ASTROSAT CZTI

Data Quality Report

Orbit 07719

Creation date: 2024-06-27T15:23:06.483385
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/AS1G06_064T01_9000001066_07719cztM0_level2.evt modeM0/AS1G06_064T01_9000001066_07719cztM0_level2_quad_clean.evt
Size (bytes)525,378,24078,744,960
Size501.0 MB 75.1 MB
Events in quadrant A3,739,316469,632
Events in quadrant B4,372,042473,373
Events in quadrant C3,520,319464,113
Events in quadrant D3,759,689445,132

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0163782
B0180401
C0159711
D0166121

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76502873.751634%
B76505356.993464%
C76501351.764706%
D76501652.156863%

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 7670 7651 15 15 0.20% 0.20%
B 7670 7651 180 180 2.35% 2.35%
C 7670 7651 0 0 0.00% 0.00%
D 7670 7651 30 30 0.39% 0.39%

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 15 234 151835 787.84 926 905 191.6
A 3 1 15876 78.15 926 905 191.6
A 0 226 8759 41.0 926 905 191.6
B 4 239 630864 3551.75 915 894 177.4
B 0 229 55668 308.81 915 894 177.4
B 0 219 54496 302.2 915 894 177.4
C 13 61 7061 29.22 901 904 210.7
C 8 222 4595 17.52 901 904 210.7
C 12 4 4486 17.0 901 904 210.7
D 13 104 169654 747.35 906 877 225.8
D 2 152 73589 321.97 906 877 225.8
D 7 55 32716 140.98 906 877 225.8

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