ASTROSAT CZTI

Data Quality Report

Orbit 20230920_C07_001T10_9000005856_level2

Creation date: 2023-09-25T12:13:41.444661
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/AS1C07_001T10_9000005856cztM0_level2.fits modeM0/AS1C07_001T10_9000005856cztM0_level2_quad_clean.evt
Size (bytes)1,171,696,3201,529,847,360
Size1.1 GB 1.4 GB
Events in quadrant A6,783,4949,392,710
Events in quadrant B6,733,3289,972,632
Events in quadrant C6,766,0529,261,799
Events in quadrant D5,888,0868,402,111

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04950
B04970
C04960
D04960

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A027760
B027780
C027760
D027780

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03778170
B02974620
C02962050
D03417650

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A13581782906.103801%
B13585216751.232959%
C1358327650.563196%
D13582352163.840292%

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 193398 135554 0 0 0.00% 0.00%
B 193399 135868 0 0 0.00% 0.00%
C 193399 135905 0 0 0.00% 0.00%
D 193399 135672 0 0 0.00% 0.00%

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 0 29 5715 9.1 1770 1661 445.3
A 7 110 5685 9.04 1770 1661 445.3
A 9 19 5526 8.68 1770 1661 445.3
B 2 9 5804 12.01 1777 1699 341.9
B 3 80 4792 9.05 1777 1699 341.9
B 2 8 4668 8.68 1777 1699 341.9
C 1 81 5602 8.65 1788 1673 454.2
C 1 80 5444 8.3 1788 1673 454.2
C 3 203 5357 8.11 1788 1673 454.2
D 10 189 4520 6.57 1684 1528 455.1
D 4 160 4455 6.43 1684 1528 455.1
D 3 14 4321 6.14 1684 1528 455.1

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