ASTROSAT CZTI

Data Quality Report

Orbit 33454

Creation date: 2024-06-27T20:49:02.373966
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_065T07_9000004798_33454cztM0_level2.evt modeM0/AS1A11_065T07_9000004798_33454cztM0_level2_quad_clean.evt
Size (bytes)450,809,28059,627,520
Size429.9 MB 56.9 MB
Events in quadrant A2,364,965376,118
Events in quadrant B3,834,265371,920
Events in quadrant C2,704,094367,387
Events in quadrant D4,413,107342,185

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A099922
B0146001
C0107751
D0164731

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A496260.120919%
B49624158.363563%
C4962410.826280%
D49621783.587263%

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 7056 4963 0 0 0.00% 0.00%
B 7056 4963 326 326 4.62% 6.57%
C 7056 4963 39 39 0.55% 0.79%
D 7056 4963 160 160 2.27% 3.22%

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 14377 113.01 608 597 121.9
A 13 254 9158 70.21 608 597 121.9
A 3 137 5741 42.19 608 597 121.9
B 5 172 709755 6440.67 579 565 110.1
B 5 255 471982 4281.28 579 565 110.1
B 4 251 217697 1971.93 579 565 110.1
C 15 214 217452 1609.74 582 589 134.7
C 0 10 133780 988.65 582 589 134.7
C 1 23 28912 210.24 582 589 134.7
D 8 195 1388380 9711.92 576 562 142.9
D 2 250 430153 3006.27 576 562 142.9
D 12 233 132951 926.46 576 562 142.9

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