ASTROSAT CZTI

Data Quality Report

Orbit 29291

Creation date: 2024-06-27T20:02:25.755116
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A10_050T01_9000004212_29291cztM0_level2.evt modeM0/AS1A10_050T01_9000004212_29291cztM0_level2_quad_clean.evt
Size (bytes)948,032,64095,022,720
Size904.1 MB 90.6 MB
Events in quadrant A3,407,417631,866
Events in quadrant B3,602,854632,830
Events in quadrant C9,920,768574,981
Events in quadrant D11,291,174530,915

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148902
B0153822
C0346142
D0386442

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7261480.661066%
B7261821.129321%
C7261190026.167195%
D7261213729.431208%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7726 7263 5 5 0.06% 0.07%
B 7726 7263 10 10 0.13% 0.14%
C 7726 7263 798 798 10.33% 10.99%
D 7726 7263 1865 1865 24.14% 25.68%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 12 96 33502 184.05 872 853 177.4
A 13 254 15573 82.98 872 853 177.4
A 14 31 8249 41.69 872 853 177.4
B 0 230 53391 318.19 868 849 165.1
B 10 245 36372 215.12 868 849 165.1
B 10 247 34372 203.01 868 849 165.1
C 3 233 6565285 35710.73 779 784 183.8
C 14 238 191866 1039.48 779 784 183.8
C 14 254 105869 571.66 779 784 183.8
D 1 52 5746934 30757.87 768 747 186.8
D 8 195 1602478 8573.66 768 747 186.8
D 7 69 375312 2004.95 768 747 186.8

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter