ASTROSAT CZTI

Data Quality Report

Orbit 16083

Creation date: 2024-06-27T17:17:45.685173
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/AS1T02_110T01_9000002376_16083cztM0_level2.evt modeM0/AS1T02_110T01_9000002376_16083cztM0_level2_quad_clean.evt
Size (bytes)441,460,80090,020,160
Size421.0 MB 85.8 MB
Events in quadrant A3,206,160581,857
Events in quadrant B3,542,309581,725
Events in quadrant C3,107,640556,573
Events in quadrant D3,076,622557,440

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137593
B0147292
C0132952
D0136122

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6431741.150676%
B6431771.197325%
C6431620.964080%
D6431240.373192%

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 7502 6432 24 24 0.32% 0.37%
B 7502 6432 20 20 0.27% 0.31%
C 7502 6432 0 0 0.00% 0.00%
D 7502 6433 5 5 0.07% 0.08%

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 94183 584.78 780 761 159.8
A 9 143 89756 557.07 780 761 159.8
A 12 96 16190 96.58 780 761 159.8
B 7 220 166990 1125.95 783 764 147.6
B 0 189 87409 586.9 783 764 147.6
B 0 190 75217 504.31 783 764 147.6
C 14 238 114976 653.69 753 759 174.7
C 3 233 28411 158.26 753 759 174.7
C 0 207 11024 58.75 753 759 174.7
D 5 222 53801 283.55 768 744 187.1
D 7 38 36673 192.01 768 744 187.1
D 2 234 25096 130.14 768 744 187.1

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