ASTROSAT CZTI

Data Quality Report

Orbit 29436

Creation date: 2024-06-27T20:04:07.168344
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_102T05_9000004232_29436cztM0_level2.evt modeM0/AS1A10_102T05_9000004232_29436cztM0_level2_quad_clean.evt
Size (bytes)1,921,809,600233,542,080
Size1.8 GB 222.7 MB
Events in quadrant A8,857,9501,487,886
Events in quadrant B9,835,5031,513,737
Events in quadrant C13,401,3781,456,035
Events in quadrant D24,865,2641,342,627

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A038210
B03822
C038210
D03824

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A038816411
B041874663
C0534111222
D0886171786

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A185621760.948174%
B185123852.079732%
C184378204.447578%
D18377475525.874735%

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 21000 18736 0 0 0.00% 0.00%
B 21000 18733 32 32 0.15% 0.17%
C 21001 18705 49 49 0.23% 0.26%
D 21001 18668 3413 3413 16.25% 18.28%

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 1 113 49833 104.15 2277 2225 457.1
A 13 254 35963 73.81 2277 2225 457.1
A 3 137 23234 45.96 2277 2225 457.1
B 10 245 736299 1682.02 2252 2192 436.4
B 5 255 74332 165.29 2252 2192 436.4
B 0 229 72850 161.9 2252 2192 436.4
C 3 233 4581065 9080.37 2157 2168 504.3
C 14 238 356179 702.04 2157 2168 504.3
C 2 114 43990 82.94 2157 2168 504.3
D 8 195 6993147 14658.23 1991 1937 476.9
D 1 52 5246861 10996.85 1991 1937 476.9
D 13 104 2887888 6050.87 1991 1937 476.9

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