ASTROSAT CZTI

Data Quality Report

Orbit 23453

Creation date: 2024-06-27T18:54:32.179555
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/AS1A07_100T02_9000003470_23453cztM0_level2.evt modeM0/AS1A07_100T02_9000003470_23453cztM0_level2_quad_clean.evt
Size (bytes)541,549,44089,167,680
Size516.5 MB 85.0 MB
Events in quadrant A3,436,033562,180
Events in quadrant B3,696,783564,966
Events in quadrant C3,583,095541,725
Events in quadrant D5,194,401528,332

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149071
B0155801
C0151621
D0201384

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72201381.911357%
B72202333.227147%
C72201832.534626%
D72204586.343490%

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 7435 7220 0 0 0.00% 0.00%
B 7435 7220 42 42 0.56% 0.58%
C 7435 7220 16 16 0.22% 0.22%
D 7435 7220 288 288 3.87% 3.99%

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 15 174 16452 87.44 886 866 178.2
A 13 254 11745 61.03 886 866 178.2
A 0 226 7864 39.26 886 866 178.2
B 5 172 175709 1050.98 876 854 166.4
B 0 229 32836 192.23 876 854 166.4
B 0 228 21127 121.85 876 854 166.4
C 14 238 133758 671.85 849 854 197.8
C 10 9 67257 335.67 849 854 197.8
C 7 247 31906 156.97 849 854 197.8
D 7 238 763783 3635.93 854 827 209.8
D 1 52 641143 3051.48 854 827 209.8
D 12 233 209562 994.74 854 827 209.8

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