ASTROSAT CZTI

Data Quality Report

Orbit 47869

Creation date: 2024-08-04T14:26:05.371090
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/AS1A09_038T22_9000006368_47869cztM0_level2.fits modeM0/AS1A09_038T22_9000006368_47869cztM0_level2_quad_clean.evt
Size (bytes)429,180,480104,734,080
Size409.3 MB 99.9 MB
Events in quadrant A6,288,126678,135
Events in quadrant B2,847,856709,715
Events in quadrant C2,749,149697,042
Events in quadrant D3,496,141632,505

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0231891
B0132951
C0132061
D0150461

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65072093.211926%
B6508811.244622%
C6508490.752919%
D6508721.106331%

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 7232 6508 8 8 0.11% 0.12%
B 7233 6509 0 0 0.00% 0.00%
C 7233 6509 0 0 0.00% 0.00%
D 7233 6509 30 30 0.41% 0.46%

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 10 83 3561887 24666.88 693 677 144.4
A 13 248 34837 236.61 693 677 144.4
A 7 3 16047 106.46 693 677 144.4
B 5 32 30081 215.19 701 676 136.6
B 12 111 17540 123.41 701 676 136.6
B 0 197 17331 121.88 701 676 136.6
C 13 61 4668 23.99 702 705 165.2
C 14 67 4314 21.85 702 705 165.2
C 14 254 3992 19.9 702 705 165.2
D 2 165 400916 2312.25 695 674 173.1
D 12 2 251091 1446.69 695 674 173.1
D 2 249 60769 347.18 695 674 173.1

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