ASTROSAT CZTI

Data Quality Report

Orbit 44290

Creation date: 2024-06-27T23:01:40.285350
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_012T08_9000005986_44290cztM0_level2.fits modeM0/AS1A13_012T08_9000005986_44290cztM0_level2_quad_clean.evt
Size (bytes)556,211,520128,782,080
Size530.4 MB 122.8 MB
Events in quadrant A5,646,234869,046
Events in quadrant B4,426,402883,422
Events in quadrant C3,820,730847,967
Events in quadrant D6,081,526748,478

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0225391
B0184931
C0171621
D0237131

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79161852.337039%
B79161962.475998%
C7916600.757959%
D79165657.137443%

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 7916 7916 32 32 0.40% 0.40%
B 7916 7916 42 42 0.53% 0.53%
C 7916 7916 22 22 0.28% 0.28%
D 7916 7916 405 405 5.12% 5.12%

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 1668153 8698.92 915 894 191.7
A 15 223 361306 1880.45 915 894 191.7
A 13 248 50786 260.31 915 894 191.7
B 5 172 146867 793.33 915 885 184.0
B 0 219 145192 784.23 915 885 184.0
B 0 229 119830 646.4 915 885 184.0
C 14 254 227819 1062.06 901 906 213.7
C 1 3 57993 267.19 901 906 213.7
C 3 233 13830 60.49 901 906 213.7
D 1 52 611000 2766.14 877 851 220.6
D 13 249 464711 2102.93 877 851 220.6
D 5 235 388724 1758.44 877 851 220.6

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