ASTROSAT CZTI

Data Quality Report

Orbit 05596

Creation date: 2024-06-27T14:57:02.637566
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/AS1G06_034T01_9000000722_05596cztM0_level2.evt modeM0/AS1G06_034T01_9000000722_05596cztM0_level2_quad_clean.evt
Size (bytes)507,709,44070,251,840
Size484.2 MB 67.0 MB
Events in quadrant A3,285,221422,527
Events in quadrant B3,429,059420,264
Events in quadrant C3,211,192413,896
Events in quadrant D4,982,023389,392

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141803
B0144212
C0141802
D0194302

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68971081.565898%
B68971261.826881%
C6897841.217921%
D68971902.754821%

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 8597 6898 0 0 0.00% 0.00%
B 8597 6898 0 0 0.00% 0.00%
C 8597 6898 1 1 0.01% 0.01%
D 8597 6899 76 76 0.88% 1.10%

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 14 24689 138.47 842 824 172.3
A 0 50 19650 109.23 842 824 172.3
A 12 194 8186 42.72 842 824 172.3
B 15 204 57447 344.09 851 832 164.5
B 0 219 28218 166.44 851 832 164.5
B 0 214 20151 117.41 851 832 164.5
C 8 79 8368 39.54 817 820 190.9
C 13 61 6513 29.82 817 820 190.9
C 1 16 5892 26.57 817 820 190.9
D 2 63 1189788 5984.25 809 786 198.7
D 11 241 342696 1720.83 809 786 198.7
D 2 136 158901 795.79 809 786 198.7

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