ASTROSAT CZTI

Data Quality Report

Orbit 20013

Creation date: 2024-06-27T18:10:05.524013
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/AS1C04_001T01_9000002984_20013cztM0_level2.evt modeM0/AS1C04_001T01_9000002984_20013cztM0_level2_quad_clean.evt
Size (bytes)126,253,44011,874,240
Size120.4 MB 11.3 MB
Events in quadrant A936,26860,167
Events in quadrant B841,75961,575
Events in quadrant C824,19959,682
Events in quadrant D1,109,36758,780

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A037311
B034111
C033801
D043241

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1610603.726708%
B1610382.360248%
C1610321.987578%
D1610955.900621%

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 2610 1611 14 14 0.54% 0.87%
B 2610 1611 0 0 0.00% 0.00%
C 2610 1611 0 0 0.00% 0.00%
D 2610 1611 64 64 2.45% 3.97%

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 14 238 115651 2594.68 213 209 44.5
A 13 254 1841 36.68 213 209 44.5
A 0 226 1805 35.87 213 209 44.5
B 12 111 4954 111.92 212 206 42.4
B 11 111 4428 99.52 212 206 42.4
B 14 111 4041 90.4 212 206 42.4
C 14 238 31853 652.73 200 201 48.5
C 3 233 4083 80.05 200 201 48.5
C 0 207 3306 64.03 200 201 48.5
D 12 218 234884 4735.46 200 193 49.6
D 1 52 78592 1581.89 200 193 49.6
D 7 96 15125 301.29 200 193 49.6

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