ASTROSAT CZTI

Data Quality Report

Orbit 48147

Creation date: 2024-08-23T15:41:08.982260
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/AS1C09_009T01_9000006406_48147cztM0_level2.fits modeM0/AS1C09_009T01_9000006406_48147cztM0_level2_quad_clean.evt
Size (bytes)457,856,64095,425,920
Size436.6 MB 91.0 MB
Events in quadrant A7,452,226833,571
Events in quadrant B1,237,571120
Events in quadrant C3,273,160818,437
Events in quadrant D4,417,810735,738

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0271830
B076500
C0150220
D0181180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72021722.388225%
B7202720199.986115%
C7202120.166620%
D72021301.805054%

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 7202 7202 4 4 0.06% 0.06%
B 7202 7181 0 0 0.00% 0.00%
C 7202 7202 4 4 0.06% 0.06%
D 7202 7202 108 108 1.50% 1.50%

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 4203117 24073.92 824 808 174.6
A 7 3 25646 142.29 824 808 174.6
A 13 248 22221 122.67 824 808 174.6
B 2 177 996455 81387.68 50 49 12.2
B 4 171 18670 1520.99 50 49 12.2
B 4 21 14692 1196.06 50 49 12.2
C 12 2 26376 131.19 811 818 194.8
C 0 207 25945 128.97 811 818 194.8
C 10 187 23430 116.06 811 818 194.8
D 12 2 840265 4093.5 800 775 205.1
D 2 37 134279 650.99 800 775 205.1
D 2 165 120497 583.79 800 775 205.1

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