ASTROSAT CZTI

Data Quality Report

Orbit 44448

Creation date: 2024-06-27T23:03:40.978184
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/AS1A13_072T03_9000006000_44448cztM0_level2.fits modeM0/AS1A13_072T03_9000006000_44448cztM0_level2_quad_clean.evt
Size (bytes)506,963,520115,404,480
Size483.5 MB 110.1 MB
Events in quadrant A5,241,824770,114
Events in quadrant B3,700,469788,204
Events in quadrant C3,634,469763,587
Events in quadrant D5,617,597659,970

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220652
B0160212
C0159222
D0217272

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73573434.662226%
B73573434.662226%
C73572253.058312%
D73576719.120565%

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 7767 7358 0 0 0.00% 0.00%
B 7767 7358 23 23 0.30% 0.31%
C 7767 7358 11 11 0.14% 0.15%
D 7767 7358 349 349 4.49% 4.74%

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 1863241 10325.78 861 840 180.4
A 10 248 48140 262.25 861 840 180.4
A 3 137 9836 49.88 861 840 180.4
B 5 172 179974 1059.4 852 825 169.1
B 0 155 66119 386.12 852 825 169.1
B 0 229 44098 255.9 852 825 169.1
C 2 14 104850 516.4 853 858 201.4
C 3 233 86231 423.94 853 858 201.4
C 14 254 73356 360.01 853 858 201.4
D 2 249 816726 3928.71 830 806 207.7
D 1 52 532768 2561.43 830 806 207.7
D 13 249 341679 1641.33 830 806 207.7

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