ASTROSAT CZTI

Data Quality Report

Orbit 32244

Creation date: 2024-06-27T20:38:00.786604
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/AS1T04_054T01_9000004694_32244cztM0_level2.evt modeM0/AS1T04_054T01_9000004694_32244cztM0_level2_quad_clean.evt
Size (bytes)1,122,981,120179,576,640
Size1.0 GB 171.3 MB
Events in quadrant A6,380,7421,168,446
Events in quadrant B10,313,6131,163,796
Events in quadrant C7,340,4911,117,638
Events in quadrant D9,092,6801,085,396

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02660
B02660
C02660
D02660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0271684
B0404093
C0297943
D0358423

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A130812752.102286%
B130814873.722957%
C130818726.666157%
D130813312.530388%

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 14551 13085 12 12 0.08% 0.09%
B 14551 13085 78 78 0.54% 0.60%
C 14551 13085 11 11 0.08% 0.08%
D 14551 13085 107 107 0.74% 0.82%

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 96 106402 322.82 1614 1579 324.7
A 13 6 28109 81.7 1614 1579 324.7
A 13 254 25410 73.39 1614 1579 324.7
B 6 159 3481051 11494.37 1590 1549 302.7
B 5 172 253051 830.82 1590 1549 302.7
B 0 229 82272 266.66 1590 1549 302.7
C 3 233 528869 1465.19 1523 1529 359.9
C 14 238 431848 1195.62 1523 1529 359.9
C 14 254 255806 706.5 1523 1529 359.9
D 8 195 2406837 6409.27 1562 1520 375.3
D 12 233 405467 1076.37 1562 1520 375.3
D 2 250 135821 357.86 1562 1520 375.3

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