ASTROSAT CZTI

Data Quality Report

Orbit 32038

Creation date: 2024-06-27T20:35:43.622443
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/AS1T04_046T01_9000004680_32038cztM0_level2.evt modeM0/AS1T04_046T01_9000004680_32038cztM0_level2_quad_clean.evt
Size (bytes)596,413,44098,084,160
Size568.8 MB 93.5 MB
Events in quadrant A3,247,171646,994
Events in quadrant B5,440,256631,918
Events in quadrant C4,715,282604,911
Events in quadrant D4,201,971614,959

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140241
B0209131
C0184212
D0166901

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6762781.153505%
B67622243.312629%
C67614626.833309%
D6761971.434699%

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 6877 6762 0 0 0.00% 0.00%
B 6877 6763 27 27 0.39% 0.40%
C 6876 6762 228 228 3.32% 3.37%
D 6876 6762 54 54 0.79% 0.80%

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 13279 73.81 835 817 168.8
A 15 174 10531 57.53 835 817 168.8
A 13 6 9448 51.12 835 817 168.8
B 6 159 1936546 12404.58 818 796 156.1
B 10 245 100765 640.62 818 796 156.1
B 5 172 87275 554.17 818 796 156.1
C 3 233 997564 5457.62 777 781 182.6
C 0 10 516476 2823.55 777 781 182.6
C 14 238 125822 684.63 777 781 182.6
D 8 195 687421 3571.56 803 779 192.3
D 2 250 181652 940.81 803 779 192.3
D 10 199 88053 453.95 803 779 192.3

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