ASTROSAT CZTI

Data Quality Report

Orbit 46197

Creation date: 2024-06-27T23:20:16.221348
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_093T40_9000006182_46197cztM0_level2.fits modeM0/AS1A13_093T40_9000006182_46197cztM0_level2_quad_clean.evt
Size (bytes)452,528,640100,071,360
Size431.6 MB 95.4 MB
Events in quadrant A5,478,273681,444
Events in quadrant B3,308,785695,362
Events in quadrant C2,809,142667,119
Events in quadrant D4,685,093563,404

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200121
B0137061
C0128231
D0181731

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60501572.595041%
B60511322.181458%
C6051621.024624%
D60516059.998347%

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 7160 6050 14 14 0.20% 0.23%
B 7161 6052 71 71 0.99% 1.17%
C 7161 6052 42 42 0.59% 0.69%
D 7161 6051 378 378 5.28% 6.25%

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 2743350 19382.42 682 669 141.5
A 9 191 34798 241.19 682 669 141.5
A 0 247 30244 209.01 682 669 141.5
B 3 112 296765 2264.01 673 654 130.8
B 5 172 241689 1842.91 673 654 130.8
B 5 255 54086 408.53 673 654 130.8
C 12 2 170057 1105.41 658 660 153.2
C 14 254 61422 396.51 658 660 153.2
C 3 233 6888 40.64 658 660 153.2
D 2 249 889782 5621.11 631 611 158.2
D 2 37 678633 4286.28 631 611 158.2
D 1 52 358847 2264.67 631 611 158.2

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