GPS Time Disruptions on 26-Jan-2016

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GPS Time Disruptions on 26-Jan-2016. / Mujunen, Ari; Aatrokoski, Juha; Tornikoski, Merja; Tammi, Joni.

15 p. Aalto University. 2016, . (Aalto University publication series SCIENCE + TECHNOLOGY; Vol. 2016, No. 2).

Research output: Other contributionScientific

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Mujunen, Ari ; Aatrokoski, Juha ; Tornikoski, Merja ; Tammi, Joni. / GPS Time Disruptions on 26-Jan-2016. 2016. Aalto University. 15 p. (Aalto University publication series SCIENCE + TECHNOLOGY; 2).

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@misc{8376d9d39a1d472392e9e644a30142cb,
title = "GPS Time Disruptions on 26-Jan-2016",
abstract = "On Tuesday, January 26th 2016 Aalto University Mets{\"a}hovi Radio Observatory discovered that three out of its four GPS receivers on-site (used for monitoring the performance of four on-site hydrogen (H) maser atomic clocks) performed abrupt 13.0 microsecond time jumps in their {"}1pps{"} (one pulse per second) time synchronization outputs. The disruptions lasted for approximately 12 hours during which different GPS receiver units outputted erroneous time signal at different times, preventing their use for microsecond-level time synchronization. The event was later acknowledged by the 2nd Space Operations Squadron at the 50th Space Wing, Schriever Air Force Base, Colorado, USA, as an erroneous time correction parameter upload to GPS satellites.",
keywords = "radio astronomy, global positioning system, GPS, atomic clocks, timing, satellites, satellite navigation",
author = "Ari Mujunen and Juha Aatrokoski and Merja Tornikoski and Joni Tammi",
year = "2016",
language = "English",
series = "Aalto University publication series SCIENCE + TECHNOLOGY",
publisher = "Aalto University",
number = "2",
type = "Other",

}

RIS - Download

TY - GEN

T1 - GPS Time Disruptions on 26-Jan-2016

AU - Mujunen, Ari

AU - Aatrokoski, Juha

AU - Tornikoski, Merja

AU - Tammi, Joni

PY - 2016

Y1 - 2016

N2 - On Tuesday, January 26th 2016 Aalto University Metsähovi Radio Observatory discovered that three out of its four GPS receivers on-site (used for monitoring the performance of four on-site hydrogen (H) maser atomic clocks) performed abrupt 13.0 microsecond time jumps in their "1pps" (one pulse per second) time synchronization outputs. The disruptions lasted for approximately 12 hours during which different GPS receiver units outputted erroneous time signal at different times, preventing their use for microsecond-level time synchronization. The event was later acknowledged by the 2nd Space Operations Squadron at the 50th Space Wing, Schriever Air Force Base, Colorado, USA, as an erroneous time correction parameter upload to GPS satellites.

AB - On Tuesday, January 26th 2016 Aalto University Metsähovi Radio Observatory discovered that three out of its four GPS receivers on-site (used for monitoring the performance of four on-site hydrogen (H) maser atomic clocks) performed abrupt 13.0 microsecond time jumps in their "1pps" (one pulse per second) time synchronization outputs. The disruptions lasted for approximately 12 hours during which different GPS receiver units outputted erroneous time signal at different times, preventing their use for microsecond-level time synchronization. The event was later acknowledged by the 2nd Space Operations Squadron at the 50th Space Wing, Schriever Air Force Base, Colorado, USA, as an erroneous time correction parameter upload to GPS satellites.

KW - radio astronomy

KW - global positioning system

KW - GPS

KW - atomic clocks

KW - timing

KW - satellites

KW - satellite navigation

M3 - Other contribution

T3 - Aalto University publication series SCIENCE + TECHNOLOGY

PB - Aalto University

ER -

ID: 3282488