ASTROSAT CZTI

Data Quality Report

Orbit 20230327_T05_070T01_9000005544_level2

Creation date: 2023-03-29T11:14:50.155874
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/AS1T05_070T01_9000005544cztM0_level2.fits modeM0/AS1T05_070T01_9000005544cztM0_level2_quad_clean.evt
Size (bytes)692,262,720694,120,320
Size660.2 MB 662.0 MB
Events in quadrant A4,220,7364,178,572
Events in quadrant B4,058,2804,203,064
Events in quadrant C4,161,8024,051,503
Events in quadrant D3,165,3203,235,069

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01699510
B01699180
C01694440
D02091080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03280
B03280
C03280
D03290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015860
B015840
C015840
D015830

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A780772040.261281%
B780547220.925001%
C781225950.761629%
D780401408018.042030%

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 121306 78347 0 0 0.00% 0.00%
B 121306 78339 0 0 0.00% 0.00%
C 121306 78446 0 0 0.00% 0.00%
D 121306 77828 0 0 0.00% 0.00%

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 7 110 3461 8.95 1101 1035 271.1
A 9 19 3431 8.84 1101 1035 271.1
A 0 29 3391 8.69 1101 1035 271.1
B 2 9 3545 12.18 1073 1025 206.9
B 3 80 2934 9.23 1073 1025 206.9
B 2 8 2768 8.42 1073 1025 206.9
C 1 81 3466 8.57 1099 1028 284.3
C 1 80 3404 8.36 1099 1028 284.3
C 3 203 3253 7.83 1099 1028 284.3
D 10 189 2437 5.95 920 836 269.0
D 4 160 2385 5.76 920 836 269.0
D 6 231 2372 5.71 920 836 269.0

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