ASTROSAT CZTI

Data Quality Report

Orbit 32132

Creation date: 2024-06-27T20:36:50.518633
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/AS1T04_051T01_9000004686_32132cztM0_level2.evt modeM0/AS1T04_051T01_9000004686_32132cztM0_level2_quad_clean.evt
Size (bytes)611,176,32087,448,320
Size582.9 MB 83.4 MB
Events in quadrant A3,145,728574,841
Events in quadrant B6,154,032565,813
Events in quadrant C3,778,514545,455
Events in quadrant D5,005,826522,267

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132312
B0225442
C0151072
D0193842

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6298100.158781%
B62982764.382344%
C62972463.906622%
D62972263.589011%

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 7493 6299 0 0 0.00% 0.00%
B 7493 6299 108 108 1.44% 1.71%
C 7492 6298 119 119 1.59% 1.89%
D 7492 6298 212 212 2.83% 3.37%

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 13 6 17752 105.28 807 792 161.1
A 13 254 13647 79.8 807 792 161.1
A 0 6 10362 59.41 807 792 161.1
B 6 159 1794241 12039.03 794 776 149.0
B 10 245 910646 6107.7 794 776 149.0
B 5 172 147873 987.42 794 776 149.0
C 0 10 625007 3566.25 759 764 175.0
C 14 238 131107 744.64 759 764 175.0
C 4 175 25151 139.32 759 764 175.0
D 8 195 1389649 7581.74 760 738 183.2
D 12 233 492454 2684.16 760 738 183.2
D 7 38 143788 780.88 760 738 183.2

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