ASTROSAT CZTI

Data Quality Report

Orbit 15067

Creation date: 2024-06-27T17:03:17.233417
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_060T01_9000002216_15067cztM0_level2.evt modeM0/AS1T02_060T01_9000002216_15067cztM0_level2_quad_clean.evt
Size (bytes)474,647,04092,779,200
Size452.7 MB 88.5 MB
Events in quadrant A3,354,871603,119
Events in quadrant B4,006,556626,156
Events in quadrant C3,601,253590,914
Events in quadrant D2,993,176558,704

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136823
B0157392
C0146742
D0129772

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6178370.598899%
B61781141.845257%
C6178220.356102%
D6178230.372289%

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 7524 6180 0 0 0.00% 0.00%
B 7524 6180 78 78 1.04% 1.26%
C 7524 6180 0 0 0.00% 0.00%
D 7524 6180 9 9 0.12% 0.15%

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 94137 581.3 804 791 160.6
A 1 162 71529 440.51 804 791 160.6
A 1 178 37199 226.73 804 791 160.6
B 3 64 832226 5509.66 806 789 150.9
B 4 80 19135 121.57 806 789 150.9
B 12 111 17694 112.02 806 789 150.9
C 3 233 569554 3174.36 777 785 179.2
C 13 61 5524 26.45 777 785 179.2
C 3 232 2779 11.13 777 785 179.2
D 13 249 60144 317.76 767 748 186.9
D 10 70 25825 134.16 767 748 186.9
D 2 234 18550 95.24 767 748 186.9

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