HRC Trends
Table of Contents
HRC Secondary Science Time Series Plots
Cumulative HV ontime and HVPS state changes for HRC-I, -S, and Antico Shield
Charged Particles, X-ray Flux Time Series Plots
Temperature Time Series Plots
Time History of the Chandra's Geocentric Altitude
HRC-I and HRC-S Exposure Maps
Time History of the X-ray Background
Vega results - 10/28/99-02/24/02
QE and Gain Variation with Time
HVPS Performance Statistics and Trends (pdf)
HRC Secondary Science Time Series Plots
The source of the data for the plots are the "24 Hour HRC Standard Processing Products" to be found at http://netsi.cfa.harvard.edu/hrc/TA/node1.html. The Secondary Science Data Products (SSD) were used to produce the following subsystem plots:
A)
1. Low Voltage Power System (LVPS)
5 Volt, +15 Volt, -15 Volt, 24 Volt, Prim I, Prim V (temperature sensitive readout).
24 hour minimum, maximum, and average plots of the these parameters were also generated
2. High Voltage Power System (HVPS)
Imager Top HV, Spectroscopy Top HV
3. Event Counting Rates
4. Shield Counting rates
For the year 2000
|
Description
|
DOY 8-67
|
68-127
|
128-187
|
188-247
|
248-307
|
308-354
|
8-354
|
|
LVPS
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
|
LVPS min,max,avg
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
|
Event Rates, HV
|
gif gif (log)
|
gif gif (log)
|
gif gif (log)
|
gif gif (log)
|
gif gif (log)
|
gif gif (log)
|
gif
gif (log)
|
|
Event Rates, min, max, and mean
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
|
Shield Rates, HV
|
gif gif (log)
|
gif gif (log)
|
gif gif (log)
|
gif gif (log)
|
gif gif (log)
|
gif gif (log)
|
gif
gif (log)
|
|
Shield Rates, min, max, and mean
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
For the year 2001
|
Description
|
DOY 1-60
|
60-120
|
120-180
|
180-240
|
240-300
|
300-365
|
1-365
|
|
LVPS
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
|
LVPS min,max,avg
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
|
Event Rates, HV
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif (log)
|
|
Event Rates, min, max, and mean
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
|
Shield Rates, HV
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif (log)
|
|
Shield Rates, min, max, and mean
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
For the year 2002
|
Description
|
DOY 1-60
|
60-120
|
120-180
|
180-240
|
240-300
|
300-365
|
1-365
|
|
LVPS
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
|
LVPS min,max,avg
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
|
Event Rates, HV
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif (log)
|
|
Event Rates, min, max, and mean
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
|
Shield Rates, HV
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif (log)
|
|
Shield Rates, min, max, and mean
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
For the year 2003
|
Description
|
DOY 1-60
|
60-120
|
120-180
|
180-240
|
240-300
|
300-365
|
1-365
|
|
LVPS
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
|
LVPS min,max,avg
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
|
Event Rates, HV
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif (log)
|
|
Event Rates, min, max, and mean
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
|
Shield Rates, HV
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif (log)
|
|
Shield Rates, min, max, and mean
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
For the year 2004
|
Description
|
DOY 1-60
|
60-120
|
120-180
|
180-240
|
240-300
|
300-365
|
1-365
|
|
LVPS
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
|
LVPS min,max,avg
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
|
Event Rates, HV
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif (log)
|
|
Event Rates, min, max, and mean
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
|
Shield Rates, HV
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif (log)
|
gif
gif(log)
|
gif
gif (log)
|
|
Shield Rates, min, max, and mean
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
For the year 2005
|
Description
|
DOY 1-60
|
60-120
|
120-180
|
180-240
|
240-300
|
300-365
|
1-365
|
|
LVPS
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
|
LVPS min,max,avg
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
|
Event Rates, HV
|
gif gif (log)
|
gif gif (log)
|
gif gif (log)
|
gif gif (log)
|
gif gif (log)
|
gif gif (log)
|
gif gif (log)
|
|
Event Rates, min, max, and mean
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
|
Shield Rates, HV
|
gif gif (log)
|
gif gif (log)
|
gif gif (log)
|
gif gif (log)
|
gif gif (log)
|
gif gif (log)
|
gif gif (log)
|
|
Shield Rates, min, max, and mean
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
For the year 2006
|
Description
|
DOY 1-60
|
60-120
|
120-180
|
180-240
|
240-300
|
300-365
|
1-365
|
|
LVPS
|
gif
|
gif
|
gif
|
gif
|
|
|
gif
|
|
LVPS min,max,avg
|
gif
|
gif
|
gif
|
gif
|
|
|
gif
|
|
Event Rates, HV
|
gif gif (log)
|
gif gif (log)
|
gif gif (log)
|
gif gif (log)
|
|
|
gif gif (log)
|
|
Event Rates, min, max, and mean
|
gif
|
gif
|
gif
|
gif
|
|
|
gif
|
|
Shield Rates, HV
|
gif gif (log)
|
gif gif (log)
|
gif gif (log)
|
gif gif (log)
|
|
|
gif gif (log)
|
|
Shield Rates, min, max, and mean
|
gif
|
gif
|
gif
|
gif
|
|
|
gif
|
B)
Temperature Time Series Plots
Time series plots of temperatures were generated for two
locations on the HRC instrument, at the rear of the detector
housing and at the +Y side of the FEA box. The temperatures were
plotted if they fell within one of three ranges for
the CXO solar array angles: 45 - 55 degrees, 80 - 100
degrees, and greater than 165 degrees. A solar array angle of 0 degrees corresponds to Chandra pointing towards the Sun.
For the year 2000
Description
Temperature plots gif
For the year 2001
Description
Temperature plots gif
For the year 2002
Description
Temperature plots gif
For the year 2003
Description
Temperature plots gif
For the year 2004
Description
Temperature plots gif
For the year 2005
Description
Temperature plots gif
For the year 2006
Description
Temperature plots gif
Charged Particles, X-ray Flux Time Series Plots
For the Year 2000
(EPHIN Channel definitions)
For the Year 2001
(EPHIN Channel definitions)
For the Year 2002
(EPHIN Channel definitions)
For the Year 2003
(EPHIN Channel definitions)
For the Year 2004
(EPHIN Channel definitions)
For the Year 2005
(EPHIN Channel definitions)
For the Year 2006
(EPHIN Channel definitions)
Current 6-hour GOES10&12 X-ray Flux Plots
Current 3-day GOES10&12 X-ray Flux Plots
Current 3-day GOES 10 Integral Electron Flux Plots
Current 3-day GOES10 Integral Proton Flux Plots
Realtime ACE Observations
Geocentric Altitude Time Series Plots
For the Year 2000
|
Description
|
DOY 1-60
|
60-120
|
120-180
|
180-240
|
240-300
|
300-366
|
1-366
|
|
Geocentric Altitude
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
Geocentric Altitude Time Series Plots
For the Year 2001
|
Description
|
DOY 1-60
|
60-120
|
120-180
|
180-240
|
240-300
|
300-365
|
1-365
|
|
Geocentric Altitude
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
For the Year 2002
|
Description
|
DOY 1-60
|
60-120
|
120-180
|
180-240
|
240-300
|
300-365
|
1-365
|
|
Geocentric Altitude
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
For the Year 2003
|
Description
|
DOY 1-60
|
60-120
|
120-180
|
180-240
|
240-300
|
300-365
|
1-365
|
|
Geocentric Altitude
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
For the Year 2004
|
Description
|
DOY 1-60
|
60-120
|
120-180
|
180-240
|
240-300
|
300-366
|
1-366
|
|
Geocentric Altitude
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
For the Year 2005
|
Description
|
DOY 1-60
|
60-120
|
120-180
|
180-240
|
240-300
|
300-365
|
1-365
|
|
Geocentric Altitude
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
gif
|
Current Orbit and Radiation Predictions
- memo by M. Juda
|
