ASTROSAT CZTI

Data Quality Report

Orbit 29519

Creation date: 2024-06-27T20:05:18.821514
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/AS1A10_094T08_9000004252_29519cztM0_level2.evt modeM0/AS1A10_094T08_9000004252_29519cztM0_level2_quad_clean.evt
Size (bytes)296,593,92039,778,560
Size282.9 MB 37.9 MB
Events in quadrant A1,494,589254,351
Events in quadrant B1,525,868260,968
Events in quadrant C1,600,717249,906
Events in quadrant D4,159,247228,027

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A062830
B064090
C065490
D0144590

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0600
B0600
C0600
D0600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A29531515.113444%
B29531735.858449%
C29531956.603454%
D295350617.135117%

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 2953 2953 0 0 0.00% 0.00%
B 2953 2953 3 3 0.10% 0.10%
C 2953 2953 0 0 0.00% 0.00%
D 2953 2953 205 205 6.94% 6.94%

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 5261 61.18 386 375 79.9
A 15 174 3983 45.18 386 375 79.9
A 3 137 3982 45.16 386 375 79.9
B 0 230 10933 140.36 381 370 75.3
B 12 111 9082 115.76 381 370 75.3
B 11 111 8533 108.47 381 370 75.3
C 14 238 61144 687.83 374 374 88.4
C 3 233 57254 643.8 374 374 88.4
C 2 114 7212 77.4 374 374 88.4
D 8 195 2551496 28547.52 369 357 89.4
D 7 223 64135 713.68 369 357 89.4
D 12 33 44330 492.06 369 357 89.4

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