diff --git a/log.capnp b/log.capnp
index f7992a7aa..d793b68ab 100644
--- a/log.capnp
+++ b/log.capnp
@@ -1228,6 +1228,7 @@ struct UbloxGnss {
     ionoData @2 :IonoData;
     hwStatus @3 :HwStatus;
     hwStatus2 @4 :HwStatus2;
+    glonassEphemeris @5 :GlonassEphemeris;
   }
 
   struct MeasurementReport {
@@ -1337,7 +1338,6 @@ struct UbloxGnss {
     ionoCoeffsValid @37 :Bool;
     ionoAlpha @38 :List(Float64);
     ionoBeta @39 :List(Float64);
-
   }
 
   struct IonoData {
@@ -1392,6 +1392,44 @@ struct UbloxGnss {
       flash @4;
     }
   }
+
+  struct GlonassEphemeris {
+    svId @0 :UInt16;
+    year @1 :UInt16;
+    dayInYear @2 :UInt16;
+    hour @3 :UInt16;
+    minute @4 :UInt16;
+    second @5 :Float32;
+
+    x @6 :Float64;
+    xVel @7 :Float64;
+    xAccel @8 :Float64;
+    y @9 :Float64;
+    yVel @10 :Float64;
+    yAccel @11 :Float64;
+    z @12 :Float64;
+    zVel @13 :Float64;
+    zAccel @14 :Float64;
+
+    svType @15 :UInt8;
+    svURA @16 :Float32;
+    age @17 :UInt8;
+
+    svHealth @18 :UInt8;
+    tk @19 :UInt16;
+    tb @20 :UInt16;
+
+    tauN @21 :Float64;
+    deltaTauN @22 :Float64;
+    gammaN @23 :Float64;
+
+    p1 @24 :UInt8;
+    p2 @25 :UInt8;
+    p3 @26 :UInt8;
+    p4 @27 :UInt8;
+
+    freqNum @28 :UInt32;
+  }
 }
 
 struct QcomGnss @0xde94674b07ae51c1 {