ASTROSAT CZTI

Data Quality Report

Orbit 33197

Creation date: 2024-06-27T20:45:59.856121
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/AS1A10_067T01_9000004770_33197cztM0_level2.evt modeM0/AS1A10_067T01_9000004770_33197cztM0_level2_quad_clean.evt
Size (bytes)536,431,68086,696,640
Size511.6 MB 82.7 MB
Events in quadrant A2,702,877569,058
Events in quadrant B3,856,674560,363
Events in quadrant C3,046,939556,613
Events in quadrant D6,237,350524,754

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119983
B0154742
C0130042
D0227282

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5937120.202122%
B59374357.326933%
C5937450.757959%
D59373656.147886%

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 7219 5938 0 0 0.00% 0.00%
B 7219 5938 262 262 3.63% 4.41%
C 7219 5938 30 30 0.42% 0.51%
D 7219 5938 310 310 4.29% 5.22%

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 13 254 11092 74.45 694 680 139.8
A 13 6 10478 70.06 694 680 139.8
A 3 137 6560 42.05 694 680 139.8
B 5 172 856873 6703.78 665 647 127.7
B 0 219 222500 1736.99 665 647 127.7
B 4 170 37916 291.8 665 647 127.7
C 0 10 149759 958.65 670 675 155.5
C 1 23 142362 911.09 670 675 155.5
C 14 67 49687 315.16 670 675 155.5
D 8 195 1417924 8173.32 655 641 173.4
D 2 250 643802 3709.04 655 641 173.4
D 2 249 476112 2741.99 655 641 173.4

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