ASTROSAT CZTI

Data Quality Report

Orbit 14490

Creation date: 2024-06-27T16:55:55.464001
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_034T02_9000002136_14490cztM0_level2.evt modeM0/AS1G08_034T02_9000002136_14490cztM0_level2_quad_clean.evt
Size (bytes)462,997,44096,180,480
Size441.5 MB 91.7 MB
Events in quadrant A3,097,495625,303
Events in quadrant B3,975,826627,580
Events in quadrant C3,120,877620,336
Events in quadrant D3,397,728597,906

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133013
B0160872
C0133312
D0143802

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6330270.426540%
B63302323.665087%
C6330240.379147%
D6330681.074250%

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 7586 6332 0 0 0.00% 0.00%
B 7586 6332 73 73 0.96% 1.15%
C 7586 6332 0 0 0.00% 0.00%
D 7586 6332 55 55 0.73% 0.87%

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 54429 338.16 783 767 158.7
A 8 15 13370 79.42 783 767 158.7
A 0 226 6961 39.03 783 767 158.7
B 10 245 418884 2825.81 784 765 148.0
B 15 222 223793 1507.31 784 765 148.0
B 3 209 100359 673.09 784 765 148.0
C 3 233 115541 647.29 766 771 177.3
C 0 207 19401 105.07 766 771 177.3
C 13 61 5555 26.98 766 771 177.3
D 10 199 202880 1115.82 754 736 181.2
D 15 0 105833 580.13 754 736 181.2
D 10 70 94872 519.62 754 736 181.2

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