ASTROSAT CZTI

Data Quality Report

Orbit 32810

Creation date: 2024-06-27T20:42:16.966797
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_044T01_9000004732_32810cztM0_level2.evt modeM0/AS1A11_044T01_9000004732_32810cztM0_level2_quad_clean.evt
Size (bytes)344,848,32069,704,640
Size328.9 MB 66.5 MB
Events in quadrant A1,773,893475,366
Events in quadrant B2,226,247472,878
Events in quadrant C2,229,486467,232
Events in quadrant D3,963,118434,528

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A076512
B090531
C089331
D0143801

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3685170.461330%
B36851664.504749%
C36851303.527815%
D36852556.919946%

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 5297 3686 5 5 0.09% 0.14%
B 5297 3686 92 92 1.74% 2.50%
C 5297 3686 108 108 2.04% 2.93%
D 5297 3686 192 192 3.62% 5.21%

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 14 238 56377 643.78 432 423 86.9
A 9 143 26616 301.37 432 423 86.9
A 15 17 8844 96.89 432 423 86.9
B 5 172 379894 4622.24 428 416 82.1
B 0 219 91012 1103.51 428 416 82.1
B 5 200 20888 249.36 428 416 82.1
C 0 10 497358 5024.52 420 424 98.9
C 3 233 23444 232.76 420 424 98.9
C 14 67 23272 231.02 420 424 98.9
D 8 195 1375320 13379.18 412 401 102.8
D 2 250 285562 2774.87 412 401 102.8
D 2 120 149752 1453.32 412 401 102.8

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