ASTROSAT CZTI

Data Quality Report

Orbit 43991

Creation date: 2024-06-27T22:58:02.033894
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/AS1A13_065T06_9000005924_43991cztM0_level2.fits modeM0/AS1A13_065T06_9000005924_43991cztM0_level2_quad_clean.evt
Size (bytes)544,608,000108,475,200
Size519.4 MB 103.5 MB
Events in quadrant A8,107,766656,796
Events in quadrant B4,740,230719,163
Events in quadrant C3,149,239744,046
Events in quadrant D3,624,438681,975

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0292282
B0187012
C0143272
D0155402

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6923129818.749097%
B69236599.518995%
C6923660.953344%
D69231402.022245%

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 8653 6925 840 840 9.71% 12.13%
B 8653 6925 309 309 3.57% 4.46%
C 8653 6925 0 0 0.00% 0.00%
D 8653 6925 40 40 0.46% 0.58%

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 15 223 2664744 17010.74 752 736 156.6
A 14 238 1227965 7836.34 752 736 156.6
A 10 83 1194970 7625.65 752 736 156.6
B 5 172 1179732 7687.65 771 748 153.4
B 15 36 212807 1382.75 771 748 153.4
B 0 213 128235 831.29 771 748 153.4
C 3 233 58830 308.74 790 792 188.0
C 15 157 5365 24.33 790 792 188.0
C 13 61 5344 24.21 790 792 188.0
D 1 52 168515 823.4 787 760 203.7
D 4 222 92845 451.98 787 760 203.7
D 13 171 91758 446.65 787 760 203.7

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