ASTROSAT CZTI

Data Quality Report

Orbit 13736

Creation date: 2024-06-27T16:45:21.718263
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/AS1G08_062T01_9000002038_13736cztM0_level2.evt modeM0/AS1G08_062T01_9000002038_13736cztM0_level2_quad_clean.evt
Size (bytes)557,228,160105,750,720
Size531.4 MB 100.9 MB
Events in quadrant A3,270,351697,656
Events in quadrant B3,589,567702,642
Events in quadrant C3,908,604718,894
Events in quadrant D5,670,412633,831

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136013
B0147092
C0156182
D0210732

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6445300.465477%
B6445671.039566%
C64451762.730799%
D644582412.785105%

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 7811 6447 0 0 0.00% 0.00%
B 7811 6447 14 14 0.18% 0.22%
C 7811 6447 103 103 1.32% 1.60%
D 7811 6447 648 648 8.30% 10.05%

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 0 23 75529 456.14 819 804 163.8
A 1 162 17164 99.87 819 804 163.8
A 0 226 12067 68.75 819 804 163.8
B 8 250 108288 698.24 822 805 153.9
B 0 189 74151 476.48 822 805 153.9
B 4 173 43441 276.98 822 805 153.9
C 4 254 682520 3707.19 798 806 183.9
C 3 233 105031 566.78 798 806 183.9
C 13 61 5924 27.83 798 806 183.9
D 5 222 1836852 10072.99 758 740 182.3
D 8 195 429459 2351.97 758 740 182.3
D 10 157 230662 1261.36 758 740 182.3

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