ASTROSAT CZTI

Data Quality Report

Orbit 29332

Creation date: 2024-06-27T20:02:50.012315
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/AS1A10_050T03_9000004216_29332cztM0_level2.evt modeM0/AS1A10_050T03_9000004216_29332cztM0_level2_quad_clean.evt
Size (bytes)942,552,00074,733,120
Size898.9 MB 71.3 MB
Events in quadrant A3,384,323512,014
Events in quadrant B4,147,085512,405
Events in quadrant C3,784,884500,322
Events in quadrant D16,763,293256,707

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143891
B0167331
C0156771
D0543911

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6881951.380613%
B68822703.923278%
C68821402.034292%
D6882678998.648649%

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 7271 6883 28 28 0.39% 0.41%
B 7272 6884 121 121 1.66% 1.76%
C 7272 6884 2 2 0.03% 0.03%
D 7272 6884 5917 5917 81.37% 85.95%

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 15 174 91877 537.37 838 818 169.5
A 1 113 22612 128.61 838 818 169.5
A 13 254 16642 93.38 838 818 169.5
B 5 255 378232 2369.75 827 805 159.3
B 5 172 180436 1127.85 827 805 159.3
B 10 245 96914 603.44 827 805 159.3
C 3 233 484159 2531.93 805 809 190.9
C 14 238 132433 689.49 805 809 190.9
C 2 114 16947 84.54 805 809 190.9
D 12 33 12919183 118911.54 443 430 108.6
D 1 52 1400521 12887.23 443 430 108.6
D 13 104 353952 3254.02 443 430 108.6

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