ASTROSAT CZTI

Data Quality Report

Orbit 47763

Creation date: 2024-07-28T13:56:54.196185
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/AS1C09_004T04_9000006346_47763cztM0_level2.fits modeM0/AS1C09_004T04_9000006346_47763cztM0_level2_quad_clean.evt
Size (bytes)445,515,84099,936,000
Size424.9 MB 95.3 MB
Events in quadrant A6,282,097666,634
Events in quadrant B3,475,297675,742
Events in quadrant C3,291,962643,985
Events in quadrant D2,962,390608,210

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0229781
B0146161
C0143191
D0134851

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61781462.363224%
B61781332.152800%
C61781953.156361%
D6179971.569833%

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 7303 6179 50 50 0.68% 0.81%
B 7303 6179 60 60 0.82% 0.97%
C 7303 6179 168 168 2.30% 2.72%
D 7304 6180 66 66 0.90% 1.07%

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 10 83 3630520 25924.93 672 657 140.0
A 13 248 25248 175.63 672 657 140.0
A 9 191 20302 140.3 672 657 140.0
B 5 255 263163 1995.64 671 649 131.5
B 0 186 226100 1713.88 671 649 131.5
B 4 171 175331 1327.94 671 649 131.5
C 14 254 705949 4578.32 650 654 154.1
C 12 2 37091 236.53 650 654 154.1
C 3 110 4565 25.39 650 654 154.1
D 2 165 183937 1105.41 658 634 165.8
D 7 67 122798 736.71 658 634 165.8
D 2 249 32964 194.97 658 634 165.8

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