ASTROSAT CZTI

Data Quality Report

Orbit 10590

Creation date: 2024-06-27T16:01:12.121559
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/AS1T01_191T01_9000001536_10590cztM0_level2.evt modeM0/AS1T01_191T01_9000001536_10590cztM0_level2_quad_clean.evt
Size (bytes)482,368,32089,412,480
Size460.0 MB 85.3 MB
Events in quadrant A2,797,443589,827
Events in quadrant B4,614,721567,251
Events in quadrant C3,291,228581,706
Events in quadrant D3,501,476553,312

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123122
B0176321
C0138761
D0141711

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5950280.470588%
B59504948.302521%
C5950651.092437%
D5950681.142857%

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 7005 5951 1 1 0.01% 0.02%
B 7005 5951 352 352 5.02% 5.91%
C 7005 5951 82 82 1.17% 1.38%
D 7005 5951 67 67 0.96% 1.13%

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 13 251 24127 158.09 710 697 148.2
A 14 254 13913 89.17 710 697 148.2
A 1 162 13828 88.6 710 697 148.2
B 4 239 1731024 13056.95 695 681 132.5
B 11 51 63303 472.54 695 681 132.5
B 0 219 43815 325.48 695 681 132.5
C 4 254 638131 4021.85 678 685 158.5
C 4 175 5815 32.37 678 685 158.5
C 13 61 5221 28.62 678 685 158.5
D 8 195 334872 2048.06 673 656 163.2
D 12 233 183654 1121.4 673 656 163.2
D 5 222 131016 798.84 673 656 163.2

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