ASTROSAT CZTI

Data Quality Report

Orbit 07553

Creation date: 2024-06-27T15:21:27.551625
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_164T01_9000001040_07553cztM0_level2.evt modeM0/AS1G06_164T01_9000001040_07553cztM0_level2_quad_clean.evt
Size (bytes)443,908,80078,762,240
Size423.3 MB 75.1 MB
Events in quadrant A3,188,372489,555
Events in quadrant B3,153,513501,846
Events in quadrant C3,152,570481,841
Events in quadrant D3,510,951461,789

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135213
B0134622
C0135362
D0146292

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6445851.318852%
B6445821.272304%
C6445691.070597%
D64451141.768813%

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 7635 6445 2 2 0.03% 0.03%
B 7635 6445 0 0 0.00% 0.00%
C 7635 6445 15 15 0.20% 0.23%
D 7635 6445 46 46 0.60% 0.71%

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 14 111 42855 258.01 810 794 163.0
A 15 239 17118 100.13 810 794 163.0
A 13 14 11499 65.67 810 794 163.0
B 0 214 15903 99.03 809 790 152.6
B 12 111 15628 97.23 809 790 152.6
B 11 111 12299 75.42 809 790 152.6
C 9 68 77333 430.45 775 779 177.8
C 1 16 26323 143.63 775 779 177.8
C 8 128 11860 62.31 775 779 177.8
D 2 152 462242 2435.56 777 751 189.5
D 2 14 32412 167.09 777 751 189.5
D 12 233 27050 138.8 777 751 189.5

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