ASTROSAT CZTI

Data Quality Report

Orbit 24573

Creation date: 2024-06-27T19:07:26.155265
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/AS1T03_183T01_9000003610_24573cztM0_level2.evt modeM0/AS1T03_183T01_9000003610_24573cztM0_level2_quad_clean.evt
Size (bytes)445,720,32092,715,840
Size425.1 MB 88.4 MB
Events in quadrant A2,872,605609,349
Events in quadrant B3,011,736616,432
Events in quadrant C3,041,217588,969
Events in quadrant D4,164,702573,057

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124160
B0127600
C0129640
D0165310

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6014510.848021%
B6014771.280346%
C6014981.629531%
D60141061.762554%

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 7004 6015 0 0 0.00% 0.00%
B 7004 6014 12 12 0.17% 0.20%
C 7004 6014 2 2 0.03% 0.03%
D 7004 6014 65 65 0.93% 1.08%

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 13 254 9109 56.05 745 729 149.5
A 3 137 6611 39.34 745 729 149.5
A 0 226 6274 37.09 745 729 149.5
B 3 64 86881 614.98 737 720 140.1
B 12 111 16588 113.26 737 720 140.1
B 7 202 15903 108.37 737 720 140.1
C 14 238 114799 691.15 711 716 165.1
C 10 9 76901 461.55 711 716 165.1
C 7 247 31197 184.66 711 716 165.1
D 8 195 838815 4794.36 723 701 174.8
D 1 255 243133 1386.81 723 701 174.8
D 12 218 220095 1255.02 723 701 174.8

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