ASTROSAT CZTI

Data Quality Report

Orbit 05547

Creation date: 2024-06-27T14:56:35.491081
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/AS1A02_086T01_9000000714_05547cztM0_level2.evt modeM0/AS1A02_086T01_9000000714_05547cztM0_level2_quad_clean.evt
Size (bytes)228,104,64043,989,120
Size217.5 MB 42.0 MB
Events in quadrant A1,483,024281,863
Events in quadrant B1,653,000283,212
Events in quadrant C1,465,418281,787
Events in quadrant D2,094,681264,682

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A064662
B068831
C064771
D083911

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0640
B0640
C0640
D0640

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3092361.164295%
B3092672.166882%
C3092180.582147%
D30922096.759379%

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 3472 3093 0 0 0.00% 0.00%
B 3472 3093 1 1 0.03% 0.03%
C 3472 3093 0 0 0.00% 0.00%
D 3472 3093 136 136 3.92% 4.40%

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 12 194 3774 41.64 385 375 81.6
A 0 226 3769 41.58 385 375 81.6
A 13 14 1422 12.83 385 375 81.6
B 15 204 110586 1414.97 386 376 77.9
B 10 246 28293 358.42 386 376 77.9
B 12 111 7196 87.56 386 376 77.9
C 1 16 7523 81.26 371 373 88.0
C 8 128 5380 56.9 371 373 88.0
C 13 61 3032 30.22 371 373 88.0
D 2 152 685110 7530.5 364 353 90.9
D 2 206 15202 163.3 364 353 90.9
D 8 195 12772 136.58 364 353 90.9

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