ASTROSAT CZTI

Data Quality Report

Orbit 22318

Creation date: 2024-06-27T18:39:23.648803
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/AS1A07_149T01_9000003304_22318cztM0_level2.evt modeM0/AS1A07_149T01_9000003304_22318cztM0_level2_quad_clean.evt
Size (bytes)445,256,640114,514,560
Size424.6 MB 109.2 MB
Events in quadrant A3,167,878758,693
Events in quadrant B3,274,322792,912
Events in quadrant C3,285,516746,645
Events in quadrant D3,314,858716,350

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135702
B0137982
C0137262
D0141092

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6505300.461184%
B6505420.645657%
C6505640.983859%
D6505320.491929%

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 7800 6506 0 0 0.00% 0.00%
B 7800 6506 0 0 0.00% 0.00%
C 7800 6505 0 0 0.00% 0.00%
D 7800 6506 12 12 0.15% 0.18%

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 13 254 9074 50.47 822 806 163.8
A 0 226 7040 38.05 822 806 163.8
A 3 137 6724 36.12 822 806 163.8
B 12 111 18227 112.58 835 817 154.6
B 11 111 15865 97.31 835 817 154.6
B 14 111 14721 89.91 835 817 154.6
C 14 238 130516 698.73 805 810 185.6
C 0 10 12912 65.19 805 810 185.6
C 13 61 5696 26.32 805 810 185.6
D 1 52 159156 828.97 800 779 191.1
D 11 66 47848 246.37 800 779 191.1
D 2 136 30309 154.56 800 779 191.1

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