ASTROSAT CZTI

Data Quality Report

Orbit 38384

Creation date: 2024-06-27T21:51:52.363865
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_005T08_9000005380_38384cztM0_level2.fits modeM0/AS1A12_005T08_9000005380_38384cztM0_level2_quad_clean.evt
Size (bytes)438,269,76095,783,040
Size418.0 MB 91.3 MB
Events in quadrant A3,237,654663,334
Events in quadrant B2,916,694684,396
Events in quadrant C2,865,804653,704
Events in quadrant D6,745,652487,455

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130633
B0123242
C0119392
D0243092

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0310

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5883270.458950%
B588390.152983%
C588380.135985%
D5883111618.969913%

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 8929 5885 10 10 0.11% 0.17%
B 8929 5885 0 0 0.00% 0.00%
C 8929 5885 1 1 0.01% 0.02%
D 8929 5885 1081 1081 12.11% 18.37%

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 10 83 414901 3026.57 676 664 136.9
A 9 143 74999 543.12 676 664 136.9
A 12 16 66149 478.46 676 664 136.9
B 0 183 165469 1257.49 671 654 131.1
B 4 21 45293 340.58 671 654 131.1
B 12 111 16648 122.03 671 654 131.1
C 15 214 250863 1602.9 659 663 156.1
C 15 159 12577 76.33 659 663 156.1
C 5 250 10822 65.08 659 663 156.1
D 10 203 3414416 23727.58 587 569 143.9
D 7 223 299881 2080.34 587 569 143.9
D 1 20 241812 1676.73 587 569 143.9

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