ASTROSAT CZTI

Data Quality Report

Orbit 53607

Creation date: 2025-08-26T03:19:05.682302
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/AS1A14_004T05_9000006502_53607cztM0_level2.fits modeM0/AS1A14_004T05_9000006502_53607cztM0_level2_quad_clean.evt
Size (bytes)959,875,20099,175,680
Size915.4 MB 94.6 MB
Events in quadrant A6,023,836721,531
Events in quadrant B6,288,570777,632
Events in quadrant C14,049,251365,717
Events in quadrant D8,555,895585,191

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0235260
B0243040
C0472201
D0309040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79406087.657431%
B79404866.120907%
C7940434954.773300%
D7940139817.607053%

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 7945 7945 419 419 5.27% 5.27%
B 7946 7946 325 325 4.09% 4.09%
C 7945 7943 3674 3674 46.24% 46.25%
D 7946 7946 1273 1273 16.02% 16.02%

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 3 78 1166176 5644.1 837 816 206.5
A 10 253 385893 1865.02 837 816 206.5
A 3 63 245502 1185.07 837 816 206.5
B 10 254 775245 4294.73 839 811 180.3
B 0 213 682878 3782.49 839 811 180.3
B 10 28 517234 2863.89 839 811 180.3
C 15 224 6072573 35609.92 613 607 170.5
C 15 164 1344810 7883.27 613 607 170.5
C 15 147 1307373 7663.72 613 607 170.5
D 8 176 2900773 13179.83 762 727 220.0
D 10 172 773798 3513.37 762 727 220.0
D 3 12 271106 1228.79 762 727 220.0

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