ASTROSAT CZTI

Data Quality Report

Orbit 34019

Creation date: 2024-06-27T20:55:28.041410
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_106T03_9000004864_34019cztM0_level2.evt modeM0/AS1A11_106T03_9000004864_34019cztM0_level2_quad_clean.evt
Size (bytes)290,390,40029,819,520
Size276.9 MB 28.4 MB
Events in quadrant A1,528,655181,089
Events in quadrant B2,792,115160,415
Events in quadrant C1,822,822170,852
Events in quadrant D2,439,207169,257

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A062741
B0102701
C070951
D093141

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A310030.096774%
B310040212.967742%
C3100471.516129%
D3100983.161290%

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 3100 3100 0 0 0.00% 0.00%
B 3100 3100 356 356 11.48% 11.48%
C 3100 3100 47 47 1.52% 1.52%
D 3100 3100 81 81 2.61% 2.61%

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 15 169 21308 271.08 384 377 77.2
A 13 6 13449 169.3 384 377 77.2
A 10 83 8871 110.01 384 377 77.2
B 5 172 725642 10780.55 356 349 67.3
B 0 182 254012 3770.37 356 349 67.3
B 5 31 167094 2478.45 356 349 67.3
C 0 10 163552 1971.96 361 364 82.8
C 15 214 144451 1741.14 361 364 82.8
C 3 233 96779 1165.07 361 364 82.8
D 8 195 372580 3850.66 367 358 96.7
D 13 249 132479 1366.8 367 358 96.7
D 7 223 86024 886.22 367 358 96.7

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