ASTROSAT CZTI

Data Quality Report

Orbit 39003

Creation date: 2024-06-27T21:59:10.728325
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/AS1A12_061T07_9000005422_39003cztM0_level2.fits modeM0/AS1A12_061T07_9000005422_39003cztM0_level2_quad_clean.evt
Size (bytes)372,176,64098,815,680
Size354.9 MB 94.2 MB
Events in quadrant A4,718,831645,857
Events in quadrant B2,789,267681,333
Events in quadrant C2,804,920648,343
Events in quadrant D3,001,616601,654

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0178813
B0123212
C0119162
D0128542

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59372464.143507%
B5937320.538993%
C593720.033687%
D5937160.269496%

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 7250 5938 206 206 2.84% 3.47%
B 7250 5938 9 9 0.12% 0.15%
C 7250 5938 0 0 0.00% 0.00%
D 7250 5938 15 15 0.21% 0.25%

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 15 222 1489154 11015.76 659 645 135.1
A 10 83 441169 3260.11 659 645 135.1
A 13 248 155136 1143.32 659 645 135.1
B 5 172 125562 972.42 663 643 128.5
B 0 230 48805 374.91 663 643 128.5
B 12 111 16486 123.33 663 643 128.5
C 15 214 246957 1604.61 654 658 153.5
C 1 128 4513 25.11 654 658 153.5
C 13 61 4487 24.95 654 658 153.5
D 12 235 171975 1069.94 650 630 160.1
D 13 171 135569 842.61 650 630 160.1
D 12 227 89894 557.4 650 630 160.1

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