ASTROSAT CZTI

Data Quality Report

Orbit 09606

Creation date: 2024-06-27T15:48:18.733231
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/AS1G05_238T01_9000001364_09606cztM0_level2.evt modeM0/AS1G05_238T01_9000001364_09606cztM0_level2_quad_clean.evt
Size (bytes)1,620,123,840314,616,960
Size1.5 GB 300.0 MB
Events in quadrant A11,476,4462,005,573
Events in quadrant B11,602,5041,994,602
Events in quadrant C11,123,5861,943,195
Events in quadrant D13,204,0911,897,837

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A051266535
B051574499
C050858464
D056820535

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05044
B05042
C05044
D050410

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0321
B0320
C0320
D0321

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A245301740.709336%
B245462140.871832%
C245551530.623091%
D245302250.917244%

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 38286 24751 0 0 0.00% 0.00%
B 38286 24746 3 3 0.01% 0.01%
C 38286 24753 25 25 0.07% 0.10%
D 38286 24762 78 78 0.20% 0.31%

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 1 162 97833 162.73 2918 2866 583.6
A 1 178 42239 67.47 2918 2866 583.6
A 1 161 39489 62.75 2918 2866 583.6
B 0 214 132345 234.7 2912 2837 551.8
B 12 111 64041 110.91 2912 2837 551.8
B 4 80 58244 100.41 2912 2837 551.8
C 14 234 168385 253.27 2809 2824 653.7
C 13 61 20650 27.27 2809 2824 653.7
C 14 67 9478 10.18 2809 2824 653.7
D 8 195 1745663 2506.27 2795 2729 695.4
D 1 52 290968 414.48 2795 2729 695.4
D 13 104 140994 198.82 2795 2729 695.4

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