ASTROSAT CZTI

Data Quality Report

Orbit 33308

Creation date: 2024-06-27T20:47:19.606256
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/AS1T04_072T01_9000004780_33308cztM0_level2.evt modeM0/AS1T04_072T01_9000004780_33308cztM0_level2_quad_clean.evt
Size (bytes)559,002,24085,224,960
Size533.1 MB 81.3 MB
Events in quadrant A2,661,818594,680
Events in quadrant B3,396,865587,737
Events in quadrant C6,543,032515,870
Events in quadrant D3,993,498535,200

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0106253
B0132432
C0229972
D0154992

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4950120.242424%
B49501643.313131%
C495095119.212121%
D49501422.868687%

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 7103 4951 0 0 0.00% 0.00%
B 7103 4951 118 118 1.66% 2.38%
C 7103 4951 782 782 11.01% 15.79%
D 7103 4951 123 123 1.73% 2.48%

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 15 169 42353 310.64 676 664 134.2
A 13 6 8814 60.73 676 664 134.2
A 13 254 7778 53.01 676 664 134.2
B 5 172 550619 4499.27 660 647 122.2
B 0 219 130449 1061.9 660 647 122.2
B 15 85 46208 372.73 660 647 122.2
C 10 49 3654511 27022.41 599 606 135.2
C 15 214 222491 1640.95 599 606 135.2
C 0 10 113312 833.52 599 606 135.2
D 8 195 749665 4856.18 638 622 154.2
D 2 250 227414 1470.33 638 622 154.2
D 12 6 131651 849.48 638 622 154.2

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