/system/ubloxd/ubx.ksy
+++ b/system/ubloxd/ubx.ksy
@@ -17,6 +17,7 @@ seq:
         0x0215: rxm_rawx
         0x0a09: mon_hw
         0x0a0b: mon_hw2
+        0x0135: nav_sat
 instances:
   checksum:
     pos: length + 6
@@ -142,13 +143,13 @@ types:
         type: u1
       - id: reserved1
         size: 3
-      - id: measurements
-        type: meas
+      - id: meas
+        type: measurement
         size: 32
         repeat: expr
         repeat-expr: num_meas
     types:
-      meas:
+      measurement:
         seq:
           - id: pr_mes
             type: f8
@@ -179,6 +180,39 @@ types:
             type: u1
           - id: reserved3
             size: 1
+  nav_sat:
+    seq:
+      - id: itow
+        type: u4
+      - id: version
+        type: u1
+      - id: num_svs
+        type: u1
+      - id: reserved
+        size: 2
+      - id: svs
+        type: nav
+        size: 12
+        repeat: expr
+        repeat-expr: num_svs
+    types:
+      nav:
+        seq:
+          - id: gnss_id
+            type: u1
+            enum: gnss_type
+          - id: sv_id
+            type: u1
+          - id: cno
+            type: u1
+          - id: elev
+            type: s1
+          - id: azim
+            type: s2
+          - id: pr_res
+            type: s2
+          - id: flags
+            type: u4
 
   nav_pvt:
     seq: