ASTROSAT CZTI

Data Quality Report

Orbit 03194

Creation date: 2024-06-27T14:25:46.453980
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_127T01_9000000436_03194cztM0_level2.evt modeM0/AS1G05_127T01_9000000436_03194cztM0_level2_quad_clean.evt
Size (bytes)728,922,24086,639,040
Size695.2 MB 82.6 MB
Events in quadrant A3,032,140575,198
Events in quadrant B3,368,817575,170
Events in quadrant C11,712,902464,823
Events in quadrant D3,516,965548,971

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135482
B0145781
C0393391
D0151201

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6582170.258280%
B6582751.139471%
C6582282842.965664%
D6582811.230629%

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 7592 6583 5 5 0.07% 0.08%
B 7592 6582 15 15 0.20% 0.23%
C 7591 6581 2844 2844 37.47% 43.22%
D 7592 6583 76 76 1.00% 1.15%

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 0 118 33393 206.62 774 759 157.9
A 0 226 11759 69.65 774 759 157.9
A 12 194 8142 46.74 774 759 157.9
B 4 80 233392 1538.97 786 768 151.2
B 15 54 16678 105.26 786 768 151.2
B 0 231 12065 74.74 786 768 151.2
C 12 206 8714975 59058.8 637 643 147.6
C 1 192 406222 2748.69 637 643 147.6
C 6 80 49074 328.23 637 643 147.6
D 13 223 162348 889.59 747 726 181.7
D 12 233 145542 797.09 747 726 181.7
D 5 233 97177 530.88 747 726 181.7

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
Veto Counter