ASTROSAT CZTI

Data Quality Report

Orbit 07467

Creation date: 2024-06-27T15:20:08.623650
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/AS1G06_116T01_9000001026_07467cztM0_level2.evt modeM0/AS1G06_116T01_9000001026_07467cztM0_level2_quad_clean.evt
Size (bytes)447,808,320126,288,000
Size427.1 MB 120.4 MB
Events in quadrant A3,048,948856,801
Events in quadrant B3,352,207866,371
Events in quadrant C2,973,450850,372
Events in quadrant D3,755,706808,364

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131522
B0142581
C0130061
D0151471

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6347671.055617%
B63471051.654325%
C6347510.803529%
D63471201.890657%

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 7602 6348 0 0 0.00% 0.00%
B 7602 6348 22 22 0.29% 0.35%
C 7602 6347 0 0 0.00% 0.00%
D 7602 6348 46 46 0.61% 0.72%

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 8 15 25951 161.29 777 763 156.2
A 15 239 17397 106.51 777 763 156.2
A 0 226 7481 43.02 777 763 156.2
B 4 173 187599 1298.16 779 760 143.9
B 0 214 125041 863.51 779 760 143.9
B 12 111 13864 91.05 779 760 143.9
C 13 61 5981 30.2 759 762 172.8
C 12 4 4165 19.69 759 762 172.8
C 9 68 3656 16.74 759 762 172.8
D 12 221 181430 992.87 757 734 182.0
D 8 195 158047 864.39 757 734 182.0
D 2 14 119553 652.88 757 734 182.0

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