ASTROSAT CZTI

Data Quality Report

Orbit 22468

Creation date: 2024-06-27T18:41:37.428575
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/AS1A07_144T02_9000003340_22468cztM0_level2.evt modeM0/AS1A07_144T02_9000003340_22468cztM0_level2_quad_clean.evt
Size (bytes)287,328,96038,145,600
Size274.0 MB 36.4 MB
Events in quadrant A1,867,411228,102
Events in quadrant B1,933,649233,875
Events in quadrant C1,872,752224,050
Events in quadrant D2,777,828209,488

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A078611
B078941
C078181
D0109171

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3658521.421542%
B3658882.405686%
C36581143.116457%
D36582065.631493%

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 4168 3659 0 0 0.00% 0.00%
B 4168 3658 0 0 0.00% 0.00%
C 4168 3658 0 0 0.00% 0.00%
D 4168 3659 143 143 3.43% 3.91%

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 15 174 18599 183.02 476 465 99.1
A 3 1 13504 131.6 476 465 99.1
A 13 254 5750 53.34 476 465 99.1
B 0 244 38642 402.49 479 466 94.8
B 12 111 11555 116.91 479 466 94.8
B 11 111 9925 99.73 479 466 94.8
C 14 238 71816 648.36 460 460 110.1
C 9 54 4357 35.41 460 460 110.1
C 13 61 3247 25.32 460 460 110.1
D 1 52 732268 6467.4 454 440 113.2
D 1 20 243893 2151.47 454 440 113.2
D 13 249 39883 348.57 454 440 113.2

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