ASTROSAT CZTI

Data Quality Report

Orbit 10222

Creation date: 2024-06-27T15:56:34.226796
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/AS1A03_099T01_9000001472_10222cztM0_level2.evt modeM0/AS1A03_099T01_9000001472_10222cztM0_level2_quad_clean.evt
Size (bytes)520,142,40098,700,480
Size496.0 MB 94.1 MB
Events in quadrant A4,156,013625,758
Events in quadrant B3,875,985635,455
Events in quadrant C3,268,579630,116
Events in quadrant D3,966,208599,155

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0171753
B0161602
C0146952
D0165842

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71541872.613922%
B7154881.230081%
C715470.097847%
D7154891.244059%

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 7629 7156 95 95 1.25% 1.33%
B 7629 7156 34 34 0.45% 0.48%
C 7629 7156 0 0 0.00% 0.00%
D 7629 7156 59 59 0.77% 0.82%

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 8 15 353110 2047.18 849 832 172.1
A 15 223 345216 2001.31 849 832 172.1
A 15 239 143655 829.98 849 832 172.1
B 4 81 229696 1394.32 858 837 164.1
B 4 239 86937 524.56 858 837 164.1
B 11 51 86327 520.85 858 837 164.1
C 0 207 50932 260.74 823 825 192.2
C 13 61 6062 27.25 823 825 192.2
C 4 175 5441 24.02 823 825 192.2
D 1 52 397602 1992.69 822 801 199.1
D 8 195 226662 1134.25 822 801 199.1
D 2 33 74539 370.3 822 801 199.1

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