ASTROSAT CZTI

Data Quality Report

Orbit 19224

Creation date: 2024-06-27T18:00:10.275775
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/AS1A05_007T06_9000002844_19224cztM0_level2.evt modeM0/AS1A05_007T06_9000002844_19224cztM0_level2_quad_clean.evt
Size (bytes)449,334,720104,676,480
Size428.5 MB 99.8 MB
Events in quadrant A3,043,442673,546
Events in quadrant B3,159,319697,642
Events in quadrant C3,732,216682,799
Events in quadrant D3,229,146660,615

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134262
B0136352
C0151652
D0142062

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6536140.214198%
B6536340.520196%
C6536931.422889%
D6536630.963892%

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 7596 6537 0 0 0.00% 0.00%
B 7596 6537 1 1 0.01% 0.02%
C 7596 6537 1 1 0.01% 0.02%
D 7596 6537 43 43 0.57% 0.66%

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 13 254 8706 50.35 787 774 157.5
A 0 226 6809 38.31 787 774 157.5
A 3 137 6036 33.4 787 774 157.5
B 12 111 17754 113.57 797 776 149.5
B 10 247 17124 109.35 797 776 149.5
B 11 111 15660 99.56 797 776 149.5
C 3 233 562799 3166.53 774 780 177.5
C 14 238 120417 674.06 774 780 177.5
C 6 96 15495 82.9 774 780 177.5
D 11 176 183350 974.92 773 751 187.3
D 7 96 81691 432.15 773 751 187.3
D 2 234 24401 126.27 773 751 187.3

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