ASTROSAT CZTI

Data Quality Report

Orbit 14982

Creation date: 2024-06-27T17:02:07.590757
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/AS1T02_056T01_9000002210_14982cztM0_level2.evt modeM0/AS1T02_056T01_9000002210_14982cztM0_level2_quad_clean.evt
Size (bytes)505,195,20091,512,000
Size481.8 MB 87.3 MB
Events in quadrant A3,586,683598,655
Events in quadrant B4,660,108586,971
Events in quadrant C3,288,429579,579
Events in quadrant D3,332,876562,151

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146082
B0178371
C0134141
D0139661

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63651552.435192%
B63654517.085625%
C63651051.649647%
D63651412.215240%

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 7536 6366 0 0 0.00% 0.00%
B 7536 6366 194 194 2.57% 3.05%
C 7536 6366 0 0 0.00% 0.00%
D 7536 6366 22 22 0.29% 0.35%

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 1 162 133942 783.11 842 826 170.0
A 1 178 63160 366.71 842 826 170.0
A 1 161 54958 318.46 842 826 170.0
B 10 245 1102128 7096.64 820 800 155.2
B 3 64 106972 684.14 820 800 155.2
B 3 209 82178 524.38 820 800 155.2
C 3 233 161330 871.18 800 804 184.3
C 10 22 8482 41.67 800 804 184.3
C 13 61 5809 27.16 800 804 184.3
D 4 239 102838 523.05 808 786 195.1
D 13 249 98475 500.69 808 786 195.1
D 2 234 24829 123.23 808 786 195.1

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