ASTROSAT CZTI

Data Quality Report

Orbit 05127

Creation date: 2024-06-27T14:51:41.114268
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_230T05_9000000648_05127cztM0_level2.evt modeM0/AS1G05_230T05_9000000648_05127cztM0_level2_quad_clean.evt
Size (bytes)524,226,24076,849,920
Size499.9 MB 73.3 MB
Events in quadrant A3,461,626451,713
Events in quadrant B4,410,781460,142
Events in quadrant C3,338,400460,608
Events in quadrant D4,158,459435,008

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156742
B0179241
C0153721
D0177361

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74512353.153939%
B74512623.516307%
C74511542.066837%
D74513324.455778%

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 7811 7452 23 23 0.29% 0.31%
B 7811 7452 23 23 0.29% 0.31%
C 7811 7452 1 1 0.01% 0.01%
D 7811 7452 128 128 1.64% 1.72%

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 15 174 75410 416.74 864 841 178.9
A 0 50 39419 215.6 864 841 178.9
A 8 4 12573 65.57 864 841 178.9
B 8 3 523011 3108.4 869 848 168.0
B 15 204 335011 1989.25 869 848 168.0
B 0 219 69647 409.56 869 848 168.0
C 12 4 18650 89.66 850 851 198.5
C 13 61 6886 30.4 850 851 198.5
C 1 16 4412 17.94 850 851 198.5
D 2 33 880241 4190.42 847 817 209.9
D 2 14 30865 143.18 847 817 209.9
D 2 234 17841 81.12 847 817 209.9

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