ASTROSAT CZTI

Data Quality Report

Orbit 10700

Creation date: 2024-06-27T16:02:41.968097
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/AS1A03_053T01_9000001542_10700cztM0_level2.evt modeM0/AS1A03_053T01_9000001542_10700cztM0_level2_quad_clean.evt
Size (bytes)652,763,52087,672,960
Size622.5 MB 83.6 MB
Events in quadrant A3,934,510540,528
Events in quadrant B5,289,605535,791
Events in quadrant C3,627,162541,192
Events in quadrant D6,385,788490,819

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0169993
B0208742
C0164092
D0242252

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78531451.846428%
B78535176.583471%
C7853700.891379%
D78534485.704826%

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 8833 7855 19 19 0.22% 0.24%
B 8833 7855 224 224 2.54% 2.85%
C 8833 7855 1 1 0.01% 0.01%
D 8833 7855 330 330 3.74% 4.20%

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 15 174 155019 797.09 947 926 193.3
A 14 254 29151 146.0 947 926 193.3
A 4 2 27370 136.79 947 926 193.3
B 4 239 1300442 7126.62 936 912 182.3
B 0 168 102815 558.83 936 912 182.3
B 15 204 67630 365.88 936 912 182.3
C 8 128 10677 45.17 920 925 215.9
C 14 234 9551 39.95 920 925 215.9
C 13 61 6858 27.48 920 925 215.9
D 2 16 1244835 5674.33 895 868 219.2
D 10 199 914323 4166.71 895 868 219.2
D 8 195 375387 1708.36 895 868 219.2

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