ASTROSAT CZTI

Data Quality Report

Orbit 45154

Creation date: 2024-06-27T23:09:59.778764
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_049T04_9000006048_45154cztM0_level2.fits modeM0/AS1A13_049T04_9000006048_45154cztM0_level2_quad_clean.evt
Size (bytes)663,670,08079,306,560
Size632.9 MB 75.6 MB
Events in quadrant A14,127,85486,206
Events in quadrant B2,938,334685,110
Events in quadrant C2,858,138656,227
Events in quadrant D4,200,553576,756

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0457291
B0124241
C0122831
D0163461

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5683500187.999296%
B5684801.407460%
C56831031.812423%
D56833405.982756%

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 6837 5682 4799 4799 70.19% 84.46%
B 6839 5685 14 14 0.20% 0.25%
C 6838 5685 46 46 0.67% 0.81%
D 6838 5685 248 248 3.63% 4.36%

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 15 223 12292966 233492.08 248 243 52.6
A 10 83 854990 16235.35 248 243 52.6
A 7 3 7566 139.1 248 243 52.6
B 5 172 90162 690.96 665 643 129.6
B 4 170 57905 441.98 665 643 129.6
B 12 16 56194 428.77 665 643 129.6
C 0 207 134132 857.13 666 674 155.7
C 1 3 49959 316.53 666 674 155.7
C 12 2 46071 291.56 666 674 155.7
D 13 249 620898 3811.27 651 631 162.7
D 2 249 340166 2086.3 651 631 162.7
D 11 241 138078 844.55 651 631 162.7

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