ASTROSAT CZTI

Data Quality Report

Orbit 45763

Creation date: 2024-06-27T23:15:53.763982
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/AS1T05_183T01_9000006124_45763cztM0_level2.fits modeM0/AS1T05_183T01_9000006124_45763cztM0_level2_quad_clean.evt
Size (bytes)614,635,200105,880,320
Size586.2 MB 101.0 MB
Events in quadrant A6,265,267728,159
Events in quadrant B7,237,020642,210
Events in quadrant C3,527,150743,987
Events in quadrant D5,239,922656,681

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0225141
B0259731
C0143721
D0197471

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62323756.017330%
B6232137622.079589%
C62331442.310284%
D62334296.882721%

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 7417 6233 109 109 1.47% 1.75%
B 7417 6233 838 838 11.30% 13.44%
C 7418 6234 72 72 0.97% 1.15%
D 7418 6234 326 326 4.39% 5.23%

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 2757710 17639.05 760 746 156.3
A 13 248 443297 2831.44 760 746 156.3
A 14 235 93585 593.98 760 746 156.3
B 3 112 2729709 19700.61 712 693 138.5
B 5 172 1066149 7691.46 712 693 138.5
B 12 18 273309 1968.0 712 693 138.5
C 14 254 259229 1480.13 750 757 174.6
C 2 14 90916 516.29 750 757 174.6
C 1 3 76110 431.51 750 757 174.6
D 1 52 858686 4680.52 738 719 183.3
D 1 47 523894 2854.11 738 719 183.3
D 13 249 522287 2845.34 738 719 183.3

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