ASTROSAT CZTI

Data Quality Report

Orbit 08512

Creation date: 2024-06-27T15:33:42.338639
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_060T01_9000001200_08512cztM0_level2.evt modeM0/AS1G07_060T01_9000001200_08512cztM0_level2_quad_clean.evt
Size (bytes)418,498,56072,241,920
Size399.1 MB 68.9 MB
Events in quadrant A3,018,436440,338
Events in quadrant B3,271,711444,837
Events in quadrant C2,940,230433,683
Events in quadrant D3,003,806417,494

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01331610
B0138794
C01323611
D0136055

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6462691.067781%
B64641171.810025%
C6461360.557189%
D6464630.974629%

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 7605 6466 2 2 0.03% 0.03%
B 7605 6466 28 28 0.37% 0.43%
C 7605 6466 0 0 0.00% 0.00%
D 7605 6466 28 28 0.37% 0.43%

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 5 16 23577 144.87 777 760 157.5
A 0 226 7197 40.87 777 760 157.5
A 12 194 6731 37.91 777 760 157.5
B 10 16 114782 766.09 780 762 148.8
B 15 255 47877 316.56 780 762 148.8
B 0 214 43333 286.03 780 762 148.8
C 13 61 5682 28.26 752 756 174.3
C 14 67 2869 12.12 752 756 174.3
C 7 238 2751 11.44 752 756 174.3
D 1 52 72011 384.65 742 723 185.3
D 13 169 22622 118.16 742 723 185.3
D 2 234 19320 100.35 742 723 185.3

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