ASTROSAT CZTI

Data Quality Report

Orbit 39117

Creation date: 2024-06-27T22:00:38.753853
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/AS1T05_067T01_9000005432_39117cztM0_level2.fits modeM0/AS1T05_067T01_9000005432_39117cztM0_level2_quad_clean.evt
Size (bytes)91,287,36023,512,320
Size87.1 MB 22.4 MB
Events in quadrant A745,142158,113
Events in quadrant B596,379159,830
Events in quadrant C808,935150,718
Events in quadrant D1,119,000140,952

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030921
B027661
C033131
D043341

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A137250.364431%
B137210.072886%
C137220.145773%
D1372151.093294%

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 1372 1372 3 3 0.22% 0.22%
B 1372 1372 0 0 0.00% 0.00%
C 1372 1372 0 0 0.00% 0.00%
D 1372 1372 12 12 0.87% 0.87%

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 154786 4795.12 151 148 32.2
A 13 254 2649 77.55 151 148 32.2
A 13 248 2648 77.52 151 148 32.2
B 15 85 4883 155.84 148 145 30.4
B 0 214 3864 122.32 148 145 30.4
B 12 111 3569 112.62 148 145 30.4
C 15 208 161646 4640.21 141 142 34.8
C 15 214 61542 1764.1 141 142 34.8
C 9 187 25097 716.99 141 142 34.8
D 12 235 307003 8443.94 141 137 36.3
D 5 222 93467 2568.13 141 137 36.3
D 12 227 50734 1392.26 141 137 36.3

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