ASTROSAT CZTI

Data Quality Report

Orbit 09340

Creation date: 2024-06-27T15:44:42.546800
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_022T01_9000001322_09340cztM0_level2.evt modeM0/AS1G07_022T01_9000001322_09340cztM0_level2_quad_clean.evt
Size (bytes)619,223,040108,953,280
Size590.5 MB 103.9 MB
Events in quadrant A5,030,871687,369
Events in quadrant B4,245,813687,136
Events in quadrant C4,742,733664,950
Events in quadrant D4,158,473670,670

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020675219
B018608221
C020459293
D018748152

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01740
B01746
C01744
D01742

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A84882072.438737%
B84881982.332705%
C84803604.245283%
D85071862.186435%

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 9371 8570 41 41 0.44% 0.48%
B 9371 8572 20 20 0.21% 0.23%
C 9371 8566 138 138 1.47% 1.61%
D 9371 8575 71 71 0.76% 0.83%

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 952588 4729.27 988 965 201.2
A 13 251 94477 464.73 988 965 201.2
A 5 16 83436 409.86 988 965 201.2
B 10 245 124465 643.83 995 969 191.8
B 0 214 66318 340.69 995 969 191.8
B 0 230 66107 339.59 995 969 191.8
C 4 254 1000803 4552.04 949 950 219.6
C 10 22 17078 73.43 949 950 219.6
C 14 67 10029 41.33 949 950 219.6
D 7 71 203556 812.63 960 934 249.3
D 8 195 80851 320.51 960 934 249.3
D 1 52 74815 296.3 960 934 249.3

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