ASTROSAT CZTI

Data Quality Report

Orbit 33153

Creation date: 2024-06-27T20:45:30.877883
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/AS1A11_096T01_9000004766_33153cztM0_level2.evt modeM0/AS1A11_096T01_9000004766_33153cztM0_level2_quad_clean.evt
Size (bytes)527,175,36085,982,400
Size502.8 MB 82.0 MB
Events in quadrant A2,675,244566,958
Events in quadrant B4,094,097565,239
Events in quadrant C3,000,011551,922
Events in quadrant D5,799,176510,180

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118523
B0161852
C0128422
D0213952

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A586370.119393%
B58634397.487634%
C5863951.620331%
D58633856.566604%

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 7204 5864 0 0 0.00% 0.00%
B 7204 5864 122 122 1.69% 2.08%
C 7204 5864 74 74 1.03% 1.26%
D 7204 5864 289 289 4.01% 4.93%

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 13 6 10236 69.13 686 672 138.4
A 13 254 10091 68.08 686 672 138.4
A 0 31 7796 51.49 686 672 138.4
B 0 219 659316 5140.22 671 654 128.1
B 5 172 329057 2562.87 671 654 128.1
B 0 189 202046 1571.67 671 654 128.1
C 0 10 210781 1359.75 664 670 154.5
C 1 241 112008 720.53 664 670 154.5
C 9 187 21361 133.9 664 670 154.5
D 8 195 1777015 10872.76 646 630 163.4
D 2 250 649689 3972.71 646 630 163.4
D 2 249 422928 2584.77 646 630 163.4

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