ASTROSAT CZTI

Data Quality Report

Orbit 43063

Creation date: 2024-06-27T22:47:32.247945
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/AS1C07_001T10_9000005844_43063cztM0_level2.fits modeM0/AS1C07_001T10_9000005844_43063cztM0_level2_quad_clean.evt
Size (bytes)56,825,28015,053,760
Size54.2 MB 14.4 MB
Events in quadrant A583,56396,761
Events in quadrant B396,322100,565
Events in quadrant C429,52998,451
Events in quadrant D620,14489,712

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A023231
B018201
C018381
D024371

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A909101.100110%
B90930.330033%
C90910.110011%
D909192.090209%

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 909 909 5 5 0.55% 0.55%
B 909 909 0 0 0.00% 0.00%
C 909 909 0 0 0.00% 0.00%
D 909 909 19 19 2.09% 2.09%

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 161662 7098.32 100 97 22.8
A 15 222 18736 818.9 100 97 22.8
A 15 237 7826 339.57 100 97 22.8
B 12 111 2634 114.95 100 97 22.1
B 11 111 2439 106.11 100 97 22.1
B 14 111 2308 100.18 100 97 22.1
C 15 214 45442 1839.14 97 97 24.7
C 3 233 2310 89.76 97 97 24.7
C 14 67 674 23.4 97 97 24.7
D 13 171 143258 5631.02 95 91 25.4
D 2 16 86327 3391.82 95 91 25.4
D 1 52 23406 917.02 95 91 25.4

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