ASTROSAT CZTI

Data Quality Report

Orbit 29407

Creation date: 2024-06-27T20:03:48.013535
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/AS1A10_102T11_9000004230_29407cztM0_level2.evt modeM0/AS1A10_102T11_9000004230_29407cztM0_level2_quad_clean.evt
Size (bytes)1,689,543,360235,552,320
Size1.6 GB 224.6 MB
Events in quadrant A10,097,7371,508,306
Events in quadrant B8,950,5611,543,090
Events in quadrant C11,083,9851,477,758
Events in quadrant D19,866,4951,407,196

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03540
B03540
C03540
D03540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0416603
B0379083
C0448313
D0712544

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A173713952.273905%
B173712471.421910%
C173717534.334811%
D17370292916.862406%

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 19321 17374 126 126 0.65% 0.73%
B 19321 17374 41 41 0.21% 0.24%
C 19321 17374 1 1 0.01% 0.01%
D 19320 17373 2508 2508 12.98% 14.44%

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 1 113 1957198 4693.64 2073 2029 416.6
A 0 13 143695 340.09 2073 2029 416.6
A 13 254 30455 68.24 2073 2029 416.6
B 0 229 279145 703.54 2066 2010 393.9
B 10 245 235776 593.44 2066 2010 393.9
B 5 255 137280 343.4 2066 2010 393.9
C 3 233 2581435 5604.99 1979 1989 460.2
C 14 238 417591 903.08 1979 1989 460.2
C 10 9 168660 362.17 1979 1989 460.2
D 8 195 7647271 16735.21 1915 1863 456.8
D 1 52 2775208 6070.64 1915 1863 456.8
D 12 33 1377522 3011.21 1915 1863 456.8

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