Break Point List

During the course of Chandra operation, there were several incidences which caused a sudden jump on trending envelopes. The table below lists all incidences we used in the trending. If the cause is clear, we indicated in the second column. A system named in the "affected systems" column is linked to a list of msids of that system so that you can see which msids are affected by that incidence.


Date Reason Affected Systems
2000.5  
EPHRATE1 SIMACTU
2000.8  
HRCELEC HRMATHERM
2001  
HRMAHEATERS1 HRMAHEATERS2 HRMAHEATERS3 HRMAHEATERS4 HRMAHEATERS
OBAHEATERS3 OBAHEATERS4 OBAHEATERS PCADGRATE SPCELECA1
SPCELECA
2001.2  
HRMAGRAD HRMAHEATERS3 HRMAHEATERS OBAHEATERS1 OBAHEATERS
2001.5  
COMPSIMOFFSETB HRMAHEATERS HRMATHERM SIMELEC
2002  
EPHTV GRADAHET GRADFAP HRMAHEATERS2 HRMAHEATERS
HRMATHERM OBAGRAD PCADGRATE SC_MAIN_TEMP
2002.5  
EPHTV GRADFAP HRCELEC_I HRCELEC HRCELEC_OFF
HRCELEC_S HRCHK HRMAHEATERS3 HRMAHEATERS OBAHEATERS
2002.8  
COMPACISCENT
2003  
ACISELECA
2003.5 IRU swap/change in ACA setpoint
BATT_TEMP COMPGRADKODAK EPHTV EPSBATT GRADCAP
GRADFBLK GRADHSTRUT GRADOCYL GRADTFTE HRCELEC_I
HRCELEC HRCELEC_OFF HRCELEC_S HRMAGRAD HRMAHEATERS1
HRMAHEATERS2 HRMAHEATERS3 HRMAHEATERS4 HRMAHEATERS HRMASTRUTS
HRMATHERM OBAHEATERS1 OBAHEATERS3 OBAHEATERS4 OBAHEATERS
OBFWDBULKHEAD PCADFTSGRAD PCADGDRIFT PCADGRATE1 PCADGRATE2
PCADGRATE PCADITV PCADTEMP SC_MAIN_TEMP SPCELECA1
SPCELECA
2003.6 IRU swap/change in ACA setpoint
EPHHK HRMAHEATERS PCADGDRIFT PCADGRATE PCADITV
2003.975 Stuck on heater
COMPGRADKODAK EPHHK1 EPHHK2 EPHKEY EPHRATE1
EPHTV GRADFBLK GRADHCONE GRADTFTE HRCHK
HRCVETO_I HRCVETO HRCVETO_OFF HRCVETO_S HRMAHEATERS2
HRMAHEATERS3 HRMAHEATERS HRMATHERM MUPS1 MUPS_2B
MUPS OBAGRAD OBAHEATERS1 OBAHEATERS2 OBAHEATERS3
OBAHEATERS4 OBAHEATERS SIMTEMP1 SIMTEMP2 SIMTEMP
SIMTEMPAUX SPCELEC1 SPCELEC SPCELECA1 SPCELECA2A
SPCELECA
2004  
COMPGRADKODAK HRMAHEATERS SC_ANC_TEMP
2004.2  
MUPS_2A
2004.5  
EPSBATT HRCHK
2004.7  
ACISTEMP
2005 Pline Pitch limit
OBAHEATERS4 OBAHEATERS PCADGRATE1 PRECOLL SIMTEMP
SPCELEC SPCELECB
2005.2 Pline Pitch limit
EPHTV
2005.3 Pline Pitch limit
EPHTV
2005.5  
ACISELECB EPHRATE1 EPHRATE EPHTV GRADHCONE
HRMATHERM SC_ANC_TEMP SC_MAIN_TEMP SPCELEC2 SPCELEC
2005.7  
MUPS
2006 Relaxed EPHIN constraint
ACISTEMP COMPACISCENT COMPEPHKEY EPHKEY EPHRATE1
EPHRATE2 EPHRATE EPHTV GRADCAP GRADFAP
GRADFBLK GRADOCYL GRADSSTRUT HRCELEC HRCTEMP
HRCVETO HRMAGRAD HRMAHEATERS2 HRMAHEATERS3 HRMAHEATERS4
HRMAHEATERS HRMASTRUTS HRMATHERM MUPS_2A MUPS
OBAHEATERS1 OBAHEATERS2 OBAHEATERS3 OBAHEATERS4 OBAHEATERS
PCADGDRIFT PCADGRATE2 PCADGRATE PRECOLL
2006.2 Relaxed EPHIN constraint
HRMAHEATERS
2006.5  
HRMAHEATERS SPCELEC1 SPCELECA2A SPCELECA2B
2006.6  
SPCELEC SPCELECA
2006.9  
OBAGRAD
2007 Reset ACA set point
ACISELECA ACISELECB ACISTEMP COMPACISPWR DEAHK_TEMP
EPHKEY EPHRATE1 EPHRATE HRMAHEATERS MUPS1
MUPS OBAGRAD OBAHEATERS PCADFTSGRAD PCADGRATE1
PCADGRATE PCADTEMP PRECOLL SC_ANC_TEMP1 SC_ANC_TEMP
SC_MAIN_TEMP1A SC_MAIN_TEMP SIMTEMP SPCELECA
2007.3 Reset ACA set point
COMPACISCENT
2007.5 Relaxed EPHIN constraint
ACISELECA DEAHK_ELEC HRCELEC_OFF HRMAHEATERS2 HRMAHEATERS
PRECOLL SC_MAIN_TEMP SPCELECA
2007.6 Relaxed EPHIN constraint
COMPACISCENT HRMATHERM
2007.7  
EPHKEY
2007.8  
ACISTEMP HRCELEC_I HRCELEC PCADITV
2007.9 1PIN1AT planning limit begins (36C)
HRCELEC_S
2008  
ACISELECA ACISMECH EPHHK EPHKEY EPHRATE
EPHTV GRADHCONE GRADSSTRUT HRMAGRAD HRMAHEATERS
HRMASTRUTS OBAHEATERS PCADGRATE2 PCADGRATE
2008.2  
ACISMECH COMPACISCENT
2008.3  
ACISTEMP COMPACISCENT OBAGRAD
2008.4  
ACISELECB COMPACISCENT
2008.5  
ACISELECB HRMAHEATERS SPCELECB
2008.6  
EPHHK HRCHK PCADGRATE
2008.7  
ACISMECH
2008.8  
COMPEPHKEY MUPS
2008.9  
EPHKEY EPHRATE HRMAHEATERS
2009 1PIN1AT planning limit moved to (38.5C)
COMPACISCENT EPHKEY EPHRATE EPHTV GRADSSTRUT
HRCHK HRMAHEATERS PCADFTSGRAD PCADGRATE PCADITV
2009.2 1PIN1AT planning limit moved to (38.5C)
DEAHK_ELEC DEAHK_TEMP HRMAHEATERS
2009.3 Relaxed EPHIN constraint
DEAHK_TEMP EPHHK
2009.5  
ACISTEMP PCADGRATE
2009.6  
HRMATHERM MUPS SIMTEMP
2009.7  
GRADABLK OBAHEATERS SIMELEC SIMTEMP
2009.9  
GRADFAP
2010  
COMPGRADKODAK GRADAHET GRADAINCYL GRADCAP GRADFAP
GRADHCONE GRADHHFLEX GRADHPFLEX GRADOCYL GRADPCOLB
GRADSSTRUT PCADITV SPCELECB
2010.1  
PCADITV
2010.2  
ACISMECH HRMAHEATERS
2010.3  
MUPS
2010.4  
EPHTV EPSBATT HRMAGRAD HRMAHEATERS HRMASTRUTS
HRMATHERM OBAHEATERS OBFWDBULKHEAD PCADFTSGRAD PCADTEMP
SC_ANC_TEMP SC_MAIN_TEMP
2010.5  
HRMAHEATERS
2010.6  
HRMAHEATERS HRMATHERM
2010.7  
HRMAHEATERS
2010.9  
DEAHK_TEMP EPHHK
2011  
HRMAGRAD HRMAHEATERS HRMATHERM PRECOLL
2011.1  
SC_ANC_TEMP
2011.3  
DEAHK_TEMP
2011.5  
HRCHK OBAHEATERS PCADITV



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