ASTROSAT CZTI

Data Quality Report

Orbit 05645

Creation date: 2024-06-27T14:57:32.207961
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/AS1G06_032T02_9000000730_05645cztM0_level2.evt modeM0/AS1G06_032T02_9000000730_05645cztM0_level2_quad_clean.evt
Size (bytes)466,750,08086,137,920
Size445.1 MB 82.1 MB
Events in quadrant A3,102,681558,965
Events in quadrant B3,483,584551,373
Events in quadrant C3,422,640549,159
Events in quadrant D3,703,531514,338

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131782
B0143931
C0143471
D0150991

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62211181.896801%
B62211412.266517%
C6221610.980550%
D62213235.192091%

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 7406 6222 18 18 0.24% 0.29%
B 7406 6221 21 21 0.28% 0.34%
C 7406 6222 0 0 0.00% 0.00%
D 7406 6221 195 195 2.63% 3.13%

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 89495 556.67 776 761 159.4
A 13 6 15236 90.81 776 761 159.4
A 0 226 7858 44.52 776 761 159.4
B 10 16 158361 1071.8 769 752 147.1
B 15 204 106097 716.39 769 752 147.1
B 0 214 104955 708.62 769 752 147.1
C 1 16 528141 3087.91 738 742 170.8
C 13 61 6095 31.34 738 742 170.8
C 14 222 4361 21.19 738 742 170.8
D 4 95 565984 3162.56 719 696 178.7
D 12 233 183730 1024.0 719 696 178.7
D 2 152 47150 259.89 719 696 178.7

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
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter