ASTROSAT CZTI

Data Quality Report

Orbit 11406

Creation date: 2024-06-27T16:12:29.310797
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/AS1G08_066T01_9000001668_11406cztM0_level2.evt modeM0/AS1G08_066T01_9000001668_11406cztM0_level2_quad_clean.evt
Size (bytes)487,618,560105,390,720
Size465.0 MB 100.5 MB
Events in quadrant A3,251,481705,507
Events in quadrant B4,381,904696,051
Events in quadrant C3,057,296683,253
Events in quadrant D3,632,396650,673

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139182
B0172481
C0135651
D0152241

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6548650.992670%
B65483325.070250%
C6548290.442883%
D65481362.076970%

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 7858 6550 0 0 0.00% 0.00%
B 7858 6550 148 148 1.88% 2.26%
C 7858 6550 0 0 0.00% 0.00%
D 7858 6550 78 78 0.99% 1.19%

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 5 35252 207.27 825 808 166.2
A 11 29 18796 108.24 825 808 166.2
A 0 226 7519 40.38 825 808 166.2
B 4 239 1004963 6529.17 815 796 153.8
B 15 204 53409 342.09 815 796 153.8
B 0 218 37733 240.16 815 796 153.8
C 13 61 5718 27.3 784 787 180.6
C 14 234 2292 8.33 784 787 180.6
C 3 202 1901 6.17 784 787 180.6
D 2 14 158100 846.12 776 756 186.0
D 10 253 117730 629.03 776 756 186.0
D 13 172 103745 553.82 776 756 186.0

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