ASTROSAT CZTI

Data Quality Report

Orbit 36033

Creation date: 2024-06-27T21:21:33.485577
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/AS1T04_069T01_9000005158_36033cztM0_level2.evt modeM0/AS1T04_069T01_9000005158_36033cztM0_level2_quad_clean.evt
Size (bytes)463,435,20083,715,840
Size442.0 MB 79.8 MB
Events in quadrant A2,713,937552,300
Events in quadrant B3,555,147542,023
Events in quadrant C3,963,615533,546
Events in quadrant D3,420,006513,316

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115853
B0141062
C0152842
D0137382

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0350
B0350
C0350
D0350

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A563450.088747%
B56342424.295350%
C56342774.916578%
D56341362.413916%

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 9130 5636 0 0 0.00% 0.00%
B 9130 5636 181 181 1.98% 3.21%
C 9130 5636 227 227 2.49% 4.03%
D 9130 5636 108 108 1.18% 1.92%

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 175574 1311.5 654 641 133.4
A 13 254 9878 69.25 654 641 133.4
A 3 137 6880 46.77 654 641 133.4
B 5 236 710579 5700.8 638 621 124.5
B 5 172 125005 998.78 638 621 124.5
B 5 255 114290 912.74 638 621 124.5
C 9 187 1027238 7145.93 615 619 143.7
C 15 214 234740 1629.63 615 619 143.7
C 0 10 183398 1272.26 615 619 143.7
D 10 118 276936 1810.07 628 612 152.7
D 12 235 189187 1235.26 628 612 152.7
D 1 52 135190 881.56 628 612 152.7

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