ASTROSAT CZTI

Data Quality Report

Orbit 32192

Creation date: 2024-06-27T20:37:25.989405
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/AS1A09_131T01_9000004690_32192cztM0_level2.evt modeM0/AS1A09_131T01_9000004690_32192cztM0_level2_quad_clean.evt
Size (bytes)586,998,720134,035,200
Size559.8 MB 127.8 MB
Events in quadrant A3,188,788922,568
Events in quadrant B5,274,586947,419
Events in quadrant C3,680,071911,209
Events in quadrant D5,214,735846,105

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134413
B0198482
C0149252
D0195862

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6194390.629642%
B61942023.261221%
C61943555.731353%
D61955909.523810%

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 7534 6196 0 0 0.00% 0.00%
B 7534 6196 27 27 0.36% 0.44%
C 7534 6196 38 38 0.50% 0.61%
D 7535 6197 398 398 5.28% 6.42%

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 17077 99.39 822 808 163.7
A 13 254 11825 67.31 822 808 163.7
A 3 137 7651 41.81 822 808 163.7
B 6 159 1769696 11565.13 824 803 153.0
B 5 172 90191 584.42 824 803 153.0
B 0 229 79803 516.51 824 803 153.0
C 0 10 208751 1149.54 791 799 180.9
C 14 238 177879 978.89 791 799 180.9
C 3 233 79365 434.31 791 799 180.9
D 8 195 1245845 6850.95 769 750 181.7
D 12 233 321941 1767.3 769 750 181.7
D 14 52 313311 1719.82 769 750 181.7

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