ASTROSAT CZTI

Data Quality Report

Orbit 07588

Creation date: 2024-06-27T15:21:21.225120
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/AS1A02_024T01_9000001044_07588cztM0_level2.evt modeM0/AS1A02_024T01_9000001044_07588cztM0_level2_quad_clean.evt
Size (bytes)588,942,72091,080,000
Size561.7 MB 86.9 MB
Events in quadrant A4,193,540557,765
Events in quadrant B3,967,036567,382
Events in quadrant C4,232,794562,555
Events in quadrant D4,919,604533,634

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0174423
B0169562
C0176402
D0198642

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77121181.530083%
B77121361.763485%
C77121842.385892%
D77122683.475104%

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 8647 7714 0 0 0.00% 0.00%
B 8647 7714 1 1 0.01% 0.01%
C 8647 7714 3 3 0.03% 0.04%
D 8647 7714 148 148 1.71% 1.92%

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 15 239 561872 2917.12 940 920 192.3
A 3 1 14110 68.59 940 920 192.3
A 0 226 8940 41.71 940 920 192.3
B 11 51 198257 1070.82 950 925 184.3
B 0 214 53102 283.14 950 925 184.3
B 12 111 18743 96.69 950 925 184.3
C 9 68 644473 2981.93 916 920 215.8
C 8 229 8844 36.72 916 920 215.8
C 1 16 7682 31.33 916 920 215.8
D 2 152 709407 3153.08 908 879 224.7
D 2 14 520455 2312.21 908 879 224.7
D 5 233 84871 373.78 908 879 224.7

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