ASTROSAT CZTI

Data Quality Report

Orbit 15343

Creation date: 2024-06-27T17:07:10.060193
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_073T01_9000002260_15343cztM0_level2.evt modeM0/AS1T02_073T01_9000002260_15343cztM0_level2_quad_clean.evt
Size (bytes)447,439,680111,864,960
Size426.7 MB 106.7 MB
Events in quadrant A3,047,295747,222
Events in quadrant B3,093,754764,550
Events in quadrant C3,232,962754,739
Events in quadrant D3,765,553698,763

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129112
B0129811
C0133121
D0153941

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6057350.577844%
B6057410.676903%
C6057250.412746%
D60572353.879808%

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 7428 6059 3 3 0.04% 0.05%
B 7428 6059 0 0 0.00% 0.00%
C 7428 6059 0 0 0.00% 0.00%
D 7428 6059 191 191 2.57% 3.15%

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 9 143 19552 119.04 788 774 157.7
A 0 226 6955 39.18 788 774 157.7
A 12 194 6037 33.37 788 774 157.7
B 12 111 17095 110.44 786 767 147.8
B 11 111 14667 94.02 786 767 147.8
B 14 111 12788 81.31 786 767 147.8
C 3 233 174908 973.91 781 789 178.8
C 7 247 13179 69.3 781 789 178.8
C 13 61 5444 26.04 781 789 178.8
D 1 255 777599 4290.78 760 742 181.1
D 10 70 53208 289.78 760 742 181.1
D 2 234 23041 123.16 760 742 181.1

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