ASTROSAT CZTI

Data Quality Report

Orbit 29685

Creation date: 2024-06-27T20:06:48.522218
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/AS1A10_093T01_9000004274_29685cztM0_level2.evt modeM0/AS1A10_093T01_9000004274_29685cztM0_level2_quad_clean.evt
Size (bytes)489,432,96082,756,800
Size466.8 MB 78.9 MB
Events in quadrant A2,824,318548,882
Events in quadrant B3,098,397553,736
Events in quadrant C3,117,544507,098
Events in quadrant D5,385,630487,709

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123821
B0130751
C0131141
D0200611

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5846480.821074%
B58471131.932615%
C58473225.507098%
D58474928.414572%

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 6926 5846 0 0 0.00% 0.00%
B 6927 5847 52 52 0.75% 0.89%
C 6927 5847 0 0 0.00% 0.00%
D 6927 5847 405 405 5.85% 6.93%

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 12 16 65818 456.56 708 693 142.6
A 12 194 15368 102.88 708 693 142.6
A 11 29 12269 81.15 708 693 142.6
B 0 229 242428 1811.49 703 685 133.5
B 15 32 28616 209.3 703 685 133.5
B 4 171 24599 179.2 703 685 133.5
C 14 238 203304 1299.33 672 677 155.9
C 14 254 133020 848.64 672 677 155.9
C 3 233 127220 811.44 672 677 155.9
D 7 80 1766960 11109.86 669 653 159.0
D 8 195 558388 3508.09 669 653 159.0
D 13 104 208501 1307.34 669 653 159.0

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