ASTROSAT CZTI

Data Quality Report

Orbit 45030

Creation date: 2024-06-27T23:09:11.928553
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_020T01_9000006040_45030cztM0_level2.fits modeM0/AS1A13_020T01_9000006040_45030cztM0_level2_quad_clean.evt
Size (bytes)751,426,560113,333,760
Size716.6 MB 108.1 MB
Events in quadrant A5,998,085804,464
Events in quadrant B4,795,485801,127
Events in quadrant C4,372,183767,198
Events in quadrant D12,066,465533,611

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0233631
B0194020
C0185270
D0410960

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7539991.313172%
B75403584.748011%
C75403805.039788%
D7540242332.135279%

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 7539 7539 10 10 0.13% 0.13%
B 7540 7540 194 194 2.57% 2.57%
C 7540 7540 208 208 2.76% 2.76%
D 7540 7540 2195 2195 29.11% 29.11%

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 2633356 14774.38 847 830 178.2
A 0 243 48755 268.97 847 830 178.2
A 13 248 42923 236.24 847 830 178.2
B 0 189 511517 3085.74 835 809 165.5
B 5 255 340976 2055.32 835 809 165.5
B 4 171 275400 1659.1 835 809 165.5
C 14 254 1080892 5627.85 813 819 191.9
C 12 2 37262 189.89 813 819 191.9
C 2 14 26719 134.96 813 819 191.9
D 13 174 4209342 22894.31 717 695 183.8
D 5 235 1567192 8521.47 717 695 183.8
D 1 52 1128398 6134.51 717 695 183.8

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