#Utc time vs gps time pdf

Some links on this page lead to content in the Portable Document Format (PDF) and may require you to install PDF software.TAI time is maintained by the Bureau International des Poids et Mesures (BIPM). Our GPS Accuracy page provides more information about real-world GPS performance. Nevertheless, there was no violation of the UTC offset error assertions in the SPS PS for receivers that honor the UTC offset data set fit interval. For several hours, multiple satellites broadcast information regarding the offset between GPS time and UTC in a manner that did not conform to the GPS signal interface specification. On January 25-26, 2016, GPS users experienced a rare anomaly in operations. Quarterly GPS performance analysis (PAN) reports.Real-time plots of GPS SPS position dilution of precision (PDOP).The Federal Aviation Administration publishes additional data on GPS performance as monitored by the ground reference network of the Wide Area Augmentation System (WAAS). 2013 GPS SPS performance analysis (2.4 MB PDF).2014 GPS SPS performance analysis (4.9 MB PDF).2015 GPS SPS performance analysis (4.3 MB PDF).2016 GPS SPS performance analysis (3.9 MB PDF).2017 GPS SPS performance analysis (4.3 MB PDF).2018 GPS SPS performance analysis (3.9 MB PDF).2019 GPS SPS performance analysis (4 MB PDF).'not eval.' means 'See report for more information' ≤ 30 nsec Time Transfer error 95% of the time ≤ 13 m 95% Vertical error, global average ≤ 8 m 95% Horizontal error, global average ≥ 90% Vertical Service Availability, worst-case locationģ.8.3 Position/ Velocity/Time Service Accuracy ≥ 90% Horizontal Service Availability, worst-case location ≥ 99% Vertical Service Availability, average location ≥ 99% Horizontal Service Availability, average location ≥ 0:95 Probability that the constellation will have at least 24 operational satel- lites regardless of whether those operational satellites are located in slots or not ≥ 0.99999 Probability that at least 20 slots out of the 24 slots will be occupied by a satellite (or pair of satellites for expanded slots) broadcasting a healthy SF C/A-Code SPS SIS ≥ 0.98 Probability that at least 21 slots out of the 24 slots will be occupied by a satellite (or pair of satellites for expanded slots) broadcasting a healthy SF C/A-Code SPS SIS ≥ 0.957 Probability that (a.) a slot in the baseline 24-slot will be occupied by a satellite broadcasting a healthy SF C/A-Code SPS SIS, or (b.) a slot in the expanded configuration will be occupied by a pair of satellites each broadcasting a healthy SF C/A-Code SPS SIS ≥ 0.9998 Probability over any hour of not losing the SPS SIS availability from the slot due to unscheduled interruptionĪppropriate NANU issued at least 48 hours prior to a scheduled event for 95% of the events ≤ 1×10 −8 Fraction of Time When the SPS SIS Instantaneous URE from Two or More Satellites Exceeds the NTE Tolerance Due to a Common Cause Without a Timely Alert (P const)ģ.6.1 SIS Continuity - Unscheduled Failure Interruptions ≤ 1×10 −5 Fraction of Time When the SPS SIS Instantaneous URE Exceeds the NTE Tolerance Without a Timely Alert (P sat) ≤ 1×10 −5 Probability over any hour of exceeding the NTE tolerance without a timely alert during normal operationsģ.5.5 SIS Instantaneous P sat and P const ≤ 1×10 −5 Probability over any hour of exceeding the NTE tolerance without a timely alert ≤ 30 nsec 95% Global Statistic UTCOE during normal operations at any AOD ≤ 0.002 m/s 2 95% Global Statistic URAE during normal operations at any AOD ≤ 0.006 m/s 95% Global Statistic URRE during normal operations at any AOD ≤ 2.0 m 95% Global Statistic URE during normal operations over all AODs for the ensemble of constellation slots ≤ 388 m 95% Global Statistic URE during extended operations after 14 days without upload ≤ 30 m 99.79% Worst case single point Statistic URE during normal operations ≤ 30 m 99.94% Global Statistic URE during normal operations ≤ 9.7 m 95% Global Statistic URE during normal operations at any AOD ≤ 3.8 m 95% Global Statistic URE during normal operations at zero AOD

≤ 7.0 m 95% Global Statistic URE during normal operations over all AODs ← Drag table to scroll → Document Sectionġ00% Coverage of Terrestrial Service Volume

Utc time vs gps time