ASTROSAT CZTI

Data Quality Report

Orbit 31243

Creation date: 2024-06-27T20:25:31.846376
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_073T02_9000004522_31243cztM0_level2.evt modeM0/AS1A10_073T02_9000004522_31243cztM0_level2_quad_clean.evt
Size (bytes)735,367,680115,819,200
Size701.3 MB 110.5 MB
Events in quadrant A3,789,919766,971
Events in quadrant B6,513,485753,665
Events in quadrant C4,400,685725,683
Events in quadrant D7,030,612709,200

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0164892
B0251362
C0180962
D0267572

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7936610.768649%
B79363254.095262%
C79372192.759229%
D79371191.499307%

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 8586 7938 0 0 0.00% 0.00%
B 8586 7938 97 97 1.13% 1.22%
C 8587 7939 35 35 0.41% 0.44%
D 8587 7939 30 30 0.35% 0.38%

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 13 254 14227 66.92 981 960 198.3
A 3 137 10270 46.96 981 960 198.3
A 0 226 8285 36.95 981 960 198.3
B 6 159 2205125 11892.67 957 932 185.3
B 4 80 307953 1656.52 957 932 185.3
B 0 190 96625 516.31 957 932 185.3
C 3 233 284177 1289.22 924 927 219.7
C 14 238 154278 697.98 924 927 219.7
C 15 208 135257 611.41 924 927 219.7
D 8 195 3306271 13629.38 929 908 242.5
D 12 79 80953 330.06 929 908 242.5
D 2 250 41495 167.36 929 908 242.5

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