ASTROSAT CZTI

Data Quality Report

Orbit 19222

Creation date: 2024-06-27T18:00:25.062338
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/AS1A05_075T10_9000002842_19222cztM0_level2.evt modeM0/AS1A05_075T10_9000002842_19222cztM0_level2_quad_clean.evt
Size (bytes)248,757,12052,536,960
Size237.2 MB 50.1 MB
Events in quadrant A1,624,950343,568
Events in quadrant B1,683,383356,650
Events in quadrant C1,853,936346,771
Events in quadrant D2,167,049330,978

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0600
B0600
C0600
D0600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A067991
B069291
C076481
D084661

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2990551.839465%
B2991722.407222%
C29911103.677700%
D2991561.872284%

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 4310 2991 1 1 0.02% 0.03%
B 4311 2992 0 0 0.00% 0.00%
C 4311 2991 1 1 0.02% 0.03%
D 4311 2992 10 10 0.23% 0.33%

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 9 143 16931 197.66 415 407 83.6
A 11 29 8810 100.51 415 407 83.6
A 13 254 3940 42.26 415 407 83.6
B 3 64 28167 354.28 420 411 78.3
B 12 111 8900 108.35 420 411 78.3
B 11 111 7779 94.04 420 411 78.3
C 3 233 172686 1782.12 414 418 96.7
C 14 238 64843 666.48 414 418 96.7
C 13 61 2833 24.98 414 418 96.7
D 1 52 486744 4846.75 418 406 100.3
D 11 176 90685 899.7 418 406 100.3
D 2 234 13404 129.54 418 406 100.3

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