ASTROSAT CZTI

Data Quality Report

Orbit 03653

Creation date: 2024-06-27T14:32:00.950992
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/AS1G05_234T02_9000000474_03653cztM0_level2.evt modeM0/AS1G05_234T02_9000000474_03653cztM0_level2_quad_clean.evt
Size (bytes)580,325,76097,534,080
Size553.4 MB 93.0 MB
Events in quadrant A4,008,215598,772
Events in quadrant B5,508,069595,401
Events in quadrant C3,744,510603,035
Events in quadrant D3,765,189593,508

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01700
B01700
C01700
D01700

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0178184
B0218493
C0170863
D0174473

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80911501.853912%
B80912052.533679%
C8091420.519095%
D8091410.506736%

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 8646 8095 80 80 0.93% 0.99%
B 8645 8094 46 46 0.53% 0.57%
C 8646 8095 9 9 0.10% 0.11%
D 8646 8095 21 21 0.24% 0.26%

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 0 50 339737 1790.01 915 892 189.3
A 8 15 54284 282.05 915 892 189.3
A 13 251 29007 148.52 915 892 189.3
B 14 167 930569 5104.21 932 904 182.1
B 15 204 669284 3669.66 932 904 182.1
B 5 172 142028 774.82 932 904 182.1
C 9 247 65108 303.66 908 911 211.4
C 2 53 46420 215.27 908 911 211.4
C 1 16 29696 136.16 908 911 211.4
D 2 118 134843 621.35 898 875 215.6
D 2 37 34668 156.73 898 875 215.6
D 13 223 34516 156.03 898 875 215.6

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
Veto Counter