ASTROSAT CZTI

Data Quality Report

Orbit 22045

Creation date: 2024-06-27T18:35:47.341396
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/AS1A07_027T02_9000003258_22045cztM0_level2.evt modeM0/AS1A07_027T02_9000003258_22045cztM0_level2_quad_clean.evt
Size (bytes)324,512,64074,831,040
Size309.5 MB 71.4 MB
Events in quadrant A2,225,288506,423
Events in quadrant B2,419,477508,104
Events in quadrant C2,198,956479,272
Events in quadrant D2,694,777473,365

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0860
B0860
C0860
D0860

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A093761
B099191
C093411
D0108571

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4242130.306459%
B4242501.178689%
C4242400.942951%
D4242741.744460%

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 4242 4242 0 0 0.00% 0.00%
B 4242 4242 28 28 0.66% 0.66%
C 4242 4242 0 0 0.00% 0.00%
D 4242 4242 60 60 1.41% 1.41%

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 3 1 6749 54.4 576 567 113.6
A 13 254 6430 51.6 576 567 113.6
A 0 226 5091 39.81 576 567 113.6
B 4 171 104787 991.93 567 556 105.1
B 3 64 54041 509.0 567 556 105.1
B 0 197 20790 192.56 567 556 105.1
C 14 238 88641 713.15 538 542 123.5
C 10 22 8226 62.2 538 542 123.5
C 8 208 5110 36.98 538 542 123.5
D 1 52 192727 1452.69 547 532 132.3
D 7 238 152554 1149.05 547 532 132.3
D 12 233 118458 891.33 547 532 132.3

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