ASTROSAT CZTI

Data Quality Report

Orbit 24247

Creation date: 2024-06-27T19:03:56.624017
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_118T01_9000003586_24247cztM0_level2.evt modeM0/AS1A07_118T01_9000003586_24247cztM0_level2_quad_clean.evt
Size (bytes)524,721,60093,833,280
Size500.4 MB 89.5 MB
Events in quadrant A3,297,892606,351
Events in quadrant B3,566,032623,174
Events in quadrant C4,045,245592,211
Events in quadrant D4,537,539562,909

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138761
B0146511
C0160721
D0176111

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6556771.174497%
B65561422.165955%
C65561832.791336%
D65564737.214765%

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 7641 6556 11 11 0.14% 0.17%
B 7641 6556 48 48 0.63% 0.73%
C 7641 6556 57 57 0.75% 0.87%
D 7641 6556 367 367 4.80% 5.60%

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 6 16 37446 216.37 839 822 169.3
A 12 96 22022 125.25 839 822 169.3
A 13 254 10027 54.38 839 822 169.3
B 0 245 162622 1022.84 833 815 158.2
B 0 230 85635 536.18 833 815 158.2
B 4 171 24071 147.01 833 815 158.2
C 7 247 573476 3019.6 809 817 189.6
C 2 16 190180 998.5 809 817 189.6
C 14 238 126798 664.29 809 817 189.6
D 12 233 924765 4766.95 795 773 193.8
D 8 195 396040 2039.22 795 773 193.8
D 1 52 173288 890.02 795 773 193.8

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