ASTROSAT CZTI

Data Quality Report

Orbit 21034

Creation date: 2024-06-27T18:22:45.981085
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/AS1A05_088T02_9000003106_21034cztM0_level2.evt modeM0/AS1A05_088T02_9000003106_21034cztM0_level2_quad_clean.evt
Size (bytes)485,328,96073,440,000
Size462.8 MB 70.0 MB
Events in quadrant A3,227,400455,079
Events in quadrant B3,638,764455,230
Events in quadrant C3,242,674434,136
Events in quadrant D4,138,369416,146

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136922
B0148742
C0136882
D0166712

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6643981.475237%
B66431402.107482%
C66431301.956947%
D66432153.236490%

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 7493 6644 0 0 0.00% 0.00%
B 7493 6644 9 9 0.12% 0.14%
C 7493 6644 0 0 0.00% 0.00%
D 7493 6644 95 95 1.27% 1.43%

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 13 254 8866 47.78 837 818 168.4
A 0 226 7187 37.81 837 818 168.4
A 3 137 6736 35.13 837 818 168.4
B 0 189 185023 1167.63 836 816 157.8
B 0 182 76327 478.64 836 816 157.8
B 7 220 32732 202.31 836 816 157.8
C 14 238 124830 663.91 799 804 186.8
C 13 61 5570 25.51 799 804 186.8
C 0 207 2941 11.44 799 804 186.8
D 1 52 443220 2261.89 799 776 195.6
D 1 20 261282 1331.77 799 776 195.6
D 12 233 169564 862.89 799 776 195.6

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