ASTROSAT CZTI

Data Quality Report

Orbit 06732

Creation date: 2024-06-27T15:10:54.736319
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/AS1C02_003T01_9000000924_06732cztM0_level2.evt modeM0/AS1C02_003T01_9000000924_06732cztM0_level2_quad_clean.evt
Size (bytes)449,026,56093,749,760
Size428.2 MB 89.4 MB
Events in quadrant A3,224,472597,750
Events in quadrant B3,361,959608,879
Events in quadrant C3,141,740588,839
Events in quadrant D3,399,856561,296

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145683
B0148482
C0143712
D0152552

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6918711.026308%
B6918971.402139%
C6918220.318011%
D6918680.982943%

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 9218 6919 0 0 0.00% 0.00%
B 9218 6919 20 20 0.22% 0.29%
C 9218 6919 0 0 0.00% 0.00%
D 9218 6919 24 24 0.26% 0.35%

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 8 15 39184 230.92 812 794 166.2
A 14 111 34773 204.39 812 794 166.2
A 13 251 27502 160.65 812 794 166.2
B 4 81 166735 1055.79 823 805 157.2
B 12 111 16354 98.94 823 805 157.2
B 11 111 12911 77.03 823 805 157.2
C 12 16 34474 183.0 792 794 184.0
C 9 16 8214 40.32 792 794 184.0
C 13 61 6240 29.59 792 794 184.0
D 2 152 109156 564.91 782 759 191.9
D 8 195 99802 516.16 782 759 191.9
D 2 33 85398 441.09 782 759 191.9

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