ASTROSAT CZTI

Data Quality Report

Orbit 05150

Creation date: 2024-06-27T14:51:59.449840
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_102T01_9000000650_05150cztM0_level2.evt modeM0/AS1G05_102T01_9000000650_05150cztM0_level2_quad_clean.evt
Size (bytes)439,300,80064,823,040
Size418.9 MB 61.8 MB
Events in quadrant A3,103,512377,038
Events in quadrant B3,365,861379,251
Events in quadrant C3,133,399377,051
Events in quadrant D3,241,379357,560

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138403
B0143582
C0139572
D0146192

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6771190.280608%
B6771430.635061%
C6771280.413528%
D6771681.004283%

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 8946 6773 0 0 0.00% 0.00%
B 8946 6773 1 1 0.01% 0.01%
C 8946 6773 0 0 0.00% 0.00%
D 8946 6773 19 19 0.21% 0.28%

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 16515 95.16 802 786 165.3
A 0 226 7911 43.11 802 786 165.3
A 12 194 7844 42.7 802 786 165.3
B 8 3 98866 630.64 817 799 155.5
B 15 204 27290 170.36 817 799 155.5
B 4 80 26688 166.48 817 799 155.5
C 1 16 79762 435.38 782 788 181.4
C 13 61 6235 30.03 782 788 181.4
C 3 202 1944 6.37 782 788 181.4
D 2 33 109767 573.27 773 749 190.2
D 12 110 104314 544.59 773 749 190.2
D 2 136 36881 190.0 773 749 190.2

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