ASTROSAT CZTI

Data Quality Report

Orbit 09832

Creation date: 2024-06-27T15:51:09.974109
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/AS1G07_020T01_9000001398_09832cztM0_level2.evt modeM0/AS1G07_020T01_9000001398_09832cztM0_level2_quad_clean.evt
Size (bytes)542,162,88077,777,280
Size517.0 MB 74.2 MB
Events in quadrant A3,630,366456,836
Events in quadrant B3,843,705465,428
Events in quadrant C3,636,139461,954
Events in quadrant D4,782,732431,998

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01619675
B01654489
C01626672
D019609125

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01582
B01580
C01582
D01580

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77492873.703704%
B77433334.300659%
C77502272.929032%
D77454786.171724%

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 7854 7781 0 0 0.00% 0.00%
B 7854 7781 12 12 0.15% 0.15%
C 7854 7784 0 0 0.00% 0.00%
D 7854 7785 230 230 2.93% 2.95%

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 0 226 8427 38.76 940 917 193.8
A 12 194 7614 34.56 940 917 193.8
A 14 111 4841 20.25 940 917 193.8
B 0 214 93371 499.27 944 916 185.2
B 4 173 25256 131.44 944 916 185.2
B 12 111 20803 107.39 944 916 185.2
C 8 128 15469 67.58 922 924 215.2
C 8 112 8422 34.84 922 924 215.2
C 13 61 6976 28.12 922 924 215.2
D 1 52 832741 3783.56 902 875 219.9
D 7 46 149514 676.05 902 875 219.9
D 7 71 96744 436.04 902 875 219.9

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