ASTROSAT CZTI

Data Quality Report

Orbit 03696

Creation date: 2024-06-27T14:32:33.320403
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_009T01_9000000482_03696cztM0_level2.evt modeM0/AS1G05_009T01_9000000482_03696cztM0_level2_quad_clean.evt
Size (bytes)532,457,28089,455,680
Size507.8 MB 85.3 MB
Events in quadrant A4,177,835544,315
Events in quadrant B4,556,129551,038
Events in quadrant C3,407,844551,204
Events in quadrant D3,472,421538,307

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0177023
B0185742
C0155592
D0159872

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75262242.976349%
B75261692.245549%
C7526280.372044%
D7526430.571353%

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 7796 7527 129 129 1.65% 1.71%
B 7796 7527 67 67 0.86% 0.89%
C 7796 7527 0 0 0.00% 0.00%
D 7796 7527 14 14 0.18% 0.19%

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 458168 2526.37 875 852 181.0
A 13 164 200078 1100.59 875 852 181.0
A 0 50 85223 466.09 875 852 181.0
B 14 167 471406 2700.84 890 868 174.2
B 15 204 401400 2299.01 890 868 174.2
B 5 70 121883 694.61 890 868 174.2
C 2 53 11534 52.69 864 867 202.4
C 13 61 7264 31.6 864 867 202.4
C 8 128 6338 27.02 864 867 202.4
D 13 239 96818 458.03 861 836 209.6
D 13 223 42916 200.81 861 836 209.6
D 5 233 39038 182.3 861 836 209.6

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
Veto Counter