ASTROSAT CZTI

Data Quality Report

Orbit 19286

Creation date: 2024-06-27T18:01:51.535897
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/AS1T03_099T03_9000002854_19286cztM0_level2.evt modeM0/AS1T03_099T03_9000002854_19286cztM0_level2_quad_clean.evt
Size (bytes)73,002,24013,861,440
Size69.6 MB 13.2 MB
Events in quadrant A497,43885,060
Events in quadrant B506,81387,956
Events in quadrant C521,09981,245
Events in quadrant D605,93479,504

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A022560
B022520
C022580
D025420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A112500.000000%
B112510.088889%
C1125100.888889%
D112580.711111%

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 1125 1125 0 0 0.00% 0.00%
B 1125 1125 0 0 0.00% 0.00%
C 1125 1125 0 0 0.00% 0.00%
D 1125 1125 5 5 0.44% 0.44%

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 11 29 2047 68.31 128 125 28.1
A 13 254 1627 53.38 128 125 28.1
A 4 2 1400 45.31 128 125 28.1
B 12 111 3067 110.67 129 125 26.6
B 11 111 2646 94.84 129 125 26.6
B 14 111 2347 83.59 129 125 26.6
C 14 238 19898 634.82 127 127 31.1
C 0 207 2673 81.75 127 127 31.1
C 3 233 2594 79.21 127 127 31.1
D 10 66 94750 2872.93 125 121 32.9
D 1 52 35095 1061.81 125 121 32.9
D 2 234 4693 138.81 125 121 32.9

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