ASTROSAT CZTI

Data Quality Report

Orbit 47632

Creation date: 2024-07-19T14:08:33.183834
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_071T01_9000006340_47632cztM0_level2.fits modeM0/AS1A13_071T01_9000006340_47632cztM0_level2_quad_clean.evt
Size (bytes)464,230,080103,461,120
Size442.7 MB 98.7 MB
Events in quadrant A7,270,317664,590
Events in quadrant B3,052,060714,276
Events in quadrant C3,025,588684,177
Events in quadrant D3,347,069629,302

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0265612
B0131541
C0135701
D0143301

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63014977.887637%
B6302711.126626%
C6302751.190098%
D63021261.999365%

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 7336 6302 214 214 2.92% 3.40%
B 7337 6303 1 1 0.01% 0.02%
C 7337 6303 18 18 0.25% 0.29%
D 7337 6303 68 68 0.93% 1.08%

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 3448080 23439.89 709 693 147.1
A 9 191 533287 3621.28 709 693 147.1
A 13 248 508711 3454.18 709 693 147.1
B 5 172 100783 719.85 715 694 139.0
B 0 190 44298 313.6 715 694 139.0
B 0 186 41332 292.27 715 694 139.0
C 14 254 189558 1120.38 711 712 168.6
C 1 3 52442 306.9 711 712 168.6
C 12 2 9256 50.69 711 712 168.6
D 2 249 474399 2667.17 714 692 177.6
D 6 239 79576 444.15 714 692 177.6
D 8 176 31706 174.62 714 692 177.6

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