ASTROSAT CZTI

Data Quality Report

Orbit 03454

Creation date: 2024-06-27T14:29:14.162942
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/AS1G05_167T01_9000000456_03454cztM0_level2.evt modeM0/AS1G05_167T01_9000000456_03454cztM0_level2_quad_clean.evt
Size (bytes)467,228,16064,880,640
Size445.6 MB 61.9 MB
Events in quadrant A3,394,920375,156
Events in quadrant B3,923,095376,911
Events in quadrant C3,106,371374,935
Events in quadrant D3,263,955363,784

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145512
B0158561
C0138831
D0145531

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67941331.957610%
B6794861.265823%
C6794640.942008%
D67941051.545481%

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 7719 6794 43 43 0.56% 0.63%
B 7719 6794 10 10 0.13% 0.15%
C 7719 6794 0 0 0.00% 0.00%
D 7719 6794 37 37 0.48% 0.54%

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 0 50 216716 1305.05 804 787 165.5
A 8 15 57444 342.43 804 787 165.5
A 0 31 17750 102.52 804 787 165.5
B 15 204 612432 3849.17 811 792 158.9
B 0 228 47150 291.74 811 792 158.9
B 14 167 38558 237.67 811 792 158.9
C 1 192 17805 94.15 779 785 180.8
C 15 208 10623 54.42 779 785 180.8
C 14 67 7785 38.72 779 785 180.8
D 13 223 207686 1087.08 778 754 190.4
D 4 160 45666 235.94 778 754 190.4
D 3 247 25096 127.88 778 754 190.4

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