ASTROSAT CZTI

Data Quality Report

Orbit 05861

Creation date: 2024-06-27T15:00:07.688224
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/AS1G06_033T01_9000000760_05861cztM0_level2.evt modeM0/AS1G06_033T01_9000000760_05861cztM0_level2_quad_clean.evt
Size (bytes)469,175,04055,100,160
Size447.4 MB 52.5 MB
Events in quadrant A3,160,564308,151
Events in quadrant B3,305,934310,345
Events in quadrant C3,109,349309,698
Events in quadrant D4,193,100287,682

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134033
B0137722
C0133882
D0166932

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6479500.771724%
B6479761.173021%
C6479390.601945%
D64791562.407779%

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 7744 6480 0 0 0.00% 0.00%
B 7744 6480 2 2 0.03% 0.03%
C 7744 6480 0 0 0.00% 0.00%
D 7744 6480 95 95 1.23% 1.47%

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 0 226 8009 43.18 820 804 166.9
A 12 194 7859 42.28 820 804 166.9
A 13 254 3670 17.18 820 804 166.9
B 15 204 24537 151.01 832 815 157.1
B 0 219 23844 146.6 832 815 157.1
B 12 111 14377 86.33 832 815 157.1
C 13 61 6626 31.6 794 801 184.4
C 14 67 5088 23.25 794 801 184.4
C 1 16 3469 14.47 794 801 184.4
D 2 152 385983 2019.92 783 761 190.7
D 1 239 231749 1211.19 783 761 190.7
D 12 110 127814 666.21 783 761 190.7

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