ASTROSAT CZTI

Data Quality Report

Orbit 44345

Creation date: 2024-06-27T23:02:27.978642
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_008T06_9000005994_44345cztM0_level2.fits modeM0/AS1A13_008T06_9000005994_44345cztM0_level2_quad_clean.evt
Size (bytes)261,938,88059,699,520
Size249.8 MB 56.9 MB
Events in quadrant A3,219,789374,916
Events in quadrant B2,051,159415,321
Events in quadrant C1,774,808405,893
Events in quadrant D2,372,371359,573

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124071
B084231
C076861
D094531

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A355742111.835817%
B35571434.020242%
C3557401.124543%
D35572135.988192%

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 4607 3557 200 200 4.34% 5.62%
B 4607 3557 11 11 0.24% 0.31%
C 4607 3558 0 0 0.00% 0.00%
D 4607 3558 133 133 2.89% 3.74%

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 933284 10277.06 428 419 90.8
A 13 248 603923 6648.6 428 419 90.8
A 0 243 11106 117.74 428 419 90.8
B 15 36 60860 673.09 441 428 89.8
B 0 229 40832 450.02 441 428 89.8
B 0 199 38602 425.18 441 428 89.8
C 14 96 43781 416.07 432 435 104.2
C 14 254 30652 290.05 432 435 104.2
C 3 233 7633 69.09 432 435 104.2
D 13 249 428972 3913.45 425 411 109.5
D 2 153 121752 1108.04 425 411 109.5
D 5 171 77141 700.67 425 411 109.5

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