ASTROSAT CZTI

Data Quality Report

Orbit 02213

Creation date: 2024-06-27T14:15:21.358138
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/AS1T01_072T04_9000000342_02213cztM0_level2.evt modeM0/AS1T01_072T04_9000000342_02213cztM0_level2_quad_clean.evt
Size (bytes)1,090,301,76054,432,000
Size1.0 GB 51.9 MB
Events in quadrant A4,410,960451,067
Events in quadrant B5,330,313413,817
Events in quadrant C6,504,120331,385
Events in quadrant D16,365,41723,004

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01782920
B0201307
C0241627
D0532741

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B110
C1-1-1
D1-1-1

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6021106017.605049%
B6027129721.519827%
C6089149824.601741%
D62206220100.000000%

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 7381 6024 893 893 12.10% 14.82%
B 7381 6028 1194 1194 16.18% 19.81%
C 7250 6090 1279 1279 17.64% 21.00%
D 7381 6221 6021 6021 81.57% 96.79%

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 3 159 496776 2690.11 640 634 184.4
A 3 254 367994 1991.84 640 634 184.4
A 11 246 122260 659.46 640 634 184.4
B 3 191 2301856 16054.74 626 602 143.3
B 14 181 78124 540.83 626 602 143.3
B 15 26 51080 352.16 626 602 143.3
C 8 112 1022829 6250.67 565 559 163.5
C 8 128 883758 5400.32 565 559 163.5
C 8 144 723046 4417.65 565 559 163.5
D 3 254 3566076 25435.26 107 82 140.2
D 3 184 1303797 9299.04 107 82 140.2
D 3 159 1244776 8878.06 107 82 140.2

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