ASTROSAT CZTI

Data Quality Report

Orbit 38039

Creation date: 2024-06-27T21:47:37.924668
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/AS1A11_024T01_9000005358_38039cztM0_level2.fits modeM0/AS1A11_024T01_9000005358_38039cztM0_level2_quad_clean.evt
Size (bytes)341,870,400100,739,520
Size326.0 MB 96.1 MB
Events in quadrant A3,059,354683,166
Events in quadrant B3,057,830706,359
Events in quadrant C2,871,466667,376
Events in quadrant D3,228,414600,140

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0330

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124603
B0126042
C0116892
D0132082

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5622250.444682%
B5622601.067236%
C5622100.177873%
D56221272.258983%

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 7385 5623 11 11 0.15% 0.20%
B 7385 5623 32 32 0.43% 0.57%
C 7385 5623 3 3 0.04% 0.05%
D 7385 5623 107 107 1.45% 1.90%

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 369897 2744.48 665 654 134.5
A 13 248 60027 441.3 665 654 134.5
A 12 16 27476 199.36 665 654 134.5
B 4 171 142126 1109.99 667 651 127.5
B 5 255 120433 939.79 667 651 127.5
B 5 184 40083 309.38 667 651 127.5
C 15 214 239827 1568.31 653 659 152.5
C 1 23 44766 289.22 653 659 152.5
C 14 254 18814 119.05 653 659 152.5
D 12 227 173876 1116.03 641 625 155.2
D 7 223 125111 801.9 641 625 155.2
D 13 249 122468 784.87 641 625 155.2

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