Micro Semi model MHM-2010, serial no: 0100000345 installed Aug 23, 2018.
Plots for 2019: 1pps vs CNS_GPS |
New MSM maser vs GPS for 2019. |
SigmaTau Adjustments and events in 2019
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MicroSemi Adjustments and events in 2019
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Plots for 2018: 1pps vs CNS_GPS |
New MSM maser vs GPS for 2018. |
Adjustments and events in 2018
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MSM Adjustments and events in 2018
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Plots for 2017: "TAC" vs 1ppsMeaning of "TAC" changed to CNS as of Oct 3. |
New CNS clock vs maser for 2017. |
Adjustments and events in 2017
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Plot for 2016 - (Jan 1, 2016 to Jan 01, 2017)No maser rate adjustments in 2016. |
New CNS clock vs maser for 2016. |
Plot for 2015 - (Jan 1, 2015 to Dec 31, 2015)Maser rate adjustments on Jan 21, March 6, and Sept 11. |
New CNS clock vs maser for 2015. |
Plot for 2014 - (Jan 1, 2014 to Dec 31, 2014)No adjustments in 2014. |
Plot for 2013 - (Jan 1, 2013 to Dec 31, 2013)Power glitch, and zero point change Nov 13-15.no Rate adjustment |
Plot for 2012 - Jan 1, 2012 to Jan 2, 2013Zero point change : reset TRAK master clock Jan 4th.Maser Rate adjustment January 26. |
Plot for 2011No maser synthesizer adjustments in 2011.
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Plot for 2010 |
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Plot for December 2010 showing antenna replacement on Dec 21. |
Plot for 2009 showing synthesizer adjustments |
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Plot for 2008 showing synthesizer adjustments |
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Plot for 2007 showing synthesizer adjustments |
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Plot for 2006 showing synthesizer adjustments |
Plot for 2005 showing synthesizer adjustments(Note the spikes in these plots are due to problems in the recording system, not the maser!) |
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Plot for 2004 (no synthesizer adjustments in 2004)The jumps are adjustments to the 1 pps zero point of the TRAK master clock. No changes at all were done to the Sigma Tau. |
Plot for 2003 (no adjustments in 2003) |
Plot for 2002 (rate adjustment April 5)The jumps are changes to the zero point offset of the TRAK master clock. |
Plot for 2001 (no rate adjustments)The jumps are changes to the zero point offset of the TRAK master clock. |
Plot for 2000 (no rate adjustments)The jumps are changes to the zero point offset of the TRAK master clock. |
Plot for 1999 (no rate adjustments)The jumps are changes to the zero point offset of the TRAK master clock. The spikes are due to problems in the 1pps recording system. |
Plot for 1998 (rate adjustment Jan 2)The ST maser was moved from the Interferometer Control Building basement to the new GBT control building in October. |
Plot for 1997 (rate adjustment Jan 2,1998) |
Plot for 1996 (rate adjustment Oct 22) |
Plot for 1995 (rate adjustment Dec 7) |
Timer Data for 1994 |
Timer Data for March through December, 1993. |