ASTROSAT CZTI

Data Quality Report

Orbit 13144

Creation date: 2024-06-27T16:36:53.924089
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/AS1T02_011T01_9000001940_13144cztM0_level2.evt modeM0/AS1T02_011T01_9000001940_13144cztM0_level2_quad_clean.evt
Size (bytes)468,331,20084,332,160
Size446.6 MB 80.4 MB
Events in quadrant A3,007,805544,434
Events in quadrant B4,937,489509,399
Events in quadrant C2,838,440556,158
Events in quadrant D2,988,616521,033

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128392
B0186161
C0124301
D0130261

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6053400.660829%
B605378612.985297%
C6053350.578226%
D6053350.578226%

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 7149 6055 0 0 0.00% 0.00%
B 7149 6055 462 462 6.46% 7.63%
C 7149 6055 0 0 0.00% 0.00%
D 7149 6055 4 4 0.06% 0.07%

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 12 189 126089 853.96 727 712 146.8
A 1 162 22935 151.36 727 712 146.8
A 0 23 13246 85.37 727 712 146.8
B 4 239 1799048 13756.94 686 668 130.7
B 0 85 284195 2168.87 686 668 130.7
B 3 64 66818 506.02 686 668 130.7
C 0 207 5308 27.17 726 733 168.4
C 13 61 5289 27.05 726 733 168.4
C 8 222 2227 8.87 726 733 168.4
D 12 221 182604 1058.99 716 697 171.8
D 14 34 40222 230.1 716 697 171.8
D 8 195 24221 136.95 716 697 171.8

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