ASTROSAT CZTI

Data Quality Report

Orbit 30617

Creation date: 2024-06-27T20:17:45.476326
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/AS1A10_071T05_9000004412_30617cztM0_level2.evt modeM0/AS1A10_071T05_9000004412_30617cztM0_level2_quad_clean.evt
Size (bytes)608,448,960109,696,320
Size580.3 MB 104.6 MB
Events in quadrant A3,492,391742,500
Events in quadrant B5,228,656734,954
Events in quadrant C3,583,618698,198
Events in quadrant D5,669,317679,537

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144571
B0204391
C0146491
D0216791

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66991201.791312%
B67001822.716418%
C67002063.074627%
D67002343.492537%

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 7629 6700 0 0 0.00% 0.00%
B 7630 6701 2 2 0.03% 0.03%
C 7630 6701 25 25 0.33% 0.37%
D 7630 6701 128 128 1.68% 1.91%

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 13 29779 161.37 895 880 179.1
A 13 254 12262 63.55 895 880 179.1
A 8 192 11061 56.85 895 880 179.1
B 6 159 1782244 10690.37 870 851 166.6
B 12 111 19966 114.71 870 851 166.6
B 11 111 18515 106.0 870 851 166.6
C 0 10 135881 687.35 837 844 196.5
C 14 238 135782 686.85 837 844 196.5
C 3 233 27084 133.56 837 844 196.5
D 8 195 1447407 7051.47 860 840 205.1
D 1 52 381918 1857.61 860 840 205.1
D 2 250 301078 1463.55 860 840 205.1

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