ASTROSAT CZTI

Data Quality Report

Orbit 27534

Creation date: 2024-06-27T19:41:05.629525
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/AS1T03_249T01_9000003934_27534cztM0_level2.evt modeM0/AS1T03_249T01_9000003934_27534cztM0_level2_quad_clean.evt
Size (bytes)331,922,88034,269,120
Size316.5 MB 32.7 MB
Events in quadrant A1,809,421198,589
Events in quadrant B2,006,610201,515
Events in quadrant C1,796,755192,164
Events in quadrant D4,183,014179,168

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A075930
B082670
C076230
D0149810

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A376000.000000%
B3761330.877426%
C3761220.584951%
D376196425.631481%

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 3760 3760 0 0 0.00% 0.00%
B 3761 3761 17 17 0.45% 0.45%
C 3761 3761 2 2 0.05% 0.05%
D 3760 3760 782 782 20.80% 20.80%

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 0 13 35855 377.57 458 448 93.8
A 13 254 5409 52.9 458 448 93.8
A 6 16 4872 47.18 458 448 93.8
B 10 245 142238 1625.65 451 440 87.2
B 3 64 38307 434.12 451 440 87.2
B 0 230 28505 321.75 451 440 87.2
C 14 238 70944 679.42 437 441 103.8
C 7 221 20963 197.77 437 441 103.8
C 13 61 3016 24.81 437 441 103.8
D 1 52 1520218 16353.59 383 373 92.9
D 7 80 1035903 11142.34 383 373 92.9
D 2 250 82740 886.27 383 373 92.9

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