ASTROSAT CZTI

Data Quality Report

Orbit 08436

Creation date: 2024-06-27T15:32:43.186960
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_106T01_9000001190_08436cztM0_level2.evt modeM0/AS1A03_106T01_9000001190_08436cztM0_level2_quad_clean.evt
Size (bytes)448,819,20090,616,320
Size428.0 MB 86.4 MB
Events in quadrant A3,260,871570,858
Events in quadrant B3,430,473586,042
Events in quadrant C3,095,939577,595
Events in quadrant D3,357,681550,490

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140503
B0143732
C0134942
D0145532

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6583570.865867%
B6583620.941820%
C6583320.486101%
D6583630.957010%

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 7793 6584 9 9 0.12% 0.14%
B 7793 6584 16 16 0.21% 0.24%
C 7793 6584 2 2 0.03% 0.03%
D 7793 6583 30 30 0.38% 0.46%

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 15 236 84800 528.4 799 785 159.0
A 14 111 34947 214.86 799 785 159.0
A 15 223 32364 198.61 799 785 159.0
B 0 214 115606 772.37 809 792 148.7
B 4 81 90202 601.47 809 792 148.7
B 10 16 44758 295.76 809 792 148.7
C 8 128 12647 66.42 786 791 178.5
C 13 61 6890 34.17 786 791 178.5
C 8 112 6202 30.31 786 791 178.5
D 6 225 198257 1049.27 779 755 188.2
D 12 233 97518 514.07 779 755 188.2
D 2 14 46412 242.56 779 755 188.2

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