ASTROSAT CZTI

Data Quality Report

Orbit 10020

Creation date: 2024-06-27T15:53:50.481932
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/AS1G07_022T02_9000001434_10020cztM0_level2.evt modeM0/AS1G07_022T02_9000001434_10020cztM0_level2_quad_clean.evt
Size (bytes)380,041,92083,828,160
Size362.4 MB 79.9 MB
Events in quadrant A2,725,787533,378
Events in quadrant B2,891,407537,001
Events in quadrant C2,550,952546,063
Events in quadrant D2,947,609519,095

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156183640
B0162663735
C0152363384
D0167413913

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0103
B0101
C0101
D0101

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015031
B015230
C015236
D015228

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5746470.817960%
B57351272.214473%
C5754490.851582%
D5737821.429318%

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 8352 6697 5 5 0.06% 0.07%
B 8352 6736 36 36 0.43% 0.53%
C 8352 6758 4 4 0.05% 0.06%
D 8350 6685 17 17 0.20% 0.25%

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 92026 685.79 649 635 133.3
A 15 239 85466 636.56 649 635 133.3
A 13 251 32060 235.81 649 635 133.3
B 4 81 234537 1847.58 656 641 126.6
B 4 239 34835 270.1 656 641 126.6
B 5 255 18445 140.64 656 641 126.6
C 14 234 39358 259.55 641 646 149.1
C 14 67 5654 33.58 641 646 149.1
C 13 61 4792 27.8 641 646 149.1
D 1 52 164327 1045.43 627 611 156.6
D 10 157 100455 637.57 627 611 156.6
D 8 195 92658 587.78 627 611 156.6

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