ASTROSAT CZTI

Data Quality Report

Orbit 29698

Creation date: 2024-06-27T20:06:57.576373
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/AS1A10_007T01_9000004276_29698cztM0_level2.evt modeM0/AS1A10_007T01_9000004276_29698cztM0_level2_quad_clean.evt
Size (bytes)632,085,12065,554,560
Size602.8 MB 62.5 MB
Events in quadrant A3,322,852388,245
Events in quadrant B5,551,100383,078
Events in quadrant C3,516,859379,709
Events in quadrant D6,296,074363,594

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141401
B0210081
C0146171
D0236012

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6743540.800830%
B67431722.550793%
C67431592.358001%
D67445848.659549%

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 7763 6743 0 0 0.00% 0.00%
B 7763 6743 55 55 0.71% 0.82%
C 7763 6743 6 6 0.08% 0.09%
D 7764 6744 432 432 5.56% 6.41%

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 13402 72.12 861 845 174.1
A 3 137 8449 43.67 861 845 174.1
A 0 226 7254 36.81 861 845 174.1
B 6 159 1934541 11992.29 844 824 161.2
B 0 229 177461 1095.45 844 824 161.2
B 10 245 58657 358.66 844 824 161.2
C 14 238 152074 786.6 824 831 192.3
C 3 233 42216 215.24 824 831 192.3
C 10 22 41697 212.54 824 831 192.3
D 7 80 1343148 6873.76 816 794 195.3
D 8 195 951588 4868.71 816 794 195.3
D 7 238 724457 3705.65 816 794 195.3

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