ASTROSAT CZTI

Data Quality Report

Orbit 09007

Creation date: 2024-06-27T15:40:02.826990
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/AS1C02_037T01_9000001252_09007cztM0_level2.evt modeM0/AS1C02_037T01_9000001252_09007cztM0_level2_quad_clean.evt
Size (bytes)523,535,04099,089,280
Size499.3 MB 94.5 MB
Events in quadrant A4,063,313626,541
Events in quadrant B3,877,451630,203
Events in quadrant C3,367,141621,767
Events in quadrant D4,042,148604,361

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0167952
B0165071
C0152731
D0170521

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7445560.752183%
B74451181.584956%
C7445260.349228%
D74451171.571525%

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 7630 7447 3 3 0.04% 0.04%
B 7630 7447 49 49 0.64% 0.66%
C 7630 7447 0 0 0.00% 0.00%
D 7630 7447 58 58 0.76% 0.78%

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 509503 2819.69 885 866 180.4
A 1 162 67635 370.14 885 866 180.4
A 5 16 26656 142.97 885 866 180.4
B 10 16 253275 1478.34 884 863 170.7
B 0 230 100871 585.73 884 863 170.7
B 0 214 33456 190.89 884 863 170.7
C 8 128 10101 46.09 858 862 200.5
C 13 61 6627 28.76 858 862 200.5
C 8 112 6210 26.68 858 862 200.5
D 12 233 330442 1429.47 851 831 230.6
D 6 225 160889 694.15 851 831 230.6
D 10 199 113268 487.62 851 831 230.6

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