ASTROSAT CZTI

Data Quality Report

Orbit 30007

Creation date: 2024-06-27T20:09:48.173847
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_071T01_9000004310_30007cztM0_level2.evt modeM0/AS1A10_071T01_9000004310_30007cztM0_level2_quad_clean.evt
Size (bytes)720,936,00071,671,680
Size687.5 MB 68.4 MB
Events in quadrant A3,675,561457,924
Events in quadrant B7,890,494444,399
Events in quadrant C3,992,494429,834
Events in quadrant D5,839,928387,135

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147022
B0280292
C0163842
D0217112

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6455941.456235%
B645569310.735864%
C64551462.261813%
D645564910.054222%

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 7785 6456 1 1 0.01% 0.02%
B 7785 6456 145 145 1.86% 2.25%
C 7785 6456 0 0 0.00% 0.00%
D 7785 6456 479 479 6.15% 7.42%

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 8 192 30245 157.08 944 930 186.6
A 13 254 10897 53.41 944 930 186.6
A 3 137 8647 41.35 944 930 186.6
B 6 36 2555679 14976.47 912 894 170.6
B 6 159 1728703 10128.63 912 894 170.6
B 12 111 20546 115.2 912 894 170.6
C 3 233 393846 1931.84 882 891 203.4
C 14 238 145415 710.51 882 891 203.4
C 2 114 15100 69.85 882 891 203.4
D 7 80 2349201 11648.24 856 839 201.6
D 8 195 175260 865.15 856 839 201.6
D 11 135 55112 269.2 856 839 201.6

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