ASTROSAT CZTI

Data Quality Report

Orbit 46591

Creation date: 2024-06-27T23:25:10.511962
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_092T03_9000006234_46591cztM0_level2.fits modeM0/AS1A13_092T03_9000006234_46591cztM0_level2_quad_clean.evt
Size (bytes)488,033,280109,820,160
Size465.4 MB 104.7 MB
Events in quadrant A6,397,903722,635
Events in quadrant B3,484,443760,876
Events in quadrant C3,074,318740,244
Events in quadrant D4,608,148651,585

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0233832
B0144852
C0135682
D0180502

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64562904.491945%
B64562153.330235%
C6455651.006971%
D64552974.601084%

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 7611 6457 32 32 0.42% 0.50%
B 7611 6457 57 57 0.75% 0.88%
C 7610 6456 1 1 0.01% 0.02%
D 7610 6456 162 162 2.13% 2.51%

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 3355630 21352.43 761 743 157.1
A 9 191 36158 225.4 761 743 157.1
A 13 34 17622 107.43 761 743 157.1
B 15 201 126202 836.33 766 743 150.0
B 5 32 112084 742.21 766 743 150.0
B 12 0 53014 348.44 766 743 150.0
C 14 254 67265 373.36 756 759 178.1
C 12 249 28906 158.02 756 759 178.1
C 3 233 15939 85.22 756 759 178.1
D 1 52 1111040 5996.78 738 715 185.2
D 2 37 191746 1031.74 738 715 185.2
D 13 249 175203 942.4 738 715 185.2

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