ASTROSAT CZTI

Data Quality Report

Orbit 46386

Creation date: 2024-06-27T23:22:31.200767
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_070T06_9000006202_46386cztM0_level2.fits modeM0/AS1A13_070T06_9000006202_46386cztM0_level2_quad_clean.evt
Size (bytes)440,161,920109,460,160
Size419.8 MB 104.4 MB
Events in quadrant A5,765,912724,985
Events in quadrant B3,492,391749,472
Events in quadrant C2,862,162730,783
Events in quadrant D3,680,653666,891

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0208631
B0144942
C0130081
D0151761

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63381342.114232%
B63372003.156068%
C6338250.394446%
D6338741.167561%

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 7513 6339 20 20 0.27% 0.32%
B 7512 6338 99 99 1.32% 1.56%
C 7513 6339 1 1 0.01% 0.02%
D 7513 6339 39 39 0.52% 0.62%

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 2867490 19010.7 730 716 150.8
A 13 248 38389 249.82 730 716 150.8
A 0 247 17907 114.0 730 716 150.8
B 4 171 329780 2361.86 722 699 139.3
B 5 32 256127 1833.24 722 699 139.3
B 15 201 25985 181.48 722 699 139.3
C 14 254 52238 311.95 712 716 165.2
C 3 233 20322 118.71 712 716 165.2
C 12 249 12080 68.8 712 716 165.2
D 1 52 747070 4233.23 711 689 176.3
D 13 249 99749 561.83 711 689 176.3
D 7 96 61029 342.23 711 689 176.3

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