ASTROSAT CZTI

Data Quality Report

Orbit 10097

Creation date: 2024-06-27T15:54:59.423733
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_072T01_9000001452_10097cztM0_level2.evt modeM0/AS1G07_072T01_9000001452_10097cztM0_level2_quad_clean.evt
Size (bytes)538,862,40083,836,800
Size513.9 MB 80.0 MB
Events in quadrant A3,393,556507,302
Events in quadrant B3,626,271516,455
Events in quadrant C3,392,661515,376
Events in quadrant D5,402,253481,810

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01519326
B01560930
C01530728
D02102452

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7445660.886501%
B7443851.142013%
C7443740.994223%
D74402012.701613%

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 9095 7455 0 0 0.00% 0.00%
B 9095 7454 12 12 0.13% 0.16%
C 9095 7454 6 6 0.07% 0.08%
D 9095 7453 102 102 1.12% 1.37%

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 0 226 7960 39.39 880 860 180.3
A 12 194 7231 35.34 880 860 180.3
A 3 137 4059 17.75 880 860 180.3
B 4 239 107756 629.91 886 864 169.7
B 0 214 54505 316.11 886 864 169.7
B 12 111 18817 105.8 886 864 169.7
C 14 234 31199 150.79 860 863 201.2
C 13 61 6409 27.57 860 863 201.2
C 8 222 4933 20.23 860 863 201.2
D 1 52 1690479 7681.82 842 820 220.0
D 8 195 164053 742.12 842 820 220.0
D 2 16 150221 679.23 842 820 220.0

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