ASTROSAT CZTI

Data Quality Report

Orbit 07645

Creation date: 2024-06-27T15:22:14.349505
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/AS1G06_124T01_9000001054_07645cztM0_level2.evt modeM0/AS1G06_124T01_9000001054_07645cztM0_level2_quad_clean.evt
Size (bytes)470,747,52079,686,720
Size448.9 MB 76.0 MB
Events in quadrant A3,362,535481,458
Events in quadrant B3,423,645487,323
Events in quadrant C3,341,404482,960
Events in quadrant D3,643,796464,140

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147422
B0148271
C0147361
D0157581

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7142941.316158%
B7142941.316158%
C7142490.686082%
D71421151.610193%

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 8947 7144 0 0 0.00% 0.00%
B 8947 7144 1 1 0.01% 0.01%
C 8947 7144 0 0 0.00% 0.00%
D 8947 7144 33 33 0.37% 0.46%

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 0 226 8107 40.56 871 851 178.9
A 12 194 7825 38.98 871 851 178.9
A 3 1 4317 19.37 871 851 178.9
B 12 111 17308 98.29 870 849 167.5
B 0 214 16111 91.14 870 849 167.5
B 11 111 13963 78.31 870 849 167.5
C 9 68 40145 198.01 845 848 198.5
C 13 61 6517 28.56 845 848 198.5
C 8 222 2542 8.54 845 848 198.5
D 13 104 134042 641.22 844 818 207.8
D 14 34 100416 479.37 844 818 207.8
D 2 152 99806 476.44 844 818 207.8

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