ASTROSAT CZTI

Data Quality Report

Orbit 22390

Creation date: 2024-06-27T18:40:11.103138
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_007T04_9000003310_22390cztM0_level2.evt modeM0/AS1A07_007T04_9000003310_22390cztM0_level2_quad_clean.evt
Size (bytes)467,343,36096,419,520
Size445.7 MB 92.0 MB
Events in quadrant A3,073,307636,255
Events in quadrant B3,166,003645,668
Events in quadrant C3,150,367614,333
Events in quadrant D4,341,634589,587

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132432
B0135252
C0133992
D0171502

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6213320.515049%
B6214520.836820%
C62131011.625624%
D62131542.478674%

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 7448 6213 0 0 0.00% 0.00%
B 7449 6214 1 1 0.01% 0.02%
C 7448 6213 8 8 0.11% 0.13%
D 7448 6214 103 103 1.38% 1.66%

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 20471 125.24 792 774 157.3
A 13 254 8787 50.95 792 774 157.3
A 0 226 7006 39.62 792 774 157.3
B 0 245 19795 130.19 790 772 146.1
B 12 111 16967 110.83 790 772 146.1
B 0 229 15967 103.99 790 772 146.1
C 14 238 121438 678.55 767 772 177.8
C 0 10 36227 199.38 767 772 177.8
C 13 61 5309 25.51 767 772 177.8
D 1 52 668111 3612.27 769 748 184.7
D 12 227 509682 2754.74 769 748 184.7
D 15 145 109647 589.44 769 748 184.7

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