ASTROSAT CZTI

Data Quality Report

Orbit 09596

Creation date: 2024-06-27T15:48:10.631009
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/AS1G05_238T01_9000001364_09596cztM0_level2.evt modeM0/AS1G05_238T01_9000001364_09596cztM0_level2_quad_clean.evt
Size (bytes)540,990,72073,693,440
Size515.9 MB 70.3 MB
Events in quadrant A4,139,460452,949
Events in quadrant B3,543,857457,407
Events in quadrant C3,276,951440,139
Events in quadrant D4,981,020425,252

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0165833
B0143442
C0136092
D0189672

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65331973.015460%
B65331111.699066%
C6533620.949028%
D65333926.000306%

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 7853 6534 5 5 0.06% 0.08%
B 7853 6534 6 6 0.08% 0.09%
C 7853 6534 0 0 0.00% 0.00%
D 7853 6534 340 340 4.33% 5.20%

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 1 162 287721 1625.65 883 870 176.5
A 1 178 144222 812.41 883 870 176.5
A 1 161 137433 773.93 883 870 176.5
B 0 214 58372 349.26 875 858 164.7
B 0 189 35220 208.66 875 858 164.7
B 15 85 20970 122.13 875 858 164.7
C 13 61 6201 27.61 840 847 193.9
C 14 67 2121 6.57 840 847 193.9
C 3 202 2091 6.42 840 847 193.9
D 1 52 1288118 6066.66 838 817 212.2
D 13 122 247336 1161.77 838 817 212.2
D 12 233 93029 434.56 838 817 212.2

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