ASTROSAT CZTI

Data Quality Report

Orbit 33442

Creation date: 2024-06-27T20:48:53.776753
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/AS1A11_065T01_9000004794_33442cztM0_level2.evt modeM0/AS1A11_065T01_9000004794_33442cztM0_level2_quad_clean.evt
Size (bytes)587,085,12062,311,680
Size559.9 MB 59.4 MB
Events in quadrant A2,645,610387,820
Events in quadrant B3,424,218380,432
Events in quadrant C3,281,804372,497
Events in quadrant D8,033,534338,268

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116933
B0138682
C0131222
D0279592

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5831100.171497%
B58311562.675356%
C5831921.577774%
D5831142124.369748%

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 7234 5832 0 0 0.00% 0.00%
B 7234 5832 110 110 1.52% 1.89%
C 7234 5832 89 89 1.23% 1.53%
D 7233 5831 1339 1339 18.51% 22.96%

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 6 16457 116.17 679 665 135.9
A 13 254 11091 76.7 679 665 135.9
A 3 137 6777 44.96 679 665 135.9
B 5 172 489394 3810.89 667 650 128.2
B 5 200 81419 629.78 667 650 128.2
B 5 255 69727 538.61 667 650 128.2
C 15 214 251640 1682.65 649 654 149.2
C 14 254 202316 1351.97 649 654 149.2
C 0 10 117656 784.4 649 654 149.2
D 1 52 2623818 18508.27 529 516 141.7
D 8 195 2194457 15478.98 529 516 141.7
D 12 218 472013 3326.57 529 516 141.7

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