diff --git a/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/calc/GNSSCalcFilterService.java b/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/calc/GNSSCalcFilterService.java
index a3426704..8bb4ad51 100644
--- a/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/calc/GNSSCalcFilterService.java
+++ b/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/calc/GNSSCalcFilterService.java
@@ -253,11 +253,11 @@ public class GNSSCalcFilterService {
         LocalDateTime cmpTime = now.minusHours(groupCalc.getFilter_min_hour());
         QueryWrapper<GnssCalcData> queryWrapper = new QueryWrapper<>();
         queryWrapper.eq("deviceid", deviceId);
-        queryWrapper.le("createtime",cmpTime);
+        queryWrapper.ge("createtime",cmpTime);
         queryWrapper.eq("enabled",true);
-        queryWrapper.isNotNull("rpose");
+        queryWrapper.isNotNull("auxe");
         queryWrapper.last("limit 1");
-        queryWrapper.orderByDesc("createtime");
+        queryWrapper.orderByAsc("createtime");
         GnssCalcData gnssCalcData = repository.selectOne(queryWrapper);
 
         if (gnssCalcData != null) {