ASTROSAT CZTI

Data Quality Report

Orbit 14145

Creation date: 2024-06-27T16:51:00.800909
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/AS1A04_224T05_9000002088_14145cztM0_level2.evt modeM0/AS1A04_224T05_9000002088_14145cztM0_level2_quad_clean.evt
Size (bytes)571,904,64099,838,080
Size545.4 MB 95.2 MB
Events in quadrant A3,721,003619,979
Events in quadrant B3,754,491629,981
Events in quadrant C3,918,113642,817
Events in quadrant D5,412,176603,132

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159463
B0160472
C0161482
D0210842

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7576720.950370%
B75761171.544351%
C7576740.976769%
D75764475.900211%

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 8752 7579 0 0 0.00% 0.00%
B 8752 7579 1 1 0.01% 0.01%
C 8752 7579 0 0 0.00% 0.00%
D 8752 7579 330 330 3.77% 4.35%

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 12 189 72130 369.05 942 921 193.0
A 9 143 16002 78.16 942 921 193.0
A 12 96 13612 65.77 942 921 193.0
B 0 189 23453 122.62 945 919 183.8
B 12 111 22295 116.32 945 919 183.8
B 3 209 19818 102.84 945 919 183.8
C 3 233 288617 1316.01 930 936 218.6
C 13 61 6541 25.64 930 936 218.6
C 10 22 4231 15.07 930 936 218.6
D 1 52 1503443 6993.59 899 878 214.8
D 7 80 361451 1678.26 899 878 214.8
D 8 195 40261 183.31 899 878 214.8

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