ASTROSAT CZTI

Data Quality Report

Orbit 07369

Creation date: 2024-06-27T15:19:02.476107
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_151T02_9000001010_07369cztM0_level2.evt modeM0/AS1G06_151T02_9000001010_07369cztM0_level2_quad_clean.evt
Size (bytes)539,421,12088,551,360
Size514.4 MB 84.4 MB
Events in quadrant A4,963,891546,648
Events in quadrant B3,314,601573,484
Events in quadrant C3,280,629562,850
Events in quadrant D4,316,472525,210

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0194613
B0145662
C0144242
D0174922

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A678381512.015332%
B6783660.973021%
C6783781.149934%
D67832103.095975%

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 9173 6786 571 571 6.22% 8.41%
B 9173 6786 1 1 0.01% 0.01%
C 9173 6786 25 25 0.27% 0.37%
D 9173 6786 138 138 1.50% 2.03%

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 15 234 1758843 11522.66 753 736 152.6
A 14 111 280297 1832.25 753 736 152.6
A 15 239 23086 146.48 753 736 152.6
B 0 214 82479 516.12 827 807 158.2
B 12 111 16177 97.13 827 807 158.2
B 11 111 12566 74.31 827 807 158.2
C 9 68 129602 692.37 797 801 186.0
C 1 16 22808 118.3 797 801 186.0
C 8 229 16155 82.53 797 801 186.0
D 1 52 682207 3536.9 783 758 192.7
D 1 20 296077 1532.78 783 758 192.7
D 14 34 254626 1317.64 783 758 192.7

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