ASTROSAT CZTI

Data Quality Report

Orbit 45588

Creation date: 2024-06-27T23:13:56.095484
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/AS1A13_071T04_9000006110_45588cztM0_level2.fits modeM0/AS1A13_071T04_9000006110_45588cztM0_level2_quad_clean.evt
Size (bytes)462,404,16099,264,960
Size441.0 MB 94.7 MB
Events in quadrant A5,133,287671,778
Events in quadrant B3,036,124693,553
Events in quadrant C2,772,892667,187
Events in quadrant D5,718,119562,278

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0188431
B0129341
C0124841
D0211537

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58801442.448980%
B5881971.649379%
C5881611.037239%
D587866011.228309%

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 6995 5881 5 5 0.07% 0.09%
B 6996 5882 21 21 0.30% 0.36%
C 6996 5882 29 29 0.41% 0.49%
D 6996 5880 478 478 6.83% 8.13%

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 2415700 17373.11 675 661 139.0
A 0 243 43444 307.77 675 661 139.0
A 2 79 26115 183.11 675 661 139.0
B 15 201 172369 1290.5 670 649 133.1
B 0 183 76328 568.74 670 649 133.1
B 4 171 41317 305.62 670 649 133.1
C 14 254 189962 1225.78 658 660 154.4
C 12 2 10182 61.66 658 660 154.4
C 3 233 4514 24.96 658 660 154.4
D 2 249 1327974 8167.54 642 620 162.5
D 1 52 801810 4929.92 642 620 162.5
D 11 241 600501 3691.22 642 620 162.5

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