ASTROSAT CZTI

Data Quality Report

Orbit 05148

Creation date: 2024-06-27T14:51:58.790689
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_05148cztM0_level2.evt modeM0/AS1G05_102T01_9000000650_05148cztM0_level2_quad_clean.evt
Size (bytes)428,780,16069,079,680
Size408.9 MB 65.9 MB
Events in quadrant A3,014,713412,952
Events in quadrant B3,160,232416,272
Events in quadrant C2,947,368411,533
Events in quadrant D3,411,932388,162

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136033
B0138102
C0134952
D0151002

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6631340.512743%
B6631290.437340%
C6631110.165887%
D66311552.337506%

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 7666 6632 26 26 0.34% 0.39%
B 7666 6632 3 3 0.04% 0.05%
C 7666 6632 0 0 0.00% 0.00%
D 7666 6632 104 104 1.36% 1.57%

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 0 247 48587 303.84 760 742 157.5
A 0 50 26146 161.33 760 742 157.5
A 0 226 11760 69.97 760 742 157.5
B 4 80 33185 218.56 775 755 148.4
B 15 204 29949 196.75 775 755 148.4
B 0 219 29367 192.83 775 755 148.4
C 1 16 50380 287.07 740 745 172.9
C 13 61 6140 31.2 740 745 172.9
C 12 4 3850 17.96 740 745 172.9
D 2 33 366709 2023.64 729 708 180.9
D 12 233 107967 593.04 729 708 180.9
D 2 136 63325 346.21 729 708 180.9

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