ASTROSAT CZTI

Data Quality Report

Orbit 10769

Creation date: 2024-06-27T16:03:46.122383
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/AS1G07_057T03_9000001552_10769cztM0_level2.evt modeM0/AS1G07_057T03_9000001552_10769cztM0_level2_quad_clean.evt
Size (bytes)521,714,880124,326,720
Size497.5 MB 118.6 MB
Events in quadrant A3,781,067824,431
Events in quadrant B4,110,125848,829
Events in quadrant C2,937,649863,637
Events in quadrant D4,555,499800,242

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152602
B0161581
C0126481
D0178291

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61372193.568519%
B61373014.904677%
C6137520.847320%
D61372474.024768%

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 7457 6138 84 84 1.13% 1.37%
B 7457 6138 157 157 2.11% 2.56%
C 7457 6138 0 0 0.00% 0.00%
D 7457 6138 158 158 2.12% 2.57%

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 15 239 475358 3164.05 748 735 150.0
A 15 223 241464 1604.81 748 735 150.0
A 4 2 88795 587.05 748 735 150.0
B 4 239 745630 5313.31 756 740 140.2
B 0 85 313323 2229.66 756 740 140.2
B 15 204 50231 353.02 756 740 140.2
C 13 61 5767 29.28 752 756 171.1
C 8 222 3339 15.09 752 756 171.1
C 3 202 1931 6.87 752 756 171.1
D 1 52 458799 2637.39 739 721 173.7
D 10 199 437780 2516.37 739 721 173.7
D 8 195 399524 2296.11 739 721 173.7

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