ASTROSAT CZTI

Data Quality Report

Orbit 13434

Creation date: 2024-06-27T16:40:44.904147
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/AS1A04_103T01_9000001988_13434cztM0_level2.evt modeM0/AS1A04_103T01_9000001988_13434cztM0_level2_quad_clean.evt
Size (bytes)496,062,72094,723,200
Size473.1 MB 90.3 MB
Events in quadrant A3,145,719614,431
Events in quadrant B3,405,560627,287
Events in quadrant C3,136,856607,613
Events in quadrant D4,889,714561,811

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136973
B0144222
C0136632
D0189712

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6555470.717010%
B65551161.769641%
C6555360.549199%
D65555147.841342%

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 8921 6557 1 1 0.01% 0.02%
B 8921 6557 20 20 0.22% 0.31%
C 8921 6558 0 0 0.00% 0.00%
D 8921 6557 409 409 4.58% 6.24%

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 16077 93.54 809 794 163.4
A 0 226 7388 40.36 809 794 163.4
A 15 69 6651 35.85 809 794 163.4
B 4 142 127170 822.42 814 792 153.7
B 4 173 25363 159.9 814 792 153.7
B 10 245 23155 145.53 814 792 153.7
C 3 233 63897 345.83 785 788 182.5
C 14 220 10250 51.85 785 788 182.5
C 13 61 5714 26.99 785 788 182.5
D 13 249 1943898 10841.75 749 729 179.2
D 2 136 59650 328.74 749 729 179.2
D 8 195 56677 312.16 749 729 179.2

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