ASTROSAT CZTI

Data Quality Report

Orbit 07194

Creation date: 2024-06-27T15:16:38.304137
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/AS1A02_073T02_9000000982_07194cztM0_level2.evt modeM0/AS1A02_073T02_9000000982_07194cztM0_level2_quad_clean.evt
Size (bytes)467,452,80091,926,720
Size445.8 MB 87.7 MB
Events in quadrant A3,161,422585,226
Events in quadrant B3,293,083601,951
Events in quadrant C3,082,539587,163
Events in quadrant D4,171,164549,108

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136843
B0139862
C0136512
D0170542

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6604630.953967%
B6604731.105391%
C6604380.575409%
D66041722.604482%

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 7864 6605 0 0 0.00% 0.00%
B 7864 6604 6 6 0.08% 0.09%
C 7864 6606 0 0 0.00% 0.00%
D 7864 6605 128 128 1.63% 1.94%

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 13 14 10704 60.03 815 797 165.0
A 14 111 7771 42.26 815 797 165.0
A 0 226 7617 41.33 815 797 165.0
B 0 214 65081 413.42 820 803 155.5
B 0 187 16155 98.74 820 803 155.5
B 12 111 15458 94.26 820 803 155.5
C 13 61 6058 28.76 789 792 183.1
C 9 68 3484 14.7 789 792 183.1
C 14 67 2857 11.28 789 792 183.1
D 2 216 334712 1753.81 778 757 190.4
D 8 195 318720 1669.82 778 757 190.4
D 14 34 309767 1622.8 778 757 190.4

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