ASTROSAT CZTI

Data Quality Report

Orbit 03161

Creation date: 2024-06-27T14:25:23.926949
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_218T02_9000000434_03161cztM0_level2.evt modeM0/AS1G05_218T02_9000000434_03161cztM0_level2_quad_clean.evt
Size (bytes)565,289,28098,081,280
Size539.1 MB 93.5 MB
Events in quadrant A3,515,086632,192
Events in quadrant B3,647,745641,561
Events in quadrant C5,409,407581,845
Events in quadrant D4,049,496603,565

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158182
B0159451
C0212151
D0172191

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73391542.098379%
B7339891.212699%
C733983311.350320%
D73391892.575283%

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 7574 7340 33 33 0.44% 0.45%
B 7574 7340 17 17 0.22% 0.23%
C 7574 7340 738 738 9.74% 10.05%
D 7574 7340 127 127 1.68% 1.73%

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 0 199 176192 1041.1 817 797 168.5
A 12 247 116327 685.76 817 797 168.5
A 0 226 26573 153.0 817 797 168.5
B 4 81 233813 1427.81 837 816 163.2
B 15 85 45797 275.64 837 816 163.2
B 0 219 33433 199.88 837 816 163.2
C 1 192 1954247 10960.23 763 766 178.2
C 14 234 185260 1035.12 763 766 178.2
C 14 223 159735 891.91 763 766 178.2
D 5 233 302923 1549.81 801 775 195.0
D 2 136 163417 834.24 801 775 195.0
D 13 120 123957 631.84 801 775 195.0

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