ASTROSAT CZTI

Data Quality Report

Orbit 39080

Creation date: 2024-06-27T22:00:10.318108
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_39080cztM0_level2.fits modeM0/AS1T05_067T01_9000005432_39080cztM0_level2_quad_clean.evt
Size (bytes)391,377,60092,632,320
Size373.2 MB 88.3 MB
Events in quadrant A2,883,373623,924
Events in quadrant B2,515,655645,747
Events in quadrant C5,262,085590,035
Events in quadrant D3,400,361561,937

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119073
B0111152
C0192852
D0136962

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5480140.255474%
B548080.145985%
C54803686.715328%
D5480891.624088%

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 7152 5481 5 5 0.07% 0.09%
B 7152 5481 0 0 0.00% 0.00%
C 7152 5481 378 378 5.29% 6.90%
D 7152 5481 65 65 0.91% 1.19%

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 418663 3306.66 623 611 126.4
A 13 248 17074 130.22 623 611 126.4
A 5 168 15134 114.87 623 611 126.4
B 5 184 42270 345.58 620 602 120.6
B 12 111 15316 122.03 620 602 120.6
B 11 111 14249 113.18 620 602 120.6
C 15 208 2465077 17775.0 597 601 138.6
C 15 214 229608 1651.71 597 601 138.6
C 3 233 193669 1392.5 597 601 138.6
D 12 235 513189 3506.87 602 585 146.2
D 12 227 146053 995.19 602 585 146.2
D 12 233 128017 871.8 602 585 146.2

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