ASTROSAT CZTI

Data Quality Report

Orbit 33292

Creation date: 2024-06-27T20:47:08.427803
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/AS1T04_072T01_9000004780_33292cztM0_level2.evt modeM0/AS1T04_072T01_9000004780_33292cztM0_level2_quad_clean.evt
Size (bytes)578,998,08066,320,640
Size552.2 MB 63.2 MB
Events in quadrant A2,717,173435,972
Events in quadrant B3,985,237427,514
Events in quadrant C4,782,919407,070
Events in quadrant D5,706,579381,127

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109533
B0151212
C0179792
D0206672

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A508080.157480%
B50803536.948819%
C50804398.641732%
D50804578.996063%

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 7113 5081 0 0 0.00% 0.00%
B 7113 5081 195 195 2.74% 3.84%
C 7113 5081 372 372 5.23% 7.32%
D 7113 5081 357 357 5.02% 7.03%

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 15 169 32827 236.83 691 681 135.7
A 13 6 8206 55.44 691 681 135.7
A 13 254 8135 54.92 691 681 135.7
B 0 219 790911 6361.17 668 653 124.2
B 5 172 506907 4075.09 668 653 124.2
B 12 111 13950 107.03 668 653 124.2
C 10 49 1844790 12876.27 633 641 143.2
C 15 214 216720 1508.71 633 641 143.2
C 0 10 119853 832.37 633 641 143.2
D 8 195 1677733 10703.92 638 622 156.7
D 12 218 835209 5326.63 638 622 156.7
D 7 223 179052 1138.8 638 622 156.7

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