ASTROSAT CZTI

Data Quality Report

Orbit 08859

Creation date: 2024-06-27T15:38:09.533046
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_036T01_9000001230_08859cztM0_level2.evt modeM0/AS1A03_036T01_9000001230_08859cztM0_level2_quad_clean.evt
Size (bytes)382,155,84067,311,360
Size364.5 MB 64.2 MB
Events in quadrant A2,754,802428,796
Events in quadrant B2,847,440422,364
Events in quadrant C2,406,116429,528
Events in quadrant D3,213,722395,703

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012012
B012010
C012010
D012016

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133821851
B0143012525
C0120871411
D0151462327

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5167681.316044%
B51341142.220491%
C5200260.500000%
D50621052.074279%

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 7185 5577 15 15 0.21% 0.27%
B 7077 5552 73 73 1.03% 1.31%
C 7191 5626 0 0 0.00% 0.00%
D 7182 5515 71 71 0.99% 1.29%

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 5 367783 2953.7 614 600 124.3
A 3 1 8096 60.3 614 600 124.3
A 5 16 7307 53.95 614 600 124.3
B 4 48 139800 1207.7 611 598 115.3
B 10 16 115880 1000.17 611 598 115.3
B 0 219 81479 701.71 611 598 115.3
C 9 54 12643 85.93 608 611 140.0
C 14 234 11724 79.36 608 611 140.0
C 1 16 4979 31.19 608 611 140.0
D 8 195 297163 2092.84 589 570 141.7
D 1 52 235633 1658.67 589 570 141.7
D 12 233 184931 1300.9 589 570 141.7

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