ASTROSAT CZTI

Data Quality Report

Orbit 03418

Creation date: 2024-06-27T14:28:44.777074
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/AS1G05_167T01_9000000456_03418cztM0_level2.evt modeM0/AS1G05_167T01_9000000456_03418cztM0_level2_quad_clean.evt
Size (bytes)528,033,60087,655,680
Size503.6 MB 83.6 MB
Events in quadrant A3,177,093559,871
Events in quadrant B3,429,633560,912
Events in quadrant C5,471,106525,035
Events in quadrant D3,454,131536,283

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142513
B0147712
C0208152
D0151072

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6771240.354453%
B6771450.664599%
C677169210.220056%
D6771751.107665%

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 7656 6772 1 1 0.01% 0.01%
B 7656 6772 4 4 0.05% 0.06%
C 7655 6771 472 472 6.17% 6.97%
D 7656 6772 46 46 0.60% 0.68%

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 8 15 102387 623.29 792 775 163.0
A 0 118 11577 66.26 792 775 163.0
A 0 226 9191 51.62 792 775 163.0
B 5 70 97627 618.6 809 792 156.5
B 15 204 88733 561.79 809 792 156.5
B 14 167 67117 423.7 809 792 156.5
C 7 220 1451142 8306.04 745 751 174.6
C 14 223 966788 5532.26 745 751 174.6
C 10 19 66304 375.41 745 751 174.6
D 13 223 250908 1362.95 762 742 183.5
D 2 37 146369 793.4 762 742 183.5
D 7 46 59961 322.64 762 742 183.5

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