ASTROSAT CZTI

Data Quality Report

Orbit 09555

Creation date: 2024-06-27T15:47:41.466002
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_069T01_9000001356_09555cztM0_level2.evt modeM0/AS1G07_069T01_9000001356_09555cztM0_level2_quad_clean.evt
Size (bytes)460,477,44092,433,600
Size439.1 MB 88.2 MB
Events in quadrant A3,227,184597,452
Events in quadrant B3,246,238591,575
Events in quadrant C2,863,410599,018
Events in quadrant D4,186,349576,981

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01371227
B01395545
C01278133
D01654345

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6227951.525614%
B6221731.173445%
C6223570.915957%
D6222761.221472%

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 7169 6240 0 0 0.00% 0.00%
B 7169 6239 12 12 0.17% 0.19%
C 7169 6240 2 2 0.03% 0.03%
D 7169 6239 55 55 0.77% 0.88%

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 1 162 167958 1113.2 740 724 150.2
A 1 178 67201 442.51 740 724 150.2
A 1 161 65620 431.98 740 724 150.2
B 4 80 192959 1389.71 738 721 138.3
B 0 214 72791 521.0 738 721 138.3
B 15 85 45970 327.11 738 721 138.3
C 14 234 18188 102.94 729 734 169.6
C 13 61 5446 27.79 729 734 169.6
C 3 202 1938 7.1 729 734 169.6
D 13 122 959489 5103.43 723 707 187.9
D 12 227 175736 931.65 723 707 187.9
D 1 52 160479 850.44 723 707 187.9

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