ASTROSAT CZTI

Data Quality Report

Orbit 08216

Creation date: 2024-06-27T15:29:33.830664
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/AS1C02_041T01_9000001136_08216cztM0_level2.evt modeM0/AS1C02_041T01_9000001136_08216cztM0_level2_quad_clean.evt
Size (bytes)471,565,44067,305,600
Size449.7 MB 64.2 MB
Events in quadrant A3,415,174391,287
Events in quadrant B3,373,151395,493
Events in quadrant C3,579,832389,130
Events in quadrant D3,440,919377,579

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148753
B0145062
C0154382
D0151062

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6949971.395884%
B6949530.762700%
C6949360.518060%
D6949921.323932%

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 8779 6951 37 37 0.42% 0.53%
B 8779 6951 1 1 0.01% 0.01%
C 8779 6951 0 0 0.00% 0.00%
D 8779 6951 60 60 0.68% 0.86%

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 5 16 219205 1285.52 823 806 169.9
A 15 79 16183 90.51 823 806 169.9
A 8 15 9483 51.07 823 806 169.9
B 0 214 70374 434.67 831 812 160.0
B 4 81 38267 234.05 831 812 160.0
B 0 213 19746 118.31 831 812 160.0
C 9 68 466694 2496.83 797 800 186.6
C 13 61 6012 27.93 797 800 186.6
C 14 67 4305 18.78 797 800 186.6
D 1 52 217809 1045.42 792 771 207.6
D 13 122 60236 286.43 792 771 207.6
D 2 14 40811 192.86 792 771 207.6

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
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter