ASTROSAT CZTI

Data Quality Report

Orbit 03686

Creation date: 2024-06-27T14:32:13.821682
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_152T04_9000000480_03686cztM0_level2.evt modeM0/AS1G05_152T04_9000000480_03686cztM0_level2_quad_clean.evt
Size (bytes)525,392,64056,914,560
Size501.1 MB 54.3 MB
Events in quadrant A4,124,398323,582
Events in quadrant B3,707,641329,654
Events in quadrant C4,420,590283,869
Events in quadrant D3,204,225318,425

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0166303
B0153472
C0179712
D0144322

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67002103.134328%
B6700610.910448%
C67006339.447761%
D6700410.611940%

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 7690 6700 126 126 1.64% 1.88%
B 7690 6701 4 4 0.05% 0.06%
C 7690 6700 513 513 6.67% 7.66%
D 7690 6701 11 11 0.14% 0.16%

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 13 251 565116 3576.01 772 755 157.8
A 13 164 373599 2362.49 772 755 157.8
A 0 50 84919 533.3 772 755 157.8
B 15 204 280164 1823.86 790 770 153.2
B 14 167 110642 717.24 790 770 153.2
B 3 0 101993 660.78 790 770 153.2
C 2 53 1563865 9328.94 713 715 167.6
C 14 234 63553 375.02 713 715 167.6
C 13 61 6146 32.41 713 715 167.6
D 1 20 157238 858.76 752 730 182.2
D 5 233 49388 266.98 752 730 182.2
D 2 37 45182 243.91 752 730 182.2

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
Veto Counter