ASTROSAT CZTI

Data Quality Report

Orbit 07295

Creation date: 2024-06-27T15:18:01.281446
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_137T01_9000001000_07295cztM0_level2.evt modeM0/AS1G06_137T01_9000001000_07295cztM0_level2_quad_clean.evt
Size (bytes)417,283,20095,472,000
Size398.0 MB 91.0 MB
Events in quadrant A3,129,845614,305
Events in quadrant B3,001,513645,060
Events in quadrant C2,977,620623,307
Events in quadrant D3,115,861584,937

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133113
B0129612
C0128402
D0135602

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6073410.675119%
B6073350.576321%
C6073210.345793%
D6073520.856249%

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 7433 6074 7 7 0.09% 0.12%
B 7433 6074 1 1 0.01% 0.02%
C 7433 6074 3 3 0.04% 0.05%
D 7433 6074 46 46 0.62% 0.76%

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 291699 1942.48 735 720 149.8
A 0 226 7041 42.2 735 720 149.8
A 15 239 6766 40.36 735 720 149.8
B 0 214 43157 300.24 755 738 141.3
B 4 81 20072 136.84 755 738 141.3
B 12 111 14388 96.61 755 738 141.3
C 9 68 74010 436.59 724 729 167.8
C 1 16 69776 411.36 724 729 167.8
C 12 4 5753 29.93 724 729 167.8
D 2 14 247816 1409.65 712 690 175.3
D 14 34 55785 314.27 712 690 175.3
D 12 173 49773 279.98 712 690 175.3

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