ASTROSAT CZTI

Data Quality Report

Orbit 47505

Creation date: 2024-07-11T00:57:06.840732
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_037T05_9000006332_47505cztM0_level2.fits modeM0/AS1A13_037T05_9000006332_47505cztM0_level2_quad_clean.evt
Size (bytes)510,238,080116,020,800
Size486.6 MB 110.6 MB
Events in quadrant A7,298,302771,166
Events in quadrant B4,383,344797,147
Events in quadrant C3,068,138776,923
Events in quadrant D3,623,253706,107

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0262652
B0174502
C0137932
D0153423

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66334316.497814%
B66333585.397256%
C6633490.738731%
D66321151.734017%

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 7783 6634 87 87 1.12% 1.31%
B 7783 6634 160 160 2.06% 2.41%
C 7783 6634 0 0 0.00% 0.00%
D 7782 6633 59 59 0.76% 0.89%

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 4148547 25636.67 781 769 161.8
A 9 191 107090 657.15 781 769 161.8
A 13 248 20424 121.48 781 769 161.8
B 0 200 1013036 6713.48 774 753 150.8
B 5 32 174333 1151.19 774 753 150.8
B 0 198 103471 681.23 774 753 150.8
C 0 207 96564 541.91 760 767 176.8
C 13 61 5101 24.52 760 767 176.8
C 14 254 3368 14.71 760 767 176.8
D 7 55 188818 986.94 761 737 190.6
D 2 165 137859 719.54 761 737 190.6
D 2 249 124270 648.23 761 737 190.6

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