ASTROSAT CZTI

Data Quality Report

Orbit 04105

Creation date: 2024-06-27T14:37:28.797160
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/AS1G05_191T01_9000000524_04105cztM0_level2.evt modeM0/AS1G05_191T01_9000000524_04105cztM0_level2_quad_clean.evt
Size (bytes)453,663,36066,343,680
Size432.6 MB 63.3 MB
Events in quadrant A3,318,349393,430
Events in quadrant B3,531,151388,015
Events in quadrant C3,088,131384,854
Events in quadrant D3,346,064375,251

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141283
B0146152
C0137162
D0146582

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6700731.089552%
B67001241.850746%
C6700400.597015%
D67001432.134328%

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 7625 6700 8 8 0.10% 0.12%
B 7625 6700 51 51 0.67% 0.76%
C 7625 6700 0 0 0.00% 0.00%
D 7625 6700 94 94 1.23% 1.40%

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 0 50 120472 723.93 805 789 165.3
A 0 199 84669 507.37 805 789 165.3
A 0 226 15513 89.06 805 789 165.3
B 14 167 310897 1989.17 810 792 155.9
B 15 204 75591 479.8 810 792 155.9
B 12 111 14157 85.73 810 792 155.9
C 9 144 45204 244.67 778 784 181.5
C 13 61 6310 30.44 778 784 181.5
C 9 175 4177 18.69 778 784 181.5
D 10 172 317808 1696.4 770 747 186.9
D 2 14 33507 175.28 770 747 186.9
D 13 223 33161 173.43 770 747 186.9

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