ASTROSAT CZTI

Data Quality Report

Orbit 47420

Creation date: 2024-07-05T07:48:32.726523
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/AS1A13_053T01_9000006326_47420cztM0_level2.fits modeM0/AS1A13_053T01_9000006326_47420cztM0_level2_quad_clean.evt
Size (bytes)527,817,600119,283,840
Size503.4 MB 113.8 MB
Events in quadrant A7,892,180778,612
Events in quadrant B3,441,728820,416
Events in quadrant C3,950,788774,546
Events in quadrant D3,676,323720,670

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0284612
B0155622
C0170312
D0165442

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74394235.686248%
B7439861.156069%
C74402042.741935%
D7440891.196237%

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 9069 7441 133 133 1.47% 1.79%
B 9069 7440 6 6 0.07% 0.08%
C 9070 7441 164 164 1.81% 2.20%
D 9070 7442 60 60 0.66% 0.81%

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 10 83 3972879 23584.14 812 792 168.4
A 9 191 787189 4669.21 812 792 168.4
A 3 137 9461 51.47 812 792 168.4
B 5 32 44703 269.83 823 796 162.7
B 5 255 43442 262.08 823 796 162.7
B 0 200 32318 193.72 823 796 162.7
C 12 2 548269 2900.51 807 809 188.7
C 1 3 123388 649.44 807 809 188.7
C 12 250 63856 334.03 807 809 188.7
D 2 249 345377 1720.49 808 782 200.3
D 4 223 79764 394.34 808 782 200.3
D 7 38 35828 174.98 808 782 200.3

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