ASTROSAT CZTI

Data Quality Report

Orbit 47388

Creation date: 2024-07-03T03:38:23.947519
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/AS1A13_093T25_9000006324_47388cztM0_level2.fits modeM0/AS1A13_093T25_9000006324_47388cztM0_level2_quad_clean.evt
Size (bytes)453,479,040109,632,960
Size432.5 MB 104.6 MB
Events in quadrant A6,944,061715,406
Events in quadrant B3,217,666770,017
Events in quadrant C3,006,024724,198
Events in quadrant D3,119,775661,357

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0230
C0230
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0249472
B0137662
C0134862
D0138922

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64263685.726735%
B6426460.715842%
C6426240.373483%
D6426350.544662%

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 7641 6427 205 205 2.68% 3.19%
B 7641 6427 6 6 0.08% 0.09%
C 7641 6427 7 7 0.09% 0.11%
D 7641 6427 32 32 0.42% 0.50%

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 3675245 23861.67 737 723 154.0
A 9 191 365354 2367.85 737 723 154.0
A 15 235 37169 236.67 737 723 154.0
B 0 190 52542 352.08 752 729 147.2
B 5 255 44606 298.16 752 729 147.2
B 5 32 36355 242.09 752 729 147.2
C 0 207 99821 574.08 730 736 172.6
C 12 249 18826 104.81 730 736 172.6
C 3 233 17953 99.75 730 736 172.6
D 2 249 169926 919.36 724 702 184.1
D 12 2 52657 282.26 724 702 184.1
D 2 234 30363 161.14 724 702 184.1

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