ASTROSAT CZTI

Data Quality Report

Orbit 07661

Creation date: 2024-06-27T15:22:24.160507
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/AS1G06_114T01_9000001056_07661cztM0_level2.evt modeM0/AS1G06_114T01_9000001056_07661cztM0_level2_quad_clean.evt
Size (bytes)217,054,08019,710,720
Size207.0 MB 18.8 MB
Events in quadrant A1,487,364101,295
Events in quadrant B1,665,092102,735
Events in quadrant C1,501,940101,320
Events in quadrant D1,732,54096,561

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0560
B0560
C0560
D0560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A061052
B066481
C062311
D069331

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A27072238.237902%
B270727210.048024%
C27071124.137421%
D27071706.280015%

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 2732 2708 0 0 0.00% 0.00%
B 2732 2708 4 4 0.15% 0.15%
C 2732 2708 0 0 0.00% 0.00%
D 2732 2708 19 19 0.70% 0.70%

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 13 251 17162 205.85 381 371 81.6
A 0 226 3766 41.62 381 371 81.6
A 12 194 3606 39.66 381 371 81.6
B 0 229 88529 1158.16 374 364 76.1
B 0 219 60468 789.54 374 364 76.1
B 10 245 14313 183.24 374 364 76.1
C 8 208 62378 694.92 368 369 89.2
C 13 61 2916 28.54 368 369 89.2
C 1 16 2580 24.78 368 369 89.2
D 13 104 150954 1593.13 371 358 94.5
D 12 233 32597 341.05 371 358 94.5
D 2 152 24186 252.07 371 358 94.5

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