ASTROSAT CZTI

Data Quality Report

Orbit 13189

Creation date: 2024-06-27T16:37:33.904588
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/AS1T02_012T07_9000001958_13189cztM0_level2.evt modeM0/AS1T02_012T07_9000001958_13189cztM0_level2_quad_clean.evt
Size (bytes)355,654,08059,189,760
Size339.2 MB 56.4 MB
Events in quadrant A2,250,356377,561
Events in quadrant B2,811,334357,621
Events in quadrant C2,026,190376,373
Events in quadrant D3,368,344355,912

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A096761
B0113841
C093771
D0131451

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0940
B0940
C0940
D0940

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4619481.039186%
B46193607.793895%
C4619330.714440%
D46192164.676337%

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 5545 4622 0 0 0.00% 0.00%
B 5545 4622 164 164 2.96% 3.55%
C 5545 4622 1 1 0.02% 0.02%
D 5545 4622 151 151 2.72% 3.27%

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 8 15 152743 1394.17 532 520 109.2
A 12 189 35014 315.92 532 520 109.2
A 1 162 7955 68.1 532 520 109.2
B 4 239 729022 7382.6 510 499 98.7
B 3 64 19846 196.06 510 499 98.7
B 3 209 18966 187.14 510 499 98.7
C 15 208 11116 87.86 516 518 120.6
C 13 61 3750 26.8 516 518 120.6
C 12 4 3313 23.17 516 518 120.6
D 1 52 888380 7276.78 507 493 122.0
D 13 122 284174 2324.94 507 493 122.0
D 14 34 179386 1466.14 507 493 122.0

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