ASTROSAT CZTI

Data Quality Report

Orbit 30763

Creation date: 2024-06-27T20:19:20.646384
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/AS1A10_053T37_9000004444_30763cztM0_level2.evt modeM0/AS1A10_053T37_9000004444_30763cztM0_level2_quad_clean.evt
Size (bytes)658,696,32086,241,600
Size628.2 MB 82.2 MB
Events in quadrant A3,270,418548,497
Events in quadrant B5,247,157550,131
Events in quadrant C3,572,812536,311
Events in quadrant D7,399,454503,005

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139381
B0206741
C0147551
D0270331

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67921201.766784%
B67931872.752834%
C67932073.047255%
D67936118.994553%

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 7252 6792 0 0 0.00% 0.00%
B 7253 6793 1 1 0.01% 0.01%
C 7253 6793 38 38 0.52% 0.56%
D 7253 6793 584 584 8.05% 8.60%

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 13 254 12408 67.76 844 826 170.9
A 3 137 8664 45.85 844 826 170.9
A 0 226 7124 36.84 844 826 170.9
B 6 159 1875303 11621.86 831 809 161.3
B 0 182 44376 270.12 831 809 161.3
B 12 111 20069 119.41 831 809 161.3
C 3 233 243959 1282.51 806 812 189.6
C 14 238 129131 676.84 806 812 189.6
C 0 10 38483 198.7 806 812 189.6
D 8 195 4219811 21890.66 809 787 192.7
D 2 250 44921 228.99 809 787 192.7
D 2 234 30786 155.65 809 787 192.7

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