ASTROSAT CZTI

Data Quality Report

Orbit 07738

Creation date: 2024-06-27T15:23:20.505503
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/AS1G06_064T01_9000001066_07738cztM0_level2.evt modeM0/AS1G06_064T01_9000001066_07738cztM0_level2_quad_clean.evt
Size (bytes)460,025,28098,380,800
Size438.7 MB 93.8 MB
Events in quadrant A3,170,162634,282
Events in quadrant B3,645,982642,594
Events in quadrant C3,181,162625,182
Events in quadrant D3,463,611594,542

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141713
B0154622
C0141382
D0151492

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6932450.649163%
B6932881.269475%
C6932310.447201%
D6932951.370456%

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 8587 6933 2 2 0.02% 0.03%
B 8587 6934 15 15 0.17% 0.22%
C 8587 6934 2 2 0.02% 0.03%
D 8587 6934 42 42 0.49% 0.61%

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 13 170 11872 66.12 814 795 167.5
A 15 234 11222 62.24 814 795 167.5
A 8 15 8852 48.1 814 795 167.5
B 4 173 141132 886.16 824 804 158.4
B 0 229 120157 753.71 824 804 158.4
B 4 239 45730 283.71 824 804 158.4
C 9 68 63760 339.14 793 797 185.7
C 12 4 8708 42.61 793 797 185.7
C 8 222 7064 33.76 793 797 185.7
D 7 203 137773 707.75 786 761 193.6
D 12 221 135120 694.05 786 761 193.6
D 7 55 44727 227.11 786 761 193.6

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
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter