ASTROSAT CZTI

Data Quality Report

Orbit 46430

Creation date: 2024-06-27T23:23:06.742826
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_062T01_9000006208_46430cztM0_level2.fits modeM0/AS1A13_062T01_9000006208_46430cztM0_level2_quad_clean.evt
Size (bytes)429,517,440107,925,120
Size409.6 MB 102.9 MB
Events in quadrant A5,452,868720,483
Events in quadrant B2,968,971756,861
Events in quadrant C3,163,679717,042
Events in quadrant D3,841,666648,811

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0199981
B0126551
C0132931
D0155991

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60791682.763612%
B6079901.480507%
C6079681.118605%
D60802403.947368%

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 7254 6079 22 22 0.30% 0.36%
B 7254 6079 0 0 0.00% 0.00%
C 7254 6080 23 23 0.32% 0.38%
D 7255 6081 181 181 2.49% 2.98%

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 2607817 17354.41 734 722 150.2
A 13 254 10530 65.29 734 722 150.2
A 3 137 8311 50.52 734 722 150.2
B 0 189 48059 332.74 731 711 142.3
B 0 190 24232 165.3 731 711 142.3
B 12 111 18639 125.99 731 711 142.3
C 14 254 301241 1785.91 716 722 168.3
C 3 233 30540 177.2 716 722 168.3
C 9 54 22975 132.24 716 722 168.3
D 13 249 920598 5213.38 712 693 176.5
D 2 249 186837 1054.93 712 693 176.5
D 2 234 25466 140.4 712 693 176.5

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