ASTROSAT CZTI

Data Quality Report

Orbit 09369

Creation date: 2024-06-27T15:45:08.879117
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/AS1G07_040T01_9000001326_09369cztM0_level2.evt modeM0/AS1G07_040T01_9000001326_09369cztM0_level2_quad_clean.evt
Size (bytes)517,939,20092,249,280
Size493.9 MB 88.0 MB
Events in quadrant A4,543,402589,326
Events in quadrant B3,010,610598,724
Events in quadrant C2,837,707586,814
Events in quadrant D4,848,935560,742

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180741
B0134571
C0133071
D0191281

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6566620.944258%
B6566270.411209%
C656650.076150%
D6566981.492537%

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 6931 6567 22 22 0.32% 0.34%
B 6931 6567 0 0 0.00% 0.00%
C 6931 6567 1 1 0.01% 0.02%
D 6931 6567 81 81 1.17% 1.23%

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 8 5 1547067 10193.19 741 723 151.7
A 5 112 47418 307.8 741 723 151.7
A 1 162 33556 216.43 741 723 151.7
B 0 214 30098 203.32 751 731 144.4
B 5 255 23989 161.02 751 731 144.4
B 12 111 15691 103.57 751 731 144.4
C 9 68 13178 73.91 722 723 168.5
C 13 61 5470 28.17 722 723 168.5
C 8 222 4509 22.47 722 723 168.5
D 8 195 1525224 8202.53 708 689 185.9
D 1 52 234790 1259.55 708 689 185.9
D 12 233 198283 1063.13 708 689 185.9

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