ASTROSAT CZTI

Data Quality Report

Orbit 45395

Creation date: 2024-06-27T23:10:44.709850
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_049T06_9000006054_45395cztM0_level2.fits modeM0/AS1A13_049T06_9000006054_45395cztM0_level2_quad_clean.evt
Size (bytes)580,017,600108,967,680
Size553.1 MB 103.9 MB
Events in quadrant A6,077,204721,002
Events in quadrant B3,596,724748,695
Events in quadrant C3,847,652730,611
Events in quadrant D7,411,232615,500

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0223521
B0154551
C0163281
D0268351

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69392733.934284%
B69402183.141210%
C69401452.089337%
D694091013.112392%

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 7164 6940 55 55 0.77% 0.79%
B 7165 6940 36 36 0.50% 0.52%
C 7165 6941 72 72 1.00% 1.04%
D 7165 6941 754 754 10.52% 10.86%

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 2699396 16338.79 786 768 165.2
A 9 191 152682 919.76 786 768 165.2
A 7 3 118874 715.07 786 768 165.2
B 15 201 219730 1388.12 784 759 157.7
B 0 186 54259 339.15 784 759 157.7
B 4 67 46672 291.06 784 759 157.7
C 14 254 658809 3589.02 769 774 183.3
C 3 233 63094 339.9 769 774 183.3
C 0 239 53324 286.62 769 774 183.3
D 1 52 3068334 16134.87 743 720 190.1
D 2 249 587574 3086.7 743 720 190.1
D 5 222 250654 1314.59 743 720 190.1

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