ASTROSAT CZTI

Data Quality Report

Orbit 28544

Creation date: 2024-06-27T19:53:09.094183
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_102T07_9000004102_28544cztM0_level2.evt modeM0/AS1A10_102T07_9000004102_28544cztM0_level2_quad_clean.evt
Size (bytes)578,793,600108,313,920
Size552.0 MB 103.3 MB
Events in quadrant A3,500,691761,079
Events in quadrant B3,513,911759,069
Events in quadrant C3,146,407704,744
Events in quadrant D6,969,428643,966

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142791
B0141971
C0130511
D0248961

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58851071.818182%
B58862163.669725%
C58861202.038736%
D588693715.919130%

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 7160 5885 13 13 0.18% 0.22%
B 7161 5886 31 31 0.43% 0.53%
C 7161 5886 0 0 0.00% 0.00%
D 7161 5886 996 996 13.91% 16.92%

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 15 174 324651 1985.8 822 809 163.1
A 13 254 11558 65.91 822 809 163.1
A 3 137 7418 40.53 822 809 163.1
B 10 245 280461 1847.91 799 784 151.3
B 0 230 61504 401.19 799 784 151.3
B 12 111 17803 112.45 799 784 151.3
C 14 238 126404 713.56 758 764 176.1
C 3 233 30727 170.17 758 764 176.1
C 7 247 28455 157.27 758 764 176.1
D 1 52 2523417 14167.53 744 723 178.1
D 8 195 1414188 7938.07 744 723 178.1
D 2 250 142428 795.82 744 723 178.1

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