ASTROSAT CZTI

Data Quality Report

Orbit 44391

Creation date: 2024-06-27T23:03:00.587219
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/AS1A13_008T05_9000005996_44391cztM0_level2.fits modeM0/AS1A13_008T05_9000005996_44391cztM0_level2_quad_clean.evt
Size (bytes)543,634,560123,468,480
Size518.5 MB 117.7 MB
Events in quadrant A5,571,845832,560
Events in quadrant B4,494,916843,484
Events in quadrant C3,656,883819,178
Events in quadrant D5,802,571707,223

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0229161
B0186731
C0164731
D0226331

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76971181.533065%
B76981932.507145%
C7698430.558587%
D76986067.872175%

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 7727 7699 10 10 0.13% 0.13%
B 7728 7700 95 95 1.23% 1.23%
C 7728 7700 22 22 0.28% 0.29%
D 7728 7699 518 518 6.70% 6.73%

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 10 83 1960571 10548.23 882 863 185.8
A 13 248 85945 457.96 882 863 185.8
A 14 254 44375 234.21 882 863 185.8
B 5 255 474103 2745.55 877 852 172.4
B 5 235 210367 1215.49 877 852 172.4
B 5 172 95996 551.97 877 852 172.4
C 14 254 152797 751.55 858 863 202.2
C 12 250 75134 367.38 858 863 202.2
C 14 96 24141 115.14 858 863 202.2
D 4 221 873824 4086.49 835 807 213.6
D 5 235 502259 2347.24 835 807 213.6
D 2 249 283667 1324.03 835 807 213.6

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